/src/php-src/Zend/zend_API.c

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/*
   +----------------------------------------------------------------------+
   | Zend Engine                                                          |
   +----------------------------------------------------------------------+
   | Copyright (c) Zend Technologies Ltd. (http://www.zend.com)           |
   +----------------------------------------------------------------------+
   | This source file is subject to version 2.00 of the Zend license,     |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.zend.com/license/2_00.txt.                                |
   | If you did not receive a copy of the Zend license and are unable to  |
   | obtain it through the world-wide-web, please send a note to          |
   | license@zend.com so we can mail you a copy immediately.              |
   +----------------------------------------------------------------------+
   | Authors: Andi Gutmans <andi@php.net>                                 |
   |          Zeev Suraski <zeev@php.net>                                 |
   |          Andrei Zmievski <andrei@php.net>                            |
   |          Dmitry Stogov <dmitry@php.net>                              |
   +----------------------------------------------------------------------+
*/

#include "zend.h"
#include "zend_execute.h"
#include "zend_API.h"
#include "zend_hash.h"
#include "zend_modules.h"
#include "zend_extensions.h"
#include "zend_constants.h"
#include "zend_interfaces.h"
#include "zend_exceptions.h"
#include "zend_closures.h"
#include "zend_inheritance.h"
#include "zend_ini.h"
#include "zend_enum.h"
#include "zend_object_handlers.h"
#include "zend_observer.h"

#include <stdarg.h>

/* these variables are true statics/globals, and have to be mutex'ed on every access */
ZEND_API HashTable module_registry;

ZEND_API bool zend_dl_use_deepbind = false;

static zend_module_entry **module_request_startup_handlers;
static zend_module_entry **module_request_shutdown_handlers;
static zend_module_entry **module_post_deactivate_handlers;
static zend_module_entry **modules_dl_loaded;

static zend_class_entry  **class_cleanup_handlers;

ZEND_API void zend_set_dl_use_deepbind(bool use_deepbind)
{
  zend_dl_use_deepbind = use_deepbind;
}

ZEND_API zend_result zend_get_parameters_array_ex(uint32_t param_count, zval *argument_array) /* {{{ */
{
  zval *param_ptr;
  uint32_t arg_count;

  param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1);
  arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data));

  if (param_count>arg_count) {
    return FAILURE;
  }

  while (param_count-->0) {
    ZVAL_COPY_VALUE(argument_array, param_ptr);
    argument_array++;
    param_ptr++;
  }

  return SUCCESS;
}
/* }}} */

ZEND_API zend_result zend_copy_parameters_array(uint32_t param_count, zval *argument_array) /* {{{ */
{
  zval *param_ptr;
  uint32_t arg_count;

  param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1);
  arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data));

  if (param_count>arg_count) {
    return FAILURE;
  }

  while (param_count-->0) {
    Z_TRY_ADDREF_P(param_ptr);
    zend_hash_next_index_insert_new(Z_ARRVAL_P(argument_array), param_ptr);
    param_ptr++;
  }

  return SUCCESS;
}
/* }}} */

ZEND_API ZEND_COLD void zend_wrong_param_count(void) /* {{{ */
{
  const char *space;
  const char *class_name = get_active_class_name(&space);

  zend_argument_count_error("Wrong parameter count for %s%s%s()", class_name, space, get_active_function_name());
}
/* }}} */

ZEND_API ZEND_COLD void zend_wrong_property_read(zval *object, zval *property)
{
  zend_string *tmp_property_name;
  zend_string *property_name = zval_get_tmp_string(property, &tmp_property_name);
  zend_error(E_WARNING, "Attempt to read property \"%s\" on %s", ZSTR_VAL(property_name), zend_zval_value_name(object));
  zend_tmp_string_release(tmp_property_name);
}

/* Argument parsing API -- andrei */
ZEND_API const char *zend_get_type_by_const(int type) /* {{{ */
{
  switch(type) {
    case IS_FALSE:
    case IS_TRUE:
    case _IS_BOOL:
      return "bool";
    case IS_LONG:
      return "int";
    case IS_DOUBLE:
      return "float";
    case IS_STRING:
      return "string";
    case IS_OBJECT:
      return "object";
    case IS_RESOURCE:
      return "resource";
    case IS_NULL:
      return "null";
    case IS_CALLABLE:
      return "callable";
    case IS_ITERABLE:
      return "iterable";
    case IS_ARRAY:
      return "array";
    case IS_VOID:
      return "void";
    case IS_MIXED:
      return "mixed";
    case _IS_NUMBER:
      return "int|float";
    EMPTY_SWITCH_DEFAULT_CASE()
  }
}
/* }}} */

ZEND_API const char *zend_zval_value_name(const zval *arg)
{
  ZVAL_DEREF(arg);

  if (Z_ISUNDEF_P(arg)) {
    return "null";
  }

  if (Z_TYPE_P(arg) == IS_OBJECT) {
    return ZSTR_VAL(Z_OBJCE_P(arg)->name);
  } else if (Z_TYPE_P(arg) == IS_FALSE) {
    return "false";
  } else if  (Z_TYPE_P(arg) == IS_TRUE) {
    return "true";
  }

  return zend_get_type_by_const(Z_TYPE_P(arg));
}

ZEND_API const char *zend_zval_type_name(const zval *arg)
{
  ZVAL_DEREF(arg);

  if (Z_ISUNDEF_P(arg)) {
    return "null";
  }

  if (Z_TYPE_P(arg) == IS_OBJECT) {
    return ZSTR_VAL(Z_OBJCE_P(arg)->name);
  }

  return zend_get_type_by_const(Z_TYPE_P(arg));
}

/* This API exists *only* for use in gettype().
 * For anything else, you likely want zend_zval_type_name(). */
ZEND_API zend_string *zend_zval_get_legacy_type(const zval *arg) /* {{{ */
{
  switch (Z_TYPE_P(arg)) {
    case IS_NULL:
      return ZSTR_KNOWN(ZEND_STR_NULL);
    case IS_FALSE:
    case IS_TRUE:
      return ZSTR_KNOWN(ZEND_STR_BOOLEAN);
    case IS_LONG:
      return ZSTR_KNOWN(ZEND_STR_INTEGER);
    case IS_DOUBLE:
      return ZSTR_KNOWN(ZEND_STR_DOUBLE);
    case IS_STRING:
      return ZSTR_KNOWN(ZEND_STR_STRING);
    case IS_ARRAY:
      return ZSTR_KNOWN(ZEND_STR_ARRAY);
    case IS_OBJECT:
      return ZSTR_KNOWN(ZEND_STR_OBJECT);
    case IS_RESOURCE:
      if (zend_rsrc_list_get_rsrc_type(Z_RES_P(arg))) {
        return ZSTR_KNOWN(ZEND_STR_RESOURCE);
      } else {
        return ZSTR_KNOWN(ZEND_STR_CLOSED_RESOURCE);
      }
    default:
      return NULL;
  }
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_none_error(void) /* {{{ */
{
  int num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
  zend_string *func_name = get_active_function_or_method_name();

  zend_argument_count_error("%s() expects exactly 0 arguments, %d given", ZSTR_VAL(func_name), num_args);

  zend_string_release(func_name);
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_count_error(uint32_t min_num_args, uint32_t max_num_args) /* {{{ */
{
  uint32_t num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
  zend_string *func_name = get_active_function_or_method_name();

  zend_argument_count_error(
    "%s() expects %s %d argument%s, %d given",
    ZSTR_VAL(func_name),
    min_num_args == max_num_args ? "exactly" : num_args < min_num_args ? "at least" : "at most",
    num_args < min_num_args ? min_num_args : max_num_args,
    (num_args < min_num_args ? min_num_args : max_num_args) == 1 ? "" : "s",
    num_args
  );

  zend_string_release(func_name);
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_error(int error_code, uint32_t num, char *name, zend_expected_type expected_type, zval *arg) /* {{{ */
{
  switch (error_code) {
    case ZPP_ERROR_WRONG_CALLBACK:
      zend_wrong_callback_error(num, name);
      break;
    case ZPP_ERROR_WRONG_CALLBACK_OR_NULL:
      zend_wrong_callback_or_null_error(num, name);
      break;
    case ZPP_ERROR_WRONG_CLASS:
      zend_wrong_parameter_class_error(num, name, arg);
      break;
    case ZPP_ERROR_WRONG_CLASS_OR_NULL:
      zend_wrong_parameter_class_or_null_error(num, name, arg);
      break;
    case ZPP_ERROR_WRONG_CLASS_OR_STRING:
      zend_wrong_parameter_class_or_string_error(num, name, arg);
      break;
    case ZPP_ERROR_WRONG_CLASS_OR_STRING_OR_NULL:
      zend_wrong_parameter_class_or_string_or_null_error(num, name, arg);
      break;
    case ZPP_ERROR_WRONG_CLASS_OR_LONG:
      zend_wrong_parameter_class_or_long_error(num, name, arg);
      break;
    case ZPP_ERROR_WRONG_CLASS_OR_LONG_OR_NULL:
      zend_wrong_parameter_class_or_long_or_null_error(num, name, arg);
      break;
    case ZPP_ERROR_WRONG_ARG:
      zend_wrong_parameter_type_error(num, expected_type, arg);
      break;
    case ZPP_ERROR_UNEXPECTED_EXTRA_NAMED:
      zend_unexpected_extra_named_error();
      break;
    case ZPP_ERROR_FAILURE:
      ZEND_ASSERT(EG(exception) && "Should have produced an error already");
      break;
    EMPTY_SWITCH_DEFAULT_CASE()
  }
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_type_error(uint32_t num, zend_expected_type expected_type, zval *arg) /* {{{ */
{
  static const char * const expected_error[] = {
    Z_EXPECTED_TYPES(Z_EXPECTED_TYPE_STR)
    NULL
  };

  if (EG(exception)) {
    return;
  }

  if ((expected_type == Z_EXPECTED_PATH || expected_type == Z_EXPECTED_PATH_OR_NULL)
      && Z_TYPE_P(arg) == IS_STRING) {
    zend_argument_value_error(num, "must not contain any null bytes");
    return;
  }

  zend_argument_type_error(num, "must be %s, %s given", expected_error[expected_type], zend_zval_value_name(arg));
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
  if (EG(exception)) {
    return;
  }

  zend_argument_type_error(num, "must be of type %s, %s given", name, zend_zval_value_name(arg));
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
  if (EG(exception)) {
    return;
  }

  zend_argument_type_error(num, "must be of type ?%s, %s given", name, zend_zval_value_name(arg));
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_long_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
  if (EG(exception)) {
    return;
  }

  zend_argument_type_error(num, "must be of type %s|int, %s given", name, zend_zval_value_name(arg));
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_long_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
  if (EG(exception)) {
    return;
  }

  zend_argument_type_error(num, "must be of type %s|int|null, %s given", name, zend_zval_value_name(arg));
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_string_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
  if (EG(exception)) {
    return;
  }

  zend_argument_type_error(num, "must be of type %s|string, %s given", name, zend_zval_value_name(arg));
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_string_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
  if (EG(exception)) {
    return;
  }

  zend_argument_type_error(num, "must be of type %s|string|null, %s given", name, zend_zval_value_name(arg));
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_error(uint32_t num, char *error) /* {{{ */
{
  if (!EG(exception)) {
    zend_argument_type_error(num, "must be a valid callback, %s", error);
  }
  efree(error);
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_or_null_error(uint32_t num, char *error) /* {{{ */
{
  if (!EG(exception)) {
    zend_argument_type_error(num, "must be a valid callback or null, %s", error);
  }
  efree(error);
}
/* }}} */

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_unexpected_extra_named_error(void)
{
  const char *space;
  const char *class_name = get_active_class_name(&space);
  zend_argument_count_error("%s%s%s() does not accept unknown named parameters",
    class_name, space, get_active_function_name());
}

ZEND_API ZEND_COLD void ZEND_FASTCALL zend_argument_error_variadic(zend_class_entry *error_ce, uint32_t arg_num, const char *format, va_list va) /* {{{ */
{
  zend_string *func_name;
  const char *arg_name;
  char *message = NULL;
  if (EG(exception)) {
    return;
  }

  func_name = get_active_function_or_method_name();
  arg_name = get_active_function_arg_name(arg_num);

  zend_vspprintf(&message, 0, format, va);
  zend_throw_error(error_ce, "%s(): Argument #%d%s%s%s %s",
    ZSTR_VAL(func_name), arg_num,
    arg_name ? " ($" : "", arg_name ? arg_name : "", arg_name ? ")" : "", message
  );
  efree(message);
  zend_string_release(func_name);
}
/* }}} */

ZEND_API ZEND_COLD void zend_argument_error(zend_class_entry *error_ce, uint32_t arg_num, const char *format, ...) /* {{{ */
{
  va_list va;

  va_start(va, format);
  zend_argument_error_variadic(error_ce, arg_num, format, va);
  va_end(va);
}
/* }}} */

ZEND_API ZEND_COLD void zend_argument_type_error(uint32_t arg_num, const char *format, ...) /* {{{ */
{
  va_list va;

  va_start(va, format);
  zend_argument_error_variadic(zend_ce_type_error, arg_num, format, va);
  va_end(va);
}
/* }}} */

ZEND_API ZEND_COLD void zend_argument_value_error(uint32_t arg_num, const char *format, ...) /* {{{ */
{
  va_list va;

  va_start(va, format);
  zend_argument_error_variadic(zend_ce_value_error, arg_num, format, va);
  va_end(va);
}
/* }}} */

ZEND_API ZEND_COLD void zend_argument_must_not_be_empty_error(uint32_t arg_num)
{
  zend_argument_value_error(arg_num, "must not be empty");
}

ZEND_API ZEND_COLD void zend_class_redeclaration_error_ex(int type, zend_string *new_name, zend_class_entry *old_ce)
{
  if (old_ce->type == ZEND_INTERNAL_CLASS) {
    zend_error(type, "Cannot redeclare %s %s",
      zend_get_object_type(old_ce),
      ZSTR_VAL(new_name));
  } else {
    zend_error(type, "Cannot redeclare %s %s (previously declared in %s:%d)",
      zend_get_object_type(old_ce),
      ZSTR_VAL(new_name),
      ZSTR_VAL(old_ce->info.user.filename),
      old_ce->info.user.line_start);
  }
}

ZEND_API ZEND_COLD void zend_class_redeclaration_error(int type, zend_class_entry *old_ce)
{
  zend_class_redeclaration_error_ex(type, old_ce->name, old_ce);
}

ZEND_API bool ZEND_FASTCALL zend_parse_arg_class(zval *arg, zend_class_entry **pce, uint32_t num, bool check_null) /* {{{ */
{
  zend_class_entry *ce_base = *pce;

  if (check_null && Z_TYPE_P(arg) == IS_NULL) {
    *pce = NULL;
    return 1;
  }
  if (!try_convert_to_string(arg)) {
    *pce = NULL;
    return 0;
  }

  *pce = zend_lookup_class(Z_STR_P(arg));
  if (ce_base) {
    if ((!*pce || !instanceof_function(*pce, ce_base))) {
      zend_argument_type_error(num, "must be a class name derived from %s, %s given", ZSTR_VAL(ce_base->name), Z_STRVAL_P(arg));
      *pce = NULL;
      return 0;
    }
  }
  if (!*pce) {
    zend_argument_type_error(num, "must be a valid class name, %s given", Z_STRVAL_P(arg));
    return 0;
  }
  return 1;
}
/* }}} */

static ZEND_COLD bool zend_null_arg_deprecated(const char *fallback_type, uint32_t arg_num) {
  zend_function *func = zend_active_function();
  ZEND_ASSERT(arg_num > 0);
  uint32_t arg_offset = arg_num - 1;
  if (arg_offset >= func->common.num_args) {
    ZEND_ASSERT(func->common.fn_flags & ZEND_ACC_VARIADIC);
    arg_offset = func->common.num_args;
  }

  zend_arg_info *arg_info = &func->common.arg_info[arg_offset];
  zend_string *func_name = get_active_function_or_method_name();
  const char *arg_name = get_active_function_arg_name(arg_num);

  /* If no type is specified in arginfo, use the specified fallback_type determined through
   * zend_parse_parameters instead. */
  zend_string *type_str = zend_type_to_string(arg_info->type);
  const char *type = type_str ? ZSTR_VAL(type_str) : fallback_type;
  zend_error(E_DEPRECATED,
    "%s(): Passing null to parameter #%" PRIu32 "%s%s%s of type %s is deprecated",
    ZSTR_VAL(func_name), arg_num,
    arg_name ? " ($" : "", arg_name ? arg_name : "", arg_name ? ")" : "",
    type);
  zend_string_release(func_name);
  if (type_str) {
    zend_string_release(type_str);
  }
  return !EG(exception);
}

ZEND_API bool ZEND_FASTCALL zend_parse_arg_bool_weak(const zval *arg, bool *dest, uint32_t arg_num) /* {{{ */
{
  if (EXPECTED(Z_TYPE_P(arg) <= IS_STRING)) {
    if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("bool", arg_num)) {
      return 0;
    }
    *dest = zend_is_true(arg);
  } else {
    return 0;
  }
  return 1;
}
/* }}} */

ZEND_API bool ZEND_FASTCALL zend_parse_arg_bool_slow(const zval *arg, bool *dest, uint32_t arg_num) /* {{{ */
{
  if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
    return 0;
  }
  return zend_parse_arg_bool_weak(arg, dest, arg_num);
}
/* }}} */

ZEND_API bool ZEND_FASTCALL zend_flf_parse_arg_bool_slow(const zval *arg, bool *dest, uint32_t arg_num)
{
  if (UNEXPECTED(ZEND_FLF_ARG_USES_STRICT_TYPES())) {
    return 0;
  }
  return zend_parse_arg_bool_weak(arg, dest, arg_num);
}

