/src/cpython/Python/Python-ast.c

Source
// File automatically generated by Parser/asdl_c.py.

#include "Python.h"
#include "pycore_ast.h"
#include "pycore_ast_state.h"     // struct ast_state
#include "pycore_ceval.h"         // _Py_EnterRecursiveCall()
#include "pycore_lock.h"          // _PyOnceFlag
#include "pycore_modsupport.h"    // _PyArg_NoPositional()
#include "pycore_pystate.h"       // _PyInterpreterState_GET()
#include "pycore_runtime.h"       // _Py_ID()
#include "pycore_setobject.h"     // _PySet_NextEntry()
#include "pycore_unionobject.h"   // _Py_union_type_or

#include <stddef.h>               // offsetof()


// Forward declaration
static int init_types(void *arg);

static struct ast_state*
get_ast_state(void)
{
    PyInterpreterState *interp = _PyInterpreterState_GET();
    struct ast_state *state = &interp->ast;
    assert(!state->finalized);
    if (_PyOnceFlag_CallOnce(&state->once, (_Py_once_fn_t *)&init_types, state) < 0) {
        return NULL;
    }
    return state;
}

void _PyAST_Fini(PyInterpreterState *interp)
{
    struct ast_state *state = &interp->ast;

    static const size_t offsets[] = {
        offsetof(struct ast_state, AST_type),
        offsetof(struct ast_state, Add_singleton),
        offsetof(struct ast_state, Add_type),
        offsetof(struct ast_state, And_singleton),
        offsetof(struct ast_state, And_type),
        offsetof(struct ast_state, AnnAssign_type),
        offsetof(struct ast_state, Assert_type),
        offsetof(struct ast_state, Assign_type),
        offsetof(struct ast_state, AsyncFor_type),
        offsetof(struct ast_state, AsyncFunctionDef_type),
        offsetof(struct ast_state, AsyncWith_type),
        offsetof(struct ast_state, Attribute_type),
        offsetof(struct ast_state, AugAssign_type),
        offsetof(struct ast_state, Await_type),
        offsetof(struct ast_state, BinOp_type),
        offsetof(struct ast_state, BitAnd_singleton),
        offsetof(struct ast_state, BitAnd_type),
        offsetof(struct ast_state, BitOr_singleton),
        offsetof(struct ast_state, BitOr_type),
        offsetof(struct ast_state, BitXor_singleton),
        offsetof(struct ast_state, BitXor_type),
        offsetof(struct ast_state, BoolOp_type),
        offsetof(struct ast_state, Break_type),
        offsetof(struct ast_state, Call_type),
        offsetof(struct ast_state, ClassDef_type),
        offsetof(struct ast_state, Compare_type),
        offsetof(struct ast_state, Constant_type),
        offsetof(struct ast_state, Continue_type),
        offsetof(struct ast_state, Del_singleton),
        offsetof(struct ast_state, Del_type),
        offsetof(struct ast_state, Delete_type),
        offsetof(struct ast_state, DictComp_type),
        offsetof(struct ast_state, Dict_type),
        offsetof(struct ast_state, Div_singleton),
        offsetof(struct ast_state, Div_type),
        offsetof(struct ast_state, Eq_singleton),
        offsetof(struct ast_state, Eq_type),
        offsetof(struct ast_state, ExceptHandler_type),
        offsetof(struct ast_state, Expr_type),
        offsetof(struct ast_state, Expression_type),
        offsetof(struct ast_state, FloorDiv_singleton),
        offsetof(struct ast_state, FloorDiv_type),
        offsetof(struct ast_state, For_type),
        offsetof(struct ast_state, FormattedValue_type),
        offsetof(struct ast_state, FunctionDef_type),
        offsetof(struct ast_state, FunctionType_type),
        offsetof(struct ast_state, GeneratorExp_type),
        offsetof(struct ast_state, Global_type),
        offsetof(struct ast_state, GtE_singleton),
        offsetof(struct ast_state, GtE_type),
        offsetof(struct ast_state, Gt_singleton),
        offsetof(struct ast_state, Gt_type),
        offsetof(struct ast_state, IfExp_type),
        offsetof(struct ast_state, If_type),
        offsetof(struct ast_state, ImportFrom_type),
        offsetof(struct ast_state, Import_type),
        offsetof(struct ast_state, In_singleton),
        offsetof(struct ast_state, In_type),
        offsetof(struct ast_state, Interactive_type),
        offsetof(struct ast_state, Interpolation_type),
        offsetof(struct ast_state, Invert_singleton),
        offsetof(struct ast_state, Invert_type),
        offsetof(struct ast_state, IsNot_singleton),
        offsetof(struct ast_state, IsNot_type),
        offsetof(struct ast_state, Is_singleton),
        offsetof(struct ast_state, Is_type),
        offsetof(struct ast_state, JoinedStr_type),
        offsetof(struct ast_state, LShift_singleton),
        offsetof(struct ast_state, LShift_type),
        offsetof(struct ast_state, Lambda_type),
        offsetof(struct ast_state, ListComp_type),
        offsetof(struct ast_state, List_type),
        offsetof(struct ast_state, Load_singleton),
        offsetof(struct ast_state, Load_type),
        offsetof(struct ast_state, LtE_singleton),
        offsetof(struct ast_state, LtE_type),
        offsetof(struct ast_state, Lt_singleton),
        offsetof(struct ast_state, Lt_type),
        offsetof(struct ast_state, MatMult_singleton),
        offsetof(struct ast_state, MatMult_type),
        offsetof(struct ast_state, MatchAs_type),
        offsetof(struct ast_state, MatchClass_type),
        offsetof(struct ast_state, MatchMapping_type),
        offsetof(struct ast_state, MatchOr_type),
        offsetof(struct ast_state, MatchSequence_type),
        offsetof(struct ast_state, MatchSingleton_type),
        offsetof(struct ast_state, MatchStar_type),
        offsetof(struct ast_state, MatchValue_type),
        offsetof(struct ast_state, Match_type),
        offsetof(struct ast_state, Mod_singleton),
        offsetof(struct ast_state, Mod_type),
        offsetof(struct ast_state, Module_type),
        offsetof(struct ast_state, Mult_singleton),
        offsetof(struct ast_state, Mult_type),
        offsetof(struct ast_state, Name_type),
        offsetof(struct ast_state, NamedExpr_type),
        offsetof(struct ast_state, Nonlocal_type),
        offsetof(struct ast_state, NotEq_singleton),
        offsetof(struct ast_state, NotEq_type),
        offsetof(struct ast_state, NotIn_singleton),
        offsetof(struct ast_state, NotIn_type),
        offsetof(struct ast_state, Not_singleton),
        offsetof(struct ast_state, Not_type),
        offsetof(struct ast_state, Or_singleton),
        offsetof(struct ast_state, Or_type),
        offsetof(struct ast_state, ParamSpec_type),
        offsetof(struct ast_state, Pass_type),
        offsetof(struct ast_state, Pow_singleton),
        offsetof(struct ast_state, Pow_type),
        offsetof(struct ast_state, RShift_singleton),
        offsetof(struct ast_state, RShift_type),
        offsetof(struct ast_state, Raise_type),
        offsetof(struct ast_state, Return_type),
        offsetof(struct ast_state, SetComp_type),
        offsetof(struct ast_state, Set_type),
        offsetof(struct ast_state, Slice_type),
        offsetof(struct ast_state, Starred_type),
        offsetof(struct ast_state, Store_singleton),
        offsetof(struct ast_state, Store_type),
        offsetof(struct ast_state, Sub_singleton),
        offsetof(struct ast_state, Sub_type),
        offsetof(struct ast_state, Subscript_type),
        offsetof(struct ast_state, TemplateStr_type),
        offsetof(struct ast_state, TryStar_type),
        offsetof(struct ast_state, Try_type),
        offsetof(struct ast_state, Tuple_type),
        offsetof(struct ast_state, TypeAlias_type),
        offsetof(struct ast_state, TypeIgnore_type),
        offsetof(struct ast_state, TypeVarTuple_type),
        offsetof(struct ast_state, TypeVar_type),
        offsetof(struct ast_state, UAdd_singleton),
        offsetof(struct ast_state, UAdd_type),
        offsetof(struct ast_state, USub_singleton),
        offsetof(struct ast_state, USub_type),
        offsetof(struct ast_state, UnaryOp_type),
        offsetof(struct ast_state, While_type),
        offsetof(struct ast_state, With_type),
        offsetof(struct ast_state, YieldFrom_type),
        offsetof(struct ast_state, Yield_type),
        offsetof(struct ast_state, __dict__),
        offsetof(struct ast_state, __doc__),
        offsetof(struct ast_state, __match_args__),
        offsetof(struct ast_state, __module__),
        offsetof(struct ast_state, _attributes),
        offsetof(struct ast_state, _fields),
        offsetof(struct ast_state, abstract_types),
        offsetof(struct ast_state, alias_type),
        offsetof(struct ast_state, annotation),
        offsetof(struct ast_state, arg),
        offsetof(struct ast_state, arg_type),
        offsetof(struct ast_state, args),
        offsetof(struct ast_state, argtypes),
        offsetof(struct ast_state, arguments_type),
        offsetof(struct ast_state, asname),
        offsetof(struct ast_state, ast),
        offsetof(struct ast_state, attr),
        offsetof(struct ast_state, bases),
        offsetof(struct ast_state, body),
        offsetof(struct ast_state, boolop_type),
        offsetof(struct ast_state, bound),
        offsetof(struct ast_state, cases),
        offsetof(struct ast_state, cause),
        offsetof(struct ast_state, cls),
        offsetof(struct ast_state, cmpop_type),
        offsetof(struct ast_state, col_offset),
        offsetof(struct ast_state, comparators),
        offsetof(struct ast_state, comprehension_type),
        offsetof(struct ast_state, context_expr),
        offsetof(struct ast_state, conversion),
        offsetof(struct ast_state, ctx),
        offsetof(struct ast_state, decorator_list),
        offsetof(struct ast_state, default_value),
        offsetof(struct ast_state, defaults),
        offsetof(struct ast_state, elt),
        offsetof(struct ast_state, elts),
        offsetof(struct ast_state, end_col_offset),
        offsetof(struct ast_state, end_lineno),
        offsetof(struct ast_state, exc),
        offsetof(struct ast_state, excepthandler_type),
        offsetof(struct ast_state, expr_context_type),
        offsetof(struct ast_state, expr_type),
        offsetof(struct ast_state, finalbody),
        offsetof(struct ast_state, format_spec),
        offsetof(struct ast_state, func),
        offsetof(struct ast_state, generators),
        offsetof(struct ast_state, guard),
        offsetof(struct ast_state, handlers),
        offsetof(struct ast_state, id),
        offsetof(struct ast_state, ifs),
        offsetof(struct ast_state, is_async),
        offsetof(struct ast_state, is_lazy),
        offsetof(struct ast_state, items),
        offsetof(struct ast_state, iter),
        offsetof(struct ast_state, key),
        offsetof(struct ast_state, keys),
        offsetof(struct ast_state, keyword_type),
        offsetof(struct ast_state, keywords),
        offsetof(struct ast_state, kind),
        offsetof(struct ast_state, kw_defaults),
        offsetof(struct ast_state, kwarg),
        offsetof(struct ast_state, kwd_attrs),
        offsetof(struct ast_state, kwd_patterns),
        offsetof(struct ast_state, kwonlyargs),
        offsetof(struct ast_state, left),
        offsetof(struct ast_state, level),
        offsetof(struct ast_state, lineno),
        offsetof(struct ast_state, lower),
        offsetof(struct ast_state, match_case_type),
        offsetof(struct ast_state, mod_type),
        offsetof(struct ast_state, module),
        offsetof(struct ast_state, msg),
        offsetof(struct ast_state, name),
        offsetof(struct ast_state, names),
        offsetof(struct ast_state, op),
        offsetof(struct ast_state, operand),
        offsetof(struct ast_state, operator_type),
        offsetof(struct ast_state, ops),
        offsetof(struct ast_state, optional_vars),
        offsetof(struct ast_state, orelse),
        offsetof(struct ast_state, pattern),
        offsetof(struct ast_state, pattern_type),
        offsetof(struct ast_state, patterns),
        offsetof(struct ast_state, posonlyargs),
        offsetof(struct ast_state, rest),
        offsetof(struct ast_state, returns),
        offsetof(struct ast_state, right),
        offsetof(struct ast_state, simple),
        offsetof(struct ast_state, slice),
        offsetof(struct ast_state, step),
        offsetof(struct ast_state, stmt_type),
        offsetof(struct ast_state, str),
        offsetof(struct ast_state, subject),
        offsetof(struct ast_state, tag),
        offsetof(struct ast_state, target),
        offsetof(struct ast_state, targets),
        offsetof(struct ast_state, test),
        offsetof(struct ast_state, type),
        offsetof(struct ast_state, type_comment),
        offsetof(struct ast_state, type_ignore_type),
        offsetof(struct ast_state, type_ignores),
        offsetof(struct ast_state, type_param_type),
        offsetof(struct ast_state, type_params),
        offsetof(struct ast_state, unaryop_type),
        offsetof(struct ast_state, upper),
        offsetof(struct ast_state, value),
        offsetof(struct ast_state, values),
        offsetof(struct ast_state, vararg),
        offsetof(struct ast_state, withitem_type),
    };

    for (size_t i = 0; i < Py_ARRAY_LENGTH(offsets); i++) {
        PyObject **field = (PyObject **)((char *)state + offsets[i]);
        Py_CLEAR(*field);
    }
    state->finalized = 1;
    state->once = (_PyOnceFlag){0};
}

static int init_identifiers(struct ast_state *state)
{
    if ((state->__dict__ = PyUnicode_InternFromString("__dict__")) == NULL) return -1;
    if ((state->__doc__ = PyUnicode_InternFromString("__doc__")) == NULL) return -1;
    if ((state->__match_args__ = PyUnicode_InternFromString("__match_args__")) == NULL) return -1;
    if ((state->__module__ = PyUnicode_InternFromString("__module__")) == NULL) return -1;
    if ((state->_attributes = PyUnicode_InternFromString("_attributes")) == NULL) return -1;
    if ((state->_fields = PyUnicode_InternFromString("_fields")) == NULL) return -1;
    if ((state->annotation = PyUnicode_InternFromString("annotation")) == NULL) return -1;
    if ((state->arg = PyUnicode_InternFromString("arg")) == NULL) return -1;
    if ((state->args = PyUnicode_InternFromString("args")) == NULL) return -1;
    if ((state->argtypes = PyUnicode_InternFromString("argtypes")) == NULL) return -1;
    if ((state->asname = PyUnicode_InternFromString("asname")) == NULL) return -1;
    if ((state->ast = PyUnicode_InternFromString("ast")) == NULL) return -1;
    if ((state->attr = PyUnicode_InternFromString("attr")) == NULL) return -1;
    if ((state->bases = PyUnicode_InternFromString("bases")) == NULL) return -1;
    if ((state->body = PyUnicode_InternFromString("body")) == NULL) return -1;
    if ((state->bound = PyUnicode_InternFromString("bound")) == NULL) return -1;
    if ((state->cases = PyUnicode_InternFromString("cases")) == NULL) return -1;
    if ((state->cause = PyUnicode_InternFromString("cause")) == NULL) return -1;
    if ((state->cls = PyUnicode_InternFromString("cls")) == NULL) return -1;
    if ((state->col_offset = PyUnicode_InternFromString("col_offset")) == NULL) return -1;
    if ((state->comparators = PyUnicode_InternFromString("comparators")) == NULL) return -1;
    if ((state->context_expr = PyUnicode_InternFromString("context_expr")) == NULL) return -1;
    if ((state->conversion = PyUnicode_InternFromString("conversion")) == NULL) return -1;
    if ((state->ctx = PyUnicode_InternFromString("ctx")) == NULL) return -1;
    if ((state->decorator_list = PyUnicode_InternFromString("decorator_list")) == NULL) return -1;
    if ((state->default_value = PyUnicode_InternFromString("default_value")) == NULL) return -1;
    if ((state->defaults = PyUnicode_InternFromString("defaults")) == NULL) return -1;
    if ((state->elt = PyUnicode_InternFromString("elt")) == NULL) return -1;
    if ((state->elts = PyUnicode_InternFromString("elts")) == NULL) return -1;
    if ((state->end_col_offset = PyUnicode_InternFromString("end_col_offset")) == NULL) return -1;
    if ((state->end_lineno = PyUnicode_InternFromString("end_lineno")) == NULL) return -1;
    if ((state->exc = PyUnicode_InternFromString("exc")) == NULL) return -1;
    if ((state->finalbody = PyUnicode_InternFromString("finalbody")) == NULL) return -1;
    if ((state->format_spec = PyUnicode_InternFromString("format_spec")) == NULL) return -1;
    if ((state->func = PyUnicode_InternFromString("func")) == NULL) return -1;
    if ((state->generators = PyUnicode_InternFromString("generators")) == NULL) return -1;
    if ((state->guard = PyUnicode_InternFromString("guard")) == NULL) return -1;
    if ((state->handlers = PyUnicode_InternFromString("handlers")) == NULL) return -1;
    if ((state->id = PyUnicode_InternFromString("id")) == NULL) return -1;
    if ((state->ifs = PyUnicode_InternFromString("ifs")) == NULL) return -1;
    if ((state->is_async = PyUnicode_InternFromString("is_async")) == NULL) return -1;
    if ((state->is_lazy = PyUnicode_InternFromString("is_lazy")) == NULL) return -1;
    if ((state->items = PyUnicode_InternFromString("items")) == NULL) return -1;
    if ((state->iter = PyUnicode_InternFromString("iter")) == NULL) return -1;
    if ((state->key = PyUnicode_InternFromString("key")) == NULL) return -1;
    if ((state->keys = PyUnicode_InternFromString("keys")) == NULL) return -1;
    if ((state->keywords = PyUnicode_InternFromString("keywords")) == NULL) return -1;
    if ((state->kind = PyUnicode_InternFromString("kind")) == NULL) return -1;
    if ((state->kw_defaults = PyUnicode_InternFromString("kw_defaults")) == NULL) return -1;
    if ((state->kwarg = PyUnicode_InternFromString("kwarg")) == NULL) return -1;
    if ((state->kwd_attrs = PyUnicode_InternFromString("kwd_attrs")) == NULL) return -1;
    if ((state->kwd_patterns = PyUnicode_InternFromString("kwd_patterns")) == NULL) return -1;
    if ((state->kwonlyargs = PyUnicode_InternFromString("kwonlyargs")) == NULL) return -1;
    if ((state->left = PyUnicode_InternFromString("left")) == NULL) return -1;
    if ((state->level = PyUnicode_InternFromString("level")) == NULL) return -1;
    if ((state->lineno = PyUnicode_InternFromString("lineno")) == NULL) return -1;
    if ((state->lower = PyUnicode_InternFromString("lower")) == NULL) return -1;
    if ((state->module = PyUnicode_InternFromString("module")) == NULL) return -1;
    if ((state->msg = PyUnicode_InternFromString("msg")) == NULL) return -1;
    if ((state->name = PyUnicode_InternFromString("name")) == NULL) return -1;
    if ((state->names = PyUnicode_InternFromString("names")) == NULL) return -1;
    if ((state->op = PyUnicode_InternFromString("op")) == NULL) return -1;
    if ((state->operand = PyUnicode_InternFromString("operand")) == NULL) return -1;
    if ((state->ops = PyUnicode_InternFromString("ops")) == NULL) return -1;
    if ((state->optional_vars = PyUnicode_InternFromString("optional_vars")) == NULL) return -1;
    if ((state->orelse = PyUnicode_InternFromString("orelse")) == NULL) return -1;
    if ((state->pattern = PyUnicode_InternFromString("pattern")) == NULL) return -1;
    if ((state->patterns = PyUnicode_InternFromString("patterns")) == NULL) return -1;
    if ((state->posonlyargs = PyUnicode_InternFromString("posonlyargs")) == NULL) return -1;
    if ((state->rest = PyUnicode_InternFromString("rest")) == NULL) return -1;
    if ((state->returns = PyUnicode_InternFromString("returns")) == NULL) return -1;
    if ((state->right = PyUnicode_InternFromString("right")) == NULL) return -1;
    if ((state->simple = PyUnicode_InternFromString("simple")) == NULL) return -1;
    if ((state->slice = PyUnicode_InternFromString("slice")) == NULL) return -1;
    if ((state->step = PyUnicode_InternFromString("step")) == NULL) return -1;
    if ((state->str = PyUnicode_InternFromString("str")) == NULL) return -1;
    if ((state->subject = PyUnicode_InternFromString("subject")) == NULL) return -1;
    if ((state->tag = PyUnicode_InternFromString("tag")) == NULL) return -1;
    if ((state->target = PyUnicode_InternFromString("target")) == NULL) return -1;
    if ((state->targets = PyUnicode_InternFromString("targets")) == NULL) return -1;
    if ((state->test = PyUnicode_InternFromString("test")) == NULL) return -1;
    if ((state->type = PyUnicode_InternFromString("type")) == NULL) return -1;
    if ((state->type_comment = PyUnicode_InternFromString("type_comment")) == NULL) return -1;
    if ((state->type_ignores = PyUnicode_InternFromString("type_ignores")) == NULL) return -1;
    if ((state->type_params = PyUnicode_InternFromString("type_params")) == NULL) return -1;
    if ((state->upper = PyUnicode_InternFromString("upper")) == NULL) return -1;
    if ((state->value = PyUnicode_InternFromString("value")) == NULL) return -1;
    if ((state->values = PyUnicode_InternFromString("values")) == NULL) return -1;
    if ((state->vararg = PyUnicode_InternFromString("vararg")) == NULL) return -1;
    return 0;
};

GENERATE_ASDL_SEQ_CONSTRUCTOR(mod, mod_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(stmt, stmt_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(expr, expr_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(comprehension, comprehension_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(excepthandler, excepthandler_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(arguments, arguments_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(arg, arg_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(keyword, keyword_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(alias, alias_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(withitem, withitem_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(match_case, match_case_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(pattern, pattern_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(type_ignore, type_ignore_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(type_param, type_param_ty)

static PyObject* ast2obj_mod(struct ast_state *state, void*);
static const char * const Module_fields[]={
    "body",
    "type_ignores",
};
static const char * const Interactive_fields[]={
    "body",
};
static const char * const Expression_fields[]={
    "body",
};
static const char * const FunctionType_fields[]={
    "argtypes",
    "returns",
};
static const char * const stmt_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static PyObject* ast2obj_stmt(struct ast_state *state, void*);
static const char * const FunctionDef_fields[]={
    "name",
    "args",
    "body",
    "decorator_list",
    "returns",
    "type_comment",
    "type_params",
};
static const char * const AsyncFunctionDef_fields[]={
    "name",
    "args",
    "body",
    "decorator_list",
    "returns",
    "type_comment",
    "type_params",
};
static const char * const ClassDef_fields[]={
    "name",
    "bases",
    "keywords",
    "body",
    "decorator_list",
    "type_params",
};
static const char * const Return_fields[]={
    "value",
};
static const char * const Delete_fields[]={
    "targets",
};
static const char * const Assign_fields[]={
    "targets",
    "value",
    "type_comment",
};
static const char * const TypeAlias_fields[]={
    "name",
    "type_params",
    "value",
};
static const char * const AugAssign_fields[]={
    "target",
    "op",
    "value",
};
static const char * const AnnAssign_fields[]={
    "target",
    "annotation",
    "value",
    "simple",
};
static const char * const For_fields[]={
    "target",
    "iter",
    "body",
    "orelse",
    "type_comment",
};
static const char * const AsyncFor_fields[]={
    "target",
    "iter",
    "body",
    "orelse",
    "type_comment",
};
static const char * const While_fields[]={
    "test",
    "body",
    "orelse",
};
static const char * const If_fields[]={
    "test",
    "body",
    "orelse",
};
static const char * const With_fields[]={
    "items",
    "body",
    "type_comment",
};
static const char * const AsyncWith_fields[]={
    "items",
    "body",
    "type_comment",
};
static const char * const Match_fields[]={
    "subject",
    "cases",
};
static const char * const Raise_fields[]={
    "exc",
    "cause",
};
static const char * const Try_fields[]={
    "body",
    "handlers",
    "orelse",
    "finalbody",
};
static const char * const TryStar_fields[]={
    "body",
    "handlers",
    "orelse",
    "finalbody",
};
static const char * const Assert_fields[]={
    "test",
    "msg",
};
static const char * const Import_fields[]={
    "names",
    "is_lazy",
};
static const char * const ImportFrom_fields[]={
    "module",
    "names",
    "level",
    "is_lazy",
};
static const char * const Global_fields[]={
    "names",
};
static const char * const Nonlocal_fields[]={
    "names",
};
static const char * const Expr_fields[]={
    "value",
};
static const char * const expr_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static PyObject* ast2obj_expr(struct ast_state *state, void*);
static const char * const BoolOp_fields[]={
    "op",
    "values",
};
static const char * const NamedExpr_fields[]={
    "target",
    "value",
};
static const char * const BinOp_fields[]={
    "left",
    "op",
    "right",
};
static const char * const UnaryOp_fields[]={
    "op",
    "operand",
};
static const char * const Lambda_fields[]={
    "args",
    "body",
};
static const char * const IfExp_fields[]={
    "test",
    "body",
    "orelse",
};
static const char * const Dict_fields[]={
    "keys",
    "values",
};
static const char * const Set_fields[]={
    "elts",
};
static const char * const ListComp_fields[]={
    "elt",
    "generators",
};
static const char * const SetComp_fields[]={
    "elt",
    "generators",
};
static const char * const DictComp_fields[]={
    "key",
    "value",
    "generators",
};
static const char * const GeneratorExp_fields[]={
    "elt",
    "generators",
};
static const char * const Await_fields[]={
    "value",
};
static const char * const Yield_fields[]={
    "value",
};
static const char * const YieldFrom_fields[]={
    "value",
};
static const char * const Compare_fields[]={
    "left",
    "ops",
    "comparators",
};
static const char * const Call_fields[]={
    "func",
    "args",
    "keywords",
};
static const char * const FormattedValue_fields[]={
    "value",
    "conversion",
    "format_spec",
};
static const char * const Interpolation_fields[]={
    "value",
    "str",
    "conversion",
    "format_spec",
};
static const char * const JoinedStr_fields[]={
    "values",
};
static const char * const TemplateStr_fields[]={
    "values",
};
static const char * const Constant_fields[]={
    "value",
    "kind",
};
static const char * const Attribute_fields[]={
    "value",
    "attr",
    "ctx",
};
static const char * const Subscript_fields[]={
    "value",
    "slice",
    "ctx",
};
static const char * const Starred_fields[]={
    "value",
    "ctx",
};
static const char * const Name_fields[]={
    "id",
    "ctx",
};
static const char * const List_fields[]={
    "elts",
    "ctx",
};
static const char * const Tuple_fields[]={
    "elts",
    "ctx",
};
static const char * const Slice_fields[]={
    "lower",
    "upper",
    "step",
};
static PyObject* ast2obj_expr_context(struct ast_state *state, expr_context_ty);
static PyObject* ast2obj_boolop(struct ast_state *state, boolop_ty);
static PyObject* ast2obj_operator(struct ast_state *state, operator_ty);
static PyObject* ast2obj_unaryop(struct ast_state *state, unaryop_ty);
static PyObject* ast2obj_cmpop(struct ast_state *state, cmpop_ty);
static PyObject* ast2obj_comprehension(struct ast_state *state, void*);
static const char * const comprehension_fields[]={
    "target",
    "iter",
    "ifs",
    "is_async",
};
static const char * const excepthandler_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static PyObject* ast2obj_excepthandler(struct ast_state *state, void*);
static const char * const ExceptHandler_fields[]={
    "type",
    "name",
    "body",
};
static PyObject* ast2obj_arguments(struct ast_state *state, void*);
static const char * const arguments_fields[]={
    "posonlyargs",
    "args",
    "vararg",
    "kwonlyargs",
    "kw_defaults",
    "kwarg",
    "defaults",
};
static PyObject* ast2obj_arg(struct ast_state *state, void*);
static const char * const arg_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static const char * const arg_fields[]={
    "arg",
    "annotation",
    "type_comment",
};
static PyObject* ast2obj_keyword(struct ast_state *state, void*);
static const char * const keyword_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static const char * const keyword_fields[]={
    "arg",
    "value",
};
static PyObject* ast2obj_alias(struct ast_state *state, void*);
static const char * const alias_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static const char * const alias_fields[]={
    "name",
    "asname",
};
static PyObject* ast2obj_withitem(struct ast_state *state, void*);
static const char * const withitem_fields[]={
    "context_expr",
    "optional_vars",
};
static PyObject* ast2obj_match_case(struct ast_state *state, void*);
static const char * const match_case_fields[]={
    "pattern",
    "guard",
    "body",
};
static const char * const pattern_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static PyObject* ast2obj_pattern(struct ast_state *state, void*);
static const char * const MatchValue_fields[]={
    "value",
};
static const char * const MatchSingleton_fields[]={
    "value",
};
static const char * const MatchSequence_fields[]={
    "patterns",
};
static const char * const MatchMapping_fields[]={
    "keys",
    "patterns",
    "rest",
};
static const char * const MatchClass_fields[]={
    "cls",
    "patterns",
    "kwd_attrs",
    "kwd_patterns",
};
static const char * const MatchStar_fields[]={
    "name",
};
static const char * const MatchAs_fields[]={
    "pattern",
    "name",
};
static const char * const MatchOr_fields[]={
    "patterns",
};
static PyObject* ast2obj_type_ignore(struct ast_state *state, void*);
static const char * const TypeIgnore_fields[]={
    "lineno",
    "tag",
};
static const char * const type_param_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static PyObject* ast2obj_type_param(struct ast_state *state, void*);
static const char * const TypeVar_fields[]={
    "name",
    "bound",
    "default_value",
};
static const char * const ParamSpec_fields[]={
    "name",
    "default_value",
};
static const char * const TypeVarTuple_fields[]={
    "name",
    "default_value",
};


static int
add_ast_annotations(struct ast_state *state)
{
    enum {
        FIELD_OPTIONAL = 1,
        FIELD_SEQUENCE = 2,
        FIELD_BUILTIN = 4,
    };
    PyTypeObject *const builtin_types[] = {
        &PyUnicode_Type,
        &PyLong_Type,
        &PyBaseObject_Type,
    };
    // Offsets refer to this interpreter's AST state, not global types.
    static_assert(sizeof(struct ast_state) <= UINT16_MAX,
                  "ast_state offsets must fit in uint16_t");
    static const struct {
        uint16_t name_offset;
        uint16_t type_offset;  // An index into builtin_types for builtins.
        uint8_t flags;
    } fields[] = {
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, type_ignores),
         offsetof(struct ast_state, type_ignore_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, argtypes),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, returns),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, name),
         0, FIELD_BUILTIN},
        {offsetof(struct ast_state, args),
         offsetof(struct ast_state, arguments_type), 0},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, decorator_list),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, returns),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, type_comment),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, type_params),
         offsetof(struct ast_state, type_param_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, name),
         0, FIELD_BUILTIN},
        {offsetof(struct ast_state, args),
         offsetof(struct ast_state, arguments_type), 0},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, decorator_list),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, returns),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, type_comment),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, type_params),
         offsetof(struct ast_state, type_param_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, name),
         0, FIELD_BUILTIN},
        {offsetof(struct ast_state, bases),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, keywords),
         offsetof(struct ast_state, keyword_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, decorator_list),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, type_params),
         offsetof(struct ast_state, type_param_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, targets),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, targets),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, type_comment),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, name),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, type_params),
         offsetof(struct ast_state, type_param_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, target),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, op),
         offsetof(struct ast_state, operator_type), 0},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, target),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, annotation),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, simple),
         1, FIELD_BUILTIN},
        {offsetof(struct ast_state, target),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, iter),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, orelse),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, type_comment),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, target),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, iter),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, orelse),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, type_comment),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, test),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, orelse),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, test),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, orelse),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, items),
         offsetof(struct ast_state, withitem_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, type_comment),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, items),
         offsetof(struct ast_state, withitem_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, type_comment),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, subject),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, cases),
         offsetof(struct ast_state, match_case_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, exc),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, cause),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, handlers),
         offsetof(struct ast_state, excepthandler_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, orelse),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, finalbody),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, handlers),
         offsetof(struct ast_state, excepthandler_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, orelse),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, finalbody),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, test),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, msg),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, names),
         offsetof(struct ast_state, alias_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, is_lazy),
         1, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, module),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, names),
         offsetof(struct ast_state, alias_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, level),
         1, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, is_lazy),
         1, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, names),
         0, FIELD_SEQUENCE | FIELD_BUILTIN},
        {offsetof(struct ast_state, names),
         0, FIELD_SEQUENCE | FIELD_BUILTIN},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, op),
         offsetof(struct ast_state, boolop_type), 0},
        {offsetof(struct ast_state, values),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, target),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, left),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, op),
         offsetof(struct ast_state, operator_type), 0},
        {offsetof(struct ast_state, right),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, op),
         offsetof(struct ast_state, unaryop_type), 0},
        {offsetof(struct ast_state, operand),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, args),
         offsetof(struct ast_state, arguments_type), 0},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, test),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, orelse),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, keys),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, values),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, elts),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, elt),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, generators),
         offsetof(struct ast_state, comprehension_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, elt),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, generators),
         offsetof(struct ast_state, comprehension_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, key),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, generators),
         offsetof(struct ast_state, comprehension_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, elt),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, generators),
         offsetof(struct ast_state, comprehension_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, left),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, ops),
         offsetof(struct ast_state, cmpop_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, comparators),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, func),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, args),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, keywords),
         offsetof(struct ast_state, keyword_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, conversion),
         1, FIELD_BUILTIN},
        {offsetof(struct ast_state, format_spec),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, str),
         2, FIELD_BUILTIN},
        {offsetof(struct ast_state, conversion),
         1, FIELD_BUILTIN},
        {offsetof(struct ast_state, format_spec),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, values),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, values),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, value),
         2, FIELD_BUILTIN},
        {offsetof(struct ast_state, kind),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, attr),
         0, FIELD_BUILTIN},
        {offsetof(struct ast_state, ctx),
         offsetof(struct ast_state, expr_context_type), 0},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, slice),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, ctx),
         offsetof(struct ast_state, expr_context_type), 0},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, ctx),
         offsetof(struct ast_state, expr_context_type), 0},
        {offsetof(struct ast_state, id),
         0, FIELD_BUILTIN},
        {offsetof(struct ast_state, ctx),
         offsetof(struct ast_state, expr_context_type), 0},
        {offsetof(struct ast_state, elts),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, ctx),
         offsetof(struct ast_state, expr_context_type), 0},
        {offsetof(struct ast_state, elts),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, ctx),
         offsetof(struct ast_state, expr_context_type), 0},
        {offsetof(struct ast_state, lower),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, upper),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, step),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, target),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, iter),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, ifs),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, is_async),
         1, FIELD_BUILTIN},
        {offsetof(struct ast_state, type),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, name),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, posonlyargs),
         offsetof(struct ast_state, arg_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, args),
         offsetof(struct ast_state, arg_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, vararg),
         offsetof(struct ast_state, arg_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, kwonlyargs),
         offsetof(struct ast_state, arg_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, kw_defaults),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, kwarg),
         offsetof(struct ast_state, arg_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, defaults),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, arg),
         0, FIELD_BUILTIN},
        {offsetof(struct ast_state, annotation),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, type_comment),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, arg),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, name),
         0, FIELD_BUILTIN},
        {offsetof(struct ast_state, asname),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, context_expr),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, optional_vars),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, pattern),
         offsetof(struct ast_state, pattern_type), 0},
        {offsetof(struct ast_state, guard),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, body),
         offsetof(struct ast_state, stmt_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, value),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, value),
         2, FIELD_BUILTIN},
        {offsetof(struct ast_state, patterns),
         offsetof(struct ast_state, pattern_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, keys),
         offsetof(struct ast_state, expr_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, patterns),
         offsetof(struct ast_state, pattern_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, rest),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, cls),
         offsetof(struct ast_state, expr_type), 0},
        {offsetof(struct ast_state, patterns),
         offsetof(struct ast_state, pattern_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, kwd_attrs),
         0, FIELD_SEQUENCE | FIELD_BUILTIN},
        {offsetof(struct ast_state, kwd_patterns),
         offsetof(struct ast_state, pattern_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, name),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, pattern),
         offsetof(struct ast_state, pattern_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, name),
         0, FIELD_OPTIONAL | FIELD_BUILTIN},
        {offsetof(struct ast_state, patterns),
         offsetof(struct ast_state, pattern_type), FIELD_SEQUENCE},
        {offsetof(struct ast_state, lineno),
         1, FIELD_BUILTIN},
        {offsetof(struct ast_state, tag),
         0, FIELD_BUILTIN},
        {offsetof(struct ast_state, name),
         0, FIELD_BUILTIN},
        {offsetof(struct ast_state, bound),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, default_value),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, name),
         0, FIELD_BUILTIN},
        {offsetof(struct ast_state, default_value),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
        {offsetof(struct ast_state, name),
         0, FIELD_BUILTIN},
        {offsetof(struct ast_state, default_value),
         offsetof(struct ast_state, expr_type), FIELD_OPTIONAL},
    };
    static const struct {
        uint16_t type_offset;
        uint16_t first_field;
        uint16_t nfields;
    } nodes[] = {
        {offsetof(struct ast_state, Module_type), 0, 2},
        {offsetof(struct ast_state, Interactive_type), 2, 1},
        {offsetof(struct ast_state, Expression_type), 3, 1},
        {offsetof(struct ast_state, FunctionType_type), 4, 2},
        {offsetof(struct ast_state, FunctionDef_type), 6, 7},
        {offsetof(struct ast_state, AsyncFunctionDef_type), 13, 7},
        {offsetof(struct ast_state, ClassDef_type), 20, 6},
        {offsetof(struct ast_state, Return_type), 26, 1},
        {offsetof(struct ast_state, Delete_type), 27, 1},
        {offsetof(struct ast_state, Assign_type), 28, 3},
        {offsetof(struct ast_state, TypeAlias_type), 31, 3},
        {offsetof(struct ast_state, AugAssign_type), 34, 3},
        {offsetof(struct ast_state, AnnAssign_type), 37, 4},
        {offsetof(struct ast_state, For_type), 41, 5},
        {offsetof(struct ast_state, AsyncFor_type), 46, 5},
        {offsetof(struct ast_state, While_type), 51, 3},
        {offsetof(struct ast_state, If_type), 54, 3},
        {offsetof(struct ast_state, With_type), 57, 3},
        {offsetof(struct ast_state, AsyncWith_type), 60, 3},
        {offsetof(struct ast_state, Match_type), 63, 2},
        {offsetof(struct ast_state, Raise_type), 65, 2},
        {offsetof(struct ast_state, Try_type), 67, 4},
        {offsetof(struct ast_state, TryStar_type), 71, 4},
        {offsetof(struct ast_state, Assert_type), 75, 2},
        {offsetof(struct ast_state, Import_type), 77, 2},
        {offsetof(struct ast_state, ImportFrom_type), 79, 4},
        {offsetof(struct ast_state, Global_type), 83, 1},
        {offsetof(struct ast_state, Nonlocal_type), 84, 1},
        {offsetof(struct ast_state, Expr_type), 85, 1},
        {offsetof(struct ast_state, Pass_type), 86, 0},
        {offsetof(struct ast_state, Break_type), 86, 0},
        {offsetof(struct ast_state, Continue_type), 86, 0},
        {offsetof(struct ast_state, BoolOp_type), 86, 2},
        {offsetof(struct ast_state, NamedExpr_type), 88, 2},
        {offsetof(struct ast_state, BinOp_type), 90, 3},
        {offsetof(struct ast_state, UnaryOp_type), 93, 2},
        {offsetof(struct ast_state, Lambda_type), 95, 2},
        {offsetof(struct ast_state, IfExp_type), 97, 3},
        {offsetof(struct ast_state, Dict_type), 100, 2},
        {offsetof(struct ast_state, Set_type), 102, 1},
        {offsetof(struct ast_state, ListComp_type), 103, 2},
        {offsetof(struct ast_state, SetComp_type), 105, 2},
        {offsetof(struct ast_state, DictComp_type), 107, 3},
        {offsetof(struct ast_state, GeneratorExp_type), 110, 2},
        {offsetof(struct ast_state, Await_type), 112, 1},
        {offsetof(struct ast_state, Yield_type), 113, 1},
        {offsetof(struct ast_state, YieldFrom_type), 114, 1},
        {offsetof(struct ast_state, Compare_type), 115, 3},
        {offsetof(struct ast_state, Call_type), 118, 3},
        {offsetof(struct ast_state, FormattedValue_type), 121, 3},
        {offsetof(struct ast_state, Interpolation_type), 124, 4},
        {offsetof(struct ast_state, JoinedStr_type), 128, 1},
        {offsetof(struct ast_state, TemplateStr_type), 129, 1},
        {offsetof(struct ast_state, Constant_type), 130, 2},
        {offsetof(struct ast_state, Attribute_type), 132, 3},
        {offsetof(struct ast_state, Subscript_type), 135, 3},
        {offsetof(struct ast_state, Starred_type), 138, 2},
        {offsetof(struct ast_state, Name_type), 140, 2},
        {offsetof(struct ast_state, List_type), 142, 2},
        {offsetof(struct ast_state, Tuple_type), 144, 2},
        {offsetof(struct ast_state, Slice_type), 146, 3},
        {offsetof(struct ast_state, Load_type), 149, 0},
        {offsetof(struct ast_state, Store_type), 149, 0},
        {offsetof(struct ast_state, Del_type), 149, 0},
        {offsetof(struct ast_state, And_type), 149, 0},
        {offsetof(struct ast_state, Or_type), 149, 0},
        {offsetof(struct ast_state, Add_type), 149, 0},
        {offsetof(struct ast_state, Sub_type), 149, 0},
        {offsetof(struct ast_state, Mult_type), 149, 0},
        {offsetof(struct ast_state, MatMult_type), 149, 0},
        {offsetof(struct ast_state, Div_type), 149, 0},
        {offsetof(struct ast_state, Mod_type), 149, 0},
        {offsetof(struct ast_state, Pow_type), 149, 0},
        {offsetof(struct ast_state, LShift_type), 149, 0},
        {offsetof(struct ast_state, RShift_type), 149, 0},
        {offsetof(struct ast_state, BitOr_type), 149, 0},
        {offsetof(struct ast_state, BitXor_type), 149, 0},
        {offsetof(struct ast_state, BitAnd_type), 149, 0},
        {offsetof(struct ast_state, FloorDiv_type), 149, 0},
        {offsetof(struct ast_state, Invert_type), 149, 0},
        {offsetof(struct ast_state, Not_type), 149, 0},
        {offsetof(struct ast_state, UAdd_type), 149, 0},
        {offsetof(struct ast_state, USub_type), 149, 0},
        {offsetof(struct ast_state, Eq_type), 149, 0},
        {offsetof(struct ast_state, NotEq_type), 149, 0},
        {offsetof(struct ast_state, Lt_type), 149, 0},
        {offsetof(struct ast_state, LtE_type), 149, 0},
        {offsetof(struct ast_state, Gt_type), 149, 0},
        {offsetof(struct ast_state, GtE_type), 149, 0},
        {offsetof(struct ast_state, Is_type), 149, 0},
        {offsetof(struct ast_state, IsNot_type), 149, 0},
        {offsetof(struct ast_state, In_type), 149, 0},
        {offsetof(struct ast_state, NotIn_type), 149, 0},
        {offsetof(struct ast_state, comprehension_type), 149, 4},
        {offsetof(struct ast_state, ExceptHandler_type), 153, 3},
        {offsetof(struct ast_state, arguments_type), 156, 7},
        {offsetof(struct ast_state, arg_type), 163, 3},
        {offsetof(struct ast_state, keyword_type), 166, 2},
        {offsetof(struct ast_state, alias_type), 168, 2},
        {offsetof(struct ast_state, withitem_type), 170, 2},
        {offsetof(struct ast_state, match_case_type), 172, 3},
        {offsetof(struct ast_state, MatchValue_type), 175, 1},
        {offsetof(struct ast_state, MatchSingleton_type), 176, 1},
        {offsetof(struct ast_state, MatchSequence_type), 177, 1},
        {offsetof(struct ast_state, MatchMapping_type), 178, 3},
        {offsetof(struct ast_state, MatchClass_type), 181, 4},
        {offsetof(struct ast_state, MatchStar_type), 185, 1},
        {offsetof(struct ast_state, MatchAs_type), 186, 2},
        {offsetof(struct ast_state, MatchOr_type), 188, 1},
        {offsetof(struct ast_state, TypeIgnore_type), 189, 2},
        {offsetof(struct ast_state, TypeVar_type), 191, 3},
        {offsetof(struct ast_state, ParamSpec_type), 194, 2},
        {offsetof(struct ast_state, TypeVarTuple_type), 196, 2},
    };
    char *base = (char *)state;
    PyObject *annotations = NULL;
    for (size_t i = 0; i < Py_ARRAY_LENGTH(nodes); i++) {
        annotations = PyDict_New();
        if (annotations == NULL) {
            goto error;
        }
        size_t end = nodes[i].first_field + nodes[i].nfields;
        for (size_t j = nodes[i].first_field; j < end; j++) {
            PyObject *name = *(PyObject **)(base + fields[j].name_offset);
            PyObject *type;
            if (fields[j].flags & FIELD_BUILTIN) {
                type = (PyObject *)builtin_types[fields[j].type_offset];
            }
            else {
                type = *(PyObject **)(base + fields[j].type_offset);
            }
            if (fields[j].flags & FIELD_OPTIONAL) {
                type = _Py_union_type_or(type, Py_None);
            }
            else if (fields[j].flags & FIELD_SEQUENCE) {
                type = Py_GenericAlias((PyObject *)&PyList_Type, type);
            }
            else {
                Py_INCREF(type);
            }
            if (type == NULL) {
                goto error;
            }
            int res = PyDict_SetItem(annotations, name, type);
            Py_DECREF(type);
            if (res < 0) {
                goto error;
            }
        }
        PyObject *node = *(PyObject **)(base + nodes[i].type_offset);
        if (PyObject_SetAttrString(node, "_field_types", annotations) < 0 ||
            PyObject_SetAttrString(node, "__annotations__", annotations) < 0)
        {
            goto error;
        }
        Py_CLEAR(annotations);
    }
    return 1;
error:
    Py_XDECREF(annotations);
    return 0;
}



typedef struct {
    PyObject_HEAD
} AST_object;

static void
ast_dealloc(PyObject *op)
{
    AST_object *self = (AST_object*)op;
    /* bpo-31095: UnTrack is needed before calling any callbacks */
    PyTypeObject *tp = Py_TYPE(self);
    PyObject_GC_UnTrack(self);
    PyObject_ClearManagedDict(op);
    freefunc free_func = PyType_GetSlot(tp, Py_tp_free);
    assert(free_func != NULL);
    free_func(self);
    Py_DECREF(tp);
}

static int
ast_traverse(PyObject *op, visitproc visit, void *arg)
{
    AST_object *self = (AST_object*)op;
    Py_VISIT(Py_TYPE(self));
    return PyObject_VisitManagedDict(op, visit, arg);
}

static int
ast_clear(PyObject *op)
{
    PyObject_ClearManagedDict(op);
    return 0;
}

/*
 * Format the names in the set 'missing' into a natural language list,
 * sorted in the order in which they appear in 'fields'.
 *
 * Similar to format_missing() from 'Python/ceval.c'.
 *
 * Parameters
 *
 *      missing     Set of missing field names to render.
 *      fields      Sequence of AST node field names (self._fields).
 */
static PyObject *
format_missing(PyObject *missing, PyObject *fields)
{
    Py_ssize_t num_fields, num_total, num_left;
    num_fields = PySequence_Size(fields);
    if (num_fields == -1) {
        return NULL;
    }
    num_total = num_left = PySet_GET_SIZE(missing);
    PyUnicodeWriter *writer = PyUnicodeWriter_Create(0);
    if (writer == NULL) {
        goto error;
    }
    // Iterate all AST node fields in order so that the missing positional
    // arguments are rendered in the order in which __init__ expects them.
    for (Py_ssize_t i = 0; i < num_fields; i++) {
        PyObject *name = PySequence_GetItem(fields, i);
        if (name == NULL) {
            goto error;
        }
        int contains = PySet_Contains(missing, name);
        if (contains == -1) {
            Py_DECREF(name);
            goto error;
        }
        else if (contains == 1) {
            const char* fmt = NULL;
            if (num_left == 1) {
                fmt = "'%U'";
            }
            else if (num_total == 2) {
                fmt = "'%U' and ";
            }
            else if (num_left == 2) {
                fmt = "'%U', and ";
            }
            else {
                fmt = "'%U', ";
            }
            num_left--;
            if (PyUnicodeWriter_Format(writer, fmt, name) < 0) {
                Py_DECREF(name);
                goto error;
            }
        }
        Py_DECREF(name);
    }
    return PyUnicodeWriter_Finish(writer);
error:
    PyUnicodeWriter_Discard(writer);
    return NULL;
}

static int
ast_type_init(PyObject *self, PyObject *args, PyObject *kw)
{
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return -1;
    }

    int contains = PySet_Contains(state->abstract_types, (PyObject *)Py_TYPE(self));
    if (contains == -1) {
        return -1;
    }
    else if (contains == 1) {
        if (PyErr_WarnFormat(
                PyExc_DeprecationWarning, 1,
                "Instantiating abstract AST node class %T is deprecated. "
                "This will become an error in Python 3.20", self) < 0) {
            return -1;
        }
    }

    Py_ssize_t i, numfields = 0;
    int res = -1;
    PyObject *key, *value, *fields, *attributes = NULL, *remaining_fields = NULL;

    fields = PyObject_GetAttr((PyObject*)Py_TYPE(self), state->_fields);
    if (fields == NULL) {
        goto cleanup;
    }

    numfields = PySequence_Size(fields);
    if (numfields == -1) {
        goto cleanup;
    }
    remaining_fields = PySet_New(fields);
    if (remaining_fields == NULL) {
        goto cleanup;
    }

    res = 0; /* if no error occurs, this stays 0 to the end */
    if (numfields < PyTuple_GET_SIZE(args)) {
        PyErr_Format(PyExc_TypeError, "%T constructor takes at most "
                     "%zd positional argument%s",
                     self, numfields, numfields == 1 ? "" : "s");
        res = -1;
        goto cleanup;
    }
    for (i = 0; i < PyTuple_GET_SIZE(args); i++) {
        /* cannot be reached when fields is NULL */
        PyObject *name = PySequence_GetItem(fields, i);
        if (!name) {
            res = -1;
            goto cleanup;
        }
        res = PyObject_SetAttr(self, name, PyTuple_GET_ITEM(args, i));
        if (PySet_Discard(remaining_fields, name) < 0) {
            res = -1;
            Py_DECREF(name);
            goto cleanup;
        }
        Py_DECREF(name);
        if (res < 0) {
            goto cleanup;
        }
    }
    if (kw) {
        i = 0;  /* needed by PyDict_Next */
        while (PyDict_Next(kw, &i, &key, &value)) {
            int contains = PySequence_Contains(fields, key);
            if (contains == -1) {
                res = -1;
                goto cleanup;
            }
            else if (contains == 1) {
                int p = PySet_Discard(remaining_fields, key);
                if (p == -1) {
                    res = -1;
                    goto cleanup;
                }
                if (p == 0) {
                    PyErr_Format(PyExc_TypeError,
                        "%T got multiple values for argument %R",
                        self, key);
                    res = -1;
                    goto cleanup;
                }
            }
            else {
                // Lazily initialize "attributes"
                if (attributes == NULL) {
                    attributes = PyObject_GetAttr((PyObject*)Py_TYPE(self), state->_attributes);
                    if (attributes == NULL) {
                        res = -1;
                        goto cleanup;
                    }
                }
                int contains = PySequence_Contains(attributes, key);
                if (contains == -1) {
                    res = -1;
                    goto cleanup;
                }
                else if (contains == 0) {
                    PyErr_Format(PyExc_TypeError,
                        "%T.__init__ got an unexpected keyword argument %R",
                        self, key);
                    res = -1;
                    goto cleanup;
                }
            }
            res = PyObject_SetAttr(self, key, value);
            if (res < 0) {
                goto cleanup;
            }
        }
    }
    Py_ssize_t size = PySet_Size(remaining_fields);
    PyObject *field_types = NULL, *remaining_list = NULL, *missing_names = NULL;
    if (size > 0) {
        if (PyObject_GetOptionalAttr((PyObject*)Py_TYPE(self), &_Py_ID(_field_types),
                                     &field_types) < 0) {
            res = -1;
            goto cleanup;
        }
        if (field_types == NULL) {
            // Probably a user-defined subclass of AST that lacks _field_types.
            // This will continue to work as it did before 3.13; i.e., attributes
            // that are not passed in simply do not exist on the instance.
            goto cleanup;
        }
        remaining_list = PySequence_List(remaining_fields);
        if (!remaining_list) {
            goto set_remaining_cleanup;
        }
        missing_names = PySet_New(NULL);
        if (!missing_names) {
            goto set_remaining_cleanup;
        }
        for (Py_ssize_t i = 0; i < size; i++) {
            PyObject *name = PyList_GET_ITEM(remaining_list, i);
            PyObject *type = PyDict_GetItemWithError(field_types, name);
            if (!type) {
                if (PyErr_Occurred()) {
                    goto set_remaining_cleanup;
                }
                else {
                    PyErr_Format(PyExc_TypeError,
                        "Field %R is missing from %T._field_types",
                        name, self);
                    goto set_remaining_cleanup;
                }
            }
            else if (_PyUnion_Check(type)) {
                // optional field
                // do nothing, we'll have set a None default on the class
            }
            else if (Py_IS_TYPE(type, &Py_GenericAliasType)) {
                // list field
                PyObject *empty = PyList_New(0);
                if (!empty) {
                    goto set_remaining_cleanup;
                }
                res = PyObject_SetAttr(self, name, empty);
                Py_DECREF(empty);
                if (res < 0) {
                    goto set_remaining_cleanup;
                }
            }
            else if (type == state->expr_context_type) {
                // special case for expr_context: default to Load()
                res = PyObject_SetAttr(self, name, state->Load_singleton);
                if (res < 0) {
                    goto set_remaining_cleanup;
                }
            }
            else {
                // simple field (e.g., identifier)
                res = PySet_Add(missing_names, name);
                if (res < 0) {
                    goto set_remaining_cleanup;
                }
            }
        }
        Py_ssize_t num_missing = PySet_GET_SIZE(missing_names);
        if (num_missing > 0) {
            PyObject *name_str = format_missing(missing_names, fields);
            if (!name_str) {
                goto set_remaining_cleanup;
            }
            PyErr_Format(PyExc_TypeError,
                "%T.__init__ missing %d required positional argument%s: %U",
                self, num_missing, num_missing == 1 ? "" : "s", name_str);
            Py_DECREF(name_str);
            goto set_remaining_cleanup;
        }
        Py_DECREF(missing_names);
        Py_DECREF(remaining_list);
        Py_DECREF(field_types);
    }
  cleanup:
    Py_XDECREF(attributes);
    Py_XDECREF(fields);
    Py_XDECREF(remaining_fields);
    return res;
  set_remaining_cleanup:
    Py_XDECREF(missing_names);
    Py_XDECREF(remaining_list);
    Py_XDECREF(field_types);
    res = -1;
    goto cleanup;
}