ZEND_API bool ZEND_FASTCALL zend_parse_arg_long_weak(const zval *arg, zend_long *dest, uint32_t arg_num) /* {{{ */
{
  if (EXPECTED(Z_TYPE_P(arg) == IS_DOUBLE)) {
    if (UNEXPECTED(zend_isnan(Z_DVAL_P(arg)))) {
      return 0;
    }
    if (UNEXPECTED(!ZEND_DOUBLE_FITS_LONG(Z_DVAL_P(arg)))) {
      return 0;
    } else {
      zend_long lval = zend_dval_to_lval(Z_DVAL_P(arg));
      if (UNEXPECTED(!zend_is_long_compatible(Z_DVAL_P(arg), lval))) {
        /* Check arg_num is not (uint32_t)-1, as otherwise its called by
         * zend_verify_weak_scalar_type_hint_no_sideeffect() */
        if (arg_num != (uint32_t)-1) {
          zend_incompatible_double_to_long_error(Z_DVAL_P(arg));
        }
        if (UNEXPECTED(EG(exception))) {
          return 0;
        }
      }
      *dest = lval;
    }
  } else if (EXPECTED(Z_TYPE_P(arg) == IS_STRING)) {
    double d;
    uint8_t type;

    if (UNEXPECTED((type = is_numeric_str_function(Z_STR_P(arg), dest, &d)) != IS_LONG)) {
      if (EXPECTED(type != 0)) {
        zend_long lval;
        if (UNEXPECTED(zend_isnan(d))) {
          return 0;
        }
        if (UNEXPECTED(!ZEND_DOUBLE_FITS_LONG(d))) {
          return 0;
        }

        lval = zend_dval_to_lval(d);
        /* This only checks for a fractional part as if doesn't fit it already throws a TypeError */
        if (UNEXPECTED(!zend_is_long_compatible(d, lval))) {
          /* Check arg_num is not (uint32_t)-1, as otherwise its called by
           * zend_verify_weak_scalar_type_hint_no_sideeffect() */
          if (arg_num != (uint32_t)-1) {
            zend_incompatible_string_to_long_error(Z_STR_P(arg));
          }
          if (UNEXPECTED(EG(exception))) {
            return 0;
          }
        }
        *dest = lval;
      } else {
        return 0;
      }
    }
    if (UNEXPECTED(EG(exception))) {
      return 0;
    }
  } else if (EXPECTED(Z_TYPE_P(arg) < IS_TRUE)) {
    if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("int", arg_num)) {
      return 0;
    }
    *dest = 0;
  } else if (EXPECTED(Z_TYPE_P(arg) == IS_TRUE)) {
    *dest = 1;
  } else {
    return 0;
  }
  return 1;
}
/* }}} */

ZEND_API bool ZEND_FASTCALL zend_parse_arg_long_slow(const zval *arg, zend_long *dest, uint32_t arg_num) /* {{{ */
{
  if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
    return 0;
  }
  return zend_parse_arg_long_weak(arg, dest, arg_num);
}
/* }}} */

ZEND_API bool ZEND_FASTCALL zend_flf_parse_arg_long_slow(const zval *arg, zend_long *dest, uint32_t arg_num)
{
  if (UNEXPECTED(ZEND_FLF_ARG_USES_STRICT_TYPES())) {
    return 0;
  }
  return zend_parse_arg_long_weak(arg, dest, arg_num);
}

ZEND_API bool ZEND_FASTCALL zend_parse_arg_double_weak(const zval *arg, double *dest, uint32_t arg_num) /* {{{ */
{
  if (EXPECTED(Z_TYPE_P(arg) == IS_LONG)) {
    *dest = (double)Z_LVAL_P(arg);
  } else if (EXPECTED(Z_TYPE_P(arg) == IS_STRING)) {
    zend_long l;
    uint8_t type;

    if (UNEXPECTED((type = is_numeric_str_function(Z_STR_P(arg), &l, dest)) != IS_DOUBLE)) {
      if (EXPECTED(type != 0)) {
        *dest = (double)(l);
      } else {
        return 0;
      }
    }
    if (UNEXPECTED(EG(exception))) {
      return 0;
    }
  } else if (EXPECTED(Z_TYPE_P(arg) < IS_TRUE)) {
    if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("float", arg_num)) {
      return 0;
    }
    *dest = 0.0;
  } else if (EXPECTED(Z_TYPE_P(arg) == IS_TRUE)) {
    *dest = 1.0;
  } else {
    return 0;
  }
  return 1;
}
/* }}} */

ZEND_API bool ZEND_FASTCALL zend_parse_arg_double_slow(const zval *arg, double *dest, uint32_t arg_num) /* {{{ */
{
  if (EXPECTED(Z_TYPE_P(arg) == IS_LONG)) {
    /* SSTH Exception: IS_LONG may be accepted instead as IS_DOUBLE */
    *dest = (double)Z_LVAL_P(arg);
  } else if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
    return 0;
  }
  return zend_parse_arg_double_weak(arg, dest, arg_num);
}
/* }}} */

ZEND_API bool ZEND_FASTCALL zend_parse_arg_number_slow(zval *arg, zval **dest, uint32_t arg_num) /* {{{ */
{
  if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
    return 0;
  }
  if (Z_TYPE_P(arg) == IS_STRING) {
    zend_string *str = Z_STR_P(arg);
    zend_long lval;
    double dval;
    uint8_t type = is_numeric_str_function(str, &lval, &dval);
    if (type == IS_LONG) {
      ZVAL_LONG(arg, lval);
    } else if (type == IS_DOUBLE) {
      ZVAL_DOUBLE(arg, dval);
    } else {
      return 0;
    }
    zend_string_release(str);
  } else if (Z_TYPE_P(arg) < IS_TRUE) {
    if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("int|float", arg_num)) {
      return 0;
    }
    ZVAL_LONG(arg, 0);
  } else if (Z_TYPE_P(arg) == IS_TRUE) {
    ZVAL_LONG(arg, 1);
  } else {
    return 0;
  }
  *dest = arg;
  return 1;
}
/* }}} */


ZEND_API bool ZEND_FASTCALL zend_parse_arg_number_or_str_slow(zval *arg, zval **dest, uint32_t arg_num) /* {{{ */
{
  if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
    return false;
  }
  if (Z_TYPE_P(arg) < IS_TRUE) {
    if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("string|int|float", arg_num)) {
      return false;
    }
    ZVAL_LONG(arg, 0);
  } else if (Z_TYPE_P(arg) == IS_TRUE) {
    ZVAL_LONG(arg, 1);
  } else if (UNEXPECTED(Z_TYPE_P(arg) == IS_OBJECT)) {
    zend_object *zobj = Z_OBJ_P(arg);
    zval obj;
    if (zobj->handlers->cast_object(zobj, &obj, IS_STRING) == SUCCESS) {
      OBJ_RELEASE(zobj);
      ZVAL_COPY_VALUE(arg, &obj);
      *dest = arg;
      return true;
    }
    return false;
  } else {
    return false;
  }
  *dest = arg;
  return true;
}

ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_weak(zval *arg, zend_string **dest, uint32_t arg_num) /* {{{ */
{
  if (EXPECTED(Z_TYPE_P(arg) < IS_STRING)) {
    if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("string", arg_num)) {
      return 0;
    }
    convert_to_string(arg);
    *dest = Z_STR_P(arg);
  } else if (UNEXPECTED(Z_TYPE_P(arg) == IS_OBJECT)) {
    zend_object *zobj = Z_OBJ_P(arg);
    zval obj;
    if (zobj->handlers->cast_object(zobj, &obj, IS_STRING) == SUCCESS) {
      OBJ_RELEASE(zobj);
      ZVAL_COPY_VALUE(arg, &obj);
      *dest = Z_STR_P(arg);
      return 1;
    }
    return 0;
  } else {
    return 0;
  }
  return 1;
}
/* }}} */

ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_slow(zval *arg, zend_string **dest, uint32_t arg_num) /* {{{ */
{
  if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
    return 0;
  }
  return zend_parse_arg_str_weak(arg, dest, arg_num);
}
/* }}} */

ZEND_API bool ZEND_FASTCALL zend_flf_parse_arg_str_slow(zval *arg, zend_string **dest, uint32_t arg_num)
{
  if (UNEXPECTED(ZEND_FLF_ARG_USES_STRICT_TYPES())) {
    return 0;
  }
  return zend_parse_arg_str_weak(arg, dest, arg_num);
}

ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_or_long_slow(zval *arg, zend_string **dest_str, zend_long *dest_long, uint32_t arg_num) /* {{{ */
{
  if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
    return 0;
  }
  if (zend_parse_arg_long_weak(arg, dest_long, arg_num)) {
    *dest_str = NULL;
    return 1;
  } else if (zend_parse_arg_str_weak(arg, dest_str, arg_num)) {
    *dest_long = 0;
    return 1;
  } else {
    return 0;
  }
}
/* }}} */

static const char *zend_parse_arg_impl(zval *arg, va_list *va, const char **spec, char **error, uint32_t arg_num) /* {{{ */
{
  const char *spec_walk = *spec;
  char c = *spec_walk++;
  bool check_null = 0;
  bool separate = 0;
  zval *real_arg = arg;

  /* scan through modifiers */
  ZVAL_DEREF(arg);
  while (1) {
    if (*spec_walk == '/') {
      SEPARATE_ZVAL_NOREF(arg);
      real_arg = arg;
      separate = 1;
    } else if (*spec_walk == '!') {
      check_null = 1;
    } else {
      break;
    }
    spec_walk++;
  }

  switch (c) {
    case 'l':
      {
        zend_long *p = va_arg(*va, zend_long *);
        bool *is_null = NULL;

        if (check_null) {
          is_null = va_arg(*va, bool *);
        }

        if (!zend_parse_arg_long(arg, p, is_null, check_null, arg_num)) {
          return check_null ? "?int" : "int";
        }
      }
      break;

    case 'd':
      {
        double *p = va_arg(*va, double *);
        bool *is_null = NULL;

        if (check_null) {
          is_null = va_arg(*va, bool *);
        }

        if (!zend_parse_arg_double(arg, p, is_null, check_null, arg_num)) {
          return check_null ? "?float" : "float";
        }
      }
      break;

    case 'n':
      {
        zval **p = va_arg(*va, zval **);

        if (!zend_parse_arg_number(arg, p, check_null, arg_num)) {
          return check_null ? "int|float|null" : "int|float";
        }
      }
      break;

    case 's':
      {
        char **p = va_arg(*va, char **);
        size_t *pl = va_arg(*va, size_t *);
        if (!zend_parse_arg_string(arg, p, pl, check_null, arg_num)) {
          return check_null ? "?string" : "string";
        }
      }
      break;

    case 'p':
      {
        char **p = va_arg(*va, char **);
        size_t *pl = va_arg(*va, size_t *);
        if (!zend_parse_arg_path(arg, p, pl, check_null, arg_num)) {
          if (Z_TYPE_P(arg) == IS_STRING) {
            zend_spprintf(error, 0, "must not contain any null bytes");
            return "";
          } else {
            return check_null ? "?string" : "string";
          }
        }
      }
      break;

    case 'P':
      {
        zend_string **str = va_arg(*va, zend_string **);
        if (!zend_parse_arg_path_str(arg, str, check_null, arg_num)) {
          if (Z_TYPE_P(arg) == IS_STRING) {
            zend_spprintf(error, 0, "must not contain any null bytes");
            return "";
          } else {
            return check_null ? "?string" : "string";
          }
        }
      }
      break;

    case 'S':
      {
        zend_string **str = va_arg(*va, zend_string **);
        if (!zend_parse_arg_str(arg, str, check_null, arg_num)) {
          return check_null ? "?string" : "string";
        }
      }
      break;

    case 'b':
      {
        bool *p = va_arg(*va, bool *);
        bool *is_null = NULL;

        if (check_null) {
          is_null = va_arg(*va, bool *);
        }

        if (!zend_parse_arg_bool(arg, p, is_null, check_null, arg_num)) {
          return check_null ? "?bool" : "bool";
        }
      }
      break;

    case 'r':
      {
        zval **p = va_arg(*va, zval **);

        if (!zend_parse_arg_resource(arg, p, check_null)) {
          return check_null ? "resource or null" : "resource";
        }
      }
      break;

    case 'A':
    case 'a':
      {
        zval **p = va_arg(*va, zval **);

        if (!zend_parse_arg_array(arg, p, check_null, c == 'A')) {
          return check_null ? "?array" : "array";
        }
      }
      break;

    case 'H':
    case 'h':
      {
        HashTable **p = va_arg(*va, HashTable **);

        if (!zend_parse_arg_array_ht(arg, p, check_null, c == 'H', separate)) {
          return check_null ? "?array" : "array";
        }
      }
      break;

    case 'o':
      {
        zval **p = va_arg(*va, zval **);

        if (!zend_parse_arg_object(arg, p, NULL, check_null)) {
          return check_null ? "?object" : "object";
        }
      }
      break;

    case 'O':
      {
        zval **p = va_arg(*va, zval **);
        zend_class_entry *ce = va_arg(*va, zend_class_entry *);

        if (!zend_parse_arg_object(arg, p, ce, check_null)) {
          if (ce) {
            if (check_null) {
              zend_spprintf(error, 0, "must be of type ?%s, %s given", ZSTR_VAL(ce->name), zend_zval_value_name(arg));
              return "";
            } else {
              return ZSTR_VAL(ce->name);
            }
          } else {
            return check_null ? "?object" : "object";
          }
        }
      }
      break;

    case 'C':
      {
        zend_class_entry *lookup, **pce = va_arg(*va, zend_class_entry **);
        zend_class_entry *ce_base = *pce;

        if (check_null && Z_TYPE_P(arg) == IS_NULL) {
          *pce = NULL;
          break;
        }
        if (!try_convert_to_string(arg)) {
          *pce = NULL;
          return ""; /* try_convert_to_string() throws an exception */
        }

        if ((lookup = zend_lookup_class(Z_STR_P(arg))) == NULL) {
          *pce = NULL;
        } else {
          *pce = lookup;
        }
        if (ce_base) {
          if ((!*pce || !instanceof_function(*pce, ce_base))) {
            zend_spprintf(error, 0, "must be a class name derived from %s%s, %s given",
              ZSTR_VAL(ce_base->name), check_null ? " or null" : "", Z_STRVAL_P(arg));
            *pce = NULL;
            return "";
          }
        }
        if (!*pce) {
          zend_spprintf(error, 0, "must be a valid class name%s, %s given",
            check_null ? " or null" : "", Z_STRVAL_P(arg));
          return "";
        }
        break;

      }
      break;

    case 'F':
    case 'f':
      {
        zend_fcall_info *fci = va_arg(*va, zend_fcall_info *);
        zend_fcall_info_cache *fcc = va_arg(*va, zend_fcall_info_cache *);
        char *is_callable_error = NULL;

        if (check_null && Z_TYPE_P(arg) == IS_NULL) {
          fci->size = 0;
          fcc->function_handler = 0;
          break;
        }

        if (zend_fcall_info_init(arg, 0, fci, fcc, NULL, &is_callable_error) == SUCCESS) {
          ZEND_ASSERT(!is_callable_error);
          if (c == 'f') {
            /* Release call trampolines: The function may not get called, in which case
             * the trampoline will leak. Force it to be refetched during
             * zend_call_function instead. */
            zend_release_fcall_info_cache(fcc);
          }
          break;
        }

        if (is_callable_error) {
          zend_spprintf(error, 0, "must be a valid callback%s, %s", check_null ? " or null" : "", is_callable_error);
          efree(is_callable_error);
          return "";
        } else {
          return check_null ? "a valid callback or null" : "a valid callback";
        }
      }

    case 'z':
      {
        zval **p = va_arg(*va, zval **);

        zend_parse_arg_zval_deref(real_arg, p, check_null);
      }
      break;

    case 'Z': /* replace with 'z' */
    case 'L': /* replace with 'l' */
      ZEND_ASSERT(0 && "ZPP modifier no longer supported");
      ZEND_FALLTHROUGH;
    default:
      return "unknown";
  }

  *spec = spec_walk;

  return NULL;
}
/* }}} */

static zend_result zend_parse_arg(uint32_t arg_num, zval *arg, va_list *va, const char **spec, int flags) /* {{{ */
{
  const char *expected_type = NULL;
  char *error = NULL;

  expected_type = zend_parse_arg_impl(arg, va, spec, &error, arg_num);
  if (expected_type) {
    if (EG(exception)) {
      return FAILURE;
    }
    if (!(flags & ZEND_PARSE_PARAMS_QUIET) && (*expected_type || error)) {
      if (error) {
        if (strcmp(error, "must not contain any null bytes") == 0) {
          zend_argument_value_error(arg_num, "%s", error);
        } else {
          zend_argument_type_error(arg_num, "%s", error);
        }
        efree(error);
      } else {
        zend_argument_type_error(arg_num, "must be of type %s, %s given", expected_type, zend_zval_value_name(arg));
      }
    } else if (error) {
      efree(error);
    }

    return FAILURE;
  }

  return SUCCESS;
}
/* }}} */

ZEND_API zend_result zend_parse_parameter(int flags, uint32_t arg_num, zval *arg, const char *spec, ...)
{
  va_list va;
  zend_result ret;

  va_start(va, spec);
  ret = zend_parse_arg(arg_num, arg, &va, &spec, flags);
  va_end(va);

  return ret;
}

static ZEND_COLD void zend_parse_parameters_debug_error(const char *msg) {
  zend_function *active_function = EG(current_execute_data)->func;
  const char *class_name = active_function->common.scope
    ? ZSTR_VAL(active_function->common.scope->name) : "";
  zend_error_noreturn(E_CORE_ERROR, "%s%s%s(): %s",
    class_name, class_name[0] ? "::" : "",
    ZSTR_VAL(active_function->common.function_name), msg);
}

static zend_result zend_parse_va_args(uint32_t num_args, const char *type_spec, va_list *va, int flags) /* {{{ */
{
  const  char *spec_walk;
  char c;
  uint32_t i;
  uint32_t min_num_args = 0;
  uint32_t max_num_args = 0;
  uint32_t post_varargs = 0;
  zval *arg;
  bool have_varargs = 0;
  bool have_optional_args = 0;
  zval **varargs = NULL;
  uint32_t *n_varargs = NULL;

  for (spec_walk = type_spec; *spec_walk; spec_walk++) {
    c = *spec_walk;
    switch (c) {
      case 'l': case 'd':
      case 's': case 'b':
      case 'r': case 'a':
      case 'o': case 'O':
      case 'z': case 'Z':
      case 'C': case 'h':
      case 'f': case 'F': case 'A':
      case 'H': case 'p':
      case 'S': case 'P':
      case 'L': case 'n':
        max_num_args++;
        break;

      case '|':
        min_num_args = max_num_args;
        have_optional_args = 1;
        break;

      case '/':
      case '!':
        /* Pass */
        break;

      case '*':
      case '+':
        if (have_varargs) {
          zend_parse_parameters_debug_error(
            "only one varargs specifier (* or +) is permitted");
          return FAILURE;
        }
        have_varargs = 1;
        /* we expect at least one parameter in varargs */
        if (c == '+') {
          max_num_args++;
        }
        /* mark the beginning of varargs */
        post_varargs = max_num_args;

        if (ZEND_CALL_INFO(EG(current_execute_data)) & ZEND_CALL_HAS_EXTRA_NAMED_PARAMS) {
          zend_unexpected_extra_named_error();
          return FAILURE;
        }
        break;

      default:
        zend_parse_parameters_debug_error("bad type specifier while parsing parameters");
        return FAILURE;
    }
  }