/* Pickling support */
static PyObject *
ast_type_reduce(PyObject *self, PyObject *unused)
{
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return NULL;
    }

    PyObject *dict = NULL, *fields = NULL, *positional_args = NULL;
    if (PyObject_GetOptionalAttr(self, state->__dict__, &dict) < 0) {
        return NULL;
    }
    PyObject *result = NULL;
    if (dict) {
        // Unpickling (or copying) works as follows:
        // - Construct the object with only positional arguments
        // - Set the fields from the dict
        // We have two constraints:
        // - We must set all the required fields in the initial constructor call,
        //   or the unpickling or deepcopying of the object will trigger DeprecationWarnings.
        // - We must not include child nodes in the positional args, because
        //   that may trigger runaway recursion during copying (gh-120108).
        // To satisfy both constraints, we set all the fields to None in the
        // initial list of positional args, and then set the fields from the dict.
        if (PyObject_GetOptionalAttr((PyObject*)Py_TYPE(self), state->_fields, &fields) < 0) {
            goto cleanup;
        }
        if (fields) {
            Py_ssize_t numfields = PySequence_Size(fields);
            if (numfields == -1) {
                Py_DECREF(dict);
                goto cleanup;
            }
            positional_args = PyList_New(0);
            if (!positional_args) {
                goto cleanup;
            }
            for (Py_ssize_t i = 0; i < numfields; i++) {
                PyObject *name = PySequence_GetItem(fields, i);
                if (!name) {
                    goto cleanup;
                }
                PyObject *value;
                int rc = PyDict_GetItemRef(dict, name, &value);
                Py_DECREF(name);
                if (rc < 0) {
                    goto cleanup;
                }
                if (!value) {
                    break;
                }
                rc = PyList_Append(positional_args, Py_None);
                Py_DECREF(value);
                if (rc < 0) {
                    goto cleanup;
                }
            }
            PyObject *args_tuple = PyList_AsTuple(positional_args);
            if (!args_tuple) {
                goto cleanup;
            }
            result = Py_BuildValue("ONN", Py_TYPE(self), args_tuple, dict);
        }
        else {
            result = Py_BuildValue("O()N", Py_TYPE(self), dict);
        }
    }
    else {
        result = Py_BuildValue("O()", Py_TYPE(self));
    }
cleanup:
    Py_XDECREF(fields);
    Py_XDECREF(positional_args);
    return result;
}

/*
 * Python equivalent:
 *
 *   for key in keys:
 *       if hasattr(self, key):
 *           payload[key] = getattr(self, key)
 *
 * The 'keys' argument is a sequence corresponding to
 * the '_fields' or the '_attributes' of an AST node.
 *
 * This returns -1 if an error occurs and 0 otherwise.
 *
 * Parameters
 *
 *      payload   A dictionary to fill.
 *      keys      A sequence of keys or NULL for an empty sequence.
 *      dict      The AST node instance dictionary (must not be NULL).
 */
static inline int
ast_type_replace_update_payload(PyObject *payload,
                                PyObject *keys,
                                PyObject *dict)
{
    assert(dict != NULL);
    if (keys == NULL) {
        return 0;
    }
    Py_ssize_t n = PySequence_Size(keys);
    if (n == -1) {
        return -1;
    }
    for (Py_ssize_t i = 0; i < n; i++) {
        PyObject *key = PySequence_GetItem(keys, i);
        if (key == NULL) {
            return -1;
        }
        PyObject *value;
        if (PyDict_GetItemRef(dict, key, &value) < 0) {
            Py_DECREF(key);
            return -1;
        }
        if (value == NULL) {
            Py_DECREF(key);
            // If a field or attribute is not present at runtime, it should
            // be explicitly given in 'kwargs'. If not, the constructor will
            // issue a warning (which becomes an error in 3.15).
            continue;
        }
        int rc = PyDict_SetItem(payload, key, value);
        Py_DECREF(key);
        Py_DECREF(value);
        if (rc < 0) {
            return -1;
        }
    }
    return 0;
}

/* copy.replace() support (shallow copy) */
static PyObject *
ast_type_replace(PyObject *self, PyObject *args, PyObject *kwargs)
{
    if (!_PyArg_NoPositional("__replace__", args)) {
        return NULL;
    }

    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return NULL;
    }

    PyObject *result = NULL;
    // known AST class fields and attributes
    PyObject *fields = NULL, *attributes = NULL;
    // current instance dictionary
    PyObject *dict = NULL;
    // constructor positional and keyword arguments
    PyObject *empty_tuple = NULL, *payload = NULL;

    PyObject *type = (PyObject *)Py_TYPE(self);
    if (PyObject_GetOptionalAttr(type, state->_fields, &fields) < 0) {
        goto cleanup;
    }
    if (PyObject_GetOptionalAttr(type, state->_attributes, &attributes) < 0) {
        goto cleanup;
    }
    if (PyObject_GetOptionalAttr(self, state->__dict__, &dict) < 0) {
        goto cleanup;
    }
    empty_tuple = PyTuple_New(0);
    if (empty_tuple == NULL) {
        goto cleanup;
    }
    payload = PyDict_New();
    if (payload == NULL) {
        goto cleanup;
    }
    if (dict) { // in case __dict__ is missing (for some obscure reason)
        // copy the instance's fields (possibly NULL)
        if (ast_type_replace_update_payload(payload, fields, dict) < 0) {
            goto cleanup;
        }
        // copy the instance's attributes (possibly NULL)
        if (ast_type_replace_update_payload(payload, attributes, dict) < 0) {
            goto cleanup;
        }
    }
    if (kwargs && PyDict_Update(payload, kwargs) < 0) {
        goto cleanup;
    }
    result = PyObject_Call(type, empty_tuple, payload);
cleanup:
    Py_XDECREF(payload);
    Py_XDECREF(empty_tuple);
    Py_XDECREF(dict);
    Py_XDECREF(attributes);
    Py_XDECREF(fields);
    return result;
}

static PyMethodDef ast_type_methods[] = {
    {"__reduce__", ast_type_reduce, METH_NOARGS, NULL},
    {"__replace__", _PyCFunction_CAST(ast_type_replace), METH_VARARGS | METH_KEYWORDS,
     PyDoc_STR("__replace__($self, /, **fields)\n--\n\n"
               "Return a copy of the AST node with new values "
               "for the specified fields.")},
    {NULL}
};

static PyGetSetDef ast_type_getsets[] = {
    {"__dict__", PyObject_GenericGetDict, PyObject_GenericSetDict},
    {NULL}
};

static PyObject *
ast_repr_max_depth(AST_object *self, int depth);

/* Format list and tuple properties of AST nodes.
   Note that, only the first and last elements are shown.
   Anything in between is represented with an ellipsis ('...').
   For example, the list [1, 2, 3] is formatted as
   'List(elts=[Constant(1), ..., Constant(3)])'. */
static PyObject *
ast_repr_list(PyObject *list, int depth)
{
    assert(PyList_Check(list) || PyTuple_Check(list));

    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return NULL;
    }

    Py_ssize_t length = PySequence_Size(list);
    if (length < 0) {
        return NULL;
    }
    else if (length == 0) {
        return PyObject_Repr(list);
    }

    PyObject *items[2] = {NULL, NULL};
    PyUnicodeWriter *writer = PyUnicodeWriter_Create(0);
    if (writer == NULL) {
        goto error;
    }

    items[0] = PySequence_GetItem(list, 0);
    if (!items[0]) {
        goto error;
    }
    if (length > 1) {
        items[1] = PySequence_GetItem(list, length - 1);
        if (!items[1]) {
            goto error;
        }
    }

    bool is_list = PyList_Check(list);
    if (PyUnicodeWriter_WriteChar(writer, is_list ? '[' : '(') < 0) {
        goto error;
    }

    for (Py_ssize_t i = 0; i < Py_MIN(length, 2); i++) {
        if (i > 0) {
            if (PyUnicodeWriter_WriteASCII(writer, ", ", 2) < 0) {
                goto error;
            }
        }

        PyObject *item = items[i];
        if (PyType_IsSubtype(Py_TYPE(item), (PyTypeObject *)state->AST_type)) {
            PyObject *item_repr;
            item_repr = ast_repr_max_depth((AST_object*)item, depth - 1);
            if (!item_repr) {
                goto error;
            }
            if (PyUnicodeWriter_WriteStr(writer, item_repr) < 0) {
                Py_DECREF(item_repr);
                goto error;
            }
            Py_DECREF(item_repr);
        } else {
            if (PyUnicodeWriter_WriteRepr(writer, item) < 0) {
                goto error;
            }
        }

        if (i == 0 && length > 2) {
            if (PyUnicodeWriter_WriteASCII(writer, ", ...", 5) < 0) {
                goto error;
            }
        }
    }

    if (PyUnicodeWriter_WriteChar(writer, is_list ? ']' : ')') < 0) {
        goto error;
    }

    Py_XDECREF(items[0]);
    Py_XDECREF(items[1]);
    return PyUnicodeWriter_Finish(writer);

error:
    Py_XDECREF(items[0]);
    Py_XDECREF(items[1]);
    PyUnicodeWriter_Discard(writer);
    return NULL;
}

static PyObject *
ast_repr_max_depth(AST_object *self, int depth)
{
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return NULL;
    }

    PyObject *fields = PyObject_GetAttr((PyObject *)Py_TYPE(self), state->_fields);
    if (!fields) {
        return NULL;
    }

    Py_ssize_t numfields = PySequence_Size(fields);
    if (numfields < 0) {
        Py_DECREF(fields);
        return NULL;
    }

    if (numfields == 0) {
        Py_DECREF(fields);
        return PyUnicode_FromFormat("%s()", Py_TYPE(self)->tp_name);
    }

    if (depth <= 0) {
        Py_DECREF(fields);
        return PyUnicode_FromFormat("%s(...)", Py_TYPE(self)->tp_name);
    }

    int status = Py_ReprEnter((PyObject *)self);
    if (status != 0) {
        Py_DECREF(fields);
        if (status < 0) {
            return NULL;
        }
        return PyUnicode_FromFormat("%s(...)", Py_TYPE(self)->tp_name);
    }

    const char* tp_name = Py_TYPE(self)->tp_name;
    PyUnicodeWriter *writer = PyUnicodeWriter_Create(0);
    if (writer == NULL) {
        goto error;
    }

    if (PyUnicodeWriter_WriteUTF8(writer, tp_name, -1) < 0) {
        goto error;
    }
    if (PyUnicodeWriter_WriteChar(writer, '(') < 0) {
        goto error;
    }

    for (Py_ssize_t i = 0; i < numfields; i++) {
        PyObject *name = PySequence_GetItem(fields, i);
        if (!name) {
            goto error;
        }

        PyObject *value = PyObject_GetAttr((PyObject *)self, name);
        if (!value) {
            Py_DECREF(name);
            goto error;
        }

        PyObject *value_repr;
        if (PyList_Check(value) || PyTuple_Check(value)) {
            value_repr = ast_repr_list(value, depth);
        }
        else if (PyType_IsSubtype(Py_TYPE(value), (PyTypeObject *)state->AST_type)) {
            value_repr = ast_repr_max_depth((AST_object*)value, depth - 1);
        }
        else {
            value_repr = PyObject_Repr(value);
        }

        Py_DECREF(value);

        if (!value_repr) {
            Py_DECREF(name);
            goto error;
        }

        if (i > 0) {
            if (PyUnicodeWriter_WriteASCII(writer, ", ", 2) < 0) {
                Py_DECREF(name);
                Py_DECREF(value_repr);
                goto error;
            }
        }
        if (PyUnicodeWriter_WriteStr(writer, name) < 0) {
            Py_DECREF(name);
            Py_DECREF(value_repr);
            goto error;
        }

        Py_DECREF(name);

        if (PyUnicodeWriter_WriteChar(writer, '=') < 0) {
            Py_DECREF(value_repr);
            goto error;
        }
        if (PyUnicodeWriter_WriteStr(writer, value_repr) < 0) {
            Py_DECREF(value_repr);
            goto error;
        }

        Py_DECREF(value_repr);
    }

    if (PyUnicodeWriter_WriteChar(writer, ')') < 0) {
        goto error;
    }
    Py_ReprLeave((PyObject *)self);
    Py_DECREF(fields);
    return PyUnicodeWriter_Finish(writer);

error:
    Py_ReprLeave((PyObject *)self);
    Py_DECREF(fields);
    PyUnicodeWriter_Discard(writer);
    return NULL;
}

static PyObject *
ast_repr(PyObject *self)
{
    return ast_repr_max_depth((AST_object*)self, 3);
}

static PyType_Slot AST_type_slots[] = {
    {Py_tp_dealloc, ast_dealloc},
    {Py_tp_repr, ast_repr},
    {Py_tp_getattro, PyObject_GenericGetAttr},
    {Py_tp_setattro, PyObject_GenericSetAttr},
    {Py_tp_traverse, ast_traverse},
    {Py_tp_clear, ast_clear},
    {Py_tp_methods, ast_type_methods},
    {Py_tp_getset, ast_type_getsets},
    {Py_tp_init, ast_type_init},
    {Py_tp_alloc, PyType_GenericAlloc},
    {Py_tp_new, PyType_GenericNew},
    {Py_tp_free, PyObject_GC_Del},
    {0, 0},
};

static PyType_Spec AST_type_spec = {
    "ast.AST",
    sizeof(AST_object),
    0,
    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC |
    Py_TPFLAGS_MANAGED_DICT,
    AST_type_slots
};

static PyObject *
make_type(struct ast_state *state, const char *type, PyObject* base,
          const char* const* fields, int num_fields, const char *doc)
{
    PyObject *fnames, *result;
    int i;
    fnames = PyTuple_New(num_fields);
    if (!fnames) return NULL;
    for (i = 0; i < num_fields; i++) {
        PyObject *field = PyUnicode_InternFromString(fields[i]);
        if (!field) {
            Py_DECREF(fnames);
            return NULL;
        }
        PyTuple_SET_ITEM(fnames, i, field);
    }
    result = PyObject_CallFunction((PyObject*)&PyType_Type, "s(O){OOOOOOOs}",
                    type, base,
                    state->_fields, fnames,
                    state->__match_args__, fnames,
                    state->__module__,
                    state->ast,
                    state->__doc__, doc);
    Py_DECREF(fnames);
    return result;
}

static int
add_attributes(struct ast_state *state, PyObject *type, const char * const *attrs, int num_fields)
{
    int i, result;
    PyObject *s, *l = PyTuple_New(num_fields);
    if (!l)
        return -1;
    for (i = 0; i < num_fields; i++) {
        s = PyUnicode_InternFromString(attrs[i]);
        if (!s) {
            Py_DECREF(l);
            return -1;
        }
        PyTuple_SET_ITEM(l, i, s);
    }
    result = PyObject_SetAttr(type, state->_attributes, l);
    Py_DECREF(l);
    return result;
}

/* Conversion AST -> Python */

static PyObject* ast2obj_list(struct ast_state *state, asdl_seq *seq,
                              PyObject* (*func)(struct ast_state *state, void*))
{
    Py_ssize_t i, n = asdl_seq_LEN(seq);
    PyObject *result = PyList_New(n);
    PyObject *value;
    if (!result)
        return NULL;
    for (i = 0; i < n; i++) {
        value = func(state, asdl_seq_GET_UNTYPED(seq, i));
        if (!value) {
            Py_DECREF(result);
            return NULL;
        }
        PyList_SET_ITEM(result, i, value);
    }
    return result;
}

static PyObject* ast2obj_object(struct ast_state *Py_UNUSED(state), void *o)
{
    PyObject *op = (PyObject*)o;
    if (!op) {
        op = Py_None;
    }
    return Py_NewRef(op);
}
#define ast2obj_constant ast2obj_object
#define ast2obj_identifier ast2obj_object
#define ast2obj_string ast2obj_object

static PyObject* ast2obj_int(struct ast_state *Py_UNUSED(state), long b)
{
    return PyLong_FromLong(b);
}

/* Conversion Python -> AST */

static int obj2ast_object(struct ast_state *Py_UNUSED(state), PyObject* obj,
                          PyObject** out,
                          const char* Py_UNUSED(field), PyArena* arena)
{
    if (obj == Py_None)
        obj = NULL;
    if (obj) {
        if (_PyArena_AddPyObject(arena, obj) < 0) {
            *out = NULL;
            return -1;
        }
        *out = Py_NewRef(obj);
    }
    else {
        *out = NULL;
    }
    return 0;
}

static int obj2ast_constant(struct ast_state *Py_UNUSED(state), PyObject* obj,
                            PyObject** out,
                            const char* Py_UNUSED(field), PyArena* arena)
{
    if (_PyArena_AddPyObject(arena, obj) < 0) {
        *out = NULL;
        return -1;
    }
    *out = Py_NewRef(obj);
    return 0;
}

static int obj2ast_identifier(struct ast_state *state, PyObject* obj, PyObject** out, const char* field, PyArena* arena)
{
    if (!PyUnicode_CheckExact(obj) && obj != Py_None) {
        PyErr_Format(PyExc_TypeError, "field '%s' was expecting a string object, got %T", field, obj);
        return -1;
    }
    return obj2ast_object(state, obj, out, field, arena);
}

static int obj2ast_string(struct ast_state *state, PyObject* obj, PyObject** out, const char* field, PyArena* arena)
{
    if (!PyUnicode_CheckExact(obj) && !PyBytes_CheckExact(obj)) {
        PyErr_Format(PyExc_TypeError, "field '%s' was expecting a string or bytes object, got %T", field, obj);
        return -1;
    }
    return obj2ast_object(state, obj, out, field, arena);
}

static int obj2ast_int(struct ast_state* Py_UNUSED(state), PyObject* obj, int* out, const char* field, PyArena* arena)
{
    int i;
    if (!PyLong_Check(obj)) {
        PyErr_Format(PyExc_ValueError, "field \"%s\" got an invalid integer value: %R", field, obj);
        return -1;
    }

    i = PyLong_AsInt(obj);
    if (i == -1 && PyErr_Occurred())
        return -1;
    *out = i;
    return 0;
}

static int add_ast_fields(struct ast_state *state)
{
    PyObject *empty_tuple;
    empty_tuple = PyTuple_New(0);
    if (!empty_tuple ||
        PyObject_SetAttrString(state->AST_type, "_fields", empty_tuple) < 0 ||
        PyObject_SetAttrString(state->AST_type, "__match_args__", empty_tuple) < 0 ||
        PyObject_SetAttrString(state->AST_type, "_attributes", empty_tuple) < 0) {
        Py_XDECREF(empty_tuple);
        return -1;
    }
    Py_DECREF(empty_tuple);
    return 0;
}



static int
init_types(void *arg)
{
    struct ast_state *state = arg;
    if (init_identifiers(state) < 0) {
        return -1;
    }
    state->AST_type = PyType_FromSpec(&AST_type_spec);
    if (!state->AST_type) {
        return -1;
    }
    state->abstract_types = PySet_New(NULL);
    if (!state->abstract_types) {
        return -1;
    }
    if (PySet_Add(state->abstract_types, state->AST_type) < 0) {
        return -1;
    }
    if (add_ast_fields(state) < 0) {
        return -1;
    }
    state->mod_type = make_type(state, "mod", state->AST_type, NULL, 0,
        "mod = Module(stmt* body, type_ignore* type_ignores)\n"
        "    | Interactive(stmt* body)\n"
        "    | Expression(expr body)\n"
        "    | FunctionType(expr* argtypes, expr returns)");
    if (!state->mod_type) return -1;
    if (add_attributes(state, state->mod_type, NULL, 0) < 0) return -1;
    if (PySet_Add(state->abstract_types, state->mod_type) < 0) return -1;
    state->Module_type = make_type(state, "Module", state->mod_type,
                                   Module_fields, 2,
        "Module(stmt* body, type_ignore* type_ignores)");
    if (!state->Module_type) return -1;
    state->Interactive_type = make_type(state, "Interactive", state->mod_type,
                                        Interactive_fields, 1,
        "Interactive(stmt* body)");
    if (!state->Interactive_type) return -1;
    state->Expression_type = make_type(state, "Expression", state->mod_type,
                                       Expression_fields, 1,
        "Expression(expr body)");
    if (!state->Expression_type) return -1;
    state->FunctionType_type = make_type(state, "FunctionType",
                                         state->mod_type, FunctionType_fields,
                                         2,
        "FunctionType(expr* argtypes, expr returns)");
    if (!state->FunctionType_type) return -1;
    state->stmt_type = make_type(state, "stmt", state->AST_type, NULL, 0,
        "stmt = FunctionDef(identifier name, arguments args, stmt* body, expr* decorator_list, expr? returns, string? type_comment, type_param* type_params)\n"
        "     | AsyncFunctionDef(identifier name, arguments args, stmt* body, expr* decorator_list, expr? returns, string? type_comment, type_param* type_params)\n"
        "     | ClassDef(identifier name, expr* bases, keyword* keywords, stmt* body, expr* decorator_list, type_param* type_params)\n"
        "     | Return(expr? value)\n"
        "     | Delete(expr* targets)\n"
        "     | Assign(expr* targets, expr value, string? type_comment)\n"
        "     | TypeAlias(expr name, type_param* type_params, expr value)\n"
        "     | AugAssign(expr target, operator op, expr value)\n"
        "     | AnnAssign(expr target, expr annotation, expr? value, int simple)\n"
        "     | For(expr target, expr iter, stmt* body, stmt* orelse, string? type_comment)\n"
        "     | AsyncFor(expr target, expr iter, stmt* body, stmt* orelse, string? type_comment)\n"
        "     | While(expr test, stmt* body, stmt* orelse)\n"
        "     | If(expr test, stmt* body, stmt* orelse)\n"
        "     | With(withitem* items, stmt* body, string? type_comment)\n"
        "     | AsyncWith(withitem* items, stmt* body, string? type_comment)\n"
        "     | Match(expr subject, match_case* cases)\n"
        "     | Raise(expr? exc, expr? cause)\n"
        "     | Try(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)\n"
        "     | TryStar(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)\n"
        "     | Assert(expr test, expr? msg)\n"
        "     | Import(alias* names, int? is_lazy)\n"
        "     | ImportFrom(identifier? module, alias* names, int? level, int? is_lazy)\n"
        "     | Global(identifier* names)\n"
        "     | Nonlocal(identifier* names)\n"
        "     | Expr(expr value)\n"
        "     | Pass\n"
        "     | Break\n"
        "     | Continue");
    if (!state->stmt_type) return -1;
    if (add_attributes(state, state->stmt_type, stmt_attributes, 4) < 0) return
        -1;
    if (PySet_Add(state->abstract_types, state->stmt_type) < 0) return -1;
    if (PyObject_SetAttr(state->stmt_type, state->end_lineno, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->stmt_type, state->end_col_offset, Py_None) ==
        -1)
        return -1;
    state->FunctionDef_type = make_type(state, "FunctionDef", state->stmt_type,
                                        FunctionDef_fields, 7,
        "FunctionDef(identifier name, arguments args, stmt* body, expr* decorator_list, expr? returns, string? type_comment, type_param* type_params)");
    if (!state->FunctionDef_type) return -1;
    if (PyObject_SetAttr(state->FunctionDef_type, state->returns, Py_None) ==
        -1)
        return -1;
    if (PyObject_SetAttr(state->FunctionDef_type, state->type_comment, Py_None)
        == -1)
        return -1;
    state->AsyncFunctionDef_type = make_type(state, "AsyncFunctionDef",
                                             state->stmt_type,
                                             AsyncFunctionDef_fields, 7,
        "AsyncFunctionDef(identifier name, arguments args, stmt* body, expr* decorator_list, expr? returns, string? type_comment, type_param* type_params)");
    if (!state->AsyncFunctionDef_type) return -1;
    if (PyObject_SetAttr(state->AsyncFunctionDef_type, state->returns, Py_None)
        == -1)
        return -1;
    if (PyObject_SetAttr(state->AsyncFunctionDef_type, state->type_comment,
        Py_None) == -1)
        return -1;
    state->ClassDef_type = make_type(state, "ClassDef", state->stmt_type,
                                     ClassDef_fields, 6,
        "ClassDef(identifier name, expr* bases, keyword* keywords, stmt* body, expr* decorator_list, type_param* type_params)");
    if (!state->ClassDef_type) return -1;
    state->Return_type = make_type(state, "Return", state->stmt_type,
                                   Return_fields, 1,
        "Return(expr? value)");
    if (!state->Return_type) return -1;
    if (PyObject_SetAttr(state->Return_type, state->value, Py_None) == -1)
        return -1;
    state->Delete_type = make_type(state, "Delete", state->stmt_type,
                                   Delete_fields, 1,
        "Delete(expr* targets)");
    if (!state->Delete_type) return -1;
    state->Assign_type = make_type(state, "Assign", state->stmt_type,
                                   Assign_fields, 3,
        "Assign(expr* targets, expr value, string? type_comment)");
    if (!state->Assign_type) return -1;
    if (PyObject_SetAttr(state->Assign_type, state->type_comment, Py_None) ==
        -1)
        return -1;
    state->TypeAlias_type = make_type(state, "TypeAlias", state->stmt_type,
                                      TypeAlias_fields, 3,
        "TypeAlias(expr name, type_param* type_params, expr value)");
    if (!state->TypeAlias_type) return -1;
    state->AugAssign_type = make_type(state, "AugAssign", state->stmt_type,
                                      AugAssign_fields, 3,
        "AugAssign(expr target, operator op, expr value)");
    if (!state->AugAssign_type) return -1;
    state->AnnAssign_type = make_type(state, "AnnAssign", state->stmt_type,
                                      AnnAssign_fields, 4,
        "AnnAssign(expr target, expr annotation, expr? value, int simple)");
    if (!state->AnnAssign_type) return -1;
    if (PyObject_SetAttr(state->AnnAssign_type, state->value, Py_None) == -1)
        return -1;
    state->For_type = make_type(state, "For", state->stmt_type, For_fields, 5,
        "For(expr target, expr iter, stmt* body, stmt* orelse, string? type_comment)");
    if (!state->For_type) return -1;
    if (PyObject_SetAttr(state->For_type, state->type_comment, Py_None) == -1)
        return -1;
    state->AsyncFor_type = make_type(state, "AsyncFor", state->stmt_type,
                                     AsyncFor_fields, 5,
        "AsyncFor(expr target, expr iter, stmt* body, stmt* orelse, string? type_comment)");
    if (!state->AsyncFor_type) return -1;
    if (PyObject_SetAttr(state->AsyncFor_type, state->type_comment, Py_None) ==
        -1)
        return -1;
    state->While_type = make_type(state, "While", state->stmt_type,
                                  While_fields, 3,
        "While(expr test, stmt* body, stmt* orelse)");
    if (!state->While_type) return -1;
    state->If_type = make_type(state, "If", state->stmt_type, If_fields, 3,
        "If(expr test, stmt* body, stmt* orelse)");
    if (!state->If_type) return -1;
    state->With_type = make_type(state, "With", state->stmt_type, With_fields,
                                 3,
        "With(withitem* items, stmt* body, string? type_comment)");
    if (!state->With_type) return -1;
    if (PyObject_SetAttr(state->With_type, state->type_comment, Py_None) == -1)
        return -1;
    state->AsyncWith_type = make_type(state, "AsyncWith", state->stmt_type,
                                      AsyncWith_fields, 3,
        "AsyncWith(withitem* items, stmt* body, string? type_comment)");
    if (!state->AsyncWith_type) return -1;
    if (PyObject_SetAttr(state->AsyncWith_type, state->type_comment, Py_None)
        == -1)
        return -1;
    state->Match_type = make_type(state, "Match", state->stmt_type,
                                  Match_fields, 2,
        "Match(expr subject, match_case* cases)");
    if (!state->Match_type) return -1;
    state->Raise_type = make_type(state, "Raise", state->stmt_type,
                                  Raise_fields, 2,
        "Raise(expr? exc, expr? cause)");
    if (!state->Raise_type) return -1;
    if (PyObject_SetAttr(state->Raise_type, state->exc, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->Raise_type, state->cause, Py_None) == -1)
        return -1;
    state->Try_type = make_type(state, "Try", state->stmt_type, Try_fields, 4,
        "Try(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)");
    if (!state->Try_type) return -1;
    state->TryStar_type = make_type(state, "TryStar", state->stmt_type,
                                    TryStar_fields, 4,
        "TryStar(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)");
    if (!state->TryStar_type) return -1;
    state->Assert_type = make_type(state, "Assert", state->stmt_type,
                                   Assert_fields, 2,
        "Assert(expr test, expr? msg)");
    if (!state->Assert_type) return -1;
    if (PyObject_SetAttr(state->Assert_type, state->msg, Py_None) == -1)
        return -1;
    state->Import_type = make_type(state, "Import", state->stmt_type,
                                   Import_fields, 2,
        "Import(alias* names, int? is_lazy)");
    if (!state->Import_type) return -1;
    if (PyObject_SetAttr(state->Import_type, state->is_lazy, Py_None) == -1)
        return -1;
    state->ImportFrom_type = make_type(state, "ImportFrom", state->stmt_type,
                                       ImportFrom_fields, 4,
        "ImportFrom(identifier? module, alias* names, int? level, int? is_lazy)");
    if (!state->ImportFrom_type) return -1;
    if (PyObject_SetAttr(state->ImportFrom_type, state->module, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->ImportFrom_type, state->level, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->ImportFrom_type, state->is_lazy, Py_None) == -1)
        return -1;
    state->Global_type = make_type(state, "Global", state->stmt_type,
                                   Global_fields, 1,
        "Global(identifier* names)");
    if (!state->Global_type) return -1;
    state->Nonlocal_type = make_type(state, "Nonlocal", state->stmt_type,
                                     Nonlocal_fields, 1,
        "Nonlocal(identifier* names)");
    if (!state->Nonlocal_type) return -1;
    state->Expr_type = make_type(state, "Expr", state->stmt_type, Expr_fields,
                                 1,
        "Expr(expr value)");
    if (!state->Expr_type) return -1;
    state->Pass_type = make_type(state, "Pass", state->stmt_type, NULL, 0,
        "Pass");
    if (!state->Pass_type) return -1;
    state->Break_type = make_type(state, "Break", state->stmt_type, NULL, 0,
        "Break");
    if (!state->Break_type) return -1;
    state->Continue_type = make_type(state, "Continue", state->stmt_type, NULL,
                                     0,
        "Continue");
    if (!state->Continue_type) return -1;
    state->expr_type = make_type(state, "expr", state->AST_type, NULL, 0,
        "expr = BoolOp(boolop op, expr* values)\n"
        "     | NamedExpr(expr target, expr value)\n"
        "     | BinOp(expr left, operator op, expr right)\n"
        "     | UnaryOp(unaryop op, expr operand)\n"
        "     | Lambda(arguments args, expr body)\n"
        "     | IfExp(expr test, expr body, expr orelse)\n"
        "     | Dict(expr?* keys, expr* values)\n"
        "     | Set(expr* elts)\n"
        "     | ListComp(expr elt, comprehension* generators)\n"
        "     | SetComp(expr elt, comprehension* generators)\n"
        "     | DictComp(expr key, expr? value, comprehension* generators)\n"
        "     | GeneratorExp(expr elt, comprehension* generators)\n"
        "     | Await(expr value)\n"
        "     | Yield(expr? value)\n"
        "     | YieldFrom(expr value)\n"
        "     | Compare(expr left, cmpop* ops, expr* comparators)\n"
        "     | Call(expr func, expr* args, keyword* keywords)\n"
        "     | FormattedValue(expr value, int conversion, expr? format_spec)\n"
        "     | Interpolation(expr value, constant str, int conversion, expr? format_spec)\n"
        "     | JoinedStr(expr* values)\n"
        "     | TemplateStr(expr* values)\n"
        "     | Constant(constant value, string? kind)\n"
        "     | Attribute(expr value, identifier attr, expr_context ctx)\n"
        "     | Subscript(expr value, expr slice, expr_context ctx)\n"
        "     | Starred(expr value, expr_context ctx)\n"
        "     | Name(identifier id, expr_context ctx)\n"
        "     | List(expr* elts, expr_context ctx)\n"
        "     | Tuple(expr* elts, expr_context ctx)\n"
        "     | Slice(expr? lower, expr? upper, expr? step)");
    if (!state->expr_type) return -1;
    if (add_attributes(state, state->expr_type, expr_attributes, 4) < 0) return
        -1;
    if (PySet_Add(state->abstract_types, state->expr_type) < 0) return -1;
    if (PyObject_SetAttr(state->expr_type, state->end_lineno, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->expr_type, state->end_col_offset, Py_None) ==
        -1)
        return -1;
    state->BoolOp_type = make_type(state, "BoolOp", state->expr_type,
                                   BoolOp_fields, 2,
        "BoolOp(boolop op, expr* values)");
    if (!state->BoolOp_type) return -1;
    state->NamedExpr_type = make_type(state, "NamedExpr", state->expr_type,
                                      NamedExpr_fields, 2,
        "NamedExpr(expr target, expr value)");
    if (!state->NamedExpr_type) return -1;
    state->BinOp_type = make_type(state, "BinOp", state->expr_type,
                                  BinOp_fields, 3,
        "BinOp(expr left, operator op, expr right)");
    if (!state->BinOp_type) return -1;
    state->UnaryOp_type = make_type(state, "UnaryOp", state->expr_type,
                                    UnaryOp_fields, 2,
        "UnaryOp(unaryop op, expr operand)");
    if (!state->UnaryOp_type) return -1;
    state->Lambda_type = make_type(state, "Lambda", state->expr_type,
                                   Lambda_fields, 2,
        "Lambda(arguments args, expr body)");
    if (!state->Lambda_type) return -1;
    state->IfExp_type = make_type(state, "IfExp", state->expr_type,
                                  IfExp_fields, 3,
        "IfExp(expr test, expr body, expr orelse)");
    if (!state->IfExp_type) return -1;
    state->Dict_type = make_type(state, "Dict", state->expr_type, Dict_fields,
                                 2,
        "Dict(expr?* keys, expr* values)");
    if (!state->Dict_type) return -1;
    state->Set_type = make_type(state, "Set", state->expr_type, Set_fields, 1,
        "Set(expr* elts)");
    if (!state->Set_type) return -1;
    state->ListComp_type = make_type(state, "ListComp", state->expr_type,
                                     ListComp_fields, 2,
        "ListComp(expr elt, comprehension* generators)");
    if (!state->ListComp_type) return -1;
    state->SetComp_type = make_type(state, "SetComp", state->expr_type,
                                    SetComp_fields, 2,
        "SetComp(expr elt, comprehension* generators)");
    if (!state->SetComp_type) return -1;
    state->DictComp_type = make_type(state, "DictComp", state->expr_type,
                                     DictComp_fields, 3,
        "DictComp(expr key, expr? value, comprehension* generators)");
    if (!state->DictComp_type) return -1;
    if (PyObject_SetAttr(state->DictComp_type, state->value, Py_None) == -1)
        return -1;
    state->GeneratorExp_type = make_type(state, "GeneratorExp",
                                         state->expr_type, GeneratorExp_fields,
                                         2,
        "GeneratorExp(expr elt, comprehension* generators)");
    if (!state->GeneratorExp_type) return -1;
    state->Await_type = make_type(state, "Await", state->expr_type,
                                  Await_fields, 1,
        "Await(expr value)");
    if (!state->Await_type) return -1;
    state->Yield_type = make_type(state, "Yield", state->expr_type,
                                  Yield_fields, 1,
        "Yield(expr? value)");
    if (!state->Yield_type) return -1;
    if (PyObject_SetAttr(state->Yield_type, state->value, Py_None) == -1)
        return -1;
    state->YieldFrom_type = make_type(state, "YieldFrom", state->expr_type,
                                      YieldFrom_fields, 1,
        "YieldFrom(expr value)");
    if (!state->YieldFrom_type) return -1;
    state->Compare_type = make_type(state, "Compare", state->expr_type,
                                    Compare_fields, 3,
        "Compare(expr left, cmpop* ops, expr* comparators)");
    if (!state->Compare_type) return -1;
    state->Call_type = make_type(state, "Call", state->expr_type, Call_fields,
                                 3,
        "Call(expr func, expr* args, keyword* keywords)");
    if (!state->Call_type) return -1;
    state->FormattedValue_type = make_type(state, "FormattedValue",
                                           state->expr_type,
                                           FormattedValue_fields, 3,
        "FormattedValue(expr value, int conversion, expr? format_spec)");
    if (!state->FormattedValue_type) return -1;
    if (PyObject_SetAttr(state->FormattedValue_type, state->format_spec,
        Py_None) == -1)
        return -1;
    state->Interpolation_type = make_type(state, "Interpolation",
                                          state->expr_type,
                                          Interpolation_fields, 4,
        "Interpolation(expr value, constant str, int conversion, expr? format_spec)");
    if (!state->Interpolation_type) return -1;
    if (PyObject_SetAttr(state->Interpolation_type, state->format_spec,
        Py_None) == -1)
        return -1;
    state->JoinedStr_type = make_type(state, "JoinedStr", state->expr_type,
                                      JoinedStr_fields, 1,
        "JoinedStr(expr* values)");
    if (!state->JoinedStr_type) return -1;
    state->TemplateStr_type = make_type(state, "TemplateStr", state->expr_type,
                                        TemplateStr_fields, 1,
        "TemplateStr(expr* values)");
    if (!state->TemplateStr_type) return -1;
    state->Constant_type = make_type(state, "Constant", state->expr_type,
                                     Constant_fields, 2,
        "Constant(constant value, string? kind)");
    if (!state->Constant_type) return -1;
    if (PyObject_SetAttr(state->Constant_type, state->kind, Py_None) == -1)
        return -1;
    state->Attribute_type = make_type(state, "Attribute", state->expr_type,
                                      Attribute_fields, 3,
        "Attribute(expr value, identifier attr, expr_context ctx)");
    if (!state->Attribute_type) return -1;
    state->Subscript_type = make_type(state, "Subscript", state->expr_type,
                                      Subscript_fields, 3,
        "Subscript(expr value, expr slice, expr_context ctx)");
    if (!state->Subscript_type) return -1;
    state->Starred_type = make_type(state, "Starred", state->expr_type,
                                    Starred_fields, 2,
        "Starred(expr value, expr_context ctx)");
    if (!state->Starred_type) return -1;
    state->Name_type = make_type(state, "Name", state->expr_type, Name_fields,
                                 2,
        "Name(identifier id, expr_context ctx)");
    if (!state->Name_type) return -1;
    state->List_type = make_type(state, "List", state->expr_type, List_fields,
                                 2,
        "List(expr* elts, expr_context ctx)");
    if (!state->List_type) return -1;
    state->Tuple_type = make_type(state, "Tuple", state->expr_type,
                                  Tuple_fields, 2,
        "Tuple(expr* elts, expr_context ctx)");
    if (!state->Tuple_type) return -1;
    state->Slice_type = make_type(state, "Slice", state->expr_type,
                                  Slice_fields, 3,
        "Slice(expr? lower, expr? upper, expr? step)");
    if (!state->Slice_type) return -1;
    if (PyObject_SetAttr(state->Slice_type, state->lower, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->Slice_type, state->upper, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->Slice_type, state->step, Py_None) == -1)
        return -1;
    state->expr_context_type = make_type(state, "expr_context",
                                         state->AST_type, NULL, 0,
        "expr_context = Load | Store | Del");
    if (!state->expr_context_type) return -1;
    if (add_attributes(state, state->expr_context_type, NULL, 0) < 0) return -1;
    if (PySet_Add(state->abstract_types, state->expr_context_type) < 0) return
        -1;
    state->Load_type = make_type(state, "Load", state->expr_context_type, NULL,
                                 0,
        "Load");
    if (!state->Load_type) return -1;
    state->Load_singleton = PyType_GenericNew((PyTypeObject *)state->Load_type,
                                              NULL, NULL);
    if (!state->Load_singleton) return -1;
    state->Store_type = make_type(state, "Store", state->expr_context_type,
                                  NULL, 0,
        "Store");
    if (!state->Store_type) return -1;
    state->Store_singleton = PyType_GenericNew((PyTypeObject
                                               *)state->Store_type, NULL, NULL);
    if (!state->Store_singleton) return -1;
    state->Del_type = make_type(state, "Del", state->expr_context_type, NULL, 0,
        "Del");
    if (!state->Del_type) return -1;
    state->Del_singleton = PyType_GenericNew((PyTypeObject *)state->Del_type,
                                             NULL, NULL);
    if (!state->Del_singleton) return -1;
    state->boolop_type = make_type(state, "boolop", state->AST_type, NULL, 0,
        "boolop = And | Or");
    if (!state->boolop_type) return -1;
    if (add_attributes(state, state->boolop_type, NULL, 0) < 0) return -1;
    if (PySet_Add(state->abstract_types, state->boolop_type) < 0) return -1;
    state->And_type = make_type(state, "And", state->boolop_type, NULL, 0,
        "And");
    if (!state->And_type) return -1;
    state->And_singleton = PyType_GenericNew((PyTypeObject *)state->And_type,
                                             NULL, NULL);
    if (!state->And_singleton) return -1;
    state->Or_type = make_type(state, "Or", state->boolop_type, NULL, 0,
        "Or");
    if (!state->Or_type) return -1;
    state->Or_singleton = PyType_GenericNew((PyTypeObject *)state->Or_type,
                                            NULL, NULL);
    if (!state->Or_singleton) return -1;
    state->operator_type = make_type(state, "operator", state->AST_type, NULL,
                                     0,
        "operator = Add | Sub | Mult | MatMult | Div | Mod | Pow | LShift | RShift | BitOr | BitXor | BitAnd | FloorDiv");
    if (!state->operator_type) return -1;
    if (add_attributes(state, state->operator_type, NULL, 0) < 0) return -1;
    if (PySet_Add(state->abstract_types, state->operator_type) < 0) return -1;
    state->Add_type = make_type(state, "Add", state->operator_type, NULL, 0,
        "Add");
    if (!state->Add_type) return -1;
    state->Add_singleton = PyType_GenericNew((PyTypeObject *)state->Add_type,
                                             NULL, NULL);
    if (!state->Add_singleton) return -1;
    state->Sub_type = make_type(state, "Sub", state->operator_type, NULL, 0,
        "Sub");
    if (!state->Sub_type) return -1;
    state->Sub_singleton = PyType_GenericNew((PyTypeObject *)state->Sub_type,
                                             NULL, NULL);
    if (!state->Sub_singleton) return -1;
    state->Mult_type = make_type(state, "Mult", state->operator_type, NULL, 0,
        "Mult");
    if (!state->Mult_type) return -1;
    state->Mult_singleton = PyType_GenericNew((PyTypeObject *)state->Mult_type,
                                              NULL, NULL);
    if (!state->Mult_singleton) return -1;
    state->MatMult_type = make_type(state, "MatMult", state->operator_type,
                                    NULL, 0,
        "MatMult");
    if (!state->MatMult_type) return -1;
    state->MatMult_singleton = PyType_GenericNew((PyTypeObject
                                                 *)state->MatMult_type, NULL,
                                                 NULL);
    if (!state->MatMult_singleton) return -1;
    state->Div_type = make_type(state, "Div", state->operator_type, NULL, 0,
        "Div");
    if (!state->Div_type) return -1;
    state->Div_singleton = PyType_GenericNew((PyTypeObject *)state->Div_type,
                                             NULL, NULL);
    if (!state->Div_singleton) return -1;
    state->Mod_type = make_type(state, "Mod", state->operator_type, NULL, 0,
        "Mod");
    if (!state->Mod_type) return -1;
    state->Mod_singleton = PyType_GenericNew((PyTypeObject *)state->Mod_type,
                                             NULL, NULL);
    if (!state->Mod_singleton) return -1;
    state->Pow_type = make_type(state, "Pow", state->operator_type, NULL, 0,
        "Pow");
    if (!state->Pow_type) return -1;
    state->Pow_singleton = PyType_GenericNew((PyTypeObject *)state->Pow_type,
                                             NULL, NULL);
    if (!state->Pow_singleton) return -1;
    state->LShift_type = make_type(state, "LShift", state->operator_type, NULL,
                                   0,
        "LShift");
    if (!state->LShift_type) return -1;
    state->LShift_singleton = PyType_GenericNew((PyTypeObject
                                                *)state->LShift_type, NULL,
                                                NULL);
    if (!state->LShift_singleton) return -1;
    state->RShift_type = make_type(state, "RShift", state->operator_type, NULL,
                                   0,
        "RShift");
    if (!state->RShift_type) return -1;
    state->RShift_singleton = PyType_GenericNew((PyTypeObject
                                                *)state->RShift_type, NULL,
                                                NULL);
    if (!state->RShift_singleton) return -1;
    state->BitOr_type = make_type(state, "BitOr", state->operator_type, NULL, 0,
        "BitOr");
    if (!state->BitOr_type) return -1;
    state->BitOr_singleton = PyType_GenericNew((PyTypeObject
                                               *)state->BitOr_type, NULL, NULL);
    if (!state->BitOr_singleton) return -1;
    state->BitXor_type = make_type(state, "BitXor", state->operator_type, NULL,
                                   0,
        "BitXor");
    if (!state->BitXor_type) return -1;
    state->BitXor_singleton = PyType_GenericNew((PyTypeObject
                                                *)state->BitXor_type, NULL,
                                                NULL);
    if (!state->BitXor_singleton) return -1;
    state->BitAnd_type = make_type(state, "BitAnd", state->operator_type, NULL,
                                   0,
        "BitAnd");
    if (!state->BitAnd_type) return -1;
    state->BitAnd_singleton = PyType_GenericNew((PyTypeObject
                                                *)state->BitAnd_type, NULL,
                                                NULL);
    if (!state->BitAnd_singleton) return -1;
    state->FloorDiv_type = make_type(state, "FloorDiv", state->operator_type,
                                     NULL, 0,
        "FloorDiv");
    if (!state->FloorDiv_type) return -1;
    state->FloorDiv_singleton = PyType_GenericNew((PyTypeObject
                                                  *)state->FloorDiv_type, NULL,
                                                  NULL);
    if (!state->FloorDiv_singleton) return -1;
    state->unaryop_type = make_type(state, "unaryop", state->AST_type, NULL, 0,
        "unaryop = Invert | Not | UAdd | USub");
    if (!state->unaryop_type) return -1;
    if (add_attributes(state, state->unaryop_type, NULL, 0) < 0) return -1;
    if (PySet_Add(state->abstract_types, state->unaryop_type) < 0) return -1;
    state->Invert_type = make_type(state, "Invert", state->unaryop_type, NULL,
                                   0,
        "Invert");
    if (!state->Invert_type) return -1;
    state->Invert_singleton = PyType_GenericNew((PyTypeObject
                                                *)state->Invert_type, NULL,
                                                NULL);
    if (!state->Invert_singleton) return -1;
    state->Not_type = make_type(state, "Not", state->unaryop_type, NULL, 0,
        "Not");
    if (!state->Not_type) return -1;
    state->Not_singleton = PyType_GenericNew((PyTypeObject *)state->Not_type,
                                             NULL, NULL);
    if (!state->Not_singleton) return -1;
    state->UAdd_type = make_type(state, "UAdd", state->unaryop_type, NULL, 0,
        "UAdd");
    if (!state->UAdd_type) return -1;
    state->UAdd_singleton = PyType_GenericNew((PyTypeObject *)state->UAdd_type,
                                              NULL, NULL);
    if (!state->UAdd_singleton) return -1;
    state->USub_type = make_type(state, "USub", state->unaryop_type, NULL, 0,
        "USub");
    if (!state->USub_type) return -1;
    state->USub_singleton = PyType_GenericNew((PyTypeObject *)state->USub_type,
                                              NULL, NULL);
    if (!state->USub_singleton) return -1;
    state->cmpop_type = make_type(state, "cmpop", state->AST_type, NULL, 0,
        "cmpop = Eq | NotEq | Lt | LtE | Gt | GtE | Is | IsNot | In | NotIn");
    if (!state->cmpop_type) return -1;
    if (add_attributes(state, state->cmpop_type, NULL, 0) < 0) return -1;
    if (PySet_Add(state->abstract_types, state->cmpop_type) < 0) return -1;
    state->Eq_type = make_type(state, "Eq", state->cmpop_type, NULL, 0,
        "Eq");
    if (!state->Eq_type) return -1;
    state->Eq_singleton = PyType_GenericNew((PyTypeObject *)state->Eq_type,
                                            NULL, NULL);
    if (!state->Eq_singleton) return -1;
    state->NotEq_type = make_type(state, "NotEq", state->cmpop_type, NULL, 0,
        "NotEq");
    if (!state->NotEq_type) return -1;
    state->NotEq_singleton = PyType_GenericNew((PyTypeObject
                                               *)state->NotEq_type, NULL, NULL);
    if (!state->NotEq_singleton) return -1;
    state->Lt_type = make_type(state, "Lt", state->cmpop_type, NULL, 0,
        "Lt");
    if (!state->Lt_type) return -1;
    state->Lt_singleton = PyType_GenericNew((PyTypeObject *)state->Lt_type,
                                            NULL, NULL);
    if (!state->Lt_singleton) return -1;
    state->LtE_type = make_type(state, "LtE", state->cmpop_type, NULL, 0,
        "LtE");
    if (!state->LtE_type) return -1;
    state->LtE_singleton = PyType_GenericNew((PyTypeObject *)state->LtE_type,
                                             NULL, NULL);
    if (!state->LtE_singleton) return -1;
    state->Gt_type = make_type(state, "Gt", state->cmpop_type, NULL, 0,
        "Gt");
    if (!state->Gt_type) return -1;
    state->Gt_singleton = PyType_GenericNew((PyTypeObject *)state->Gt_type,
                                            NULL, NULL);
    if (!state->Gt_singleton) return -1;
    state->GtE_type = make_type(state, "GtE", state->cmpop_type, NULL, 0,
        "GtE");
    if (!state->GtE_type) return -1;
    state->GtE_singleton = PyType_GenericNew((PyTypeObject *)state->GtE_type,
                                             NULL, NULL);
    if (!state->GtE_singleton) return -1;
    state->Is_type = make_type(state, "Is", state->cmpop_type, NULL, 0,
        "Is");
    if (!state->Is_type) return -1;
    state->Is_singleton = PyType_GenericNew((PyTypeObject *)state->Is_type,
                                            NULL, NULL);
    if (!state->Is_singleton) return -1;
    state->IsNot_type = make_type(state, "IsNot", state->cmpop_type, NULL, 0,
        "IsNot");
    if (!state->IsNot_type) return -1;
    state->IsNot_singleton = PyType_GenericNew((PyTypeObject
                                               *)state->IsNot_type, NULL, NULL);
    if (!state->IsNot_singleton) return -1;
    state->In_type = make_type(state, "In", state->cmpop_type, NULL, 0,
        "In");
    if (!state->In_type) return -1;
    state->In_singleton = PyType_GenericNew((PyTypeObject *)state->In_type,
                                            NULL, NULL);
    if (!state->In_singleton) return -1;
    state->NotIn_type = make_type(state, "NotIn", state->cmpop_type, NULL, 0,
        "NotIn");
    if (!state->NotIn_type) return -1;
    state->NotIn_singleton = PyType_GenericNew((PyTypeObject
                                               *)state->NotIn_type, NULL, NULL);
    if (!state->NotIn_singleton) return -1;
    state->comprehension_type = make_type(state, "comprehension",
                                          state->AST_type,
                                          comprehension_fields, 4,
        "comprehension(expr target, expr iter, expr* ifs, int is_async)");
    if (!state->comprehension_type) return -1;
    if (add_attributes(state, state->comprehension_type, NULL, 0) < 0) return
        -1;
    state->excepthandler_type = make_type(state, "excepthandler",
                                          state->AST_type, NULL, 0,
        "excepthandler = ExceptHandler(expr? type, identifier? name, stmt* body)");
    if (!state->excepthandler_type) return -1;
    if (add_attributes(state, state->excepthandler_type,
        excepthandler_attributes, 4) < 0) return -1;
    if (PySet_Add(state->abstract_types, state->excepthandler_type) < 0) return
        -1;
    if (PyObject_SetAttr(state->excepthandler_type, state->end_lineno, Py_None)
        == -1)
        return -1;
    if (PyObject_SetAttr(state->excepthandler_type, state->end_col_offset,
        Py_None) == -1)
        return -1;
    state->ExceptHandler_type = make_type(state, "ExceptHandler",
                                          state->excepthandler_type,
                                          ExceptHandler_fields, 3,
        "ExceptHandler(expr? type, identifier? name, stmt* body)");
    if (!state->ExceptHandler_type) return -1;
    if (PyObject_SetAttr(state->ExceptHandler_type, state->type, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->ExceptHandler_type, state->name, Py_None) == -1)
        return -1;
    state->arguments_type = make_type(state, "arguments", state->AST_type,
                                      arguments_fields, 7,
        "arguments(arg* posonlyargs, arg* args, arg? vararg, arg* kwonlyargs, expr?* kw_defaults, arg? kwarg, expr* defaults)");
    if (!state->arguments_type) return -1;
    if (add_attributes(state, state->arguments_type, NULL, 0) < 0) return -1;
    if (PyObject_SetAttr(state->arguments_type, state->vararg, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->arguments_type, state->kwarg, Py_None) == -1)
        return -1;
    state->arg_type = make_type(state, "arg", state->AST_type, arg_fields, 3,
        "arg(identifier arg, expr? annotation, string? type_comment)");
    if (!state->arg_type) return -1;
    if (add_attributes(state, state->arg_type, arg_attributes, 4) < 0) return
        -1;
    if (PyObject_SetAttr(state->arg_type, state->annotation, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->arg_type, state->type_comment, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->arg_type, state->end_lineno, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->arg_type, state->end_col_offset, Py_None) == -1)
        return -1;
    state->keyword_type = make_type(state, "keyword", state->AST_type,
                                    keyword_fields, 2,
        "keyword(identifier? arg, expr value)");
    if (!state->keyword_type) return -1;
    if (add_attributes(state, state->keyword_type, keyword_attributes, 4) < 0)
        return -1;
    if (PyObject_SetAttr(state->keyword_type, state->arg, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->keyword_type, state->end_lineno, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->keyword_type, state->end_col_offset, Py_None)
        == -1)
        return -1;
    state->alias_type = make_type(state, "alias", state->AST_type,
                                  alias_fields, 2,
        "alias(identifier name, identifier? asname)");
    if (!state->alias_type) return -1;
    if (add_attributes(state, state->alias_type, alias_attributes, 4) < 0)
        return -1;
    if (PyObject_SetAttr(state->alias_type, state->asname, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->alias_type, state->end_lineno, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->alias_type, state->end_col_offset, Py_None) ==
        -1)
        return -1;
    state->withitem_type = make_type(state, "withitem", state->AST_type,
                                     withitem_fields, 2,
        "withitem(expr context_expr, expr? optional_vars)");
    if (!state->withitem_type) return -1;
    if (add_attributes(state, state->withitem_type, NULL, 0) < 0) return -1;
    if (PyObject_SetAttr(state->withitem_type, state->optional_vars, Py_None)
        == -1)
        return -1;
    state->match_case_type = make_type(state, "match_case", state->AST_type,
                                       match_case_fields, 3,
        "match_case(pattern pattern, expr? guard, stmt* body)");
    if (!state->match_case_type) return -1;
    if (add_attributes(state, state->match_case_type, NULL, 0) < 0) return -1;
    if (PyObject_SetAttr(state->match_case_type, state->guard, Py_None) == -1)
        return -1;
    state->pattern_type = make_type(state, "pattern", state->AST_type, NULL, 0,
        "pattern = MatchValue(expr value)\n"
        "        | MatchSingleton(constant value)\n"
        "        | MatchSequence(pattern* patterns)\n"
        "        | MatchMapping(expr* keys, pattern* patterns, identifier? rest)\n"
        "        | MatchClass(expr cls, pattern* patterns, identifier* kwd_attrs, pattern* kwd_patterns)\n"
        "        | MatchStar(identifier? name)\n"
        "        | MatchAs(pattern? pattern, identifier? name)\n"
        "        | MatchOr(pattern* patterns)");
    if (!state->pattern_type) return -1;
    if (add_attributes(state, state->pattern_type, pattern_attributes, 4) < 0)
        return -1;
    if (PySet_Add(state->abstract_types, state->pattern_type) < 0) return -1;
    state->MatchValue_type = make_type(state, "MatchValue",
                                       state->pattern_type, MatchValue_fields,
                                       1,
        "MatchValue(expr value)");
    if (!state->MatchValue_type) return -1;
    state->MatchSingleton_type = make_type(state, "MatchSingleton",
                                           state->pattern_type,
                                           MatchSingleton_fields, 1,
        "MatchSingleton(constant value)");
    if (!state->MatchSingleton_type) return -1;
    state->MatchSequence_type = make_type(state, "MatchSequence",
                                          state->pattern_type,
                                          MatchSequence_fields, 1,
        "MatchSequence(pattern* patterns)");
    if (!state->MatchSequence_type) return -1;
    state->MatchMapping_type = make_type(state, "MatchMapping",
                                         state->pattern_type,
                                         MatchMapping_fields, 3,
        "MatchMapping(expr* keys, pattern* patterns, identifier? rest)");
    if (!state->MatchMapping_type) return -1;
    if (PyObject_SetAttr(state->MatchMapping_type, state->rest, Py_None) == -1)
        return -1;
    state->MatchClass_type = make_type(state, "MatchClass",
                                       state->pattern_type, MatchClass_fields,
                                       4,
        "MatchClass(expr cls, pattern* patterns, identifier* kwd_attrs, pattern* kwd_patterns)");
    if (!state->MatchClass_type) return -1;
    state->MatchStar_type = make_type(state, "MatchStar", state->pattern_type,
                                      MatchStar_fields, 1,
        "MatchStar(identifier? name)");
    if (!state->MatchStar_type) return -1;
    if (PyObject_SetAttr(state->MatchStar_type, state->name, Py_None) == -1)
        return -1;
    state->MatchAs_type = make_type(state, "MatchAs", state->pattern_type,
                                    MatchAs_fields, 2,
        "MatchAs(pattern? pattern, identifier? name)");
    if (!state->MatchAs_type) return -1;
    if (PyObject_SetAttr(state->MatchAs_type, state->pattern, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->MatchAs_type, state->name, Py_None) == -1)
        return -1;
    state->MatchOr_type = make_type(state, "MatchOr", state->pattern_type,
                                    MatchOr_fields, 1,
        "MatchOr(pattern* patterns)");
    if (!state->MatchOr_type) return -1;
    state->type_ignore_type = make_type(state, "type_ignore", state->AST_type,
                                        NULL, 0,
        "type_ignore = TypeIgnore(int lineno, string tag)");
    if (!state->type_ignore_type) return -1;
    if (add_attributes(state, state->type_ignore_type, NULL, 0) < 0) return -1;
    if (PySet_Add(state->abstract_types, state->type_ignore_type) < 0) return
        -1;
    state->TypeIgnore_type = make_type(state, "TypeIgnore",
                                       state->type_ignore_type,
                                       TypeIgnore_fields, 2,
        "TypeIgnore(int lineno, string tag)");
    if (!state->TypeIgnore_type) return -1;
    state->type_param_type = make_type(state, "type_param", state->AST_type,
                                       NULL, 0,
        "type_param = TypeVar(identifier name, expr? bound, expr? default_value)\n"
        "           | ParamSpec(identifier name, expr? default_value)\n"
        "           | TypeVarTuple(identifier name, expr? default_value)");
    if (!state->type_param_type) return -1;
    if (add_attributes(state, state->type_param_type, type_param_attributes, 4)
        < 0) return -1;
    if (PySet_Add(state->abstract_types, state->type_param_type) < 0) return -1;
    state->TypeVar_type = make_type(state, "TypeVar", state->type_param_type,
                                    TypeVar_fields, 3,
        "TypeVar(identifier name, expr? bound, expr? default_value)");
    if (!state->TypeVar_type) return -1;
    if (PyObject_SetAttr(state->TypeVar_type, state->bound, Py_None) == -1)
        return -1;
    if (PyObject_SetAttr(state->TypeVar_type, state->default_value, Py_None) ==
        -1)
        return -1;
    state->ParamSpec_type = make_type(state, "ParamSpec",
                                      state->type_param_type, ParamSpec_fields,
                                      2,
        "ParamSpec(identifier name, expr? default_value)");
    if (!state->ParamSpec_type) return -1;
    if (PyObject_SetAttr(state->ParamSpec_type, state->default_value, Py_None)
        == -1)
        return -1;
    state->TypeVarTuple_type = make_type(state, "TypeVarTuple",
                                         state->type_param_type,
                                         TypeVarTuple_fields, 2,
        "TypeVarTuple(identifier name, expr? default_value)");
    if (!state->TypeVarTuple_type) return -1;
    if (PyObject_SetAttr(state->TypeVarTuple_type, state->default_value,
        Py_None) == -1)
        return -1;