  /* with no optional arguments the minimum number of arguments must be the same as the maximum */
  if (!have_optional_args) {
    min_num_args = max_num_args;
  }

  if (have_varargs) {
    /* calculate how many required args are at the end of the specifier list */
    post_varargs = max_num_args - post_varargs;
    max_num_args = UINT32_MAX;
  }

  if (num_args < min_num_args || num_args > max_num_args) {
    if (!(flags & ZEND_PARSE_PARAMS_QUIET)) {
      zend_string *func_name = get_active_function_or_method_name();

      zend_argument_count_error("%s() expects %s %d argument%s, %d given",
        ZSTR_VAL(func_name),
        min_num_args == max_num_args ? "exactly" : num_args < min_num_args ? "at least" : "at most",
        num_args < min_num_args ? min_num_args : max_num_args,
        (num_args < min_num_args ? min_num_args : max_num_args) == 1 ? "" : "s",
        num_args
      );

      zend_string_release(func_name);
    }
    return FAILURE;
  }

  if (num_args > ZEND_CALL_NUM_ARGS(EG(current_execute_data))) {
    zend_parse_parameters_debug_error("could not obtain parameters for parsing");
    return FAILURE;
  }

  i = 0;
  while (num_args-- > 0) {
    if (*type_spec == '|') {
      type_spec++;
    }

    if (*type_spec == '*' || *type_spec == '+') {
      uint32_t num_varargs = num_args + 1 - post_varargs;

      /* eat up the passed in storage even if it won't be filled in with varargs */
      varargs = va_arg(*va, zval **);
      n_varargs = va_arg(*va, uint32_t *);
      type_spec++;

      if (num_varargs > 0) {
        *n_varargs = num_varargs;
        *varargs = ZEND_CALL_ARG(EG(current_execute_data), i + 1);
        /* adjust how many args we have left and restart loop */
        num_args += 1 - num_varargs;
        i += num_varargs;
        continue;
      } else {
        *varargs = NULL;
        *n_varargs = 0;
      }
    }

    arg = ZEND_CALL_ARG(EG(current_execute_data), i + 1);

    if (zend_parse_arg(i+1, arg, va, &type_spec, flags) == FAILURE) {
      /* clean up varargs array if it was used */
      if (varargs && *varargs) {
        *varargs = NULL;
      }
      return FAILURE;
    }
    i++;
  }

  return SUCCESS;
}
/* }}} */

ZEND_API zend_result zend_parse_parameters_ex(int flags, uint32_t num_args, const char *type_spec, ...) /* {{{ */
{
  va_list va;
  zend_result retval;

  va_start(va, type_spec);
  retval = zend_parse_va_args(num_args, type_spec, &va, flags);
  va_end(va);

  return retval;
}
/* }}} */

ZEND_API zend_result zend_parse_parameters(uint32_t num_args, const char *type_spec, ...) /* {{{ */
{
  va_list va;
  zend_result retval;
  int flags = 0;

  va_start(va, type_spec);
  retval = zend_parse_va_args(num_args, type_spec, &va, flags);
  va_end(va);

  return retval;
}
/* }}} */

ZEND_API zend_result zend_parse_method_parameters(uint32_t num_args, zval *this_ptr, const char *type_spec, ...) /* {{{ */
{
  va_list va;
  zend_result retval;
  int flags = 0;
  const char *p = type_spec;
  zval **object;
  zend_class_entry *ce;

  /* Just checking this_ptr is not enough, because fcall_common_helper does not set
   * Z_OBJ(EG(This)) to NULL when calling an internal function with common.scope == NULL.
   * In that case EG(This) would still be the $this from the calling code and we'd take the
   * wrong branch here. */
  bool is_method = EG(current_execute_data)->func->common.scope != NULL;

  if (!is_method || !this_ptr || Z_TYPE_P(this_ptr) != IS_OBJECT) {
    va_start(va, type_spec);
    retval = zend_parse_va_args(num_args, type_spec, &va, flags);
    va_end(va);
  } else {
    p++;

    va_start(va, type_spec);

    object = va_arg(va, zval **);
    ce = va_arg(va, zend_class_entry *);
    *object = this_ptr;

    if (ce && !instanceof_function(Z_OBJCE_P(this_ptr), ce)) {
      zend_error_noreturn(E_CORE_ERROR, "%s::%s() must be derived from %s::%s()",
        ZSTR_VAL(Z_OBJCE_P(this_ptr)->name), get_active_function_name(), ZSTR_VAL(ce->name), get_active_function_name());
    }

    retval = zend_parse_va_args(num_args, p, &va, flags);
    va_end(va);
  }
  return retval;
}
/* }}} */

ZEND_API zend_result zend_parse_method_parameters_ex(int flags, uint32_t num_args, zval *this_ptr, const char *type_spec, ...) /* {{{ */
{
  va_list va;
  zend_result retval;
  const char *p = type_spec;
  zval **object;
  zend_class_entry *ce;

  if (!this_ptr) {
    va_start(va, type_spec);
    retval = zend_parse_va_args(num_args, type_spec, &va, flags);
    va_end(va);
  } else {
    p++;
    va_start(va, type_spec);

    object = va_arg(va, zval **);
    ce = va_arg(va, zend_class_entry *);
    *object = this_ptr;

    if (ce && !instanceof_function(Z_OBJCE_P(this_ptr), ce)) {
      if (!(flags & ZEND_PARSE_PARAMS_QUIET)) {
        zend_error_noreturn(E_CORE_ERROR, "%s::%s() must be derived from %s::%s()",
          ZSTR_VAL(ce->name), get_active_function_name(), ZSTR_VAL(Z_OBJCE_P(this_ptr)->name), get_active_function_name());
      }
      va_end(va);
      return FAILURE;
    }

    retval = zend_parse_va_args(num_args, p, &va, flags);
    va_end(va);
  }
  return retval;
}
/* }}} */

/* This function should be called after the constructor has been called
 * because it may call __set from the uninitialized object otherwise. */
ZEND_API void zend_merge_properties(zval *obj, HashTable *properties) /* {{{ */
{
  zend_object *zobj = Z_OBJ_P(obj);
  zend_object_write_property_t write_property = zobj->handlers->write_property;
  zend_string *key;
  zval *value;

  if (HT_IS_PACKED(properties)) {
    return;
  }

  const zend_class_entry *old_scope = EG(fake_scope);
  EG(fake_scope) = Z_OBJCE_P(obj);
  ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(properties, key, value) {
    if (key) {
      write_property(zobj, key, value, NULL);
    }
  } ZEND_HASH_FOREACH_END();
  EG(fake_scope) = old_scope;
}
/* }}} */

static zend_class_mutable_data *zend_allocate_mutable_data(zend_class_entry *class_type) /* {{{ */
{
  zend_class_mutable_data *mutable_data;

  ZEND_ASSERT(ZEND_MAP_PTR(class_type->mutable_data) != NULL);
  ZEND_ASSERT(ZEND_MAP_PTR_GET_IMM(class_type->mutable_data) == NULL);

  mutable_data = zend_arena_alloc(&CG(arena), sizeof(zend_class_mutable_data));
  memset(mutable_data, 0, sizeof(zend_class_mutable_data));
  mutable_data->ce_flags = class_type->ce_flags;
  ZEND_MAP_PTR_SET_IMM(class_type->mutable_data, mutable_data);

  return mutable_data;
}
/* }}} */

ZEND_API HashTable *zend_separate_class_constants_table(zend_class_entry *class_type) /* {{{ */
{
  zend_class_mutable_data *mutable_data;
  HashTable *constants_table;
  zend_string *key;
  zend_class_constant *new_c, *c;

  constants_table = zend_arena_alloc(&CG(arena), sizeof(HashTable));
  zend_hash_init(constants_table, zend_hash_num_elements(&class_type->constants_table), NULL, NULL, 0);
  zend_hash_extend(constants_table, zend_hash_num_elements(&class_type->constants_table), 0);

  ZEND_HASH_MAP_FOREACH_STR_KEY_PTR(&class_type->constants_table, key, c) {
    if (c->ce == class_type) {
      if (Z_TYPE(c->value) == IS_CONSTANT_AST || (ZEND_CLASS_CONST_FLAGS(c) & ZEND_ACC_DEPRECATED)) {
        new_c = zend_arena_alloc(&CG(arena), sizeof(zend_class_constant));
        memcpy(new_c, c, sizeof(zend_class_constant));
        c = new_c;
      }
      Z_TRY_ADDREF(c->value);
    } else {
      if (Z_TYPE(c->value) == IS_CONSTANT_AST) {
        c = zend_hash_find_ptr(CE_CONSTANTS_TABLE(c->ce), key);
        ZEND_ASSERT(c);
      }
    }
    _zend_hash_append_ptr(constants_table, key, c);
  } ZEND_HASH_FOREACH_END();

  ZEND_ASSERT(ZEND_MAP_PTR(class_type->mutable_data) != NULL);

  mutable_data = ZEND_MAP_PTR_GET_IMM(class_type->mutable_data);
  if (!mutable_data) {
    mutable_data = zend_allocate_mutable_data(class_type);
  }

  mutable_data->constants_table = constants_table;

  return constants_table;
}

static zend_result update_property(zval *val, zend_property_info *prop_info) {
  if (ZEND_TYPE_IS_SET(prop_info->type)) {
    zval tmp;

    ZVAL_COPY(&tmp, val);
    if (UNEXPECTED(zval_update_constant_ex(&tmp, prop_info->ce) != SUCCESS)) {
      zval_ptr_dtor(&tmp);
      return FAILURE;
    }
    /* property initializers must always be evaluated with strict types */;
    if (UNEXPECTED(!zend_verify_property_type(prop_info, &tmp, /* strict */ 1))) {
      zval_ptr_dtor(&tmp);
      return FAILURE;
    }
    zval_ptr_dtor(val);
    ZVAL_COPY_VALUE(val, &tmp);
    return SUCCESS;
  }
  return zval_update_constant_ex(val, prop_info->ce);
}

ZEND_API zend_result zend_update_class_constant(zend_class_constant *c, const zend_string *name, zend_class_entry *scope)
{
  ZEND_ASSERT(Z_TYPE(c->value) == IS_CONSTANT_AST);

  if (EXPECTED(!ZEND_TYPE_IS_SET(c->type) || ZEND_TYPE_PURE_MASK(c->type) == MAY_BE_ANY)) {
    return zval_update_constant_ex(&c->value, scope);
  }

  zval tmp;

  ZVAL_COPY(&tmp, &c->value);
  zend_result result = zval_update_constant_ex(&tmp, scope);
  if (result == FAILURE) {
    zval_ptr_dtor(&tmp);
    return FAILURE;
  }

  if (UNEXPECTED(!zend_verify_class_constant_type(c, name, &tmp))) {
    zval_ptr_dtor(&tmp);
    return FAILURE;
  }

  zval_ptr_dtor(&c->value);
  ZVAL_COPY_VALUE(&c->value, &tmp);

  return SUCCESS;
}

ZEND_API zend_result zend_update_class_constants(zend_class_entry *class_type) /* {{{ */
{
  zend_class_mutable_data *mutable_data = NULL;
  zval *default_properties_table = NULL;
  zval *static_members_table = NULL;
  zend_class_constant *c;
  zval *val;
  uint32_t ce_flags;

  ce_flags = class_type->ce_flags;

  if (ce_flags & ZEND_ACC_CONSTANTS_UPDATED) {
    return SUCCESS;
  }

  bool uses_mutable_data = ZEND_MAP_PTR(class_type->mutable_data) != NULL;
  if (uses_mutable_data) {
    mutable_data = ZEND_MAP_PTR_GET_IMM(class_type->mutable_data);
    if (mutable_data) {
      ce_flags = mutable_data->ce_flags;
      if (ce_flags & ZEND_ACC_CONSTANTS_UPDATED) {
        return SUCCESS;
      }
    } else {
      mutable_data = zend_allocate_mutable_data(class_type);
    }
  }

  if (class_type->parent) {
    if (UNEXPECTED(zend_update_class_constants(class_type->parent) != SUCCESS)) {
      return FAILURE;
    }
  }

  if (ce_flags & ZEND_ACC_HAS_AST_CONSTANTS) {
    HashTable *constants_table;

    if (uses_mutable_data) {
      constants_table = mutable_data->constants_table;
      if (!constants_table) {
        constants_table = zend_separate_class_constants_table(class_type);
      }
    } else {
      constants_table = &class_type->constants_table;
    }

    zend_string *name;
    ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(constants_table, name, val) {
      c = Z_PTR_P(val);
      if (Z_TYPE(c->value) == IS_CONSTANT_AST) {
        if (c->ce != class_type) {
          Z_PTR_P(val) = c = zend_hash_find_ptr(CE_CONSTANTS_TABLE(c->ce), name);
          if (Z_TYPE(c->value) != IS_CONSTANT_AST) {
            continue;
          }
        }

        val = &c->value;
        if (UNEXPECTED(zend_update_class_constant(c, name, c->ce) != SUCCESS)) {
          return FAILURE;
        }
      }
    } ZEND_HASH_FOREACH_END();
  }

  if (class_type->default_static_members_count) {
    static_members_table = CE_STATIC_MEMBERS(class_type);
    if (!static_members_table) {
      zend_class_init_statics(class_type);
      static_members_table = CE_STATIC_MEMBERS(class_type);
    }
  }

  default_properties_table = class_type->default_properties_table;
  if (uses_mutable_data && (ce_flags & ZEND_ACC_HAS_AST_PROPERTIES)) {
    zval *src, *dst, *end;

    default_properties_table = mutable_data->default_properties_table;
    if (!default_properties_table) {
      default_properties_table = zend_arena_alloc(&CG(arena), sizeof(zval) * class_type->default_properties_count);
      src = class_type->default_properties_table;
      dst = default_properties_table;
      end = dst + class_type->default_properties_count;
      do {
        ZVAL_COPY_PROP(dst, src);
        src++;
        dst++;
      } while (dst != end);
      mutable_data->default_properties_table = default_properties_table;
    }
  }

  if (ce_flags & (ZEND_ACC_HAS_AST_PROPERTIES|ZEND_ACC_HAS_AST_STATICS)) {
    zend_property_info *prop_info;

    /* Use the default properties table to also update initializers of private properties
     * that have been shadowed in a child class. */
    for (uint32_t i = 0; i < class_type->default_properties_count; i++) {
      prop_info = class_type->properties_info_table[i];
      if (!prop_info) {
        continue;
      }

      val = &default_properties_table[OBJ_PROP_TO_NUM(prop_info->offset)];
      if (Z_TYPE_P(val) == IS_CONSTANT_AST
          && UNEXPECTED(update_property(val, prop_info) != SUCCESS)) {
        return FAILURE;
      }
    }

    if (class_type->default_static_members_count) {
      ZEND_HASH_MAP_FOREACH_PTR(&class_type->properties_info, prop_info) {
        if (prop_info->flags & ZEND_ACC_STATIC) {
          val = static_members_table + prop_info->offset;
          if (Z_TYPE_P(val) == IS_CONSTANT_AST
              && UNEXPECTED(update_property(val, prop_info) != SUCCESS)) {
            return FAILURE;
          }
        }
      } ZEND_HASH_FOREACH_END();
    }
  }

  if (class_type->type == ZEND_USER_CLASS && class_type->ce_flags & ZEND_ACC_ENUM && class_type->enum_backing_type != IS_UNDEF) {
    if (zend_enum_build_backed_enum_table(class_type) == FAILURE) {
      return FAILURE;
    }
  }

  ce_flags |= ZEND_ACC_CONSTANTS_UPDATED;
  ce_flags &= ~ZEND_ACC_HAS_AST_CONSTANTS;
  ce_flags &= ~ZEND_ACC_HAS_AST_PROPERTIES;
  ce_flags &= ~ZEND_ACC_HAS_AST_STATICS;
  if (uses_mutable_data) {
    mutable_data->ce_flags = ce_flags;
  } else {
    class_type->ce_flags = ce_flags;
  }

  return SUCCESS;
}
/* }}} */

static zend_always_inline void _object_properties_init(zend_object *object, zend_class_entry *class_type) /* {{{ */
{
  if (class_type->default_properties_count) {
    zval *src = CE_DEFAULT_PROPERTIES_TABLE(class_type);
    zval *dst = object->properties_table;
    zval *end = src + class_type->default_properties_count;

    if (UNEXPECTED(class_type->type == ZEND_INTERNAL_CLASS)) {
      /* We don't have to account for refcounting because
       * zend_declare_typed_property() disallows refcounted defaults for internal classes. */
      do {
        ZEND_ASSERT(!Z_REFCOUNTED_P(src));
        ZVAL_COPY_VALUE_PROP(dst, src);
        src++;
        dst++;
      } while (src != end);
    } else {
      do {
        ZVAL_COPY_PROP(dst, src);
        src++;
        dst++;
      } while (src != end);
    }
  }
}
/* }}} */

ZEND_API void object_properties_init(zend_object *object, zend_class_entry *class_type) /* {{{ */
{
  object->properties = NULL;
  _object_properties_init(object, class_type);
}
/* }}} */

ZEND_API void object_properties_init_ex(zend_object *object, HashTable *properties) /* {{{ */
{
  object->properties = properties;
  if (object->ce->default_properties_count) {
    zval *prop;
    zend_string *key;
    zend_property_info *property_info;

    ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(properties, key, prop) {
      property_info = zend_get_property_info(object->ce, key, 1);
      if (property_info != ZEND_WRONG_PROPERTY_INFO &&
          property_info &&
          (property_info->flags & ZEND_ACC_STATIC) == 0) {
        zval *slot = OBJ_PROP(object, property_info->offset);

        if (ZEND_TYPE_IS_SET(property_info->type)) {
          zval tmp;

          ZVAL_COPY_VALUE(&tmp, prop);
          if (UNEXPECTED(!zend_verify_property_type(property_info, &tmp, 0))) {
            continue;
          }
          ZVAL_COPY_VALUE(slot, &tmp);
        } else {
          ZVAL_COPY_VALUE(slot, prop);
        }
        ZVAL_INDIRECT(prop, slot);
      }
    } ZEND_HASH_FOREACH_END();
  }
}
/* }}} */

ZEND_API void object_properties_load(zend_object *object, HashTable *properties) /* {{{ */
{
  zval *prop, tmp;
  zend_string *key;
  zend_long h;
  zend_property_info *property_info;