    if (!add_ast_annotations(state)) {
        return -1;
    }
    return 0;
}

static int obj2ast_mod(struct ast_state *state, PyObject* obj, mod_ty* out,
                       const char* field, PyArena* arena);
static int obj2ast_stmt(struct ast_state *state, PyObject* obj, stmt_ty* out,
                        const char* field, PyArena* arena);
static int obj2ast_expr(struct ast_state *state, PyObject* obj, expr_ty* out,
                        const char* field, PyArena* arena);
static int obj2ast_expr_context(struct ast_state *state, PyObject* obj,
                                expr_context_ty* out, const char* field,
                                PyArena* arena);
static int obj2ast_boolop(struct ast_state *state, PyObject* obj, boolop_ty*
                          out, const char* field, PyArena* arena);
static int obj2ast_operator(struct ast_state *state, PyObject* obj,
                            operator_ty* out, const char* field, PyArena*
                            arena);
static int obj2ast_unaryop(struct ast_state *state, PyObject* obj, unaryop_ty*
                           out, const char* field, PyArena* arena);
static int obj2ast_cmpop(struct ast_state *state, PyObject* obj, cmpop_ty* out,
                         const char* field, PyArena* arena);
static int obj2ast_comprehension(struct ast_state *state, PyObject* obj,
                                 comprehension_ty* out, const char* field,
                                 PyArena* arena);
static int obj2ast_excepthandler(struct ast_state *state, PyObject* obj,
                                 excepthandler_ty* out, const char* field,
                                 PyArena* arena);
static int obj2ast_arguments(struct ast_state *state, PyObject* obj,
                             arguments_ty* out, const char* field, PyArena*
                             arena);
static int obj2ast_arg(struct ast_state *state, PyObject* obj, arg_ty* out,
                       const char* field, PyArena* arena);
static int obj2ast_keyword(struct ast_state *state, PyObject* obj, keyword_ty*
                           out, const char* field, PyArena* arena);
static int obj2ast_alias(struct ast_state *state, PyObject* obj, alias_ty* out,
                         const char* field, PyArena* arena);
static int obj2ast_withitem(struct ast_state *state, PyObject* obj,
                            withitem_ty* out, const char* field, PyArena*
                            arena);
static int obj2ast_match_case(struct ast_state *state, PyObject* obj,
                              match_case_ty* out, const char* field, PyArena*
                              arena);
static int obj2ast_pattern(struct ast_state *state, PyObject* obj, pattern_ty*
                           out, const char* field, PyArena* arena);
static int obj2ast_type_ignore(struct ast_state *state, PyObject* obj,
                               type_ignore_ty* out, const char* field, PyArena*
                               arena);
static int obj2ast_type_param(struct ast_state *state, PyObject* obj,
                              type_param_ty* out, const char* field, PyArena*
                              arena);

mod_ty
_PyAST_Module(asdl_stmt_seq * body, asdl_type_ignore_seq * type_ignores,
              PyArena *arena)
{
    mod_ty p;
    p = (mod_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Module_kind;
    p->v.Module.body = body;
    p->v.Module.type_ignores = type_ignores;
    return p;
}

mod_ty
_PyAST_Interactive(asdl_stmt_seq * body, PyArena *arena)
{
    mod_ty p;
    p = (mod_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Interactive_kind;
    p->v.Interactive.body = body;
    return p;
}

mod_ty
_PyAST_Expression(expr_ty body, PyArena *arena)
{
    mod_ty p;
    if (!body) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'body' is required for Expression");
        return NULL;
    }
    p = (mod_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Expression_kind;
    p->v.Expression.body = body;
    return p;
}

mod_ty
_PyAST_FunctionType(asdl_expr_seq * argtypes, expr_ty returns, PyArena *arena)
{
    mod_ty p;
    if (!returns) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'returns' is required for FunctionType");
        return NULL;
    }
    p = (mod_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = FunctionType_kind;
    p->v.FunctionType.argtypes = argtypes;
    p->v.FunctionType.returns = returns;
    return p;
}

stmt_ty
_PyAST_FunctionDef(identifier name, arguments_ty args, asdl_stmt_seq * body,
                   asdl_expr_seq * decorator_list, expr_ty returns, string
                   type_comment, asdl_type_param_seq * type_params, int lineno,
                   int col_offset, int end_lineno, int end_col_offset, PyArena
                   *arena)
{
    stmt_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for FunctionDef");
        return NULL;
    }
    if (!args) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'args' is required for FunctionDef");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = FunctionDef_kind;
    p->v.FunctionDef.name = name;
    p->v.FunctionDef.args = args;
    p->v.FunctionDef.body = body;
    p->v.FunctionDef.decorator_list = decorator_list;
    p->v.FunctionDef.returns = returns;
    p->v.FunctionDef.type_comment = type_comment;
    p->v.FunctionDef.type_params = type_params;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_AsyncFunctionDef(identifier name, arguments_ty args, asdl_stmt_seq *
                        body, asdl_expr_seq * decorator_list, expr_ty returns,
                        string type_comment, asdl_type_param_seq * type_params,
                        int lineno, int col_offset, int end_lineno, int
                        end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for AsyncFunctionDef");
        return NULL;
    }
    if (!args) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'args' is required for AsyncFunctionDef");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = AsyncFunctionDef_kind;
    p->v.AsyncFunctionDef.name = name;
    p->v.AsyncFunctionDef.args = args;
    p->v.AsyncFunctionDef.body = body;
    p->v.AsyncFunctionDef.decorator_list = decorator_list;
    p->v.AsyncFunctionDef.returns = returns;
    p->v.AsyncFunctionDef.type_comment = type_comment;
    p->v.AsyncFunctionDef.type_params = type_params;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_ClassDef(identifier name, asdl_expr_seq * bases, asdl_keyword_seq *
                keywords, asdl_stmt_seq * body, asdl_expr_seq * decorator_list,
                asdl_type_param_seq * type_params, int lineno, int col_offset,
                int end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for ClassDef");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = ClassDef_kind;
    p->v.ClassDef.name = name;
    p->v.ClassDef.bases = bases;
    p->v.ClassDef.keywords = keywords;
    p->v.ClassDef.body = body;
    p->v.ClassDef.decorator_list = decorator_list;
    p->v.ClassDef.type_params = type_params;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Return(expr_ty value, int lineno, int col_offset, int end_lineno, int
              end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Return_kind;
    p->v.Return.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Delete(asdl_expr_seq * targets, int lineno, int col_offset, int
              end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Delete_kind;
    p->v.Delete.targets = targets;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Assign(asdl_expr_seq * targets, expr_ty value, string type_comment, int
              lineno, int col_offset, int end_lineno, int end_col_offset,
              PyArena *arena)
{
    stmt_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Assign");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Assign_kind;
    p->v.Assign.targets = targets;
    p->v.Assign.value = value;
    p->v.Assign.type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_TypeAlias(expr_ty name, asdl_type_param_seq * type_params, expr_ty
                 value, int lineno, int col_offset, int end_lineno, int
                 end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for TypeAlias");
        return NULL;
    }
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for TypeAlias");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = TypeAlias_kind;
    p->v.TypeAlias.name = name;
    p->v.TypeAlias.type_params = type_params;
    p->v.TypeAlias.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_AugAssign(expr_ty target, operator_ty op, expr_ty value, int lineno, int
                 col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for AugAssign");
        return NULL;
    }
    if (!op) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'op' is required for AugAssign");
        return NULL;
    }
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for AugAssign");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = AugAssign_kind;
    p->v.AugAssign.target = target;
    p->v.AugAssign.op = op;
    p->v.AugAssign.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_AnnAssign(expr_ty target, expr_ty annotation, expr_ty value, int simple,
                 int lineno, int col_offset, int end_lineno, int
                 end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for AnnAssign");
        return NULL;
    }
    if (!annotation) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'annotation' is required for AnnAssign");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = AnnAssign_kind;
    p->v.AnnAssign.target = target;
    p->v.AnnAssign.annotation = annotation;
    p->v.AnnAssign.value = value;
    p->v.AnnAssign.simple = simple;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_For(expr_ty target, expr_ty iter, asdl_stmt_seq * body, asdl_stmt_seq *
           orelse, string type_comment, int lineno, int col_offset, int
           end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for For");
        return NULL;
    }
    if (!iter) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'iter' is required for For");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = For_kind;
    p->v.For.target = target;
    p->v.For.iter = iter;
    p->v.For.body = body;
    p->v.For.orelse = orelse;
    p->v.For.type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_AsyncFor(expr_ty target, expr_ty iter, asdl_stmt_seq * body,
                asdl_stmt_seq * orelse, string type_comment, int lineno, int
                col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for AsyncFor");
        return NULL;
    }
    if (!iter) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'iter' is required for AsyncFor");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = AsyncFor_kind;
    p->v.AsyncFor.target = target;
    p->v.AsyncFor.iter = iter;
    p->v.AsyncFor.body = body;
    p->v.AsyncFor.orelse = orelse;
    p->v.AsyncFor.type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_While(expr_ty test, asdl_stmt_seq * body, asdl_stmt_seq * orelse, int
             lineno, int col_offset, int end_lineno, int end_col_offset,
             PyArena *arena)
{
    stmt_ty p;
    if (!test) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'test' is required for While");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = While_kind;
    p->v.While.test = test;
    p->v.While.body = body;
    p->v.While.orelse = orelse;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_If(expr_ty test, asdl_stmt_seq * body, asdl_stmt_seq * orelse, int
          lineno, int col_offset, int end_lineno, int end_col_offset, PyArena
          *arena)
{
    stmt_ty p;
    if (!test) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'test' is required for If");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = If_kind;
    p->v.If.test = test;
    p->v.If.body = body;
    p->v.If.orelse = orelse;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_With(asdl_withitem_seq * items, asdl_stmt_seq * body, string
            type_comment, int lineno, int col_offset, int end_lineno, int
            end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = With_kind;
    p->v.With.items = items;
    p->v.With.body = body;
    p->v.With.type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_AsyncWith(asdl_withitem_seq * items, asdl_stmt_seq * body, string
                 type_comment, int lineno, int col_offset, int end_lineno, int
                 end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = AsyncWith_kind;
    p->v.AsyncWith.items = items;
    p->v.AsyncWith.body = body;
    p->v.AsyncWith.type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Match(expr_ty subject, asdl_match_case_seq * cases, int lineno, int
             col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!subject) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'subject' is required for Match");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Match_kind;
    p->v.Match.subject = subject;
    p->v.Match.cases = cases;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Raise(expr_ty exc, expr_ty cause, int lineno, int col_offset, int
             end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Raise_kind;
    p->v.Raise.exc = exc;
    p->v.Raise.cause = cause;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Try(asdl_stmt_seq * body, asdl_excepthandler_seq * handlers,
           asdl_stmt_seq * orelse, asdl_stmt_seq * finalbody, int lineno, int
           col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Try_kind;
    p->v.Try.body = body;
    p->v.Try.handlers = handlers;
    p->v.Try.orelse = orelse;
    p->v.Try.finalbody = finalbody;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_TryStar(asdl_stmt_seq * body, asdl_excepthandler_seq * handlers,
               asdl_stmt_seq * orelse, asdl_stmt_seq * finalbody, int lineno,
               int col_offset, int end_lineno, int end_col_offset, PyArena
               *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = TryStar_kind;
    p->v.TryStar.body = body;
    p->v.TryStar.handlers = handlers;
    p->v.TryStar.orelse = orelse;
    p->v.TryStar.finalbody = finalbody;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Assert(expr_ty test, expr_ty msg, int lineno, int col_offset, int
              end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!test) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'test' is required for Assert");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Assert_kind;
    p->v.Assert.test = test;
    p->v.Assert.msg = msg;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Import(asdl_alias_seq * names, int is_lazy, int lineno, int col_offset,
              int end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Import_kind;
    p->v.Import.names = names;
    p->v.Import.is_lazy = is_lazy;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_ImportFrom(identifier module, asdl_alias_seq * names, int level, int
                  is_lazy, int lineno, int col_offset, int end_lineno, int
                  end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = ImportFrom_kind;
    p->v.ImportFrom.module = module;
    p->v.ImportFrom.names = names;
    p->v.ImportFrom.level = level;
    p->v.ImportFrom.is_lazy = is_lazy;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Global(asdl_identifier_seq * names, int lineno, int col_offset, int
              end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Global_kind;
    p->v.Global.names = names;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Nonlocal(asdl_identifier_seq * names, int lineno, int col_offset, int
                end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Nonlocal_kind;
    p->v.Nonlocal.names = names;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Expr(expr_ty value, int lineno, int col_offset, int end_lineno, int
            end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Expr");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Expr_kind;
    p->v.Expr.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Pass(int lineno, int col_offset, int end_lineno, int end_col_offset,
            PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Pass_kind;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Break(int lineno, int col_offset, int end_lineno, int end_col_offset,
             PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Break_kind;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Continue(int lineno, int col_offset, int end_lineno, int end_col_offset,
                PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Continue_kind;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_BoolOp(boolop_ty op, asdl_expr_seq * values, int lineno, int col_offset,
              int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!op) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'op' is required for BoolOp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = BoolOp_kind;
    p->v.BoolOp.op = op;
    p->v.BoolOp.values = values;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_NamedExpr(expr_ty target, expr_ty value, int lineno, int col_offset, int
                 end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for NamedExpr");
        return NULL;
    }
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for NamedExpr");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = NamedExpr_kind;
    p->v.NamedExpr.target = target;
    p->v.NamedExpr.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_BinOp(expr_ty left, operator_ty op, expr_ty right, int lineno, int
             col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!left) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'left' is required for BinOp");
        return NULL;
    }
    if (!op) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'op' is required for BinOp");
        return NULL;
    }
    if (!right) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'right' is required for BinOp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = BinOp_kind;
    p->v.BinOp.left = left;
    p->v.BinOp.op = op;
    p->v.BinOp.right = right;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_UnaryOp(unaryop_ty op, expr_ty operand, int lineno, int col_offset, int
               end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!op) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'op' is required for UnaryOp");
        return NULL;
    }
    if (!operand) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'operand' is required for UnaryOp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = UnaryOp_kind;
    p->v.UnaryOp.op = op;
    p->v.UnaryOp.operand = operand;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Lambda(arguments_ty args, expr_ty body, int lineno, int col_offset, int
              end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!args) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'args' is required for Lambda");
        return NULL;
    }
    if (!body) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'body' is required for Lambda");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Lambda_kind;
    p->v.Lambda.args = args;
    p->v.Lambda.body = body;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_IfExp(expr_ty test, expr_ty body, expr_ty orelse, int lineno, int
             col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!test) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'test' is required for IfExp");
        return NULL;
    }
    if (!body) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'body' is required for IfExp");
        return NULL;
    }
    if (!orelse) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'orelse' is required for IfExp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = IfExp_kind;
    p->v.IfExp.test = test;
    p->v.IfExp.body = body;
    p->v.IfExp.orelse = orelse;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Dict(asdl_expr_seq * keys, asdl_expr_seq * values, int lineno, int
            col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Dict_kind;
    p->v.Dict.keys = keys;
    p->v.Dict.values = values;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Set(asdl_expr_seq * elts, int lineno, int col_offset, int end_lineno,
           int end_col_offset, PyArena *arena)
{
    expr_ty p;
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Set_kind;
    p->v.Set.elts = elts;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_ListComp(expr_ty elt, asdl_comprehension_seq * generators, int lineno,
                int col_offset, int end_lineno, int end_col_offset, PyArena
                *arena)
{
    expr_ty p;
    if (!elt) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'elt' is required for ListComp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = ListComp_kind;
    p->v.ListComp.elt = elt;
    p->v.ListComp.generators = generators;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_SetComp(expr_ty elt, asdl_comprehension_seq * generators, int lineno,
               int col_offset, int end_lineno, int end_col_offset, PyArena
               *arena)
{
    expr_ty p;
    if (!elt) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'elt' is required for SetComp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = SetComp_kind;
    p->v.SetComp.elt = elt;
    p->v.SetComp.generators = generators;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_DictComp(expr_ty key, expr_ty value, asdl_comprehension_seq *
                generators, int lineno, int col_offset, int end_lineno, int
                end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!key) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'key' is required for DictComp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = DictComp_kind;
    p->v.DictComp.key = key;
    p->v.DictComp.value = value;
    p->v.DictComp.generators = generators;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_GeneratorExp(expr_ty elt, asdl_comprehension_seq * generators, int
                    lineno, int col_offset, int end_lineno, int end_col_offset,
                    PyArena *arena)
{
    expr_ty p;
    if (!elt) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'elt' is required for GeneratorExp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = GeneratorExp_kind;
    p->v.GeneratorExp.elt = elt;
    p->v.GeneratorExp.generators = generators;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Await(expr_ty value, int lineno, int col_offset, int end_lineno, int
             end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Await");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Await_kind;
    p->v.Await.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Yield(expr_ty value, int lineno, int col_offset, int end_lineno, int
             end_col_offset, PyArena *arena)
{
    expr_ty p;
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Yield_kind;
    p->v.Yield.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_YieldFrom(expr_ty value, int lineno, int col_offset, int end_lineno, int
                 end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for YieldFrom");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = YieldFrom_kind;
    p->v.YieldFrom.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Compare(expr_ty left, asdl_int_seq * ops, asdl_expr_seq * comparators,
               int lineno, int col_offset, int end_lineno, int end_col_offset,
               PyArena *arena)
{
    expr_ty p;
    if (!left) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'left' is required for Compare");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Compare_kind;
    p->v.Compare.left = left;
    p->v.Compare.ops = ops;
    p->v.Compare.comparators = comparators;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Call(expr_ty func, asdl_expr_seq * args, asdl_keyword_seq * keywords,
            int lineno, int col_offset, int end_lineno, int end_col_offset,
            PyArena *arena)
{
    expr_ty p;
    if (!func) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'func' is required for Call");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Call_kind;
    p->v.Call.func = func;
    p->v.Call.args = args;
    p->v.Call.keywords = keywords;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_FormattedValue(expr_ty value, int conversion, expr_ty format_spec, int
                      lineno, int col_offset, int end_lineno, int
                      end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for FormattedValue");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = FormattedValue_kind;
    p->v.FormattedValue.value = value;
    p->v.FormattedValue.conversion = conversion;
    p->v.FormattedValue.format_spec = format_spec;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Interpolation(expr_ty value, constant str, int conversion, expr_ty
                     format_spec, int lineno, int col_offset, int end_lineno,
                     int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Interpolation");
        return NULL;
    }
    if (!str) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'str' is required for Interpolation");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Interpolation_kind;
    p->v.Interpolation.value = value;
    p->v.Interpolation.str = str;
    p->v.Interpolation.conversion = conversion;
    p->v.Interpolation.format_spec = format_spec;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_JoinedStr(asdl_expr_seq * values, int lineno, int col_offset, int
                 end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = JoinedStr_kind;
    p->v.JoinedStr.values = values;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_TemplateStr(asdl_expr_seq * values, int lineno, int col_offset, int
                   end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = TemplateStr_kind;
    p->v.TemplateStr.values = values;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Constant(constant value, string kind, int lineno, int col_offset, int
                end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Constant");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Constant_kind;
    p->v.Constant.value = value;
    p->v.Constant.kind = kind;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Attribute(expr_ty value, identifier attr, expr_context_ty ctx, int
                 lineno, int col_offset, int end_lineno, int end_col_offset,
                 PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Attribute");
        return NULL;
    }
    if (!attr) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'attr' is required for Attribute");
        return NULL;
    }
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for Attribute");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Attribute_kind;
    p->v.Attribute.value = value;
    p->v.Attribute.attr = attr;
    p->v.Attribute.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Subscript(expr_ty value, expr_ty slice, expr_context_ty ctx, int lineno,
                 int col_offset, int end_lineno, int end_col_offset, PyArena
                 *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Subscript");
        return NULL;
    }
    if (!slice) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'slice' is required for Subscript");
        return NULL;
    }
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for Subscript");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Subscript_kind;
    p->v.Subscript.value = value;
    p->v.Subscript.slice = slice;
    p->v.Subscript.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Starred(expr_ty value, expr_context_ty ctx, int lineno, int col_offset,
               int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Starred");
        return NULL;
    }
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for Starred");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Starred_kind;
    p->v.Starred.value = value;
    p->v.Starred.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Name(identifier id, expr_context_ty ctx, int lineno, int col_offset, int
            end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!id) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'id' is required for Name");
        return NULL;
    }
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for Name");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Name_kind;
    p->v.Name.id = id;
    p->v.Name.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_List(asdl_expr_seq * elts, expr_context_ty ctx, int lineno, int
            col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for List");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = List_kind;
    p->v.List.elts = elts;
    p->v.List.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Tuple(asdl_expr_seq * elts, expr_context_ty ctx, int lineno, int
             col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for Tuple");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Tuple_kind;
    p->v.Tuple.elts = elts;
    p->v.Tuple.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Slice(expr_ty lower, expr_ty upper, expr_ty step, int lineno, int
             col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Slice_kind;
    p->v.Slice.lower = lower;
    p->v.Slice.upper = upper;
    p->v.Slice.step = step;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

comprehension_ty
_PyAST_comprehension(expr_ty target, expr_ty iter, asdl_expr_seq * ifs, int
                     is_async, PyArena *arena)
{
    comprehension_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for comprehension");
        return NULL;
    }
    if (!iter) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'iter' is required for comprehension");
        return NULL;
    }
    p = (comprehension_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->target = target;
    p->iter = iter;
    p->ifs = ifs;
    p->is_async = is_async;
    return p;
}

excepthandler_ty
_PyAST_ExceptHandler(expr_ty type, identifier name, asdl_stmt_seq * body, int
                     lineno, int col_offset, int end_lineno, int
                     end_col_offset, PyArena *arena)
{
    excepthandler_ty p;
    p = (excepthandler_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = ExceptHandler_kind;
    p->v.ExceptHandler.type = type;
    p->v.ExceptHandler.name = name;
    p->v.ExceptHandler.body = body;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

arguments_ty
_PyAST_arguments(asdl_arg_seq * posonlyargs, asdl_arg_seq * args, arg_ty
                 vararg, asdl_arg_seq * kwonlyargs, asdl_expr_seq *
                 kw_defaults, arg_ty kwarg, asdl_expr_seq * defaults, PyArena
                 *arena)
{
    arguments_ty p;
    p = (arguments_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->posonlyargs = posonlyargs;
    p->args = args;
    p->vararg = vararg;
    p->kwonlyargs = kwonlyargs;
    p->kw_defaults = kw_defaults;
    p->kwarg = kwarg;
    p->defaults = defaults;
    return p;
}

arg_ty
_PyAST_arg(identifier arg, expr_ty annotation, string type_comment, int lineno,
           int col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    arg_ty p;
    if (!arg) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'arg' is required for arg");
        return NULL;
    }
    p = (arg_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->arg = arg;
    p->annotation = annotation;
    p->type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

keyword_ty
_PyAST_keyword(identifier arg, expr_ty value, int lineno, int col_offset, int
               end_lineno, int end_col_offset, PyArena *arena)
{
    keyword_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for keyword");
        return NULL;
    }
    p = (keyword_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->arg = arg;
    p->value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

alias_ty
_PyAST_alias(identifier name, identifier asname, int lineno, int col_offset,
             int end_lineno, int end_col_offset, PyArena *arena)
{
    alias_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for alias");
        return NULL;
    }
    p = (alias_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->name = name;
    p->asname = asname;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

withitem_ty
_PyAST_withitem(expr_ty context_expr, expr_ty optional_vars, PyArena *arena)
{
    withitem_ty p;
    if (!context_expr) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'context_expr' is required for withitem");
        return NULL;
    }
    p = (withitem_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->context_expr = context_expr;
    p->optional_vars = optional_vars;
    return p;
}

match_case_ty
_PyAST_match_case(pattern_ty pattern, expr_ty guard, asdl_stmt_seq * body,
                  PyArena *arena)
{
    match_case_ty p;
    if (!pattern) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'pattern' is required for match_case");
        return NULL;
    }
    p = (match_case_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->pattern = pattern;
    p->guard = guard;
    p->body = body;
    return p;
}

pattern_ty
_PyAST_MatchValue(expr_ty value, int lineno, int col_offset, int end_lineno,
                  int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for MatchValue");
        return NULL;
    }
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchValue_kind;
    p->v.MatchValue.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchSingleton(constant value, int lineno, int col_offset, int
                      end_lineno, int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for MatchSingleton");
        return NULL;
    }
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchSingleton_kind;
    p->v.MatchSingleton.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchSequence(asdl_pattern_seq * patterns, int lineno, int col_offset,
                     int end_lineno, int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchSequence_kind;
    p->v.MatchSequence.patterns = patterns;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchMapping(asdl_expr_seq * keys, asdl_pattern_seq * patterns,
                    identifier rest, int lineno, int col_offset, int
                    end_lineno, int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchMapping_kind;
    p->v.MatchMapping.keys = keys;
    p->v.MatchMapping.patterns = patterns;
    p->v.MatchMapping.rest = rest;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchClass(expr_ty cls, asdl_pattern_seq * patterns, asdl_identifier_seq
                  * kwd_attrs, asdl_pattern_seq * kwd_patterns, int lineno, int
                  col_offset, int end_lineno, int end_col_offset, PyArena
                  *arena)
{
    pattern_ty p;
    if (!cls) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'cls' is required for MatchClass");
        return NULL;
    }
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchClass_kind;
    p->v.MatchClass.cls = cls;
    p->v.MatchClass.patterns = patterns;
    p->v.MatchClass.kwd_attrs = kwd_attrs;
    p->v.MatchClass.kwd_patterns = kwd_patterns;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchStar(identifier name, int lineno, int col_offset, int end_lineno,
                 int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchStar_kind;
    p->v.MatchStar.name = name;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchAs(pattern_ty pattern, identifier name, int lineno, int col_offset,
               int end_lineno, int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchAs_kind;
    p->v.MatchAs.pattern = pattern;
    p->v.MatchAs.name = name;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchOr(asdl_pattern_seq * patterns, int lineno, int col_offset, int
               end_lineno, int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchOr_kind;
    p->v.MatchOr.patterns = patterns;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

type_ignore_ty
_PyAST_TypeIgnore(int lineno, string tag, PyArena *arena)
{
    type_ignore_ty p;
    if (!tag) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'tag' is required for TypeIgnore");
        return NULL;
    }
    p = (type_ignore_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = TypeIgnore_kind;
    p->v.TypeIgnore.lineno = lineno;
    p->v.TypeIgnore.tag = tag;
    return p;
}

type_param_ty
_PyAST_TypeVar(identifier name, expr_ty bound, expr_ty default_value, int
               lineno, int col_offset, int end_lineno, int end_col_offset,
               PyArena *arena)
{
    type_param_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for TypeVar");
        return NULL;
    }
    p = (type_param_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = TypeVar_kind;
    p->v.TypeVar.name = name;
    p->v.TypeVar.bound = bound;
    p->v.TypeVar.default_value = default_value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

type_param_ty
_PyAST_ParamSpec(identifier name, expr_ty default_value, int lineno, int
                 col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    type_param_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for ParamSpec");
        return NULL;
    }
    p = (type_param_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = ParamSpec_kind;
    p->v.ParamSpec.name = name;
    p->v.ParamSpec.default_value = default_value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

type_param_ty
_PyAST_TypeVarTuple(identifier name, expr_ty default_value, int lineno, int
                    col_offset, int end_lineno, int end_col_offset, PyArena
                    *arena)
{
    type_param_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for TypeVarTuple");
        return NULL;
    }
    p = (type_param_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = TypeVarTuple_kind;
    p->v.TypeVarTuple.name = name;
    p->v.TypeVarTuple.default_value = default_value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}


PyObject*
ast2obj_mod(struct ast_state *state, void* _o)
{
    mod_ty o = (mod_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    switch (o->kind) {
    case Module_kind:
        tp = (PyTypeObject *)state->Module_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.Module.body, ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.Module.type_ignores,
                             ast2obj_type_ignore);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_ignores, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Interactive_kind:
        tp = (PyTypeObject *)state->Interactive_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.Interactive.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Expression_kind:
        tp = (PyTypeObject *)state->Expression_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Expression.body);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case FunctionType_kind:
        tp = (PyTypeObject *)state->FunctionType_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.FunctionType.argtypes,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->argtypes, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.FunctionType.returns);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->returns, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_stmt(struct ast_state *state, void* _o)
{
    stmt_ty o = (stmt_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    switch (o->kind) {
    case FunctionDef_kind:
        tp = (PyTypeObject *)state->FunctionDef_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, o->v.FunctionDef.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_arguments(state, o->v.FunctionDef.args);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->args, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.FunctionDef.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.FunctionDef.decorator_list,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->decorator_list, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.FunctionDef.returns);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->returns, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, o->v.FunctionDef.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.FunctionDef.type_params,
                             ast2obj_type_param);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_params, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case AsyncFunctionDef_kind:
        tp = (PyTypeObject *)state->AsyncFunctionDef_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, o->v.AsyncFunctionDef.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_arguments(state, o->v.AsyncFunctionDef.args);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->args, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.AsyncFunctionDef.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state,
                             (asdl_seq*)o->v.AsyncFunctionDef.decorator_list,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->decorator_list, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.AsyncFunctionDef.returns);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->returns, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, o->v.AsyncFunctionDef.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state,
                             (asdl_seq*)o->v.AsyncFunctionDef.type_params,
                             ast2obj_type_param);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_params, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case ClassDef_kind:
        tp = (PyTypeObject *)state->ClassDef_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, o->v.ClassDef.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.ClassDef.bases,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->bases, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.ClassDef.keywords,
                             ast2obj_keyword);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->keywords, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.ClassDef.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.ClassDef.decorator_list,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->decorator_list, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.ClassDef.type_params,
                             ast2obj_type_param);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_params, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Return_kind:
        tp = (PyTypeObject *)state->Return_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Return.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Delete_kind:
        tp = (PyTypeObject *)state->Delete_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.Delete.targets,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->targets, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Assign_kind:
        tp = (PyTypeObject *)state->Assign_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.Assign.targets,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->targets, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.Assign.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, o->v.Assign.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case TypeAlias_kind:
        tp = (PyTypeObject *)state->TypeAlias_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.TypeAlias.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.TypeAlias.type_params,
                             ast2obj_type_param);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_params, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.TypeAlias.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case AugAssign_kind:
        tp = (PyTypeObject *)state->AugAssign_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.AugAssign.target);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->target, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_operator(state, o->v.AugAssign.op);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->op, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.AugAssign.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case AnnAssign_kind:
        tp = (PyTypeObject *)state->AnnAssign_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.AnnAssign.target);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->target, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.AnnAssign.annotation);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->annotation, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.AnnAssign.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_int(state, o->v.AnnAssign.simple);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->simple, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case For_kind:
        tp = (PyTypeObject *)state->For_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.For.target);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->target, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.For.iter);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->iter, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.For.body, ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.For.orelse, ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, o->v.For.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case AsyncFor_kind:
        tp = (PyTypeObject *)state->AsyncFor_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.AsyncFor.target);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->target, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.AsyncFor.iter);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->iter, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.AsyncFor.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.AsyncFor.orelse,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, o->v.AsyncFor.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case While_kind:
        tp = (PyTypeObject *)state->While_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.While.test);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->test, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.While.body, ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.While.orelse, ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case If_kind:
        tp = (PyTypeObject *)state->If_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.If.test);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->test, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.If.body, ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.If.orelse, ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case With_kind:
        tp = (PyTypeObject *)state->With_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.With.items,
                             ast2obj_withitem);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->items, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.With.body, ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, o->v.With.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case AsyncWith_kind:
        tp = (PyTypeObject *)state->AsyncWith_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.AsyncWith.items,
                             ast2obj_withitem);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->items, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.AsyncWith.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, o->v.AsyncWith.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Match_kind:
        tp = (PyTypeObject *)state->Match_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Match.subject);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->subject, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.Match.cases,
                             ast2obj_match_case);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->cases, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Raise_kind:
        tp = (PyTypeObject *)state->Raise_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Raise.exc);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->exc, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.Raise.cause);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->cause, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Try_kind:
        tp = (PyTypeObject *)state->Try_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.Try.body, ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.Try.handlers,
                             ast2obj_excepthandler);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->handlers, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.Try.orelse, ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.Try.finalbody,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->finalbody, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case TryStar_kind:
        tp = (PyTypeObject *)state->TryStar_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.TryStar.body, ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.TryStar.handlers,
                             ast2obj_excepthandler);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->handlers, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.TryStar.orelse,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.TryStar.finalbody,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->finalbody, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Assert_kind:
        tp = (PyTypeObject *)state->Assert_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Assert.test);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->test, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.Assert.msg);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->msg, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Import_kind:
        tp = (PyTypeObject *)state->Import_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.Import.names,
                             ast2obj_alias);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->names, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_int(state, o->v.Import.is_lazy);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->is_lazy, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case ImportFrom_kind:
        tp = (PyTypeObject *)state->ImportFrom_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, o->v.ImportFrom.module);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->module, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.ImportFrom.names,
                             ast2obj_alias);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->names, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_int(state, o->v.ImportFrom.level);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->level, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_int(state, o->v.ImportFrom.is_lazy);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->is_lazy, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Global_kind:
        tp = (PyTypeObject *)state->Global_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.Global.names,
                             ast2obj_identifier);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->names, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Nonlocal_kind:
        tp = (PyTypeObject *)state->Nonlocal_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.Nonlocal.names,
                             ast2obj_identifier);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->names, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Expr_kind:
        tp = (PyTypeObject *)state->Expr_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Expr.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Pass_kind:
        tp = (PyTypeObject *)state->Pass_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        break;
    case Break_kind:
        tp = (PyTypeObject *)state->Break_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        break;
    case Continue_kind:
        tp = (PyTypeObject *)state->Continue_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        break;
    }
    value = ast2obj_int(state, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_expr(struct ast_state *state, void* _o)
{
    expr_ty o = (expr_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    switch (o->kind) {
    case BoolOp_kind:
        tp = (PyTypeObject *)state->BoolOp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_boolop(state, o->v.BoolOp.op);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->op, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.BoolOp.values,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->values, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case NamedExpr_kind:
        tp = (PyTypeObject *)state->NamedExpr_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.NamedExpr.target);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->target, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.NamedExpr.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case BinOp_kind:
        tp = (PyTypeObject *)state->BinOp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.BinOp.left);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->left, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_operator(state, o->v.BinOp.op);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->op, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.BinOp.right);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->right, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case UnaryOp_kind:
        tp = (PyTypeObject *)state->UnaryOp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_unaryop(state, o->v.UnaryOp.op);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->op, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.UnaryOp.operand);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->operand, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Lambda_kind:
        tp = (PyTypeObject *)state->Lambda_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_arguments(state, o->v.Lambda.args);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->args, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.Lambda.body);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case IfExp_kind:
        tp = (PyTypeObject *)state->IfExp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.IfExp.test);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->test, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.IfExp.body);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.IfExp.orelse);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Dict_kind:
        tp = (PyTypeObject *)state->Dict_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.Dict.keys, ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->keys, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.Dict.values, ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->values, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Set_kind:
        tp = (PyTypeObject *)state->Set_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.Set.elts, ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elts, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case ListComp_kind:
        tp = (PyTypeObject *)state->ListComp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.ListComp.elt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elt, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.ListComp.generators,
                             ast2obj_comprehension);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->generators, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case SetComp_kind:
        tp = (PyTypeObject *)state->SetComp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.SetComp.elt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elt, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.SetComp.generators,
                             ast2obj_comprehension);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->generators, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case DictComp_kind:
        tp = (PyTypeObject *)state->DictComp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.DictComp.key);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->key, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.DictComp.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.DictComp.generators,
                             ast2obj_comprehension);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->generators, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case GeneratorExp_kind:
        tp = (PyTypeObject *)state->GeneratorExp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.GeneratorExp.elt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elt, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.GeneratorExp.generators,
                             ast2obj_comprehension);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->generators, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Await_kind:
        tp = (PyTypeObject *)state->Await_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Await.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Yield_kind:
        tp = (PyTypeObject *)state->Yield_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Yield.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case YieldFrom_kind:
        tp = (PyTypeObject *)state->YieldFrom_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.YieldFrom.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Compare_kind:
        tp = (PyTypeObject *)state->Compare_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Compare.left);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->left, value) == -1)
            goto failed;
        Py_DECREF(value);
        {
            Py_ssize_t i, n = asdl_seq_LEN(o->v.Compare.ops);
            value = PyList_New(n);
            if (!value) goto failed;
            for(i = 0; i < n; i++)
                PyList_SET_ITEM(value, i, ast2obj_cmpop(state, (cmpop_ty)asdl_seq_GET(o->v.Compare.ops, i)));
        }
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ops, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.Compare.comparators,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->comparators, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Call_kind:
        tp = (PyTypeObject *)state->Call_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Call.func);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->func, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.Call.args, ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->args, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.Call.keywords,
                             ast2obj_keyword);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->keywords, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case FormattedValue_kind:
        tp = (PyTypeObject *)state->FormattedValue_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.FormattedValue.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_int(state, o->v.FormattedValue.conversion);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->conversion, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.FormattedValue.format_spec);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->format_spec, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Interpolation_kind:
        tp = (PyTypeObject *)state->Interpolation_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Interpolation.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_constant(state, o->v.Interpolation.str);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->str, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_int(state, o->v.Interpolation.conversion);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->conversion, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.Interpolation.format_spec);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->format_spec, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case JoinedStr_kind:
        tp = (PyTypeObject *)state->JoinedStr_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.JoinedStr.values,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->values, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case TemplateStr_kind:
        tp = (PyTypeObject *)state->TemplateStr_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.TemplateStr.values,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->values, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Constant_kind:
        tp = (PyTypeObject *)state->Constant_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_constant(state, o->v.Constant.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, o->v.Constant.kind);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->kind, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Attribute_kind:
        tp = (PyTypeObject *)state->Attribute_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Attribute.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_identifier(state, o->v.Attribute.attr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->attr, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, o->v.Attribute.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Subscript_kind:
        tp = (PyTypeObject *)state->Subscript_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Subscript.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.Subscript.slice);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->slice, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, o->v.Subscript.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Starred_kind:
        tp = (PyTypeObject *)state->Starred_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Starred.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, o->v.Starred.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Name_kind:
        tp = (PyTypeObject *)state->Name_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, o->v.Name.id);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->id, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, o->v.Name.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case List_kind:
        tp = (PyTypeObject *)state->List_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.List.elts, ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elts, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, o->v.List.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Tuple_kind:
        tp = (PyTypeObject *)state->Tuple_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.Tuple.elts, ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elts, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, o->v.Tuple.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Slice_kind:
        tp = (PyTypeObject *)state->Slice_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.Slice.lower);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->lower, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.Slice.upper);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->upper, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.Slice.step);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->step, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    value = ast2obj_int(state, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject* ast2obj_expr_context(struct ast_state *state, expr_context_ty o)
{
    switch(o) {
        case Load:
            return Py_NewRef(state->Load_singleton);
        case Store:
            return Py_NewRef(state->Store_singleton);
        case Del:
            return Py_NewRef(state->Del_singleton);
    }
    Py_UNREACHABLE();
}
PyObject* ast2obj_boolop(struct ast_state *state, boolop_ty o)
{
    switch(o) {
        case And:
            return Py_NewRef(state->And_singleton);
        case Or:
            return Py_NewRef(state->Or_singleton);
    }
    Py_UNREACHABLE();
}
PyObject* ast2obj_operator(struct ast_state *state, operator_ty o)
{
    switch(o) {
        case Add:
            return Py_NewRef(state->Add_singleton);
        case Sub:
            return Py_NewRef(state->Sub_singleton);
        case Mult:
            return Py_NewRef(state->Mult_singleton);
        case MatMult:
            return Py_NewRef(state->MatMult_singleton);
        case Div:
            return Py_NewRef(state->Div_singleton);
        case Mod:
            return Py_NewRef(state->Mod_singleton);
        case Pow:
            return Py_NewRef(state->Pow_singleton);
        case LShift:
            return Py_NewRef(state->LShift_singleton);
        case RShift:
            return Py_NewRef(state->RShift_singleton);
        case BitOr:
            return Py_NewRef(state->BitOr_singleton);
        case BitXor:
            return Py_NewRef(state->BitXor_singleton);
        case BitAnd:
            return Py_NewRef(state->BitAnd_singleton);
        case FloorDiv:
            return Py_NewRef(state->FloorDiv_singleton);
    }
    Py_UNREACHABLE();
}
PyObject* ast2obj_unaryop(struct ast_state *state, unaryop_ty o)
{
    switch(o) {
        case Invert:
            return Py_NewRef(state->Invert_singleton);
        case Not:
            return Py_NewRef(state->Not_singleton);
        case UAdd:
            return Py_NewRef(state->UAdd_singleton);
        case USub:
            return Py_NewRef(state->USub_singleton);
    }
    Py_UNREACHABLE();
}
PyObject* ast2obj_cmpop(struct ast_state *state, cmpop_ty o)
{
    switch(o) {
        case Eq:
            return Py_NewRef(state->Eq_singleton);
        case NotEq:
            return Py_NewRef(state->NotEq_singleton);
        case Lt:
            return Py_NewRef(state->Lt_singleton);
        case LtE:
            return Py_NewRef(state->LtE_singleton);
        case Gt:
            return Py_NewRef(state->Gt_singleton);
        case GtE:
            return Py_NewRef(state->GtE_singleton);
        case Is:
            return Py_NewRef(state->Is_singleton);
        case IsNot:
            return Py_NewRef(state->IsNot_singleton);
        case In:
            return Py_NewRef(state->In_singleton);
        case NotIn:
            return Py_NewRef(state->NotIn_singleton);
    }
    Py_UNREACHABLE();
}
PyObject*
ast2obj_comprehension(struct ast_state *state, void* _o)
{
    comprehension_ty o = (comprehension_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    tp = (PyTypeObject *)state->comprehension_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_expr(state, o->target);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->target, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_expr(state, o->iter);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->iter, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, (asdl_seq*)o->ifs, ast2obj_expr);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->ifs, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->is_async);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->is_async, value) == -1)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_excepthandler(struct ast_state *state, void* _o)
{
    excepthandler_ty o = (excepthandler_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    switch (o->kind) {
    case ExceptHandler_kind:
        tp = (PyTypeObject *)state->ExceptHandler_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.ExceptHandler.type);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_identifier(state, o->v.ExceptHandler.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.ExceptHandler.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    value = ast2obj_int(state, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_arguments(struct ast_state *state, void* _o)
{
    arguments_ty o = (arguments_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    tp = (PyTypeObject *)state->arguments_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_list(state, (asdl_seq*)o->posonlyargs, ast2obj_arg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->posonlyargs, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, (asdl_seq*)o->args, ast2obj_arg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->args, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_arg(state, o->vararg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->vararg, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, (asdl_seq*)o->kwonlyargs, ast2obj_arg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->kwonlyargs, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, (asdl_seq*)o->kw_defaults, ast2obj_expr);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->kw_defaults, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_arg(state, o->kwarg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->kwarg, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, (asdl_seq*)o->defaults, ast2obj_expr);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->defaults, value) == -1)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_arg(struct ast_state *state, void* _o)
{
    arg_ty o = (arg_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    tp = (PyTypeObject *)state->arg_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_identifier(state, o->arg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->arg, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_expr(state, o->annotation);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->annotation, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_string(state, o->type_comment);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->type_comment, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_keyword(struct ast_state *state, void* _o)
{
    keyword_ty o = (keyword_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    tp = (PyTypeObject *)state->keyword_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_identifier(state, o->arg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->arg, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_expr(state, o->value);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->value, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_alias(struct ast_state *state, void* _o)
{
    alias_ty o = (alias_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    tp = (PyTypeObject *)state->alias_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_identifier(state, o->name);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->name, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_identifier(state, o->asname);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->asname, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_withitem(struct ast_state *state, void* _o)
{
    withitem_ty o = (withitem_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    tp = (PyTypeObject *)state->withitem_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_expr(state, o->context_expr);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->context_expr, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_expr(state, o->optional_vars);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->optional_vars, value) == -1)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_match_case(struct ast_state *state, void* _o)
{
    match_case_ty o = (match_case_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    tp = (PyTypeObject *)state->match_case_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_pattern(state, o->pattern);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->pattern, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_expr(state, o->guard);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->guard, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, (asdl_seq*)o->body, ast2obj_stmt);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->body, value) == -1)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_pattern(struct ast_state *state, void* _o)
{
    pattern_ty o = (pattern_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    switch (o->kind) {
    case MatchValue_kind:
        tp = (PyTypeObject *)state->MatchValue_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.MatchValue.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchSingleton_kind:
        tp = (PyTypeObject *)state->MatchSingleton_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_constant(state, o->v.MatchSingleton.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchSequence_kind:
        tp = (PyTypeObject *)state->MatchSequence_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.MatchSequence.patterns,
                             ast2obj_pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->patterns, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchMapping_kind:
        tp = (PyTypeObject *)state->MatchMapping_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.MatchMapping.keys,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->keys, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.MatchMapping.patterns,
                             ast2obj_pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->patterns, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_identifier(state, o->v.MatchMapping.rest);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->rest, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchClass_kind:
        tp = (PyTypeObject *)state->MatchClass_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, o->v.MatchClass.cls);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->cls, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.MatchClass.patterns,
                             ast2obj_pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->patterns, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.MatchClass.kwd_attrs,
                             ast2obj_identifier);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->kwd_attrs, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, (asdl_seq*)o->v.MatchClass.kwd_patterns,
                             ast2obj_pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->kwd_patterns, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchStar_kind:
        tp = (PyTypeObject *)state->MatchStar_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, o->v.MatchStar.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchAs_kind:
        tp = (PyTypeObject *)state->MatchAs_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_pattern(state, o->v.MatchAs.pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->pattern, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_identifier(state, o->v.MatchAs.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchOr_kind:
        tp = (PyTypeObject *)state->MatchOr_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, (asdl_seq*)o->v.MatchOr.patterns,
                             ast2obj_pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->patterns, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    value = ast2obj_int(state, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_type_ignore(struct ast_state *state, void* _o)
{
    type_ignore_ty o = (type_ignore_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    switch (o->kind) {
    case TypeIgnore_kind:
        tp = (PyTypeObject *)state->TypeIgnore_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_int(state, o->v.TypeIgnore.lineno);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->lineno, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, o->v.TypeIgnore.tag);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->tag, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_type_param(struct ast_state *state, void* _o)
{
    type_param_ty o = (type_param_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (Py_EnterRecursiveCall("during  ast construction")) {
        return NULL;
    }
    switch (o->kind) {
    case TypeVar_kind:
        tp = (PyTypeObject *)state->TypeVar_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, o->v.TypeVar.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.TypeVar.bound);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->bound, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.TypeVar.default_value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->default_value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case ParamSpec_kind:
        tp = (PyTypeObject *)state->ParamSpec_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, o->v.ParamSpec.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.ParamSpec.default_value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->default_value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case TypeVarTuple_kind:
        tp = (PyTypeObject *)state->TypeVarTuple_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, o->v.TypeVarTuple.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, o->v.TypeVarTuple.default_value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->default_value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    value = ast2obj_int(state, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    Py_LeaveRecursiveCall();
    return result;
failed:
    Py_LeaveRecursiveCall();
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}


int
obj2ast_mod(struct ast_state *state, PyObject* obj, mod_ty* out, const char*
            field, PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    tp = state->mod_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (!isinstance && field != NULL) {
        PyErr_Format(PyExc_TypeError, "field '%s' was expecting node of type 'mod', got '%T'", field, obj);
        return 1;
    }
    tp = state->Module_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_stmt_seq* body;
        asdl_type_ignore_seq* type_ignores;

        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Module field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Module' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Module field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_ignores, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Module field \"type_ignores\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            type_ignores = _Py_asdl_type_ignore_seq_new(len, arena);
            if (type_ignores == NULL) goto failed;
            for (i = 0; i < len; i++) {
                type_ignore_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Module' node")) {
                    goto failed;
                }
                res = obj2ast_type_ignore(state, tmp2, &val, "type_ignores", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Module field \"type_ignores\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(type_ignores, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Module(body, type_ignores, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Interactive_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_stmt_seq* body;

        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Interactive field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Interactive' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Interactive field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Interactive(body, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Expression_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty body;