  ZEND_HASH_FOREACH_KEY_VAL(properties, h, key, prop) {
    if (key) {
      if (ZSTR_VAL(key)[0] == '\0') {
        const char *class_name, *prop_name;
        size_t prop_name_len;
        if (zend_unmangle_property_name_ex(key, &class_name, &prop_name, &prop_name_len) == SUCCESS) {
          zend_string *pname = zend_string_init(prop_name, prop_name_len, 0);
          const zend_class_entry *prev_scope = EG(fake_scope);
          if (class_name && class_name[0] != '*') {
            zend_string *cname = zend_string_init(class_name, strlen(class_name), 0);
            EG(fake_scope) = zend_lookup_class(cname);
            zend_string_release_ex(cname, 0);
          }
          property_info = zend_get_property_info(object->ce, pname, 1);
          zend_string_release_ex(pname, 0);
          EG(fake_scope) = prev_scope;
        } else {
          property_info = ZEND_WRONG_PROPERTY_INFO;
        }
      } else {
        property_info = zend_get_property_info(object->ce, key, 1);
      }
      if (property_info != ZEND_WRONG_PROPERTY_INFO &&
        property_info &&
        (property_info->flags & ZEND_ACC_STATIC) == 0) {
        zval *slot = OBJ_PROP(object, property_info->offset);
        zval_ptr_dtor(slot);
        ZVAL_COPY_VALUE(slot, prop);
        zval_add_ref(slot);
        if (object->properties) {
          ZVAL_INDIRECT(&tmp, slot);
          zend_hash_update(object->properties, key, &tmp);
        }
      } else {
        if (UNEXPECTED(object->ce->ce_flags & ZEND_ACC_NO_DYNAMIC_PROPERTIES)) {
          zend_throw_error(NULL, "Cannot create dynamic property %s::$%s",
            ZSTR_VAL(object->ce->name), property_info != ZEND_WRONG_PROPERTY_INFO ? zend_get_unmangled_property_name(key): "");
          return;
        } else if (!(object->ce->ce_flags & ZEND_ACC_ALLOW_DYNAMIC_PROPERTIES)) {
          zend_error(E_DEPRECATED, "Creation of dynamic property %s::$%s is deprecated",
            ZSTR_VAL(object->ce->name), property_info != ZEND_WRONG_PROPERTY_INFO ? zend_get_unmangled_property_name(key): "");
        }

        prop = zend_hash_update(zend_std_get_properties_ex(object), key, prop);
        zval_add_ref(prop);
      }
    } else {
      if (UNEXPECTED(object->ce->ce_flags & ZEND_ACC_NO_DYNAMIC_PROPERTIES)) {
        zend_throw_error(NULL, "Cannot create dynamic property %s::$" ZEND_LONG_FMT, ZSTR_VAL(object->ce->name), h);
        return;
      } else if (!(object->ce->ce_flags & ZEND_ACC_ALLOW_DYNAMIC_PROPERTIES)) {
        zend_error(E_DEPRECATED, "Creation of dynamic property %s::$" ZEND_LONG_FMT " is deprecated",
          ZSTR_VAL(object->ce->name), h);
      }

      prop = zend_hash_index_update(zend_std_get_properties_ex(object), h, prop);
      zval_add_ref(prop);
    }
  } ZEND_HASH_FOREACH_END();
}
/* }}} */

/* This function requires 'properties' to contain all props declared in the
 * class and all props being public. If only a subset is given or the class
 * has protected members then you need to merge the properties separately by
 * calling zend_merge_properties(). */
static zend_always_inline zend_result _object_and_properties_init(zval *arg, zend_class_entry *class_type, HashTable *properties) /* {{{ */
{
  if (UNEXPECTED(class_type->ce_flags & ZEND_ACC_UNINSTANTIABLE)) {
    if (class_type->ce_flags & ZEND_ACC_INTERFACE) {
      zend_throw_error(NULL, "Cannot instantiate interface %s", ZSTR_VAL(class_type->name));
    } else if (class_type->ce_flags & ZEND_ACC_TRAIT) {
      zend_throw_error(NULL, "Cannot instantiate trait %s", ZSTR_VAL(class_type->name));
    } else if (class_type->ce_flags & ZEND_ACC_ENUM) {
      zend_throw_error(NULL, "Cannot instantiate enum %s", ZSTR_VAL(class_type->name));
    } else {
      ZEND_ASSERT(class_type->ce_flags & (ZEND_ACC_IMPLICIT_ABSTRACT_CLASS|ZEND_ACC_EXPLICIT_ABSTRACT_CLASS));
      zend_throw_error(NULL, "Cannot instantiate abstract class %s", ZSTR_VAL(class_type->name));
    }
    ZVAL_NULL(arg);
    Z_OBJ_P(arg) = NULL;
    return FAILURE;
  }

  if (UNEXPECTED(!(class_type->ce_flags & ZEND_ACC_CONSTANTS_UPDATED))) {
    if (UNEXPECTED(zend_update_class_constants(class_type) != SUCCESS)) {
      ZVAL_NULL(arg);
      Z_OBJ_P(arg) = NULL;
      return FAILURE;
    }
  }

  if (class_type->create_object == NULL) {
    zend_object *obj = zend_objects_new(class_type);

    ZVAL_OBJ(arg, obj);
    if (properties) {
      object_properties_init_ex(obj, properties);
    } else {
      _object_properties_init(obj, class_type);
    }
  } else {
    ZVAL_OBJ(arg, class_type->create_object(class_type));
  }
  return SUCCESS;
}
/* }}} */

ZEND_API zend_result object_and_properties_init(zval *arg, zend_class_entry *class_type, HashTable *properties) /* {{{ */
{
  return _object_and_properties_init(arg, class_type, properties);
}
/* }}} */

ZEND_API zend_result object_init_ex(zval *arg, zend_class_entry *class_type) /* {{{ */
{
  return _object_and_properties_init(arg, class_type, NULL);
}
/* }}} */

ZEND_API zend_result object_init_with_constructor(zval *arg, zend_class_entry *class_type, uint32_t param_count, zval *params, HashTable *named_params) /* {{{ */
{
  zend_result status = _object_and_properties_init(arg, class_type, NULL);
  if (UNEXPECTED(status == FAILURE)) {
    ZVAL_UNDEF(arg);
    return FAILURE;
  }
  zend_object *obj = Z_OBJ_P(arg);
  zend_function *constructor = obj->handlers->get_constructor(obj);
  if (constructor == NULL) {
    /* The constructor can be NULL for 2 different reasons:
     * - It is not defined
     * - We are not allowed to call the constructor (e.g. private, or internal opaque class)
     *   and an exception has been thrown
     * in the former case, we are (mostly) done and the object is initialized,
     * in the latter we need to destroy the object as initialization failed
     */
    if (UNEXPECTED(EG(exception))) {
      zval_ptr_dtor(arg);
      ZVAL_UNDEF(arg);
      return FAILURE;
    }

    /* Surprisingly, this is the only case where internal classes will allow to pass extra arguments
     * However, if there are named arguments (and it is not empty),
     * an Error must be thrown to be consistent with new ClassName() */
    if (UNEXPECTED(named_params != NULL && zend_hash_num_elements(named_params) != 0)) {
      /* Throw standard Error */
      zend_string *arg_name = NULL;
      zend_hash_get_current_key(named_params, &arg_name, /* num_index */ NULL);
      ZEND_ASSERT(arg_name != NULL);
      zend_throw_error(NULL, "Unknown named parameter $%s", ZSTR_VAL(arg_name));
      /* Do not call destructor, free object, and set arg to IS_UNDEF */
      zend_object_store_ctor_failed(obj);
      zval_ptr_dtor(arg);
      ZVAL_UNDEF(arg);
      return FAILURE;
    } else {
      return SUCCESS;
    }
  }
  /* A constructor should not return a value, however if an exception is thrown
   * zend_call_known_function() will set the retval to IS_UNDEF */
  zval retval;
  zend_call_known_function(
    constructor,
    obj,
    class_type,
    &retval,
    param_count,
    params,
    named_params
  );
  if (Z_TYPE(retval) == IS_UNDEF) {
    /* Do not call destructor, free object, and set arg to IS_UNDEF */
    zend_object_store_ctor_failed(obj);
    zval_ptr_dtor(arg);
    ZVAL_UNDEF(arg);
    return FAILURE;
  } else {
    /* Unlikely, but user constructors may return any value they want */
    zval_ptr_dtor(&retval);
    return SUCCESS;
  }
}
/* }}} */

ZEND_API void object_init(zval *arg) /* {{{ */
{
  ZVAL_OBJ(arg, zend_objects_new(zend_standard_class_def));
}
/* }}} */

ZEND_API void add_assoc_long_ex(zval *arg, const char *key, size_t key_len, zend_long n) /* {{{ */
{
  zval tmp;

  ZVAL_LONG(&tmp, n);
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_assoc_null_ex(zval *arg, const char *key, size_t key_len) /* {{{ */
{
  zval tmp;

  ZVAL_NULL(&tmp);
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_assoc_bool_ex(zval *arg, const char *key, size_t key_len, bool b) /* {{{ */
{
  zval tmp;

  ZVAL_BOOL(&tmp, b);
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_assoc_resource_ex(zval *arg, const char *key, size_t key_len, zend_resource *r) /* {{{ */
{
  zval tmp;

  ZVAL_RES(&tmp, r);
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_assoc_double_ex(zval *arg, const char *key, size_t key_len, double d) /* {{{ */
{
  zval tmp;

  ZVAL_DOUBLE(&tmp, d);
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_assoc_str_ex(zval *arg, const char *key, size_t key_len, zend_string *str) /* {{{ */
{
  zval tmp;

  ZVAL_STR(&tmp, str);
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_assoc_string_ex(zval *arg, const char *key, size_t key_len, const char *str) /* {{{ */
{
  zval tmp;

  ZVAL_STRING(&tmp, str);
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_assoc_stringl_ex(zval *arg, const char *key, size_t key_len, const char *str, size_t length) /* {{{ */
{
  zval tmp;

  ZVAL_STRINGL(&tmp, str, length);
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_assoc_array_ex(zval *arg, const char *key, size_t key_len, zend_array *arr) /* {{{ */
{
  zval tmp;

  ZVAL_ARR(&tmp, arr);
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_assoc_object_ex(zval *arg, const char *key, size_t key_len, zend_object *obj) /* {{{ */
{
  zval tmp;

  ZVAL_OBJ(&tmp, obj);
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_assoc_reference_ex(zval *arg, const char *key, size_t key_len, zend_reference *ref) /* {{{ */
{
  zval tmp;

  ZVAL_REF(&tmp, ref);
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_assoc_zval_ex(zval *arg, const char *key, size_t key_len, zval *value) /* {{{ */
{
  zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, value);
}
/* }}} */

ZEND_API void add_index_long(zval *arg, zend_ulong index, zend_long n) /* {{{ */
{
  zval tmp;

  ZVAL_LONG(&tmp, n);
  zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */

ZEND_API void add_index_null(zval *arg, zend_ulong index) /* {{{ */
{
  zval tmp;

  ZVAL_NULL(&tmp);
  zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */

ZEND_API void add_index_bool(zval *arg, zend_ulong index, bool b) /* {{{ */
{
  zval tmp;

  ZVAL_BOOL(&tmp, b);
  zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */

ZEND_API void add_index_resource(zval *arg, zend_ulong index, zend_resource *r) /* {{{ */
{
  zval tmp;

  ZVAL_RES(&tmp, r);
  zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */

ZEND_API void add_index_double(zval *arg, zend_ulong index, double d) /* {{{ */
{
  zval tmp;

  ZVAL_DOUBLE(&tmp, d);
  zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */

ZEND_API void add_index_str(zval *arg, zend_ulong index, zend_string *str) /* {{{ */
{
  zval tmp;

  ZVAL_STR(&tmp, str);
  zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */

ZEND_API void add_index_string(zval *arg, zend_ulong index, const char *str) /* {{{ */
{
  zval tmp;

  ZVAL_STRING(&tmp, str);
  zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */

ZEND_API void add_index_stringl(zval *arg, zend_ulong index, const char *str, size_t length) /* {{{ */
{
  zval tmp;

  ZVAL_STRINGL(&tmp, str, length);
  zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */

ZEND_API void add_index_array(zval *arg, zend_ulong index, zend_array *arr) /* {{{ */
{
  zval tmp;

  ZVAL_ARR(&tmp, arr);
  zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */

ZEND_API void add_index_object(zval *arg, zend_ulong index, zend_object *obj) /* {{{ */
{
  zval tmp;

  ZVAL_OBJ(&tmp, obj);
  zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */

ZEND_API void add_index_reference(zval *arg, zend_ulong index, zend_reference *ref) /* {{{ */
{
  zval tmp;

  ZVAL_REF(&tmp, ref);
  zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */

ZEND_API zend_result add_next_index_long(zval *arg, zend_long n) /* {{{ */
{
  zval tmp;

  ZVAL_LONG(&tmp, n);
  return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */

ZEND_API zend_result add_next_index_null(zval *arg) /* {{{ */
{
  zval tmp;

  ZVAL_NULL(&tmp);
  return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */

ZEND_API zend_result add_next_index_bool(zval *arg, bool b) /* {{{ */
{
  zval tmp;

  ZVAL_BOOL(&tmp, b);
  return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */

ZEND_API zend_result add_next_index_resource(zval *arg, zend_resource *r) /* {{{ */
{
  zval tmp;

  ZVAL_RES(&tmp, r);
  return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */

ZEND_API zend_result add_next_index_double(zval *arg, double d) /* {{{ */
{
  zval tmp;

  ZVAL_DOUBLE(&tmp, d);
  return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */

ZEND_API zend_result add_next_index_str(zval *arg, zend_string *str) /* {{{ */
{
  zval tmp;

  ZVAL_STR(&tmp, str);
  return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */

ZEND_API zend_result add_next_index_string(zval *arg, const char *str) /* {{{ */
{
  zval tmp;

  ZVAL_STRING(&tmp, str);
  return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */

ZEND_API zend_result add_next_index_stringl(zval *arg, const char *str, size_t length) /* {{{ */
{
  zval tmp;

  ZVAL_STRINGL(&tmp, str, length);
  return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */

ZEND_API zend_result add_next_index_array(zval *arg, zend_array *arr) /* {{{ */
{
  zval tmp;

  ZVAL_ARR(&tmp, arr);
  return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */

ZEND_API zend_result add_next_index_object(zval *arg, zend_object *obj) /* {{{ */
{
  zval tmp;

  ZVAL_OBJ(&tmp, obj);
  return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */

ZEND_API zend_result add_next_index_reference(zval *arg, zend_reference *ref) /* {{{ */
{
  zval tmp;

  ZVAL_REF(&tmp, ref);
  return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */

ZEND_API zend_result array_set_zval_key(HashTable *ht, zval *key, zval *value) /* {{{ */
{
  zval *result;

  switch (Z_TYPE_P(key)) {
    case IS_STRING:
      result = zend_symtable_update(ht, Z_STR_P(key), value);
      break;
    case IS_NULL:
      result = zend_hash_update(ht, ZSTR_EMPTY_ALLOC(), value);
      break;
    case IS_RESOURCE:
      zend_use_resource_as_offset(key);
      result = zend_hash_index_update(ht, Z_RES_HANDLE_P(key), value);
      break;
    case IS_FALSE:
      result = zend_hash_index_update(ht, 0, value);
      break;
    case IS_TRUE:
      result = zend_hash_index_update(ht, 1, value);
      break;
    case IS_LONG:
      result = zend_hash_index_update(ht, Z_LVAL_P(key), value);
      break;
    case IS_DOUBLE:
      result = zend_hash_index_update(ht, zend_dval_to_lval_safe(Z_DVAL_P(key)), value);
      break;
    default:
      zend_illegal_container_offset(ZSTR_KNOWN(ZEND_STR_ARRAY), key, BP_VAR_W);
      result = NULL;
  }

  if (result) {
    Z_TRY_ADDREF_P(result);
    return SUCCESS;
  } else {
    return FAILURE;
  }
}
/* }}} */

ZEND_API void add_property_long_ex(zval *arg, const char *key, size_t key_len, zend_long n) /* {{{ */
{
  zval tmp;

  ZVAL_LONG(&tmp, n);
  add_property_zval_ex(arg, key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_property_bool_ex(zval *arg, const char *key, size_t key_len, zend_long b) /* {{{ */
{
  zval tmp;

  ZVAL_BOOL(&tmp, b);
  add_property_zval_ex(arg, key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_property_null_ex(zval *arg, const char *key, size_t key_len) /* {{{ */
{
  zval tmp;

  ZVAL_NULL(&tmp);
  add_property_zval_ex(arg, key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_property_resource_ex(zval *arg, const char *key, size_t key_len, zend_resource *r) /* {{{ */
{
  zval tmp;

  ZVAL_RES(&tmp, r);
  add_property_zval_ex(arg, key, key_len, &tmp);
  zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */

ZEND_API void add_property_double_ex(zval *arg, const char *key, size_t key_len, double d) /* {{{ */
{
  zval tmp;

  ZVAL_DOUBLE(&tmp, d);
  add_property_zval_ex(arg, key, key_len, &tmp);
}
/* }}} */

ZEND_API void add_property_str_ex(zval *arg, const char *key, size_t key_len, zend_string *str) /* {{{ */
{
  zval tmp;

  ZVAL_STR(&tmp, str);
  add_property_zval_ex(arg, key, key_len, &tmp);
  zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */

ZEND_API void add_property_string_ex(zval *arg, const char *key, size_t key_len, const char *str) /* {{{ */
{
  zval tmp;

  ZVAL_STRING(&tmp, str);
  add_property_zval_ex(arg, key, key_len, &tmp);
  zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */

ZEND_API void add_property_stringl_ex(zval *arg, const char *key, size_t key_len, const char *str, size_t length) /* {{{ */
{
  zval tmp;

  ZVAL_STRINGL(&tmp, str, length);
  add_property_zval_ex(arg, key, key_len, &tmp);
  zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */

ZEND_API void add_property_array_ex(zval *arg, const char *key, size_t key_len, zend_array *arr) /* {{{ */
{
  zval tmp;

  ZVAL_ARR(&tmp, arr);
  add_property_zval_ex(arg, key, key_len, &tmp);
  zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */

ZEND_API void add_property_object_ex(zval *arg, const char *key, size_t key_len, zend_object *obj) /* {{{ */
{
  zval tmp;

  ZVAL_OBJ(&tmp, obj);
  add_property_zval_ex(arg, key, key_len, &tmp);
  zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */

ZEND_API void add_property_reference_ex(zval *arg, const char *key, size_t key_len, zend_reference *ref) /* {{{ */
{
  zval tmp;

  ZVAL_REF(&tmp, ref);
  add_property_zval_ex(arg, key, key_len, &tmp);
  zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */

ZEND_API void add_property_zval_ex(zval *arg, const char *key, size_t key_len, zval *value) /* {{{ */
{
  zend_string *str;

  str = zend_string_init(key, key_len, 0);
  Z_OBJ_HANDLER_P(arg, write_property)(Z_OBJ_P(arg), str, value, NULL);
  zend_string_release_ex(str, 0);
}
/* }}} */

ZEND_API zend_result zend_startup_module_ex(zend_module_entry *module) /* {{{ */
{
  size_t name_len;
  zend_string *lcname;

  if (module->module_started) {
    return SUCCESS;
  }
  module->module_started = 1;

  /* Check module dependencies */
  if (module->deps) {
    const zend_module_dep *dep = module->deps;

    while (dep->name) {
      if (dep->type == MODULE_DEP_REQUIRED) {
        zend_module_entry *req_mod;

        name_len = strlen(dep->name);
        lcname = zend_string_alloc(name_len, 0);
        zend_str_tolower_copy(ZSTR_VAL(lcname), dep->name, name_len);

        if ((req_mod = zend_hash_find_ptr(&module_registry, lcname)) == NULL || !req_mod->module_started) {
          zend_string_efree(lcname);
          /* TODO: Check version relationship */
          zend_error(E_CORE_WARNING, "Cannot load module \"%s\" because required module \"%s\" is not loaded", module->name, dep->name);
          module->module_started = 0;
          return FAILURE;
        }
        zend_string_efree(lcname);
      }
      ++dep;
    }
  }

  /* Initialize module globals */
  if (module->globals_size) {
#ifdef ZTS
    ts_allocate_id(module->globals_id_ptr, module->globals_size, (ts_allocate_ctor) module->globals_ctor, (ts_allocate_dtor) module->globals_dtor);
#else
    if (module->globals_ctor) {
      module->globals_ctor(module->globals_ptr);
    }
#endif
  }
  if (module->module_startup_func) {
    EG(current_module) = module;
    if (module->module_startup_func(module->type, module->module_number)==FAILURE) {
      zend_error_noreturn(E_CORE_ERROR,"Unable to start %s module", module->name);
      EG(current_module) = NULL;
      return FAILURE;
    }
    EG(current_module) = NULL;
  }
  return SUCCESS;
}
/* }}} */

static int zend_startup_module_zval(zval *zv) /* {{{ */
{
  zend_module_entry *module = Z_PTR_P(zv);

  return (zend_startup_module_ex(module) == SUCCESS) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_REMOVE;
}
/* }}} */

static void zend_sort_modules(void *base, size_t count, size_t siz, compare_func_t compare, swap_func_t swp) /* {{{ */
{
  Bucket *b1 = base;
  Bucket *b2;
  Bucket *end = b1 + count;
  Bucket tmp;
  zend_module_entry *m, *r;

  while (b1 < end) {
try_again:
    m = (zend_module_entry*)Z_PTR(b1->val);
    if (!m->module_started && m->deps) {
      const zend_module_dep *dep = m->deps;
      while (dep->name) {
        if (dep->type == MODULE_DEP_REQUIRED || dep->type == MODULE_DEP_OPTIONAL) {
          b2 = b1 + 1;
          while (b2 < end) {
            r = (zend_module_entry*)Z_PTR(b2->val);
            if (strcasecmp(dep->name, r->name) == 0) {
              tmp = *b1;
              *b1 = *b2;
              *b2 = tmp;
              goto try_again;
            }
            b2++;
          }
        }
        dep++;
      }
    }
    b1++;
  }
}
/* }}} */

ZEND_API void zend_collect_module_handlers(void) /* {{{ */
{
  zend_module_entry *module;
  int startup_count = 0;
  int shutdown_count = 0;
  int post_deactivate_count = 0;
  int dl_loaded_count = 0;
  zend_class_entry *ce;
  int class_count = 0;

  /* Collect extensions with request startup/shutdown handlers */
  ZEND_HASH_MAP_FOREACH_PTR(&module_registry, module) {
    if (module->request_startup_func) {
      startup_count++;
    }
    if (module->request_shutdown_func) {
      shutdown_count++;
    }
    if (module->post_deactivate_func) {
      post_deactivate_count++;
    }
    if (module->handle) {
      dl_loaded_count++;
    }
  } ZEND_HASH_FOREACH_END();
  module_request_startup_handlers = (zend_module_entry**)realloc(
    module_request_startup_handlers,
      sizeof(zend_module_entry*) *
    (startup_count + 1 +
     shutdown_count + 1 +
     post_deactivate_count + 1));
  module_request_startup_handlers[startup_count] = NULL;
  module_request_shutdown_handlers = module_request_startup_handlers + startup_count + 1;
  module_request_shutdown_handlers[shutdown_count] = NULL;
  module_post_deactivate_handlers = module_request_shutdown_handlers + shutdown_count + 1;
  module_post_deactivate_handlers[post_deactivate_count] = NULL;
  /* Cannot reuse module_request_startup_handlers because it is freed in zend_destroy_modules, which happens before zend_unload_modules. */
  modules_dl_loaded = realloc(modules_dl_loaded, sizeof(zend_module_entry*) * (dl_loaded_count + 1));
  modules_dl_loaded[dl_loaded_count] = NULL;
  startup_count = 0;

  ZEND_HASH_MAP_FOREACH_PTR(&module_registry, module) {
    if (module->request_startup_func) {
      module_request_startup_handlers[startup_count++] = module;
    }
    if (module->request_shutdown_func) {
      module_request_shutdown_handlers[--shutdown_count] = module;
    }
    if (module->post_deactivate_func) {
      module_post_deactivate_handlers[--post_deactivate_count] = module;
    }
    if (module->handle) {
      modules_dl_loaded[--dl_loaded_count] = module;
    }
  } ZEND_HASH_FOREACH_END();

  /* Collect internal classes with static members */
  ZEND_HASH_MAP_FOREACH_PTR(CG(class_table), ce) {
    if (ce->type == ZEND_INTERNAL_CLASS &&
        ce->default_static_members_count > 0) {
        class_count++;
    }
  } ZEND_HASH_FOREACH_END();

  class_cleanup_handlers = (zend_class_entry**)realloc(
    class_cleanup_handlers,
    sizeof(zend_class_entry*) *
    (class_count + 1));
  class_cleanup_handlers[class_count] = NULL;

  if (class_count) {
    ZEND_HASH_MAP_FOREACH_PTR(CG(class_table), ce) {
      if (ce->type == ZEND_INTERNAL_CLASS &&
          ce->default_static_members_count > 0) {
          class_cleanup_handlers[--class_count] = ce;
      }
    } ZEND_HASH_FOREACH_END();
  }
}
/* }}} */

ZEND_API void zend_startup_modules(void) /* {{{ */
{
  zend_hash_sort_ex(&module_registry, zend_sort_modules, NULL, 0);
  zend_hash_apply(&module_registry, zend_startup_module_zval);
}
/* }}} */

ZEND_API void zend_destroy_modules(void) /* {{{ */
{
  free(class_cleanup_handlers);
  class_cleanup_handlers = NULL;
  free(module_request_startup_handlers);
  module_request_startup_handlers = NULL;
  zend_hash_graceful_reverse_destroy(&module_registry);
}
/* }}} */

ZEND_API zend_module_entry* zend_register_module_ex(zend_module_entry *module, int module_type) /* {{{ */
{
  size_t name_len;
  zend_string *lcname;
  zend_module_entry *module_ptr;

  if (!module) {
    return NULL;
  }

#if 0
  zend_printf("%s: Registering module %d\n", module->name, module->module_number);
#endif

  /* Check module dependencies */
  if (module->deps) {
    const zend_module_dep *dep = module->deps;

    while (dep->name) {
      if (dep->type == MODULE_DEP_CONFLICTS) {
        name_len = strlen(dep->name);
        lcname = zend_string_alloc(name_len, 0);
        zend_str_tolower_copy(ZSTR_VAL(lcname), dep->name, name_len);

        if (zend_hash_exists(&module_registry, lcname) || zend_get_extension(dep->name)) {
          zend_string_efree(lcname);
          /* TODO: Check version relationship */
          zend_error(E_CORE_WARNING, "Cannot load module \"%s\" because conflicting module \"%s\" is already loaded", module->name, dep->name);
          return NULL;
        }
        zend_string_efree(lcname);
      }
      ++dep;
    }
  }

  name_len = strlen(module->name);
  lcname = zend_string_alloc(name_len, module_type == MODULE_PERSISTENT);
  zend_str_tolower_copy(ZSTR_VAL(lcname), module->name, name_len);

  int module_number = zend_next_free_module();

  lcname = zend_new_interned_string(lcname);
  if ((module_ptr = zend_hash_add_ptr(&module_registry, lcname, module)) == NULL) {
    zend_error(E_CORE_WARNING, "Module \"%s\" is already loaded", module->name);
    zend_string_release(lcname);
    return NULL;
  }
  module = module_ptr;
  EG(current_module) = module;

  module->module_number = module_number;
  module->type = module_type;

  if (module->functions && zend_register_functions(NULL, module->functions, NULL, module_type)==FAILURE) {
    zend_hash_del(&module_registry, lcname);
    zend_string_release(lcname);
    EG(current_module) = NULL;
    zend_error(E_CORE_WARNING,"%s: Unable to register functions, unable to load", module->name);
    return NULL;
  }

  EG(current_module) = NULL;
  zend_string_release(lcname);
  return module;
}
/* }}} */

ZEND_API zend_module_entry* zend_register_internal_module(zend_module_entry *module) /* {{{ */
{
  return zend_register_module_ex(module, MODULE_PERSISTENT);
}
/* }}} */

static void zend_check_magic_method_args(
    uint32_t num_args, const zend_class_entry *ce, const zend_function *fptr, int error_type)
{
  if (fptr->common.num_args != num_args) {
    if (num_args == 0) {
      zend_error(error_type, "Method %s::%s() cannot take arguments",
        ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
    } else if (num_args == 1) {
      zend_error(error_type, "Method %s::%s() must take exactly 1 argument",
        ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
    } else {
      zend_error(error_type, "Method %s::%s() must take exactly %" PRIu32 " arguments",
        ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name), num_args);
    }
    return;
  }
  for (uint32_t i = 0; i < num_args; i++) {
    if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, i + 1)) {
      zend_error(error_type, "Method %s::%s() cannot take arguments by reference",
        ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
      return;
    }
  }
}

static void zend_check_magic_method_arg_type(uint32_t arg_num, const zend_class_entry *ce, const zend_function *fptr, int error_type, int arg_type)
{
    if (
      ZEND_TYPE_IS_SET(fptr->common.arg_info[arg_num].type)
       && !(ZEND_TYPE_FULL_MASK(fptr->common.arg_info[arg_num].type) & arg_type)
    ) {
      zend_error(error_type, "%s::%s(): Parameter #%d ($%s) must be of type %s when declared",
        ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name),
        arg_num + 1, ZSTR_VAL(fptr->common.arg_info[arg_num].name),
        ZSTR_VAL(zend_type_to_string((zend_type) ZEND_TYPE_INIT_MASK(arg_type))));
    }
}

static void zend_check_magic_method_return_type(const zend_class_entry *ce, const zend_function *fptr, int error_type, int return_type)
{
  if (return_type == MAY_BE_VOID) {
    if (fptr->common.fn_flags & ZEND_ACC_NODISCARD) {
      zend_error_noreturn(error_type, "Method %s::%s cannot be #[\\NoDiscard]", ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
    }
  }

  if (!(fptr->common.fn_flags & ZEND_ACC_HAS_RETURN_TYPE)) {
    /* For backwards compatibility reasons, do not enforce the return type if it is not set. */
    return;
  }

  if (ZEND_TYPE_PURE_MASK(fptr->common.arg_info[-1].type) & MAY_BE_NEVER) {
    /* It is always legal to specify the never type. */
    return;
  }

  bool is_complex_type = ZEND_TYPE_IS_COMPLEX(fptr->common.arg_info[-1].type);
  uint32_t extra_types = ZEND_TYPE_PURE_MASK(fptr->common.arg_info[-1].type) & ~return_type;
  if (extra_types & MAY_BE_STATIC) {
    extra_types &= ~MAY_BE_STATIC;
    is_complex_type = true;
  }

  if (extra_types || (is_complex_type && return_type != MAY_BE_OBJECT)) {
    zend_error(error_type, "%s::%s(): Return type must be %s when declared",
      ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name),
      ZSTR_VAL(zend_type_to_string((zend_type) ZEND_TYPE_INIT_MASK(return_type))));
  }
}

static void zend_check_magic_method_non_static(
    const zend_class_entry *ce, const zend_function *fptr, int error_type)
{
  if (fptr->common.fn_flags & ZEND_ACC_STATIC) {
    zend_error(error_type, "Method %s::%s() cannot be static",
      ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
  }
}

static void zend_check_magic_method_static(
    const zend_class_entry *ce, const zend_function *fptr, int error_type)
{
  if (!(fptr->common.fn_flags & ZEND_ACC_STATIC)) {
    zend_error(error_type, "Method %s::%s() must be static",
      ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
  }
}

static void zend_check_magic_method_public(
    const zend_class_entry *ce, const zend_function *fptr, int error_type)
{
  // TODO: Remove this warning after adding proper visibility handling.
  if (!(fptr->common.fn_flags & ZEND_ACC_PUBLIC)) {
    zend_error(E_WARNING, "The magic method %s::%s() must have public visibility",
      ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
  }
}

static void zend_check_magic_method_no_return_type(
    const zend_class_entry *ce, const zend_function *fptr, int error_type)
{
  if (fptr->common.fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {
    zend_error_noreturn(error_type, "Method %s::%s() cannot declare a return type",
      ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
  }

  if (fptr->common.fn_flags & ZEND_ACC_NODISCARD) {
    zend_error_noreturn(error_type, "Method %s::%s cannot be #[\\NoDiscard]", ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
  }
}

ZEND_API void zend_check_magic_method_implementation(const zend_class_entry *ce, const zend_function *fptr, zend_string *lcname, int error_type) /* {{{ */
{
  if (ZSTR_VAL(lcname)[0] != '_'
   || ZSTR_VAL(lcname)[1] != '_') {
    return;
  }

  if (zend_string_equals_literal(lcname, ZEND_CONSTRUCTOR_FUNC_NAME)) {
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_no_return_type(ce, fptr, error_type);
  } else if (zend_string_equals_literal(lcname, ZEND_DESTRUCTOR_FUNC_NAME)) {
    zend_check_magic_method_args(0, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_no_return_type(ce, fptr, error_type);
  } else if (zend_string_equals_literal(lcname, ZEND_CLONE_FUNC_NAME)) {
    zend_check_magic_method_args(0, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
  } else if (zend_string_equals_literal(lcname, ZEND_GET_FUNC_NAME)) {
    zend_check_magic_method_args(1, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
  } else if (zend_string_equals_literal(lcname, ZEND_SET_FUNC_NAME)) {
    zend_check_magic_method_args(2, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
    zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
  } else if (zend_string_equals_literal(lcname, ZEND_UNSET_FUNC_NAME)) {
    zend_check_magic_method_args(1, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
    zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
  } else if (zend_string_equals_literal(lcname, ZEND_ISSET_FUNC_NAME)) {
    zend_check_magic_method_args(1, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
    zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_BOOL);
  } else if (zend_string_equals_literal(lcname, ZEND_CALL_FUNC_NAME)) {
    zend_check_magic_method_args(2, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
    zend_check_magic_method_arg_type(1, ce, fptr, error_type, MAY_BE_ARRAY);
  } else if (zend_string_equals_literal(lcname, ZEND_CALLSTATIC_FUNC_NAME)) {
    zend_check_magic_method_args(2, ce, fptr, error_type);
    zend_check_magic_method_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
    zend_check_magic_method_arg_type(1, ce, fptr, error_type, MAY_BE_ARRAY);
  } else if (zend_string_equals_literal(lcname, ZEND_TOSTRING_FUNC_NAME)) {
    zend_check_magic_method_args(0, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_STRING);
  } else if (zend_string_equals_literal(lcname, ZEND_DEBUGINFO_FUNC_NAME)) {
    zend_check_magic_method_args(0, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_return_type(ce, fptr, error_type, (MAY_BE_ARRAY | MAY_BE_NULL));
  } else if (zend_string_equals_literal(lcname, "__serialize")) {
    zend_check_magic_method_args(0, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_ARRAY);
  } else if (zend_string_equals_literal(lcname, "__unserialize")) {
    zend_check_magic_method_args(1, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_ARRAY);
    zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
  } else if (zend_string_equals_literal(lcname, "__set_state")) {
    zend_check_magic_method_args(1, ce, fptr, error_type);
    zend_check_magic_method_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_ARRAY);
    zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_OBJECT);
  } else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_MAGIC_INVOKE))) {
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
  } else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_SLEEP))) {
    zend_check_magic_method_args(0, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_ARRAY);
  } else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_WAKEUP))) {
    zend_check_magic_method_args(0, ce, fptr, error_type);
    zend_check_magic_method_non_static(ce, fptr, error_type);
    zend_check_magic_method_public(ce, fptr, error_type);
    zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
  }
}
/* }}} */

ZEND_API void zend_add_magic_method(zend_class_entry *ce, zend_function *fptr, zend_string *lcname)
{
  if (ZSTR_VAL(lcname)[0] != '_' || ZSTR_VAL(lcname)[1] != '_') {
    /* pass */
  } else if (zend_string_equals_literal(lcname, ZEND_CLONE_FUNC_NAME)) {
    ce->clone = fptr;
  } else if (zend_string_equals_literal(lcname, ZEND_CONSTRUCTOR_FUNC_NAME)) {
    ce->constructor = fptr;
    ce->constructor->common.fn_flags |= ZEND_ACC_CTOR;
  } else if (zend_string_equals_literal(lcname, ZEND_DESTRUCTOR_FUNC_NAME)) {
    ce->destructor = fptr;
  } else if (zend_string_equals_literal(lcname, ZEND_GET_FUNC_NAME)) {
    ce->__get = fptr;
    ce->ce_flags |= ZEND_ACC_USE_GUARDS;
  } else if (zend_string_equals_literal(lcname, ZEND_SET_FUNC_NAME)) {
    ce->__set = fptr;
    ce->ce_flags |= ZEND_ACC_USE_GUARDS;
  } else if (zend_string_equals_literal(lcname, ZEND_CALL_FUNC_NAME)) {
    ce->__call = fptr;
  } else if (zend_string_equals_literal(lcname, ZEND_UNSET_FUNC_NAME)) {
    ce->__unset = fptr;
    ce->ce_flags |= ZEND_ACC_USE_GUARDS;
  } else if (zend_string_equals_literal(lcname, ZEND_ISSET_FUNC_NAME)) {
    ce->__isset = fptr;
    ce->ce_flags |= ZEND_ACC_USE_GUARDS;
  } else if (zend_string_equals_literal(lcname, ZEND_CALLSTATIC_FUNC_NAME)) {
    ce->__callstatic = fptr;
  } else if (zend_string_equals_literal(lcname, ZEND_TOSTRING_FUNC_NAME)) {
    ce->__tostring = fptr;
  } else if (zend_string_equals_literal(lcname, ZEND_DEBUGINFO_FUNC_NAME)) {
    ce->__debugInfo = fptr;
    ce->ce_flags |= ZEND_ACC_USE_GUARDS;
  } else if (zend_string_equals_literal(lcname, "__serialize")) {
    ce->__serialize = fptr;
  } else if (zend_string_equals_literal(lcname, "__unserialize")) {
    ce->__unserialize = fptr;
  }
}

ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arg_info_toString, 0, 0, IS_STRING, 0)
ZEND_END_ARG_INFO()

static zend_always_inline void zend_normalize_internal_type(zend_type *type) {
  ZEND_ASSERT(!ZEND_TYPE_HAS_LITERAL_NAME(*type));
  if (ZEND_TYPE_PURE_MASK(*type) != MAY_BE_ANY) {
    ZEND_ASSERT(!ZEND_TYPE_CONTAINS_CODE(*type, IS_RESOURCE) && "resource is not allowed in a zend_type");
  }
  zend_type *current;
  ZEND_TYPE_FOREACH_MUTABLE(*type, current) {
    if (ZEND_TYPE_HAS_NAME(*current)) {
      zend_string *name = zend_new_interned_string(ZEND_TYPE_NAME(*current));
      zend_alloc_ce_cache(name);
      ZEND_TYPE_SET_PTR(*current, name);
    } else if (ZEND_TYPE_HAS_LIST(*current)) {
      zend_type *inner;
      ZEND_TYPE_FOREACH_MUTABLE(*current, inner) {
        ZEND_ASSERT(!ZEND_TYPE_HAS_LITERAL_NAME(*inner) && !ZEND_TYPE_HAS_LIST(*inner));
        if (ZEND_TYPE_HAS_NAME(*inner)) {
          zend_string *name = zend_new_interned_string(ZEND_TYPE_NAME(*inner));
          zend_alloc_ce_cache(name);
          ZEND_TYPE_SET_PTR(*inner, name);
        }
      } ZEND_TYPE_FOREACH_END();
    }
  } ZEND_TYPE_FOREACH_END();
}

/* registers all functions in *library_functions in the function hash */
ZEND_API zend_result zend_register_functions(zend_class_entry *scope, const zend_function_entry *functions, HashTable *function_table, int type) /* {{{ */
{
  const zend_function_entry *ptr = functions;
  zend_function function;
  zend_internal_function *reg_function, *internal_function = (zend_internal_function *)&function;
  int count=0, unload=0;
  HashTable *target_function_table = function_table;
  int error_type;
  zend_string *lowercase_name;
  size_t fname_len;

  if (type==MODULE_PERSISTENT) {
    error_type = E_CORE_WARNING;
  } else {
    error_type = E_WARNING;
  }

  if (!target_function_table) {
    target_function_table = CG(function_table);
  }
  internal_function->type = ZEND_INTERNAL_FUNCTION;
  internal_function->module = EG(current_module);
  if (EG(active) && ZEND_OBSERVER_ENABLED) {
    /* Add an observer temporary to store previous observed frames. This is
     * normally handled by zend_observer_post_startup(), except for
     * functions registered at runtime (EG(active)). */
    internal_function->T = 1;
  } else {
    internal_function->T = 0;
  }
  memset(internal_function->reserved, 0, ZEND_MAX_RESERVED_RESOURCES * sizeof(void*));

  while (ptr->fname) {
    fname_len = strlen(ptr->fname);
    internal_function->handler = ptr->handler;
    internal_function->doc_comment = ptr->doc_comment ? zend_string_init_interned(ptr->doc_comment, strlen(ptr->doc_comment), 1) : NULL;
    internal_function->function_name = zend_string_init_interned(ptr->fname, fname_len, 1);
    internal_function->scope = scope;
    internal_function->prototype = NULL;
    internal_function->prop_info = NULL;
    internal_function->attributes = NULL;
    internal_function->frameless_function_infos = ptr->frameless_function_infos;
    if (EG(active)) { // at run-time: this ought to only happen if registered with dl() or somehow temporarily at runtime
      ZEND_MAP_PTR_INIT(internal_function->run_time_cache, zend_arena_calloc(&CG(arena), 1, zend_internal_run_time_cache_reserved_size()));
    } else {
#ifdef ZTS
      ZEND_MAP_PTR_NEW_STATIC(internal_function->run_time_cache);
#else
      ZEND_MAP_PTR_INIT(internal_function->run_time_cache, NULL);
#endif
    }
    if (ptr->flags) {
      if (!(ptr->flags & ZEND_ACC_PPP_MASK)) {
        if (ptr->flags != ZEND_ACC_DEPRECATED && scope) {
          zend_error(error_type, "Invalid access level for %s::%s() - access must be exactly one of public, protected or private", ZSTR_VAL(scope->name), ptr->fname);
        }
        internal_function->fn_flags = ZEND_ACC_PUBLIC | ptr->flags;
      } else {
        internal_function->fn_flags = ptr->flags;
      }
    } else {
      internal_function->fn_flags = ZEND_ACC_PUBLIC;
    }

    if (ptr->arg_info) {
      zend_internal_function_info *info = (zend_internal_function_info*)ptr->arg_info;
      internal_function->arg_info = (zend_internal_arg_info*)ptr->arg_info+1;
      internal_function->num_args = ptr->num_args;
      /* Currently you cannot denote that the function can accept less arguments than num_args */
      if (info->required_num_args == (uintptr_t)-1) {
        internal_function->required_num_args = ptr->num_args;
      } else {
        internal_function->required_num_args = info->required_num_args;
      }
      if (ZEND_ARG_SEND_MODE(info)) {
        internal_function->fn_flags |= ZEND_ACC_RETURN_REFERENCE;
      }
      if (ZEND_ARG_IS_VARIADIC(&ptr->arg_info[ptr->num_args])) {
        internal_function->fn_flags |= ZEND_ACC_VARIADIC;
        /* Don't count the variadic argument */
        internal_function->num_args--;
      }
      if (ZEND_TYPE_IS_SET(info->type)) {
        if (ZEND_TYPE_HAS_NAME(info->type)) {
          const char *type_name = ZEND_TYPE_LITERAL_NAME(info->type);
          if (!scope && (!strcasecmp(type_name, "self") || !strcasecmp(type_name, "parent"))) {
            zend_error_noreturn(E_CORE_ERROR, "Cannot declare a return type of %s outside of a class scope", type_name);
          }
        }

        internal_function->fn_flags |= ZEND_ACC_HAS_RETURN_TYPE;
      }
    } else {
      zend_error(E_CORE_WARNING, "Missing arginfo for %s%s%s()",
         scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);

      internal_function->arg_info = NULL;
      internal_function->num_args = 0;
      internal_function->required_num_args = 0;
    }

    /* If not specified, add __toString() return type for compatibility with Stringable
     * interface. */
    if (scope && zend_string_equals_literal_ci(internal_function->function_name, "__tostring") &&
        !(internal_function->fn_flags & ZEND_ACC_HAS_RETURN_TYPE)) {
      zend_error(E_CORE_WARNING, "%s::__toString() implemented without string return type",
        ZSTR_VAL(scope->name));
      internal_function->arg_info = (zend_internal_arg_info *) arg_info_toString + 1;
      internal_function->fn_flags |= ZEND_ACC_HAS_RETURN_TYPE;
      internal_function->num_args = internal_function->required_num_args = 0;
    }


    zend_set_function_arg_flags((zend_function*)internal_function);
    if (ptr->flags & ZEND_ACC_ABSTRACT) {
      if (scope) {
        /* This is a class that must be abstract itself. Here we set the check info. */
        scope->ce_flags |= ZEND_ACC_IMPLICIT_ABSTRACT_CLASS;
        if (!(scope->ce_flags & ZEND_ACC_INTERFACE)) {
          /* Since the class is not an interface it needs to be declared as a abstract class. */
          /* Since here we are handling internal functions only we can add the keyword flag. */
          /* This time we set the flag for the keyword 'abstract'. */
          scope->ce_flags |= ZEND_ACC_EXPLICIT_ABSTRACT_CLASS;
        }
      }
      if ((ptr->flags & ZEND_ACC_STATIC) && (!scope || !(scope->ce_flags & ZEND_ACC_INTERFACE))) {
        zend_error(error_type, "Static function %s%s%s() cannot be abstract", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
      }
    } else {
      if (scope && (scope->ce_flags & ZEND_ACC_INTERFACE)) {
        zend_error(error_type, "Interface %s cannot contain non abstract method %s()", ZSTR_VAL(scope->name), ptr->fname);
        return FAILURE;
      }
      if (!internal_function->handler) {
        zend_error(error_type, "Method %s%s%s() cannot be a NULL function", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
        zend_unregister_functions(functions, count, target_function_table);
        return FAILURE;
      }
    }
    lowercase_name = zend_string_tolower_ex(internal_function->function_name, type == MODULE_PERSISTENT);
    lowercase_name = zend_new_interned_string(lowercase_name);
    reg_function = malloc(sizeof(zend_internal_function));
    memcpy(reg_function, &function, sizeof(zend_internal_function));
    if (zend_hash_add_ptr(target_function_table, lowercase_name, reg_function) == NULL) {
      unload=1;
      free(reg_function);
      zend_string_release(lowercase_name);
      break;
    }
    if (reg_function->frameless_function_infos) {
      const zend_frameless_function_info *flf_info = reg_function->frameless_function_infos;
      while (flf_info->handler) {
        if (zend_flf_count == zend_flf_capacity) {
          if (!zend_flf_capacity) {
            zend_flf_capacity = 8;
          } else {
            zend_flf_capacity *= 2;
          }
          /* +1 for NULL terminator */
          zend_flf_handlers = realloc(zend_flf_handlers, (zend_flf_capacity + 1) * sizeof(void *));
          zend_flf_functions = realloc(zend_flf_functions, (zend_flf_capacity + 1) * sizeof(zend_function *));
        }
        zend_flf_handlers[zend_flf_count] = flf_info->handler;
        zend_flf_functions[zend_flf_count] = (zend_function *)reg_function;
        zend_flf_count++;
        flf_info++;
      }
      zend_flf_handlers[zend_flf_count] = NULL;
      zend_flf_functions[zend_flf_count] = NULL;
    }

    /* Get parameter count including variadic parameter. */
    uint32_t num_args = reg_function->num_args;
    if (reg_function->fn_flags & ZEND_ACC_VARIADIC) {
      num_args++;
    }

    /* If types of arguments have to be checked */
    if (reg_function->arg_info && num_args) {
      uint32_t i;
      for (i = 0; i < num_args; i++) {
        zend_internal_arg_info *arg_info = &reg_function->arg_info[i];
        ZEND_ASSERT(arg_info->name && "Parameter must have a name");
        if (ZEND_TYPE_IS_SET(arg_info->type)) {
            reg_function->fn_flags |= ZEND_ACC_HAS_TYPE_HINTS;
        }
#if ZEND_DEBUG
        for (uint32_t j = 0; j < i; j++) {
          if (!strcmp(arg_info->name, reg_function->arg_info[j].name)) {
            zend_error_noreturn(E_CORE_ERROR,
              "Duplicate parameter name $%s for function %s%s%s()", arg_info->name,
              scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
          }
        }
#endif
      }
    }

    /* Rebuild arginfos if parameter/property types and/or a return type are used */
    if (reg_function->arg_info &&
        (reg_function->fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS))) {
      /* convert "const char*" class type names into "zend_string*" */
      uint32_t i;
      zend_internal_arg_info *arg_info = reg_function->arg_info - 1;
      zend_internal_arg_info *new_arg_info;

      /* Treat return type as an extra argument */
      num_args++;
      new_arg_info = malloc(sizeof(zend_internal_arg_info) * num_args);
      memcpy(new_arg_info, arg_info, sizeof(zend_internal_arg_info) * num_args);
      reg_function->arg_info = new_arg_info + 1;
      for (i = 0; i < num_args; i++) {
        if (ZEND_TYPE_HAS_LITERAL_NAME(new_arg_info[i].type)) {
          // gen_stubs.php does not support codegen for DNF types in arg infos.
          // As a temporary workaround, we split the type name on `|` characters,
          // converting it to an union type if necessary.
          const char *class_name = ZEND_TYPE_LITERAL_NAME(new_arg_info[i].type);
          new_arg_info[i].type.type_mask &= ~_ZEND_TYPE_LITERAL_NAME_BIT;

          size_t num_types = 1;
          const char *p = class_name;
          while ((p = strchr(p, '|'))) {
            num_types++;
            p++;
          }

          if (num_types == 1) {
            /* Simple class type */
            zend_string *str = zend_string_init_interned(class_name, strlen(class_name), 1);
            zend_alloc_ce_cache(str);
            ZEND_TYPE_SET_PTR(new_arg_info[i].type, str);
            new_arg_info[i].type.type_mask |= _ZEND_TYPE_NAME_BIT;
          } else {
            /* Union type */
            zend_type_list *list = malloc(ZEND_TYPE_LIST_SIZE(num_types));
            list->num_types = num_types;
            ZEND_TYPE_SET_LIST(new_arg_info[i].type, list);
            ZEND_TYPE_FULL_MASK(new_arg_info[i].type) |= _ZEND_TYPE_UNION_BIT;

            const char *start = class_name;
            uint32_t j = 0;
            while (true) {
              const char *end = strchr(start, '|');
              zend_string *str = zend_string_init_interned(start, end ? end - start : strlen(start), 1);
              zend_alloc_ce_cache(str);
              list->types[j] = (zend_type) ZEND_TYPE_INIT_CLASS(str, 0, 0);
              if (!end) {
                break;
              }
              start = end + 1;
              j++;
            }
          }
        }
        if (ZEND_TYPE_IS_ITERABLE_FALLBACK(new_arg_info[i].type)) {
          /* Warning generated an extension load warning which is emitted for every test
          zend_error(E_CORE_WARNING, "iterable type is now a compile time alias for array|Traversable,"
            " regenerate the argument info via the php-src gen_stub build script");
          */
          zend_type legacy_iterable = ZEND_TYPE_INIT_CLASS_MASK(
            ZSTR_KNOWN(ZEND_STR_TRAVERSABLE),
            (new_arg_info[i].type.type_mask | MAY_BE_ARRAY)
          );
          new_arg_info[i].type = legacy_iterable;
        }

        zend_normalize_internal_type(&new_arg_info[i].type);
      }
    }

    if (scope) {
      zend_check_magic_method_implementation(
        scope, (zend_function *)reg_function, lowercase_name, E_CORE_ERROR);
      zend_add_magic_method(scope, (zend_function *)reg_function, lowercase_name);
    }
    ptr++;
    count++;
    zend_string_release(lowercase_name);
  }
  if (unload) { /* before unloading, display all remaining bad function in the module */
    while (ptr->fname) {
      fname_len = strlen(ptr->fname);
      lowercase_name = zend_string_alloc(fname_len, 0);
      zend_str_tolower_copy(ZSTR_VAL(lowercase_name), ptr->fname, fname_len);
      if (zend_hash_exists(target_function_table, lowercase_name)) {
        zend_error(error_type, "Function registration failed - duplicate name - %s%s%s", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
      }
      zend_string_efree(lowercase_name);
      ptr++;
    }
    zend_unregister_functions(functions, count, target_function_table);
    return FAILURE;
  }
  return SUCCESS;
}
/* }}} */

/* count=-1 means erase all functions, otherwise,
 * erase the first count functions
 */
ZEND_API void zend_unregister_functions(const zend_function_entry *functions, int count, HashTable *function_table) /* {{{ */
{
  const zend_function_entry *ptr = functions;
  int i=0;
  HashTable *target_function_table = function_table;
  zend_string *lowercase_name;
  size_t fname_len;

  if (!target_function_table) {
    target_function_table = CG(function_table);
  }
  while (ptr->fname) {
    if (count!=-1 && i>=count) {
      break;
    }
    fname_len = strlen(ptr->fname);
    lowercase_name = zend_string_alloc(fname_len, 0);
    zend_str_tolower_copy(ZSTR_VAL(lowercase_name), ptr->fname, fname_len);
    zend_hash_del(target_function_table, lowercase_name);
    zend_string_efree(lowercase_name);
    ptr++;
    i++;
  }
}
/* }}} */

ZEND_API zend_result zend_startup_module(zend_module_entry *module) /* {{{ */
{
  if ((module = zend_register_internal_module(module)) != NULL && zend_startup_module_ex(module) == SUCCESS) {
    return SUCCESS;
  }
  return FAILURE;
}
/* }}} */

ZEND_API zend_result zend_get_module_started(const char *module_name) /* {{{ */
{
  zend_module_entry *module;

  module = zend_hash_str_find_ptr(&module_registry, module_name, strlen(module_name));
  return (module && module->module_started) ? SUCCESS : FAILURE;
}
/* }}} */

static void clean_module_classes(int module_number) /* {{{ */
{
  /* Child classes may reuse structures from parent classes, so destroy in reverse order. */
  Bucket *bucket;
  ZEND_HASH_REVERSE_FOREACH_BUCKET(EG(class_table), bucket) {
    zend_class_entry *ce = Z_CE(bucket->val);
    if (ce->type == ZEND_INTERNAL_CLASS && ce->info.internal.module->module_number == module_number) {
      zend_hash_del_bucket(EG(class_table), bucket);
    }
  } ZEND_HASH_FOREACH_END();

}
/* }}} */

static int clean_module_function(zval *el, void *arg) /* {{{ */
{
  zend_function *fe = (zend_function *) Z_PTR_P(el);
  zend_module_entry *module = (zend_module_entry *) arg;
  if (fe->common.type == ZEND_INTERNAL_FUNCTION && fe->internal_function.module == module) {
    return ZEND_HASH_APPLY_REMOVE;
  } else {
    return ZEND_HASH_APPLY_KEEP;
  }
}
/* }}} */

static void clean_module_functions(zend_module_entry *module) /* {{{ */
{
  zend_hash_apply_with_argument(CG(function_table), clean_module_function, module);
}
/* }}} */

void module_destructor(zend_module_entry *module) /* {{{ */
{
#if ZEND_RC_DEBUG
  bool orig_rc_debug = zend_rc_debug;
#endif

  if (module->type == MODULE_TEMPORARY) {
#if ZEND_RC_DEBUG
    /* FIXME: Loading extensions during the request breaks some invariants.
     * In particular, it will create persistent interned strings, which is
     * not allowed at this stage. */
    zend_rc_debug = false;
#endif
    zend_clean_module_rsrc_dtors(module->module_number);
    clean_module_constants(module->module_number);
    clean_module_classes(module->module_number);
  }

  if (module->module_started && module->module_shutdown_func) {
#if 0
    zend_printf("%s: Module shutdown\n", module->name);
#endif
    module->module_shutdown_func(module->type, module->module_number);
  }

  if (module->module_started
   && !module->module_shutdown_func
   && module->type == MODULE_TEMPORARY) {
    zend_unregister_ini_entries_ex(module->module_number, module->type);
  }

  /* Deinitialize module globals */
  if (module->globals_size) {
#ifdef ZTS
    if (*module->globals_id_ptr) {
      ts_free_id(*module->globals_id_ptr);
    }
#else
    if (module->globals_dtor) {
      module->globals_dtor(module->globals_ptr);
    }
#endif
  }

  module->module_started=0;
  if (module->type == MODULE_TEMPORARY && module->functions) {
    zend_unregister_functions(module->functions, -1, NULL);
    /* Clean functions registered separately from module->functions */
    clean_module_functions(module);
  }