        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from Expression");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Expression' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &body, "body", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Expression(body, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->FunctionType_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_expr_seq* argtypes;
        expr_ty returns;

        if (PyObject_GetOptionalAttr(obj, state->argtypes, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "FunctionType field \"argtypes\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            argtypes = _Py_asdl_expr_seq_new(len, arena);
            if (argtypes == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'FunctionType' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "argtypes", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "FunctionType field \"argtypes\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(argtypes, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->returns, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"returns\" missing from FunctionType");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FunctionType' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &returns, "returns", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_FunctionType(argtypes, returns, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of mod, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_stmt(struct ast_state *state, PyObject* obj, stmt_ty* out, const char*
             field, PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    tp = state->stmt_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (!isinstance && field != NULL) {
        PyErr_Format(PyExc_TypeError, "field '%s' was expecting node of type 'stmt', got '%T'", field, obj);
        return 1;
    }
    if (PyObject_GetOptionalAttr(obj, state->lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from stmt");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'stmt' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, "lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from stmt");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'stmt' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, "col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'stmt' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, "end_lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'stmt' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, "end_col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    tp = state->FunctionDef_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        identifier name;
        arguments_ty args;
        asdl_stmt_seq* body;
        asdl_expr_seq* decorator_list;
        expr_ty returns;
        string type_comment;
        asdl_type_param_seq* type_params;

        if (PyObject_GetOptionalAttr(obj, state->name, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from FunctionDef");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, "name", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->args, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"args\" missing from FunctionDef");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_arguments(state, tmp, &args, "args", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "FunctionDef field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "FunctionDef field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->decorator_list, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "FunctionDef field \"decorator_list\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            decorator_list = _Py_asdl_expr_seq_new(len, arena);
            if (decorator_list == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "decorator_list", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "FunctionDef field \"decorator_list\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(decorator_list, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->returns, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            returns = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &returns, "returns", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_comment, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, "type_comment",
                                 arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_params, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "FunctionDef field \"type_params\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            type_params = _Py_asdl_type_param_seq_new(len, arena);
            if (type_params == NULL) goto failed;
            for (i = 0; i < len; i++) {
                type_param_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_type_param(state, tmp2, &val, "type_params", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "FunctionDef field \"type_params\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(type_params, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_FunctionDef(name, args, body, decorator_list, returns,
                                  type_comment, type_params, lineno,
                                  col_offset, end_lineno, end_col_offset,
                                  arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->AsyncFunctionDef_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        identifier name;
        arguments_ty args;
        asdl_stmt_seq* body;
        asdl_expr_seq* decorator_list;
        expr_ty returns;
        string type_comment;
        asdl_type_param_seq* type_params;

        if (PyObject_GetOptionalAttr(obj, state->name, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from AsyncFunctionDef");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, "name", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->args, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"args\" missing from AsyncFunctionDef");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_arguments(state, tmp, &args, "args", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncFunctionDef field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncFunctionDef field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->decorator_list, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncFunctionDef field \"decorator_list\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            decorator_list = _Py_asdl_expr_seq_new(len, arena);
            if (decorator_list == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "decorator_list", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncFunctionDef field \"decorator_list\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(decorator_list, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->returns, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            returns = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &returns, "returns", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_comment, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, "type_comment",
                                 arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_params, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncFunctionDef field \"type_params\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            type_params = _Py_asdl_type_param_seq_new(len, arena);
            if (type_params == NULL) goto failed;
            for (i = 0; i < len; i++) {
                type_param_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_type_param(state, tmp2, &val, "type_params", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncFunctionDef field \"type_params\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(type_params, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_AsyncFunctionDef(name, args, body, decorator_list,
                                       returns, type_comment, type_params,
                                       lineno, col_offset, end_lineno,
                                       end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->ClassDef_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        identifier name;
        asdl_expr_seq* bases;
        asdl_keyword_seq* keywords;
        asdl_stmt_seq* body;
        asdl_expr_seq* decorator_list;
        asdl_type_param_seq* type_params;

        if (PyObject_GetOptionalAttr(obj, state->name, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from ClassDef");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, "name", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->bases, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ClassDef field \"bases\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            bases = _Py_asdl_expr_seq_new(len, arena);
            if (bases == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "bases", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ClassDef field \"bases\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(bases, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->keywords, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ClassDef field \"keywords\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            keywords = _Py_asdl_keyword_seq_new(len, arena);
            if (keywords == NULL) goto failed;
            for (i = 0; i < len; i++) {
                keyword_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                    goto failed;
                }
                res = obj2ast_keyword(state, tmp2, &val, "keywords", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ClassDef field \"keywords\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(keywords, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ClassDef field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ClassDef field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->decorator_list, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ClassDef field \"decorator_list\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            decorator_list = _Py_asdl_expr_seq_new(len, arena);
            if (decorator_list == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "decorator_list", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ClassDef field \"decorator_list\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(decorator_list, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_params, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ClassDef field \"type_params\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            type_params = _Py_asdl_type_param_seq_new(len, arena);
            if (type_params == NULL) goto failed;
            for (i = 0; i < len; i++) {
                type_param_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                    goto failed;
                }
                res = obj2ast_type_param(state, tmp2, &val, "type_params", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ClassDef field \"type_params\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(type_params, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_ClassDef(name, bases, keywords, body, decorator_list,
                               type_params, lineno, col_offset, end_lineno,
                               end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Return_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty value;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            value = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Return' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Return(value, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Delete_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_expr_seq* targets;

        if (PyObject_GetOptionalAttr(obj, state->targets, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Delete field \"targets\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            targets = _Py_asdl_expr_seq_new(len, arena);
            if (targets == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Delete' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "targets", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Delete field \"targets\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(targets, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Delete(targets, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Assign_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_expr_seq* targets;
        expr_ty value;
        string type_comment;

        if (PyObject_GetOptionalAttr(obj, state->targets, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Assign field \"targets\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            targets = _Py_asdl_expr_seq_new(len, arena);
            if (targets == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Assign' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "targets", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Assign field \"targets\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(targets, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Assign");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Assign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_comment, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Assign' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, "type_comment",
                                 arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Assign(targets, value, type_comment, lineno, col_offset,
                             end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->TypeAlias_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty name;
        asdl_type_param_seq* type_params;
        expr_ty value;

        if (PyObject_GetOptionalAttr(obj, state->name, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from TypeAlias");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeAlias' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &name, "name", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_params, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "TypeAlias field \"type_params\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            type_params = _Py_asdl_type_param_seq_new(len, arena);
            if (type_params == NULL) goto failed;
            for (i = 0; i < len; i++) {
                type_param_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'TypeAlias' node")) {
                    goto failed;
                }
                res = obj2ast_type_param(state, tmp2, &val, "type_params", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "TypeAlias field \"type_params\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(type_params, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from TypeAlias");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeAlias' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_TypeAlias(name, type_params, value, lineno, col_offset,
                                end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->AugAssign_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty target;
        operator_ty op;
        expr_ty value;

        if (PyObject_GetOptionalAttr(obj, state->target, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from AugAssign");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AugAssign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &target, "target", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->op, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from AugAssign");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AugAssign' node")) {
                goto failed;
            }
            res = obj2ast_operator(state, tmp, &op, "op", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from AugAssign");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AugAssign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_AugAssign(target, op, value, lineno, col_offset,
                                end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->AnnAssign_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty target;
        expr_ty annotation;
        expr_ty value;
        int simple;

        if (PyObject_GetOptionalAttr(obj, state->target, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from AnnAssign");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AnnAssign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &target, "target", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->annotation, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"annotation\" missing from AnnAssign");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AnnAssign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &annotation, "annotation", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            value = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AnnAssign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->simple, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"simple\" missing from AnnAssign");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AnnAssign' node")) {
                goto failed;
            }
            res = obj2ast_int(state, tmp, &simple, "simple", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_AnnAssign(target, annotation, value, simple, lineno,
                                col_offset, end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->For_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty target;
        expr_ty iter;
        asdl_stmt_seq* body;
        asdl_stmt_seq* orelse;
        string type_comment;

        if (PyObject_GetOptionalAttr(obj, state->target, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from For");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'For' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &target, "target", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->iter, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"iter\" missing from For");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'For' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &iter, "iter", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "For field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'For' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "For field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->orelse, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "For field \"orelse\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'For' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "orelse", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "For field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_comment, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'For' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, "type_comment",
                                 arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_For(target, iter, body, orelse, type_comment, lineno,
                          col_offset, end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->AsyncFor_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty target;
        expr_ty iter;
        asdl_stmt_seq* body;
        asdl_stmt_seq* orelse;
        string type_comment;

        if (PyObject_GetOptionalAttr(obj, state->target, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from AsyncFor");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFor' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &target, "target", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->iter, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"iter\" missing from AsyncFor");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFor' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &iter, "iter", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncFor field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncFor' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncFor field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->orelse, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncFor field \"orelse\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncFor' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "orelse", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncFor field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_comment, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFor' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, "type_comment",
                                 arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_AsyncFor(target, iter, body, orelse, type_comment,
                               lineno, col_offset, end_lineno, end_col_offset,
                               arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->While_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty test;
        asdl_stmt_seq* body;
        asdl_stmt_seq* orelse;

        if (PyObject_GetOptionalAttr(obj, state->test, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from While");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'While' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &test, "test", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "While field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'While' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "While field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->orelse, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "While field \"orelse\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'While' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "orelse", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "While field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_While(test, body, orelse, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->If_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty test;
        asdl_stmt_seq* body;
        asdl_stmt_seq* orelse;

        if (PyObject_GetOptionalAttr(obj, state->test, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from If");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'If' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &test, "test", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "If field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'If' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "If field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->orelse, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "If field \"orelse\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'If' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "orelse", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "If field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_If(test, body, orelse, lineno, col_offset, end_lineno,
                         end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->With_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_withitem_seq* items;
        asdl_stmt_seq* body;
        string type_comment;

        if (PyObject_GetOptionalAttr(obj, state->items, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "With field \"items\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            items = _Py_asdl_withitem_seq_new(len, arena);
            if (items == NULL) goto failed;
            for (i = 0; i < len; i++) {
                withitem_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'With' node")) {
                    goto failed;
                }
                res = obj2ast_withitem(state, tmp2, &val, "items", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "With field \"items\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(items, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "With field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'With' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "With field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_comment, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'With' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, "type_comment",
                                 arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_With(items, body, type_comment, lineno, col_offset,
                           end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->AsyncWith_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_withitem_seq* items;
        asdl_stmt_seq* body;
        string type_comment;

        if (PyObject_GetOptionalAttr(obj, state->items, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncWith field \"items\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            items = _Py_asdl_withitem_seq_new(len, arena);
            if (items == NULL) goto failed;
            for (i = 0; i < len; i++) {
                withitem_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncWith' node")) {
                    goto failed;
                }
                res = obj2ast_withitem(state, tmp2, &val, "items", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncWith field \"items\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(items, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncWith field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncWith' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncWith field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->type_comment, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncWith' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, "type_comment",
                                 arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_AsyncWith(items, body, type_comment, lineno, col_offset,
                                end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Match_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty subject;
        asdl_match_case_seq* cases;

        if (PyObject_GetOptionalAttr(obj, state->subject, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"subject\" missing from Match");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Match' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &subject, "subject", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->cases, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Match field \"cases\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            cases = _Py_asdl_match_case_seq_new(len, arena);
            if (cases == NULL) goto failed;
            for (i = 0; i < len; i++) {
                match_case_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Match' node")) {
                    goto failed;
                }
                res = obj2ast_match_case(state, tmp2, &val, "cases", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Match field \"cases\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(cases, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Match(subject, cases, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Raise_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty exc;
        expr_ty cause;

        if (PyObject_GetOptionalAttr(obj, state->exc, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            exc = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Raise' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &exc, "exc", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->cause, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            cause = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Raise' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &cause, "cause", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Raise(exc, cause, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Try_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_stmt_seq* body;
        asdl_excepthandler_seq* handlers;
        asdl_stmt_seq* orelse;
        asdl_stmt_seq* finalbody;

        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Try field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Try' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Try field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->handlers, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Try field \"handlers\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            handlers = _Py_asdl_excepthandler_seq_new(len, arena);
            if (handlers == NULL) goto failed;
            for (i = 0; i < len; i++) {
                excepthandler_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Try' node")) {
                    goto failed;
                }
                res = obj2ast_excepthandler(state, tmp2, &val, "handlers", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Try field \"handlers\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(handlers, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->orelse, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Try field \"orelse\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Try' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "orelse", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Try field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->finalbody, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Try field \"finalbody\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            finalbody = _Py_asdl_stmt_seq_new(len, arena);
            if (finalbody == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Try' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "finalbody", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Try field \"finalbody\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(finalbody, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Try(body, handlers, orelse, finalbody, lineno,
                          col_offset, end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->TryStar_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_stmt_seq* body;
        asdl_excepthandler_seq* handlers;
        asdl_stmt_seq* orelse;
        asdl_stmt_seq* finalbody;

        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "TryStar field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "TryStar field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->handlers, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "TryStar field \"handlers\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            handlers = _Py_asdl_excepthandler_seq_new(len, arena);
            if (handlers == NULL) goto failed;
            for (i = 0; i < len; i++) {
                excepthandler_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
                    goto failed;
                }
                res = obj2ast_excepthandler(state, tmp2, &val, "handlers", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "TryStar field \"handlers\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(handlers, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->orelse, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "TryStar field \"orelse\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "orelse", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "TryStar field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->finalbody, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "TryStar field \"finalbody\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            finalbody = _Py_asdl_stmt_seq_new(len, arena);
            if (finalbody == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "finalbody", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "TryStar field \"finalbody\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(finalbody, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_TryStar(body, handlers, orelse, finalbody, lineno,
                              col_offset, end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Assert_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty test;
        expr_ty msg;

        if (PyObject_GetOptionalAttr(obj, state->test, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from Assert");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Assert' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &test, "test", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->msg, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            msg = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Assert' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &msg, "msg", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Assert(test, msg, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Import_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_alias_seq* names;
        int is_lazy;

        if (PyObject_GetOptionalAttr(obj, state->names, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Import field \"names\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            names = _Py_asdl_alias_seq_new(len, arena);
            if (names == NULL) goto failed;
            for (i = 0; i < len; i++) {
                alias_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Import' node")) {
                    goto failed;
                }
                res = obj2ast_alias(state, tmp2, &val, "names", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Import field \"names\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(names, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->is_lazy, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            is_lazy = 0;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Import' node")) {
                goto failed;
            }
            res = obj2ast_int(state, tmp, &is_lazy, "is_lazy", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Import(names, is_lazy, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->ImportFrom_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        identifier module;
        asdl_alias_seq* names;
        int level;
        int is_lazy;

        if (PyObject_GetOptionalAttr(obj, state->module, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            module = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ImportFrom' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &module, "module", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->names, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ImportFrom field \"names\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            names = _Py_asdl_alias_seq_new(len, arena);
            if (names == NULL) goto failed;
            for (i = 0; i < len; i++) {
                alias_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ImportFrom' node")) {
                    goto failed;
                }
                res = obj2ast_alias(state, tmp2, &val, "names", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ImportFrom field \"names\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(names, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->level, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            level = 0;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ImportFrom' node")) {
                goto failed;
            }
            res = obj2ast_int(state, tmp, &level, "level", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->is_lazy, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            is_lazy = 0;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ImportFrom' node")) {
                goto failed;
            }
            res = obj2ast_int(state, tmp, &is_lazy, "is_lazy", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_ImportFrom(module, names, level, is_lazy, lineno,
                                 col_offset, end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Global_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_identifier_seq* names;

        if (PyObject_GetOptionalAttr(obj, state->names, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Global field \"names\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            names = _Py_asdl_identifier_seq_new(len, arena);
            if (names == NULL) goto failed;
            for (i = 0; i < len; i++) {
                identifier val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Global' node")) {
                    goto failed;
                }
                res = obj2ast_identifier(state, tmp2, &val, "names", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Global field \"names\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(names, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Global(names, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Nonlocal_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_identifier_seq* names;

        if (PyObject_GetOptionalAttr(obj, state->names, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Nonlocal field \"names\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            names = _Py_asdl_identifier_seq_new(len, arena);
            if (names == NULL) goto failed;
            for (i = 0; i < len; i++) {
                identifier val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Nonlocal' node")) {
                    goto failed;
                }
                res = obj2ast_identifier(state, tmp2, &val, "names", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Nonlocal field \"names\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(names, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Nonlocal(names, lineno, col_offset, end_lineno,
                               end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Expr_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty value;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Expr");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Expr' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Expr(value, lineno, col_offset, end_lineno,
                           end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Pass_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {

        *out = _PyAST_Pass(lineno, col_offset, end_lineno, end_col_offset,
                           arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Break_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {

        *out = _PyAST_Break(lineno, col_offset, end_lineno, end_col_offset,
                            arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Continue_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {

        *out = _PyAST_Continue(lineno, col_offset, end_lineno, end_col_offset,
                               arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of stmt, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_expr(struct ast_state *state, PyObject* obj, expr_ty* out, const char*
             field, PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    tp = state->expr_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (!isinstance && field != NULL) {
        PyErr_Format(PyExc_TypeError, "field '%s' was expecting node of type 'expr', got '%T'", field, obj);
        return 1;
    }
    if (PyObject_GetOptionalAttr(obj, state->lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from expr");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'expr' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, "lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from expr");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'expr' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, "col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'expr' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, "end_lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'expr' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, "end_col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    tp = state->BoolOp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        boolop_ty op;
        asdl_expr_seq* values;

        if (PyObject_GetOptionalAttr(obj, state->op, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from BoolOp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'BoolOp' node")) {
                goto failed;
            }
            res = obj2ast_boolop(state, tmp, &op, "op", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->values, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "BoolOp field \"values\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            values = _Py_asdl_expr_seq_new(len, arena);
            if (values == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'BoolOp' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "values", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "BoolOp field \"values\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(values, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_BoolOp(op, values, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->NamedExpr_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty target;
        expr_ty value;

        if (PyObject_GetOptionalAttr(obj, state->target, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from NamedExpr");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'NamedExpr' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &target, "target", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from NamedExpr");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'NamedExpr' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_NamedExpr(target, value, lineno, col_offset, end_lineno,
                                end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->BinOp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty left;
        operator_ty op;
        expr_ty right;

        if (PyObject_GetOptionalAttr(obj, state->left, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"left\" missing from BinOp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'BinOp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &left, "left", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->op, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from BinOp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'BinOp' node")) {
                goto failed;
            }
            res = obj2ast_operator(state, tmp, &op, "op", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->right, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"right\" missing from BinOp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'BinOp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &right, "right", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_BinOp(left, op, right, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->UnaryOp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        unaryop_ty op;
        expr_ty operand;

        if (PyObject_GetOptionalAttr(obj, state->op, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from UnaryOp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'UnaryOp' node")) {
                goto failed;
            }
            res = obj2ast_unaryop(state, tmp, &op, "op", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->operand, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"operand\" missing from UnaryOp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'UnaryOp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &operand, "operand", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_UnaryOp(op, operand, lineno, col_offset, end_lineno,
                              end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Lambda_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        arguments_ty args;
        expr_ty body;

        if (PyObject_GetOptionalAttr(obj, state->args, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"args\" missing from Lambda");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Lambda' node")) {
                goto failed;
            }
            res = obj2ast_arguments(state, tmp, &args, "args", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from Lambda");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Lambda' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &body, "body", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Lambda(args, body, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->IfExp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty test;
        expr_ty body;
        expr_ty orelse;

        if (PyObject_GetOptionalAttr(obj, state->test, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from IfExp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'IfExp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &test, "test", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from IfExp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'IfExp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &body, "body", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->orelse, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"orelse\" missing from IfExp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'IfExp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &orelse, "orelse", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_IfExp(test, body, orelse, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Dict_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_expr_seq* keys;
        asdl_expr_seq* values;

        if (PyObject_GetOptionalAttr(obj, state->keys, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Dict field \"keys\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            keys = _Py_asdl_expr_seq_new(len, arena);
            if (keys == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Dict' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "keys", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Dict field \"keys\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(keys, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->values, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Dict field \"values\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            values = _Py_asdl_expr_seq_new(len, arena);
            if (values == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Dict' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "values", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Dict field \"values\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(values, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Dict(keys, values, lineno, col_offset, end_lineno,
                           end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Set_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_expr_seq* elts;

        if (PyObject_GetOptionalAttr(obj, state->elts, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Set field \"elts\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            elts = _Py_asdl_expr_seq_new(len, arena);
            if (elts == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Set' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "elts", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Set field \"elts\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(elts, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Set(elts, lineno, col_offset, end_lineno, end_col_offset,
                          arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->ListComp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty elt;
        asdl_comprehension_seq* generators;

        if (PyObject_GetOptionalAttr(obj, state->elt, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"elt\" missing from ListComp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ListComp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &elt, "elt", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->generators, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ListComp field \"generators\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            generators = _Py_asdl_comprehension_seq_new(len, arena);
            if (generators == NULL) goto failed;
            for (i = 0; i < len; i++) {
                comprehension_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ListComp' node")) {
                    goto failed;
                }
                res = obj2ast_comprehension(state, tmp2, &val, "generators", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ListComp field \"generators\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(generators, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_ListComp(elt, generators, lineno, col_offset, end_lineno,
                               end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->SetComp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty elt;
        asdl_comprehension_seq* generators;

        if (PyObject_GetOptionalAttr(obj, state->elt, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"elt\" missing from SetComp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'SetComp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &elt, "elt", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->generators, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "SetComp field \"generators\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            generators = _Py_asdl_comprehension_seq_new(len, arena);
            if (generators == NULL) goto failed;
            for (i = 0; i < len; i++) {
                comprehension_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'SetComp' node")) {
                    goto failed;
                }
                res = obj2ast_comprehension(state, tmp2, &val, "generators", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "SetComp field \"generators\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(generators, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_SetComp(elt, generators, lineno, col_offset, end_lineno,
                              end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->DictComp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty key;
        expr_ty value;
        asdl_comprehension_seq* generators;

        if (PyObject_GetOptionalAttr(obj, state->key, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"key\" missing from DictComp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'DictComp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &key, "key", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            value = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'DictComp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->generators, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "DictComp field \"generators\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            generators = _Py_asdl_comprehension_seq_new(len, arena);
            if (generators == NULL) goto failed;
            for (i = 0; i < len; i++) {
                comprehension_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'DictComp' node")) {
                    goto failed;
                }
                res = obj2ast_comprehension(state, tmp2, &val, "generators", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "DictComp field \"generators\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(generators, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_DictComp(key, value, generators, lineno, col_offset,
                               end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->GeneratorExp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty elt;
        asdl_comprehension_seq* generators;

        if (PyObject_GetOptionalAttr(obj, state->elt, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"elt\" missing from GeneratorExp");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'GeneratorExp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &elt, "elt", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->generators, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "GeneratorExp field \"generators\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            generators = _Py_asdl_comprehension_seq_new(len, arena);
            if (generators == NULL) goto failed;
            for (i = 0; i < len; i++) {
                comprehension_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'GeneratorExp' node")) {
                    goto failed;
                }
                res = obj2ast_comprehension(state, tmp2, &val, "generators", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "GeneratorExp field \"generators\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(generators, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_GeneratorExp(elt, generators, lineno, col_offset,
                                   end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Await_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty value;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Await");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Await' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Await(value, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Yield_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty value;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            value = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Yield' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Yield(value, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->YieldFrom_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty value;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from YieldFrom");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'YieldFrom' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_YieldFrom(value, lineno, col_offset, end_lineno,
                                end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Compare_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty left;
        asdl_int_seq* ops;
        asdl_expr_seq* comparators;

        if (PyObject_GetOptionalAttr(obj, state->left, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"left\" missing from Compare");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Compare' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &left, "left", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->ops, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Compare field \"ops\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            ops = _Py_asdl_int_seq_new(len, arena);
            if (ops == NULL) goto failed;
            for (i = 0; i < len; i++) {
                cmpop_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Compare' node")) {
                    goto failed;
                }
                res = obj2ast_cmpop(state, tmp2, &val, "ops", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Compare field \"ops\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(ops, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->comparators, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Compare field \"comparators\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            comparators = _Py_asdl_expr_seq_new(len, arena);
            if (comparators == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Compare' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "comparators", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Compare field \"comparators\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(comparators, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Compare(left, ops, comparators, lineno, col_offset,
                              end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Call_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty func;
        asdl_expr_seq* args;
        asdl_keyword_seq* keywords;

        if (PyObject_GetOptionalAttr(obj, state->func, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"func\" missing from Call");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Call' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &func, "func", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->args, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Call field \"args\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            args = _Py_asdl_expr_seq_new(len, arena);
            if (args == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Call' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "args", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Call field \"args\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(args, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->keywords, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Call field \"keywords\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            keywords = _Py_asdl_keyword_seq_new(len, arena);
            if (keywords == NULL) goto failed;
            for (i = 0; i < len; i++) {
                keyword_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Call' node")) {
                    goto failed;
                }
                res = obj2ast_keyword(state, tmp2, &val, "keywords", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Call field \"keywords\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(keywords, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Call(func, args, keywords, lineno, col_offset,
                           end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->FormattedValue_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty value;
        int conversion;
        expr_ty format_spec;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from FormattedValue");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FormattedValue' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->conversion, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"conversion\" missing from FormattedValue");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FormattedValue' node")) {
                goto failed;
            }
            res = obj2ast_int(state, tmp, &conversion, "conversion", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->format_spec, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            format_spec = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FormattedValue' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &format_spec, "format_spec", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_FormattedValue(value, conversion, format_spec, lineno,
                                     col_offset, end_lineno, end_col_offset,
                                     arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Interpolation_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty value;
        constant str;
        int conversion;
        expr_ty format_spec;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Interpolation");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Interpolation' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->str, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"str\" missing from Interpolation");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Interpolation' node")) {
                goto failed;
            }
            res = obj2ast_constant(state, tmp, &str, "str", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->conversion, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"conversion\" missing from Interpolation");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Interpolation' node")) {
                goto failed;
            }
            res = obj2ast_int(state, tmp, &conversion, "conversion", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->format_spec, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            format_spec = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Interpolation' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &format_spec, "format_spec", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Interpolation(value, str, conversion, format_spec,
                                    lineno, col_offset, end_lineno,
                                    end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->JoinedStr_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_expr_seq* values;

        if (PyObject_GetOptionalAttr(obj, state->values, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "JoinedStr field \"values\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            values = _Py_asdl_expr_seq_new(len, arena);
            if (values == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'JoinedStr' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "values", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "JoinedStr field \"values\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(values, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_JoinedStr(values, lineno, col_offset, end_lineno,
                                end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->TemplateStr_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_expr_seq* values;

        if (PyObject_GetOptionalAttr(obj, state->values, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "TemplateStr field \"values\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            values = _Py_asdl_expr_seq_new(len, arena);
            if (values == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'TemplateStr' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "values", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "TemplateStr field \"values\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(values, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_TemplateStr(values, lineno, col_offset, end_lineno,
                                  end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Constant_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        constant value;
        string kind;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Constant");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Constant' node")) {
                goto failed;
            }
            res = obj2ast_constant(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->kind, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            kind = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Constant' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &kind, "kind", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Constant(value, kind, lineno, col_offset, end_lineno,
                               end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Attribute_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty value;
        identifier attr;
        expr_context_ty ctx;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Attribute");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Attribute' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->attr, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"attr\" missing from Attribute");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Attribute' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &attr, "attr", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->ctx, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Attribute");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Attribute' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, "ctx", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Attribute(value, attr, ctx, lineno, col_offset,
                                end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Subscript_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty value;
        expr_ty slice;
        expr_context_ty ctx;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Subscript");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Subscript' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->slice, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"slice\" missing from Subscript");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Subscript' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &slice, "slice", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->ctx, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Subscript");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Subscript' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, "ctx", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Subscript(value, slice, ctx, lineno, col_offset,
                                end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Starred_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty value;
        expr_context_ty ctx;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Starred");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Starred' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->ctx, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Starred");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Starred' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, "ctx", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Starred(value, ctx, lineno, col_offset, end_lineno,
                              end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Name_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        identifier id;
        expr_context_ty ctx;