#if ZEND_RC_DEBUG
  zend_rc_debug = orig_rc_debug;
#endif
}
/* }}} */

void module_registry_unload(const zend_module_entry *module)
{
#ifdef HAVE_LIBDL
  if (!getenv("ZEND_DONT_UNLOAD_MODULES")) {
    DL_UNLOAD(module->handle);
  }
#else
  ZEND_IGNORE_VALUE(module);
#endif
}

ZEND_API void zend_activate_modules(void) /* {{{ */
{
  zend_module_entry **p = module_request_startup_handlers;

  while (*p) {
    zend_module_entry *module = *p;

    if (module->request_startup_func(module->type, module->module_number)==FAILURE) {
      zend_error(E_WARNING, "request_startup() for %s module failed", module->name);
      exit(1);
    }
    p++;
  }
}
/* }}} */

ZEND_API void zend_deactivate_modules(void) /* {{{ */
{
  EG(current_execute_data) = NULL; /* we're no longer executing anything */

  if (EG(full_tables_cleanup)) {
    zend_module_entry *module;

    ZEND_HASH_MAP_REVERSE_FOREACH_PTR(&module_registry, module) {
      if (module->request_shutdown_func) {
        zend_try {
          module->request_shutdown_func(module->type, module->module_number);
        } zend_end_try();
      }
    } ZEND_HASH_FOREACH_END();
  } else {
    zend_module_entry **p = module_request_shutdown_handlers;

    while (*p) {
      zend_module_entry *module = *p;
      zend_try {
        module->request_shutdown_func(module->type, module->module_number);
      } zend_end_try();
      p++;
    }
  }
}
/* }}} */

void zend_unload_modules(void) /* {{{ */
{
  zend_module_entry **modules = modules_dl_loaded;
  while (*modules) {
    module_registry_unload(*modules);
    modules++;
  }
  free(modules_dl_loaded);
  modules_dl_loaded = NULL;
}
/* }}} */

ZEND_API void zend_post_deactivate_modules(void) /* {{{ */
{
  if (EG(full_tables_cleanup)) {
    zend_module_entry *module;
    zval *zv;
    zend_string *key;

    ZEND_HASH_MAP_FOREACH_PTR(&module_registry, module) {
      if (module->post_deactivate_func) {
        module->post_deactivate_func();
      }
    } ZEND_HASH_FOREACH_END();
    ZEND_HASH_MAP_REVERSE_FOREACH_STR_KEY_VAL(&module_registry, key, zv) {
      module = Z_PTR_P(zv);
      if (module->type != MODULE_TEMPORARY) {
        break;
      }
      module_destructor(module);
      if (module->handle) {
        module_registry_unload(module);
      }
      zend_string_release_ex(key, 0);
    } ZEND_HASH_MAP_FOREACH_END_DEL();
  } else {
    zend_module_entry **p = module_post_deactivate_handlers;

    while (*p) {
      zend_module_entry *module = *p;

      module->post_deactivate_func();
      p++;
    }
  }
}
/* }}} */

/* return the next free module number */
ZEND_API int zend_next_free_module(void) /* {{{ */
{
  return zend_hash_num_elements(&module_registry);
}
/* }}} */

static zend_class_entry *do_register_internal_class(zend_class_entry *orig_class_entry, uint32_t ce_flags) /* {{{ */
{
  zend_class_entry *class_entry = malloc(sizeof(zend_class_entry));
  zend_string *lowercase_name;
  *class_entry = *orig_class_entry;

  class_entry->type = ZEND_INTERNAL_CLASS;
  zend_initialize_class_data(class_entry, 0);
  zend_alloc_ce_cache(class_entry->name);
  class_entry->ce_flags = orig_class_entry->ce_flags | ce_flags | ZEND_ACC_CONSTANTS_UPDATED | ZEND_ACC_LINKED | ZEND_ACC_RESOLVED_PARENT | ZEND_ACC_RESOLVED_INTERFACES;
  class_entry->info.internal.module = EG(current_module);

  if (class_entry->info.internal.builtin_functions) {
    zend_register_functions(class_entry, class_entry->info.internal.builtin_functions, &class_entry->function_table, EG(current_module)->type);
  }

  lowercase_name = zend_string_tolower_ex(orig_class_entry->name, EG(current_module)->type == MODULE_PERSISTENT);
  lowercase_name = zend_new_interned_string(lowercase_name);
  zend_hash_update_ptr(CG(class_table), lowercase_name, class_entry);
  zend_string_release_ex(lowercase_name, 1);

  if (class_entry->__tostring && !zend_string_equals_literal(class_entry->name, "Stringable")
      && !(class_entry->ce_flags & ZEND_ACC_TRAIT)) {
    ZEND_ASSERT(zend_ce_stringable
      && "Should be registered before first class using __toString()");
    zend_do_implement_interface(class_entry, zend_ce_stringable);
  }
  return class_entry;
}
/* }}} */

/* If parent_ce is not NULL then it inherits from parent_ce
 * If parent_ce is NULL and parent_name isn't then it looks for the parent and inherits from it
 * If both parent_ce and parent_name are NULL it does a regular class registration
 * If parent_name is specified but not found NULL is returned
 */
ZEND_API zend_class_entry *zend_register_internal_class_ex(zend_class_entry *class_entry, zend_class_entry *parent_ce) /* {{{ */
{
  return zend_register_internal_class_with_flags(class_entry, parent_ce, 0);
}
/* }}} */

ZEND_API zend_class_entry *zend_register_internal_class_with_flags(
  zend_class_entry *class_entry,
  zend_class_entry *parent_ce,
  uint32_t ce_flags
) {
  zend_class_entry *register_class = do_register_internal_class(class_entry, ce_flags);

  if (parent_ce) {
    zend_do_inheritance(register_class, parent_ce);
    zend_build_properties_info_table(register_class);
  }

  return register_class;
}

ZEND_API void zend_class_implements(zend_class_entry *class_entry, int num_interfaces, ...) /* {{{ */
{
  zend_class_entry *interface_entry;
  va_list interface_list;
  va_start(interface_list, num_interfaces);

  while (num_interfaces--) {
    interface_entry = va_arg(interface_list, zend_class_entry *);
    if (interface_entry == zend_ce_stringable
        && zend_class_implements_interface(class_entry, zend_ce_stringable)) {
      /* Stringable is implemented automatically,
       * silently ignore an explicit implementation. */
      continue;
    }

    zend_do_implement_interface(class_entry, interface_entry);
  }

  va_end(interface_list);
}
/* }}} */

/* A class that contains at least one abstract method automatically becomes an abstract class.
 */
ZEND_API zend_class_entry *zend_register_internal_class(zend_class_entry *orig_class_entry) /* {{{ */
{
  return do_register_internal_class(orig_class_entry, 0);
}
/* }}} */

ZEND_API zend_class_entry *zend_register_internal_interface(zend_class_entry *orig_class_entry) /* {{{ */
{
  return do_register_internal_class(orig_class_entry, ZEND_ACC_INTERFACE);
}
/* }}} */

ZEND_API zend_result zend_register_class_alias_ex(const char *name, size_t name_len, zend_class_entry *ce, bool persistent) /* {{{ */
{
  zend_string *lcname;
  zval zv, *ret;

  /* TODO: Move this out of here in 7.4. */
  if (persistent && EG(current_module) && EG(current_module)->type == MODULE_TEMPORARY) {
    persistent = 0;
  }

  if (name[0] == '\\') {
    lcname = zend_string_alloc(name_len-1, persistent);
    zend_str_tolower_copy(ZSTR_VAL(lcname), name+1, name_len-1);
  } else {
    lcname = zend_string_alloc(name_len, persistent);
    zend_str_tolower_copy(ZSTR_VAL(lcname), name, name_len);
  }

  zend_assert_valid_class_name(lcname, "a class alias");

  lcname = zend_new_interned_string(lcname);

  /* We cannot increase the refcount of an internal class during request time.
   * Instead of having to deal with differentiating between class types and lifetimes,
   * we simply don't increase the refcount of a class entry for aliases.
   */
  ZVAL_ALIAS_PTR(&zv, ce);

  ret = zend_hash_add(CG(class_table), lcname, &zv);
  zend_string_release_ex(lcname, 0);
  if (ret) {
    // avoid notifying at MINIT time
    if (ce->type == ZEND_USER_CLASS) {
      zend_observer_class_linked_notify(ce, lcname);
    }
    return SUCCESS;
  }
  return FAILURE;
}
/* }}} */

// TODO num_symbol_tables as unsigned int?
ZEND_API zend_result zend_set_hash_symbol(zval *symbol, const char *name, size_t name_length, bool is_ref, int num_symbol_tables, ...) /* {{{ */
{
  HashTable *symbol_table;
  va_list symbol_table_list;

  if (num_symbol_tables <= 0) return FAILURE;

  if (is_ref) {
    ZVAL_MAKE_REF(symbol);
  }

  va_start(symbol_table_list, num_symbol_tables);
  while (num_symbol_tables-- > 0) {
    symbol_table = va_arg(symbol_table_list, HashTable *);
    zend_hash_str_update(symbol_table, name, name_length, symbol);
    Z_TRY_ADDREF_P(symbol);
  }
  va_end(symbol_table_list);
  return SUCCESS;
}
/* }}} */

/* Disabled functions support */

static void zend_disable_function(const char *function_name, size_t function_name_length)
{
  if (UNEXPECTED(
    (function_name_length == strlen("exit") && !memcmp(function_name, "exit", strlen("exit")))
    || (function_name_length == strlen("die") && !memcmp(function_name, "die", strlen("die")))
    || (function_name_length == strlen("clone") && !memcmp(function_name, "clone", strlen("clone")))
  )) {
    zend_error(E_WARNING, "Cannot disable function %s()", function_name);
    return;
  }
  zend_hash_str_del(CG(function_table), function_name, function_name_length);
}

ZEND_API void zend_disable_functions(const char *function_list) /* {{{ */
{
  if (!function_list || !*function_list) {
    return;
  }

  const char *s = NULL, *e = function_list;
  while (*e) {
    switch (*e) {
      case ' ':
      case ',':
        if (s) {
          zend_disable_function(s, e - s);
          s = NULL;
        }
        break;
      default:
        if (!s) {
          s = e;
        }
        break;
    }
    e++;
  }
  if (s) {
    zend_disable_function(s, e - s);
  }

  /* Rehash the function table after deleting functions. This ensures that all internal
   * functions are contiguous, which means we don't need to perform full table cleanup
   * on shutdown. */
  zend_hash_rehash(CG(function_table));
}
/* }}} */

#ifdef ZEND_WIN32
#pragma optimize("", off)
#endif
static ZEND_COLD zend_object *display_disabled_class(zend_class_entry *class_type) /* {{{ */
{
  zend_object *intern;

  intern = zend_objects_new(class_type);

  /* Initialize default properties */
  if (EXPECTED(class_type->default_properties_count != 0)) {
    zval *p = intern->properties_table;
    zval *end = p + class_type->default_properties_count;
    do {
      ZVAL_UNDEF(p);
      p++;
    } while (p != end);
  }

  zend_error(E_WARNING, "%s() has been disabled for security reasons", ZSTR_VAL(class_type->name));
  return intern;
}
#ifdef ZEND_WIN32
#pragma optimize("", on)
#endif
/* }}} */

static const zend_function_entry disabled_class_new[] = {
  ZEND_FE_END
};

ZEND_API zend_result zend_disable_class(const char *class_name, size_t class_name_length) /* {{{ */
{
  zend_class_entry *disabled_class;
  zend_string *key;
  zend_function *fn;
  zend_property_info *prop;

  key = zend_string_alloc(class_name_length, 0);
  zend_str_tolower_copy(ZSTR_VAL(key), class_name, class_name_length);
  disabled_class = zend_hash_find_ptr(CG(class_table), key);
  zend_string_release_ex(key, 0);
  if (!disabled_class) {
    return FAILURE;
  }

  /* Will be reset by INIT_CLASS_ENTRY. */
  free(disabled_class->interfaces);

  INIT_CLASS_ENTRY_INIT_METHODS((*disabled_class), disabled_class_new);
  disabled_class->create_object = display_disabled_class;

  ZEND_HASH_MAP_FOREACH_PTR(&disabled_class->function_table, fn) {
    if ((fn->common.fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS)) &&
      fn->common.scope == disabled_class) {
      zend_free_internal_arg_info(&fn->internal_function);
    }
  } ZEND_HASH_FOREACH_END();
  zend_hash_clean(&disabled_class->function_table);
  ZEND_HASH_MAP_FOREACH_PTR(&disabled_class->properties_info, prop) {
    if (prop->ce == disabled_class) {
      zend_string_release(prop->name);
      zend_type_release(prop->type, /* persistent */ 1);
      free(prop);
    }
  } ZEND_HASH_FOREACH_END();
  zend_hash_clean(&disabled_class->properties_info);
  return SUCCESS;
}
/* }}} */

static zend_always_inline zend_class_entry *get_scope(zend_execute_data *frame)
{
  return frame && frame->func ? frame->func->common.scope : NULL;
}

static bool zend_is_callable_check_class(zend_string *name, zend_class_entry *scope, zend_execute_data *frame, zend_fcall_info_cache *fcc, bool *strict_class, char **error, bool suppress_deprecation) /* {{{ */
{
  bool ret = 0;
  zend_class_entry *ce;
  size_t name_len = ZSTR_LEN(name);
  zend_string *lcname;
  ALLOCA_FLAG(use_heap);

  ZSTR_ALLOCA_ALLOC(lcname, name_len, use_heap);
  zend_str_tolower_copy(ZSTR_VAL(lcname), ZSTR_VAL(name), name_len);

  *strict_class = 0;
  if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_SELF))) {
    if (!scope) {
      if (error) *error = estrdup("cannot access \"self\" when no class scope is active");
    } else {
      if (!suppress_deprecation) {
        zend_error(E_DEPRECATED, "Use of \"self\" in callables is deprecated");
      }
      fcc->called_scope = zend_get_called_scope(frame);
      if (!fcc->called_scope || !instanceof_function(fcc->called_scope, scope)) {
        fcc->called_scope = scope;
      }
      fcc->calling_scope = scope;
      if (!fcc->object) {
        fcc->object = zend_get_this_object(frame);
      }
      ret = 1;
    }
  } else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_PARENT))) {
    if (!scope) {
      if (error) *error = estrdup("cannot access \"parent\" when no class scope is active");
    } else if (!scope->parent) {
      if (error) *error = estrdup("cannot access \"parent\" when current class scope has no parent");
    } else {
      if (!suppress_deprecation) {
        zend_error(E_DEPRECATED, "Use of \"parent\" in callables is deprecated");
      }
      fcc->called_scope = zend_get_called_scope(frame);
      if (!fcc->called_scope || !instanceof_function(fcc->called_scope, scope->parent)) {
        fcc->called_scope = scope->parent;
      }
      fcc->calling_scope = scope->parent;
      if (!fcc->object) {
        fcc->object = zend_get_this_object(frame);
      }
      *strict_class = 1;
      ret = 1;
    }
  } else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_STATIC))) {
    zend_class_entry *called_scope = zend_get_called_scope(frame);

    if (!called_scope) {
      if (error) *error = estrdup("cannot access \"static\" when no class scope is active");
    } else {
      if (!suppress_deprecation) {
        zend_error(E_DEPRECATED, "Use of \"static\" in callables is deprecated");
      }
      fcc->called_scope = called_scope;
      fcc->calling_scope = called_scope;
      if (!fcc->object) {
        fcc->object = zend_get_this_object(frame);
      }
      *strict_class = 1;
      ret = 1;
    }
  } else if ((ce = zend_lookup_class(name)) != NULL) {
    zend_class_entry *scope = get_scope(frame);
    fcc->calling_scope = ce;
    if (scope && !fcc->object) {
      zend_object *object = zend_get_this_object(frame);

      if (object &&
          instanceof_function(object->ce, scope) &&
          instanceof_function(scope, ce)) {
        fcc->object = object;
        fcc->called_scope = object->ce;
      } else {
        fcc->called_scope = ce;
      }
    } else {
      fcc->called_scope = fcc->object ? fcc->object->ce : ce;
    }
    *strict_class = 1;
    ret = 1;
  } else {
    if (error) zend_spprintf(error, 0, "class \"%.*s\" not found", (int)name_len, ZSTR_VAL(name));
  }
  ZSTR_ALLOCA_FREE(lcname, use_heap);
  return ret;
}
/* }}} */

ZEND_API void zend_release_fcall_info_cache(zend_fcall_info_cache *fcc) {
  if (fcc->function_handler &&
    (fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE)) {
    if (fcc->function_handler->common.function_name) {
      zend_string_release_ex(fcc->function_handler->common.function_name, 0);
    }
    zend_free_trampoline(fcc->function_handler);
    fcc->function_handler = NULL;
  }
}

static zend_always_inline bool zend_is_callable_check_func(zval *callable, zend_execute_data *frame, zend_fcall_info_cache *fcc, bool strict_class, char **error, bool suppress_deprecation) /* {{{ */
{
  zend_class_entry *ce_org = fcc->calling_scope;
  bool retval = 0;
  zend_string *mname, *cname;
  zend_string *lmname;
  const char *colon;
  size_t clen;
  HashTable *ftable;
  int call_via_handler = 0;
  zend_class_entry *scope;
  zval *zv;
  ALLOCA_FLAG(use_heap)

  fcc->calling_scope = NULL;

  if (!ce_org) {
    zend_function *func;
    zend_string *lmname;

    /* Check if function with given name exists.
     * This may be a compound name that includes namespace name */
    if (UNEXPECTED(Z_STRVAL_P(callable)[0] == '\\')) {
      /* Skip leading \ */
      ZSTR_ALLOCA_ALLOC(lmname, Z_STRLEN_P(callable) - 1, use_heap);
      zend_str_tolower_copy(ZSTR_VAL(lmname), Z_STRVAL_P(callable) + 1, Z_STRLEN_P(callable) - 1);
      func = zend_fetch_function(lmname);
      ZSTR_ALLOCA_FREE(lmname, use_heap);
    } else {
      lmname = Z_STR_P(callable);
      func = zend_fetch_function(lmname);
      if (!func) {
        ZSTR_ALLOCA_ALLOC(lmname, Z_STRLEN_P(callable), use_heap);
        zend_str_tolower_copy(ZSTR_VAL(lmname), Z_STRVAL_P(callable), Z_STRLEN_P(callable));
        func = zend_fetch_function(lmname);
        ZSTR_ALLOCA_FREE(lmname, use_heap);
      }
    }
    if (EXPECTED(func != NULL)) {
      fcc->function_handler = func;
      return 1;
    }
  }