        if (PyObject_GetOptionalAttr(obj, state->id, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"id\" missing from Name");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Name' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &id, "id", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->ctx, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Name");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Name' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, "ctx", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Name(id, ctx, lineno, col_offset, end_lineno,
                           end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->List_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_expr_seq* elts;
        expr_context_ty ctx;

        if (PyObject_GetOptionalAttr(obj, state->elts, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "List field \"elts\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            elts = _Py_asdl_expr_seq_new(len, arena);
            if (elts == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'List' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "elts", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "List field \"elts\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(elts, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->ctx, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from List");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'List' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, "ctx", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_List(elts, ctx, lineno, col_offset, end_lineno,
                           end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Tuple_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_expr_seq* elts;
        expr_context_ty ctx;

        if (PyObject_GetOptionalAttr(obj, state->elts, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Tuple field \"elts\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            elts = _Py_asdl_expr_seq_new(len, arena);
            if (elts == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Tuple' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "elts", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Tuple field \"elts\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(elts, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->ctx, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Tuple");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Tuple' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, "ctx", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Tuple(elts, ctx, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Slice_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty lower;
        expr_ty upper;
        expr_ty step;

        if (PyObject_GetOptionalAttr(obj, state->lower, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            lower = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Slice' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &lower, "lower", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->upper, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            upper = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Slice' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &upper, "upper", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->step, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            step = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Slice' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &step, "step", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Slice(lower, upper, step, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of expr, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_expr_context(struct ast_state *state, PyObject* obj, expr_context_ty*
                     out, const char* field, PyArena* arena)
{
    int isinstance;

    isinstance = PyObject_IsInstance(obj, state->Load_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Load;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Store_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Store;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Del_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Del;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of expr_context, but got %R", obj);
    return -1;
}

int
obj2ast_boolop(struct ast_state *state, PyObject* obj, boolop_ty* out, const
               char* field, PyArena* arena)
{
    int isinstance;

    isinstance = PyObject_IsInstance(obj, state->And_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = And;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Or_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Or;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of boolop, but got %R", obj);
    return -1;
}

int
obj2ast_operator(struct ast_state *state, PyObject* obj, operator_ty* out,
                 const char* field, PyArena* arena)
{
    int isinstance;

    isinstance = PyObject_IsInstance(obj, state->Add_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Add;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Sub_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Sub;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Mult_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Mult;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->MatMult_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = MatMult;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Div_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Div;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Mod_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Mod;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Pow_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Pow;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->LShift_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = LShift;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->RShift_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = RShift;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->BitOr_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = BitOr;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->BitXor_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = BitXor;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->BitAnd_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = BitAnd;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->FloorDiv_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = FloorDiv;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of operator, but got %R", obj);
    return -1;
}

int
obj2ast_unaryop(struct ast_state *state, PyObject* obj, unaryop_ty* out, const
                char* field, PyArena* arena)
{
    int isinstance;

    isinstance = PyObject_IsInstance(obj, state->Invert_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Invert;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Not_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Not;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->UAdd_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = UAdd;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->USub_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = USub;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of unaryop, but got %R", obj);
    return -1;
}

int
obj2ast_cmpop(struct ast_state *state, PyObject* obj, cmpop_ty* out, const
              char* field, PyArena* arena)
{
    int isinstance;

    isinstance = PyObject_IsInstance(obj, state->Eq_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Eq;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->NotEq_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = NotEq;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Lt_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Lt;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->LtE_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = LtE;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Gt_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Gt;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->GtE_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = GtE;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Is_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = Is;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->IsNot_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = IsNot;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->In_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = In;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->NotIn_type);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        *out = NotIn;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of cmpop, but got %R", obj);
    return -1;
}

int
obj2ast_comprehension(struct ast_state *state, PyObject* obj, comprehension_ty*
                      out, const char* field, PyArena* arena)
{
    PyObject* tmp = NULL;
    expr_ty target;
    expr_ty iter;
    asdl_expr_seq* ifs;
    int is_async;

    if (PyObject_GetOptionalAttr(obj, state->target, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from comprehension");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'comprehension' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &target, "target", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->iter, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"iter\" missing from comprehension");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'comprehension' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &iter, "iter", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->ifs, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return -1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "comprehension field \"ifs\" must be a list, not a %T", tmp);
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        ifs = _Py_asdl_expr_seq_new(len, arena);
        if (ifs == NULL) goto failed;
        for (i = 0; i < len; i++) {
            expr_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'comprehension' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp2, &val, "ifs", arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "comprehension field \"ifs\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(ifs, i, val);
        }
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->is_async, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"is_async\" missing from comprehension");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'comprehension' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &is_async, "is_async", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    *out = _PyAST_comprehension(target, iter, ifs, is_async, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_excepthandler(struct ast_state *state, PyObject* obj, excepthandler_ty*
                      out, const char* field, PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    tp = state->excepthandler_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (!isinstance && field != NULL) {
        PyErr_Format(PyExc_TypeError, "field '%s' was expecting node of type 'excepthandler', got '%T'", field, obj);
        return 1;
    }
    if (PyObject_GetOptionalAttr(obj, state->lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from excepthandler");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'excepthandler' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, "lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from excepthandler");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'excepthandler' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, "col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'excepthandler' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, "end_lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'excepthandler' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, "end_col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    tp = state->ExceptHandler_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty type;
        identifier name;
        asdl_stmt_seq* body;

        if (PyObject_GetOptionalAttr(obj, state->type, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ExceptHandler' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &type, "type", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->name, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            name = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ExceptHandler' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, "name", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ExceptHandler field \"body\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ExceptHandler' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, "body", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ExceptHandler field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_ExceptHandler(type, name, body, lineno, col_offset,
                                    end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of excepthandler, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_arguments(struct ast_state *state, PyObject* obj, arguments_ty* out,
                  const char* field, PyArena* arena)
{
    PyObject* tmp = NULL;
    asdl_arg_seq* posonlyargs;
    asdl_arg_seq* args;
    arg_ty vararg;
    asdl_arg_seq* kwonlyargs;
    asdl_expr_seq* kw_defaults;
    arg_ty kwarg;
    asdl_expr_seq* defaults;

    if (PyObject_GetOptionalAttr(obj, state->posonlyargs, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return -1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "arguments field \"posonlyargs\" must be a list, not a %T", tmp);
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        posonlyargs = _Py_asdl_arg_seq_new(len, arena);
        if (posonlyargs == NULL) goto failed;
        for (i = 0; i < len; i++) {
            arg_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
                goto failed;
            }
            res = obj2ast_arg(state, tmp2, &val, "posonlyargs", arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "arguments field \"posonlyargs\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(posonlyargs, i, val);
        }
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->args, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return -1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "arguments field \"args\" must be a list, not a %T", tmp);
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        args = _Py_asdl_arg_seq_new(len, arena);
        if (args == NULL) goto failed;
        for (i = 0; i < len; i++) {
            arg_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
                goto failed;
            }
            res = obj2ast_arg(state, tmp2, &val, "args", arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "arguments field \"args\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(args, i, val);
        }
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->vararg, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        vararg = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
            goto failed;
        }
        res = obj2ast_arg(state, tmp, &vararg, "vararg", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->kwonlyargs, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return -1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "arguments field \"kwonlyargs\" must be a list, not a %T", tmp);
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        kwonlyargs = _Py_asdl_arg_seq_new(len, arena);
        if (kwonlyargs == NULL) goto failed;
        for (i = 0; i < len; i++) {
            arg_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
                goto failed;
            }
            res = obj2ast_arg(state, tmp2, &val, "kwonlyargs", arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "arguments field \"kwonlyargs\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(kwonlyargs, i, val);
        }
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->kw_defaults, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return -1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "arguments field \"kw_defaults\" must be a list, not a %T", tmp);
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        kw_defaults = _Py_asdl_expr_seq_new(len, arena);
        if (kw_defaults == NULL) goto failed;
        for (i = 0; i < len; i++) {
            expr_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp2, &val, "kw_defaults", arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "arguments field \"kw_defaults\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(kw_defaults, i, val);
        }
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->kwarg, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        kwarg = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
            goto failed;
        }
        res = obj2ast_arg(state, tmp, &kwarg, "kwarg", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->defaults, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return -1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "arguments field \"defaults\" must be a list, not a %T", tmp);
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        defaults = _Py_asdl_expr_seq_new(len, arena);
        if (defaults == NULL) goto failed;
        for (i = 0; i < len; i++) {
            expr_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp2, &val, "defaults", arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "arguments field \"defaults\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(defaults, i, val);
        }
        Py_CLEAR(tmp);
    }
    *out = _PyAST_arguments(posonlyargs, args, vararg, kwonlyargs, kw_defaults,
                            kwarg, defaults, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_arg(struct ast_state *state, PyObject* obj, arg_ty* out, const char*
            field, PyArena* arena)
{
    PyObject* tmp = NULL;
    identifier arg;
    expr_ty annotation;
    string type_comment;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (PyObject_GetOptionalAttr(obj, state->arg, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"arg\" missing from arg");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_identifier(state, tmp, &arg, "arg", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->annotation, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        annotation = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &annotation, "annotation", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->type_comment, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        type_comment = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_string(state, tmp, &type_comment, "type_comment", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from arg");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, "lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from arg");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, "col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, "end_lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, "end_col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    *out = _PyAST_arg(arg, annotation, type_comment, lineno, col_offset,
                      end_lineno, end_col_offset, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_keyword(struct ast_state *state, PyObject* obj, keyword_ty* out, const
                char* field, PyArena* arena)
{
    PyObject* tmp = NULL;
    identifier arg;
    expr_ty value;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (PyObject_GetOptionalAttr(obj, state->arg, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        arg = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_identifier(state, tmp, &arg, "arg", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from keyword");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &value, "value", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from keyword");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, "lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from keyword");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, "col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, "end_lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, "end_col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    *out = _PyAST_keyword(arg, value, lineno, col_offset, end_lineno,
                          end_col_offset, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_alias(struct ast_state *state, PyObject* obj, alias_ty* out, const
              char* field, PyArena* arena)
{
    PyObject* tmp = NULL;
    identifier name;
    identifier asname;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (PyObject_GetOptionalAttr(obj, state->name, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from alias");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_identifier(state, tmp, &name, "name", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->asname, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        asname = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_identifier(state, tmp, &asname, "asname", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from alias");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, "lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from alias");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, "col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, "end_lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, "end_col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    *out = _PyAST_alias(name, asname, lineno, col_offset, end_lineno,
                        end_col_offset, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_withitem(struct ast_state *state, PyObject* obj, withitem_ty* out,
                 const char* field, PyArena* arena)
{
    PyObject* tmp = NULL;
    expr_ty context_expr;
    expr_ty optional_vars;

    if (PyObject_GetOptionalAttr(obj, state->context_expr, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"context_expr\" missing from withitem");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'withitem' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &context_expr, "context_expr", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->optional_vars, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        optional_vars = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'withitem' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &optional_vars, "optional_vars", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    *out = _PyAST_withitem(context_expr, optional_vars, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_match_case(struct ast_state *state, PyObject* obj, match_case_ty* out,
                   const char* field, PyArena* arena)
{
    PyObject* tmp = NULL;
    pattern_ty pattern;
    expr_ty guard;
    asdl_stmt_seq* body;

    if (PyObject_GetOptionalAttr(obj, state->pattern, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"pattern\" missing from match_case");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'match_case' node")) {
            goto failed;
        }
        res = obj2ast_pattern(state, tmp, &pattern, "pattern", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->guard, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        guard = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'match_case' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &guard, "guard", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->body, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return -1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "match_case field \"body\" must be a list, not a %T", tmp);
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        body = _Py_asdl_stmt_seq_new(len, arena);
        if (body == NULL) goto failed;
        for (i = 0; i < len; i++) {
            stmt_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'match_case' node")) {
                goto failed;
            }
            res = obj2ast_stmt(state, tmp2, &val, "body", arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "match_case field \"body\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(body, i, val);
        }
        Py_CLEAR(tmp);
    }
    *out = _PyAST_match_case(pattern, guard, body, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_pattern(struct ast_state *state, PyObject* obj, pattern_ty* out, const
                char* field, PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    tp = state->pattern_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (!isinstance && field != NULL) {
        PyErr_Format(PyExc_TypeError, "field '%s' was expecting node of type 'pattern', got '%T'", field, obj);
        return 1;
    }
    if (PyObject_GetOptionalAttr(obj, state->lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from pattern");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'pattern' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, "lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from pattern");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'pattern' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, "col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"end_lineno\" missing from pattern");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'pattern' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, "end_lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"end_col_offset\" missing from pattern");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'pattern' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, "end_col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    tp = state->MatchValue_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty value;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from MatchValue");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchValue' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchValue(value, lineno, col_offset, end_lineno,
                                 end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchSingleton_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        constant value;

        if (PyObject_GetOptionalAttr(obj, state->value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from MatchSingleton");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchSingleton' node")) {
                goto failed;
            }
            res = obj2ast_constant(state, tmp, &value, "value", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchSingleton(value, lineno, col_offset, end_lineno,
                                     end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchSequence_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_pattern_seq* patterns;

        if (PyObject_GetOptionalAttr(obj, state->patterns, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchSequence field \"patterns\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            patterns = _Py_asdl_pattern_seq_new(len, arena);
            if (patterns == NULL) goto failed;
            for (i = 0; i < len; i++) {
                pattern_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchSequence' node")) {
                    goto failed;
                }
                res = obj2ast_pattern(state, tmp2, &val, "patterns", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchSequence field \"patterns\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(patterns, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchSequence(patterns, lineno, col_offset, end_lineno,
                                    end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchMapping_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_expr_seq* keys;
        asdl_pattern_seq* patterns;
        identifier rest;

        if (PyObject_GetOptionalAttr(obj, state->keys, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchMapping field \"keys\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            keys = _Py_asdl_expr_seq_new(len, arena);
            if (keys == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchMapping' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, "keys", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchMapping field \"keys\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(keys, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->patterns, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchMapping field \"patterns\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            patterns = _Py_asdl_pattern_seq_new(len, arena);
            if (patterns == NULL) goto failed;
            for (i = 0; i < len; i++) {
                pattern_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchMapping' node")) {
                    goto failed;
                }
                res = obj2ast_pattern(state, tmp2, &val, "patterns", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchMapping field \"patterns\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(patterns, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->rest, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            rest = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchMapping' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &rest, "rest", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchMapping(keys, patterns, rest, lineno, col_offset,
                                   end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchClass_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        expr_ty cls;
        asdl_pattern_seq* patterns;
        asdl_identifier_seq* kwd_attrs;
        asdl_pattern_seq* kwd_patterns;

        if (PyObject_GetOptionalAttr(obj, state->cls, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"cls\" missing from MatchClass");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchClass' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &cls, "cls", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->patterns, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchClass field \"patterns\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            patterns = _Py_asdl_pattern_seq_new(len, arena);
            if (patterns == NULL) goto failed;
            for (i = 0; i < len; i++) {
                pattern_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchClass' node")) {
                    goto failed;
                }
                res = obj2ast_pattern(state, tmp2, &val, "patterns", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchClass field \"patterns\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(patterns, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->kwd_attrs, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchClass field \"kwd_attrs\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            kwd_attrs = _Py_asdl_identifier_seq_new(len, arena);
            if (kwd_attrs == NULL) goto failed;
            for (i = 0; i < len; i++) {
                identifier val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchClass' node")) {
                    goto failed;
                }
                res = obj2ast_identifier(state, tmp2, &val, "kwd_attrs", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchClass field \"kwd_attrs\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(kwd_attrs, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->kwd_patterns, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchClass field \"kwd_patterns\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            kwd_patterns = _Py_asdl_pattern_seq_new(len, arena);
            if (kwd_patterns == NULL) goto failed;
            for (i = 0; i < len; i++) {
                pattern_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchClass' node")) {
                    goto failed;
                }
                res = obj2ast_pattern(state, tmp2, &val, "kwd_patterns", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchClass field \"kwd_patterns\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(kwd_patterns, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchClass(cls, patterns, kwd_attrs, kwd_patterns,
                                 lineno, col_offset, end_lineno,
                                 end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchStar_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        identifier name;

        if (PyObject_GetOptionalAttr(obj, state->name, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            name = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchStar' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, "name", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchStar(name, lineno, col_offset, end_lineno,
                                end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchAs_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        pattern_ty pattern;
        identifier name;

        if (PyObject_GetOptionalAttr(obj, state->pattern, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            pattern = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchAs' node")) {
                goto failed;
            }
            res = obj2ast_pattern(state, tmp, &pattern, "pattern", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->name, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            name = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchAs' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, "name", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchAs(pattern, name, lineno, col_offset, end_lineno,
                              end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchOr_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        asdl_pattern_seq* patterns;

        if (PyObject_GetOptionalAttr(obj, state->patterns, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return -1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchOr field \"patterns\" must be a list, not a %T", tmp);
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            patterns = _Py_asdl_pattern_seq_new(len, arena);
            if (patterns == NULL) goto failed;
            for (i = 0; i < len; i++) {
                pattern_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchOr' node")) {
                    goto failed;
                }
                res = obj2ast_pattern(state, tmp2, &val, "patterns", arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchOr field \"patterns\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(patterns, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchOr(patterns, lineno, col_offset, end_lineno,
                              end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of pattern, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_type_ignore(struct ast_state *state, PyObject* obj, type_ignore_ty*
                    out, const char* field, PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    tp = state->type_ignore_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (!isinstance && field != NULL) {
        PyErr_Format(PyExc_TypeError, "field '%s' was expecting node of type 'type_ignore', got '%T'", field, obj);
        return 1;
    }
    tp = state->TypeIgnore_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        int lineno;
        string tag;

        if (PyObject_GetOptionalAttr(obj, state->lineno, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from TypeIgnore");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeIgnore' node")) {
                goto failed;
            }
            res = obj2ast_int(state, tmp, &lineno, "lineno", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->tag, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"tag\" missing from TypeIgnore");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeIgnore' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &tag, "tag", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_TypeIgnore(lineno, tag, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of type_ignore, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return -1;
}

int
obj2ast_type_param(struct ast_state *state, PyObject* obj, type_param_ty* out,
                   const char* field, PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    tp = state->type_param_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (!isinstance && field != NULL) {
        PyErr_Format(PyExc_TypeError, "field '%s' was expecting node of type 'type_param', got '%T'", field, obj);
        return 1;
    }
    if (PyObject_GetOptionalAttr(obj, state->lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from type_param");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'type_param' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, "lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from type_param");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'type_param' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, "col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_lineno, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"end_lineno\" missing from type_param");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'type_param' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, "end_lineno", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (PyObject_GetOptionalAttr(obj, state->end_col_offset, &tmp) < 0) {
        return -1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"end_col_offset\" missing from type_param");
        return -1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'type_param' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, "end_col_offset", arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    tp = state->TypeVar_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        identifier name;
        expr_ty bound;
        expr_ty default_value;

        if (PyObject_GetOptionalAttr(obj, state->name, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from TypeVar");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeVar' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, "name", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->bound, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            bound = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeVar' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &bound, "bound", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->default_value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            default_value = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeVar' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &default_value, "default_value",
                               arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_TypeVar(name, bound, default_value, lineno, col_offset,
                              end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->ParamSpec_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        identifier name;
        expr_ty default_value;

        if (PyObject_GetOptionalAttr(obj, state->name, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from ParamSpec");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ParamSpec' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, "name", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->default_value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            default_value = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ParamSpec' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &default_value, "default_value",
                               arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_ParamSpec(name, default_value, lineno, col_offset,
                                end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->TypeVarTuple_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return -1;
    }
    if (isinstance) {
        identifier name;
        expr_ty default_value;

        if (PyObject_GetOptionalAttr(obj, state->name, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from TypeVarTuple");
            return -1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeVarTuple' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, "name", arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (PyObject_GetOptionalAttr(obj, state->default_value, &tmp) < 0) {
            return -1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            default_value = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeVarTuple' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &default_value, "default_value",
                               arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_TypeVarTuple(name, default_value, lineno, col_offset,
                                   end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of type_param, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return -1;
}


/* Helper for checking if a node class is abstract in the tests. */
static PyObject *
ast_is_abstract(PyObject *Py_UNUSED(module), PyObject *cls) {
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return NULL;
    }
    int contains = PySet_Contains(state->abstract_types, cls);
    if (contains == -1) {
        return NULL;
    }
    else if (contains == 1) {
        Py_RETURN_TRUE;
    }
    Py_RETURN_FALSE;
}

static struct PyMethodDef astmodule_methods[] = {
    {"_is_abstract", ast_is_abstract, METH_O, NULL},
    {NULL}  /* Sentinel */
};

static int
astmodule_exec(PyObject *m)
{
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AST", state->AST_type) < 0) {
        return -1;
    }
    if (PyModule_AddIntMacro(m, PyCF_ALLOW_TOP_LEVEL_AWAIT) < 0) {
        return -1;
    }
    if (PyModule_AddIntMacro(m, PyCF_ONLY_AST) < 0) {
        return -1;
    }
    if (PyModule_AddIntMacro(m, PyCF_TYPE_COMMENTS) < 0) {
        return -1;
    }
    if (PyModule_AddIntMacro(m, PyCF_OPTIMIZED_AST) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "mod", state->mod_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Module", state->Module_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Interactive", state->Interactive_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Expression", state->Expression_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "FunctionType", state->FunctionType_type) < 0)
        {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "stmt", state->stmt_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "FunctionDef", state->FunctionDef_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AsyncFunctionDef",
        state->AsyncFunctionDef_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "ClassDef", state->ClassDef_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Return", state->Return_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Delete", state->Delete_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Assign", state->Assign_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "TypeAlias", state->TypeAlias_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AugAssign", state->AugAssign_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AnnAssign", state->AnnAssign_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "For", state->For_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AsyncFor", state->AsyncFor_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "While", state->While_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "If", state->If_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "With", state->With_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AsyncWith", state->AsyncWith_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Match", state->Match_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Raise", state->Raise_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Try", state->Try_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "TryStar", state->TryStar_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Assert", state->Assert_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Import", state->Import_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "ImportFrom", state->ImportFrom_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Global", state->Global_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Nonlocal", state->Nonlocal_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Expr", state->Expr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Pass", state->Pass_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Break", state->Break_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Continue", state->Continue_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "expr", state->expr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "BoolOp", state->BoolOp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "NamedExpr", state->NamedExpr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "BinOp", state->BinOp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "UnaryOp", state->UnaryOp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Lambda", state->Lambda_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "IfExp", state->IfExp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Dict", state->Dict_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Set", state->Set_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "ListComp", state->ListComp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "SetComp", state->SetComp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "DictComp", state->DictComp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "GeneratorExp", state->GeneratorExp_type) < 0)
        {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Await", state->Await_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Yield", state->Yield_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "YieldFrom", state->YieldFrom_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Compare", state->Compare_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Call", state->Call_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "FormattedValue", state->FormattedValue_type)
        < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Interpolation", state->Interpolation_type) <
        0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "JoinedStr", state->JoinedStr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "TemplateStr", state->TemplateStr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Constant", state->Constant_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Attribute", state->Attribute_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Subscript", state->Subscript_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Starred", state->Starred_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Name", state->Name_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "List", state->List_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Tuple", state->Tuple_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Slice", state->Slice_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "expr_context", state->expr_context_type) < 0)
        {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Load", state->Load_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Store", state->Store_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Del", state->Del_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "boolop", state->boolop_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "And", state->And_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Or", state->Or_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "operator", state->operator_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Add", state->Add_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Sub", state->Sub_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Mult", state->Mult_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatMult", state->MatMult_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Div", state->Div_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Mod", state->Mod_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Pow", state->Pow_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "LShift", state->LShift_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "RShift", state->RShift_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "BitOr", state->BitOr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "BitXor", state->BitXor_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "BitAnd", state->BitAnd_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "FloorDiv", state->FloorDiv_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "unaryop", state->unaryop_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Invert", state->Invert_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Not", state->Not_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "UAdd", state->UAdd_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "USub", state->USub_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "cmpop", state->cmpop_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Eq", state->Eq_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "NotEq", state->NotEq_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Lt", state->Lt_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "LtE", state->LtE_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Gt", state->Gt_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "GtE", state->GtE_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Is", state->Is_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "IsNot", state->IsNot_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "In", state->In_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "NotIn", state->NotIn_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "comprehension", state->comprehension_type) <
        0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "excepthandler", state->excepthandler_type) <
        0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "ExceptHandler", state->ExceptHandler_type) <
        0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "arguments", state->arguments_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "arg", state->arg_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "keyword", state->keyword_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "alias", state->alias_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "withitem", state->withitem_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "match_case", state->match_case_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "pattern", state->pattern_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchValue", state->MatchValue_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchSingleton", state->MatchSingleton_type)
        < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchSequence", state->MatchSequence_type) <
        0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchMapping", state->MatchMapping_type) < 0)
        {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchClass", state->MatchClass_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchStar", state->MatchStar_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchAs", state->MatchAs_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchOr", state->MatchOr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "type_ignore", state->type_ignore_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "TypeIgnore", state->TypeIgnore_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "type_param", state->type_param_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "TypeVar", state->TypeVar_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "ParamSpec", state->ParamSpec_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "TypeVarTuple", state->TypeVarTuple_type) < 0)
        {
        return -1;
    }
    return 0;
}

static PyModuleDef_Slot astmodule_slots[] = {
    _Py_ABI_SLOT,
    {Py_mod_exec, astmodule_exec},
    {Py_mod_multiple_interpreters, Py_MOD_PER_INTERPRETER_GIL_SUPPORTED},
    {Py_mod_gil, Py_MOD_GIL_NOT_USED},
    {0, NULL}
};

static struct PyModuleDef _astmodule = {
    PyModuleDef_HEAD_INIT,
    .m_name = "_ast",
    // The _ast module uses a per-interpreter state (PyInterpreterState.ast)
    .m_size = 0,
    .m_methods = astmodule_methods,
    .m_slots = astmodule_slots
};

PyMODINIT_FUNC
PyInit__ast(void)
{
    return PyModuleDef_Init(&_astmodule);
}


PyObject* PyAST_mod2obj(mod_ty t)
{
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return NULL;
    }
    PyObject *result = ast2obj_mod(state, t);

    return result;
}

/* mode is 0 for "exec", 1 for "eval", 2 for "single" and 3 for "func_type"
   input */
int PyAst_CheckMode(PyObject *ast, int mode)
{
    const char * const req_name[] = {"Module", "Expression", "Interactive",
                                     "FunctionType"};

    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return -1;
    }

    PyObject *req_type[4];
    req_type[0] = state->Module_type;
    req_type[1] = state->Expression_type;
    req_type[2] = state->Interactive_type;
    req_type[3] = state->FunctionType_type;

    assert(0 <= mode && mode <= 3);
    int isinstance = PyObject_IsInstance(ast, req_type[mode]);
    if (isinstance == -1) {
        return -1;
    }
    if (!isinstance) {
        PyErr_Format(PyExc_TypeError, "expected %s node, got %T",
                     req_name[mode], ast);
        return -1;
    }
    return 0;
}

mod_ty PyAST_obj2mod(PyObject* ast, PyArena* arena, int mode)
{
    if (PySys_Audit("compile", "OO", ast, Py_None) < 0) {
        return NULL;
    }

    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return NULL;
    }

    if (PyAst_CheckMode(ast, mode) < 0) {
        return NULL;
    }

    mod_ty res = NULL;
    if (obj2ast_mod(state, ast, &res, NULL, arena) != 0)
        return NULL;
    else
        return res;
}

int PyAST_Check(PyObject* obj)
{
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return -1;
    }
    return PyObject_IsInstance(obj, state->AST_type);
}



Coverage Report

Created: 2026-10-31 06:21