  /* Split name into class/namespace and method/function names */
  if ((colon = zend_memrchr(Z_STRVAL_P(callable), ':', Z_STRLEN_P(callable))) != NULL &&
    colon > Z_STRVAL_P(callable) &&
    *(colon-1) == ':'
  ) {
    size_t mlen;

    colon--;
    clen = colon - Z_STRVAL_P(callable);
    mlen = Z_STRLEN_P(callable) - clen - 2;

    if (colon == Z_STRVAL_P(callable)) {
      if (error) *error = estrdup("invalid function name");
      return 0;
    }

    /* This is a compound name.
     * Try to fetch class and then find static method. */
    if (ce_org) {
      scope = ce_org;
    } else {
      scope = get_scope(frame);
    }

    cname = zend_string_init_interned(Z_STRVAL_P(callable), clen, 0);
    if (ZSTR_HAS_CE_CACHE(cname) && ZSTR_GET_CE_CACHE(cname)) {
      fcc->calling_scope = ZSTR_GET_CE_CACHE(cname);
      if (scope && !fcc->object) {
        zend_object *object = zend_get_this_object(frame);

        if (object &&
            instanceof_function(object->ce, scope) &&
            instanceof_function(scope, fcc->calling_scope)) {
          fcc->object = object;
          fcc->called_scope = object->ce;
        } else {
          fcc->called_scope = fcc->calling_scope;
        }
      } else {
        fcc->called_scope = fcc->object ? fcc->object->ce : fcc->calling_scope;
      }
      strict_class = 1;
    } else if (!zend_is_callable_check_class(cname, scope, frame, fcc, &strict_class, error, suppress_deprecation || ce_org != NULL)) {
      zend_string_release_ex(cname, 0);
      return 0;
    }
    zend_string_release_ex(cname, 0);

    ftable = &fcc->calling_scope->function_table;
    if (ce_org && !instanceof_function(ce_org, fcc->calling_scope)) {
      if (error) zend_spprintf(error, 0, "class %s is not a subclass of %s", ZSTR_VAL(ce_org->name), ZSTR_VAL(fcc->calling_scope->name));
      return 0;
    }
    if (ce_org && !suppress_deprecation) {
      zend_error(E_DEPRECATED,
        "Callables of the form [\"%s\", \"%s\"] are deprecated",
        ZSTR_VAL(ce_org->name), Z_STRVAL_P(callable));
    }
    mname = zend_string_init(Z_STRVAL_P(callable) + clen + 2, mlen, 0);
  } else if (ce_org) {
    /* Try to fetch find static method of given class. */
    mname = Z_STR_P(callable);
    zend_string_addref(mname);
    ftable = &ce_org->function_table;
    fcc->calling_scope = ce_org;
  } else {
    /* We already checked for plain function before. */
    if (error) {
      zend_spprintf(error, 0, "function \"%s\" not found or invalid function name", Z_STRVAL_P(callable));
    }
    return 0;
  }

  lmname = zend_string_tolower(mname);
  if (strict_class &&
      fcc->calling_scope &&
    zend_string_equals_literal(lmname, ZEND_CONSTRUCTOR_FUNC_NAME)) {
    fcc->function_handler = fcc->calling_scope->constructor;
    if (fcc->function_handler) {
      retval = 1;
    }
  } else if ((zv = zend_hash_find(ftable, lmname)) != NULL) {
    fcc->function_handler = Z_PTR_P(zv);
    retval = 1;
    if ((fcc->function_handler->op_array.fn_flags & ZEND_ACC_CHANGED) &&
        !strict_class) {
      scope = get_scope(frame);
      if (scope &&
          instanceof_function(fcc->function_handler->common.scope, scope)) {

        zv = zend_hash_find(&scope->function_table, lmname);
        if (zv != NULL) {
          zend_function *priv_fbc = Z_PTR_P(zv);

          if ((priv_fbc->common.fn_flags & ZEND_ACC_PRIVATE)
           && priv_fbc->common.scope == scope) {
            fcc->function_handler = priv_fbc;
          }
        }
      }
    }
    if (!(fcc->function_handler->common.fn_flags & ZEND_ACC_PUBLIC) &&
        (fcc->calling_scope &&
         ((fcc->object && fcc->calling_scope->__call) ||
          (!fcc->object && fcc->calling_scope->__callstatic)))) {
      scope = get_scope(frame);
      ZEND_ASSERT(!(fcc->function_handler->common.fn_flags & ZEND_ACC_PUBLIC));
      if (!zend_check_method_accessible(fcc->function_handler, scope)) {
        retval = 0;
        fcc->function_handler = NULL;
        goto get_function_via_handler;
      }
    }
  } else {
get_function_via_handler:
    if (fcc->object && fcc->calling_scope == ce_org) {
      if (strict_class && ce_org->__call) {
        fcc->function_handler = zend_get_call_trampoline_func(ce_org, mname, 0);
        call_via_handler = 1;
        retval = 1;
      } else {
        fcc->function_handler = fcc->object->handlers->get_method(&fcc->object, mname, NULL);
        if (fcc->function_handler) {
          if (strict_class &&
              (!fcc->function_handler->common.scope ||
               !instanceof_function(ce_org, fcc->function_handler->common.scope))) {
            zend_release_fcall_info_cache(fcc);
          } else {
            retval = 1;
            call_via_handler = (fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) != 0;
          }
        }
      }
    } else if (fcc->calling_scope) {
      if (fcc->calling_scope->get_static_method) {
        fcc->function_handler = fcc->calling_scope->get_static_method(fcc->calling_scope, mname);
      } else {
        fcc->function_handler = zend_std_get_static_method(fcc->calling_scope, mname, NULL);
      }
      if (fcc->function_handler) {
        retval = 1;
        call_via_handler = (fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) != 0;
        if (call_via_handler && !fcc->object) {
          zend_object *object = zend_get_this_object(frame);
          if (object &&
              instanceof_function(object->ce, fcc->calling_scope)) {
            fcc->object = object;
          }
        }
      }
    }
  }

  if (retval) {
    if (fcc->calling_scope && !call_via_handler) {
      if (fcc->function_handler->common.fn_flags & ZEND_ACC_ABSTRACT) {
        retval = 0;
        if (error) {
          zend_spprintf(error, 0, "cannot call abstract method %s::%s()", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name));
        }
      } else if (!fcc->object && !(fcc->function_handler->common.fn_flags & ZEND_ACC_STATIC)) {
        retval = 0;
        if (error) {
          zend_spprintf(error, 0, "non-static method %s::%s() cannot be called statically", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name));
        }
      }
      if (retval
       && !(fcc->function_handler->common.fn_flags & ZEND_ACC_PUBLIC)) {
        scope = get_scope(frame);
        ZEND_ASSERT(!(fcc->function_handler->common.fn_flags & ZEND_ACC_PUBLIC));
        if (!zend_check_method_accessible(fcc->function_handler, scope)) {
          if (error) {
            if (*error) {
              efree(*error);
            }
            zend_spprintf(error, 0, "cannot access %s method %s::%s()", zend_visibility_string(fcc->function_handler->common.fn_flags), ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name));
          }
          retval = 0;
        }
      }
    }
  } else if (error) {
    if (fcc->calling_scope) {
      zend_spprintf(error, 0, "class %s does not have a method \"%s\"", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(mname));
    } else {
      zend_spprintf(error, 0, "function %s() does not exist", ZSTR_VAL(mname));
    }
  }
  zend_string_release_ex(lmname, 0);
  zend_string_release_ex(mname, 0);

  if (fcc->object) {
    fcc->called_scope = fcc->object->ce;
    if (fcc->function_handler
     && (fcc->function_handler->common.fn_flags & ZEND_ACC_STATIC)) {
      fcc->object = NULL;
    }
  }
  return retval;
}
/* }}} */

ZEND_API zend_string *zend_get_callable_name_ex(zval *callable, zend_object *object) /* {{{ */
{
try_again:
  switch (Z_TYPE_P(callable)) {
    case IS_STRING:
      if (object) {
        return zend_create_member_string(object->ce->name, Z_STR_P(callable));
      }
      return zend_string_copy(Z_STR_P(callable));

    case IS_ARRAY:
    {
      zval *method = NULL;
      zval *obj = NULL;

      if (zend_hash_num_elements(Z_ARRVAL_P(callable)) == 2) {
        obj = zend_hash_index_find_deref(Z_ARRVAL_P(callable), 0);
        method = zend_hash_index_find_deref(Z_ARRVAL_P(callable), 1);
      }

      if (obj == NULL || method == NULL || Z_TYPE_P(method) != IS_STRING) {
        return ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED);
      }

      if (Z_TYPE_P(obj) == IS_STRING) {
        return zend_create_member_string(Z_STR_P(obj), Z_STR_P(method));
      } else if (Z_TYPE_P(obj) == IS_OBJECT) {
        return zend_create_member_string(Z_OBJCE_P(obj)->name, Z_STR_P(method));
      } else {
        return ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED);
      }
    }
    case IS_OBJECT:
    {
      zend_class_entry *ce = Z_OBJCE_P(callable);

      if (ce == zend_ce_closure) {
        const zend_function *fn = zend_get_closure_method_def(Z_OBJ_P(callable));

        if ((fn->common.fn_flags & ZEND_ACC_FAKE_CLOSURE) && fn->common.scope) {
          return zend_create_member_string(fn->common.scope->name, fn->common.function_name);
        }
        return zend_string_copy(fn->common.function_name);
      }

      return zend_string_concat2(
        ZSTR_VAL(ce->name), ZSTR_LEN(ce->name),
        "::__invoke", sizeof("::__invoke") - 1);
    }
    case IS_REFERENCE:
      callable = Z_REFVAL_P(callable);
      goto try_again;
    default:
      return zval_get_string_func(callable);
  }
}
/* }}} */

ZEND_API zend_string *zend_get_callable_name(zval *callable) /* {{{ */
{
  return zend_get_callable_name_ex(callable, NULL);
}
/* }}} */

ZEND_API bool zend_is_callable_at_frame(
    zval *callable, zend_object *object, zend_execute_data *frame,
    uint32_t check_flags, zend_fcall_info_cache *fcc, char **error) /* {{{ */
{
  bool ret;
  zend_fcall_info_cache fcc_local;
  bool strict_class = 0;

  if (fcc == NULL) {
    fcc = &fcc_local;
  }
  if (error) {
    *error = NULL;
  }

  fcc->calling_scope = NULL;
  fcc->called_scope = NULL;
  fcc->function_handler = NULL;
  fcc->object = NULL;
  fcc->closure = NULL;

again:
  switch (Z_TYPE_P(callable)) {
    case IS_STRING:
      if (object) {
        fcc->object = object;
        fcc->calling_scope = object->ce;
      }

      if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) {
        fcc->called_scope = fcc->calling_scope;
        return 1;
      }

check_func:
      ret = zend_is_callable_check_func(callable, frame, fcc, strict_class, error, check_flags & IS_CALLABLE_SUPPRESS_DEPRECATIONS);
      if (fcc == &fcc_local) {
        zend_release_fcall_info_cache(fcc);
      }
      return ret;

    case IS_ARRAY:
      {
        if (zend_hash_num_elements(Z_ARRVAL_P(callable)) != 2) {
          if (error) *error = estrdup("array callback must have exactly two members");
          return 0;
        }

        zval *obj = zend_hash_index_find(Z_ARRVAL_P(callable), 0);
        zval *method = zend_hash_index_find(Z_ARRVAL_P(callable), 1);
        if (!obj || !method) {
          if (error) *error = estrdup("array callback has to contain indices 0 and 1");
          return 0;
        }

        ZVAL_DEREF(obj);
        if (Z_TYPE_P(obj) != IS_STRING && Z_TYPE_P(obj) != IS_OBJECT) {
          if (error) *error = estrdup("first array member is not a valid class name or object");
          return 0;
        }

        ZVAL_DEREF(method);
        if (Z_TYPE_P(method) != IS_STRING) {
          if (error) *error = estrdup("second array member is not a valid method");
          return 0;
        }

        if (Z_TYPE_P(obj) == IS_STRING) {
          if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) {
            return 1;
          }

          if (!zend_is_callable_check_class(Z_STR_P(obj), get_scope(frame), frame, fcc, &strict_class, error, check_flags & IS_CALLABLE_SUPPRESS_DEPRECATIONS)) {
            return 0;
          }
        } else {
          ZEND_ASSERT(Z_TYPE_P(obj) == IS_OBJECT);
          fcc->calling_scope = Z_OBJCE_P(obj); /* TBFixed: what if it's overloaded? */
          fcc->object = Z_OBJ_P(obj);

          if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) {
            fcc->called_scope = fcc->calling_scope;
            return 1;
          }
        }

        callable = method;
        goto check_func;
      }
      return 0;
    case IS_OBJECT:
      if (Z_OBJ_HANDLER_P(callable, get_closure) && Z_OBJ_HANDLER_P(callable, get_closure)(Z_OBJ_P(callable), &fcc->calling_scope, &fcc->function_handler, &fcc->object, 1) == SUCCESS) {
        fcc->called_scope = fcc->calling_scope;
        fcc->closure = Z_OBJ_P(callable);
        if (fcc == &fcc_local) {
          zend_release_fcall_info_cache(fcc);
        }
        return 1;
      }
      if (error) *error = estrdup("no array or string given");
      return 0;
    case IS_REFERENCE:
      callable = Z_REFVAL_P(callable);
      goto again;
    default:
      if (error) *error = estrdup("no array or string given");
      return 0;
  }
}
/* }}} */

ZEND_API bool zend_is_callable_ex(zval *callable, zend_object *object, uint32_t check_flags, zend_string **callable_name, zend_fcall_info_cache *fcc, char **error) /* {{{ */
{
  /* Determine callability at the first parent user frame. */
  zend_execute_data *frame = EG(current_execute_data);
  while (frame && (!frame->func || !ZEND_USER_CODE(frame->func->type))) {
    frame = frame->prev_execute_data;
  }

  bool ret = zend_is_callable_at_frame(callable, object, frame, check_flags, fcc, error);
  if (callable_name) {
    *callable_name = zend_get_callable_name_ex(callable, object);
  }
  return ret;
}

ZEND_API bool zend_is_callable(zval *callable, uint32_t check_flags, zend_string **callable_name) /* {{{ */
{
  return zend_is_callable_ex(callable, NULL, check_flags, callable_name, NULL, NULL);
}
/* }}} */

ZEND_API bool zend_make_callable(zval *callable, zend_string **callable_name) /* {{{ */
{
  zend_fcall_info_cache fcc;

  if (zend_is_callable_ex(callable, NULL, IS_CALLABLE_SUPPRESS_DEPRECATIONS, callable_name, &fcc, NULL)) {
    if (Z_TYPE_P(callable) == IS_STRING && fcc.calling_scope) {
      zval_ptr_dtor_str(callable);
      array_init(callable);
      add_next_index_str(callable, zend_string_copy(fcc.calling_scope->name));
      add_next_index_str(callable, zend_string_copy(fcc.function_handler->common.function_name));
    }
    zend_release_fcall_info_cache(&fcc);
    return 1;
  }
  return 0;
}
/* }}} */

ZEND_API zend_result zend_fcall_info_init(zval *callable, uint32_t check_flags, zend_fcall_info *fci, zend_fcall_info_cache *fcc, zend_string **callable_name, char **error) /* {{{ */
{
  if (!zend_is_callable_ex(callable, NULL, check_flags, callable_name, fcc, error)) {
    return FAILURE;
  }

  fci->size = sizeof(*fci);
  fci->object = fcc->object;
  ZVAL_COPY_VALUE(&fci->function_name, callable);
  fci->retval = NULL;
  fci->param_count = 0;
  fci->params = NULL;
  fci->named_params = NULL;

  return SUCCESS;
}
/* }}} */

ZEND_API void zend_fcall_info_args_clear(zend_fcall_info *fci, bool free_mem) /* {{{ */
{
  if (fci->params) {
    zval *p = fci->params;
    zval *end = p + fci->param_count;

    while (p != end) {
      i_zval_ptr_dtor(p);
      p++;
    }
    if (free_mem) {
      efree(fci->params);
      fci->params = NULL;
    }
  }
  fci->param_count = 0;
}
/* }}} */

ZEND_API void zend_fcall_info_args_save(zend_fcall_info *fci, uint32_t *param_count, zval **params) /* {{{ */
{
  *param_count = fci->param_count;
  *params = fci->params;
  fci->param_count = 0;
  fci->params = NULL;
}
/* }}} */

ZEND_API void zend_fcall_info_args_restore(zend_fcall_info *fci, uint32_t param_count, zval *params) /* {{{ */
{
  zend_fcall_info_args_clear(fci, 1);
  fci->param_count = param_count;
  fci->params = params;
}
/* }}} */

ZEND_API zend_result zend_fcall_info_args_ex(zend_fcall_info *fci, zend_function *func, zval *args) /* {{{ */
{
  zval *arg, *params;
  uint32_t n = 1;

  zend_fcall_info_args_clear(fci, !args);

  if (!args) {
    return SUCCESS;
  }

  if (Z_TYPE_P(args) != IS_ARRAY) {
    return FAILURE;
  }

  fci->param_count = zend_hash_num_elements(Z_ARRVAL_P(args));
  fci->params = params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval));

  ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(args), arg) {
    if (func && !Z_ISREF_P(arg) && ARG_SHOULD_BE_SENT_BY_REF(func, n)) {
      ZVAL_NEW_REF(params, arg);
      Z_TRY_ADDREF_P(arg);
    } else {
      ZVAL_COPY(params, arg);
    }
    params++;
    n++;
  } ZEND_HASH_FOREACH_END();

  return SUCCESS;
}
/* }}} */

ZEND_API zend_result zend_fcall_info_args(zend_fcall_info *fci, zval *args) /* {{{ */
{
  return zend_fcall_info_args_ex(fci, NULL, args);
}
/* }}} */

ZEND_API void zend_fcall_info_argp(zend_fcall_info *fci, uint32_t argc, zval *argv) /* {{{ */
{
  zend_fcall_info_args_clear(fci, !argc);

  if (argc) {
    fci->param_count = argc;
    fci->params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval));

    for (uint32_t i = 0; i < argc; ++i) {
      ZVAL_COPY(&fci->params[i], &argv[i]);
    }
  }
}
/* }}} */

ZEND_API void zend_fcall_info_argv(zend_fcall_info *fci, uint32_t argc, va_list *argv) /* {{{ */
{
  zend_fcall_info_args_clear(fci, !argc);

  if (argc) {
    zval *arg;
    fci->param_count = argc;
    fci->params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval));

    for (uint32_t i = 0; i < argc; ++i) {
      arg = va_arg(*argv, zval *);
      ZVAL_COPY(&fci->params[i], arg);
    }
  }
}
/* }}} */

ZEND_API void zend_fcall_info_argn(zend_fcall_info *fci, uint32_t argc, ...) /* {{{ */
{
  va_list argv;

  va_start(argv, argc);
  zend_fcall_info_argv(fci, argc, &argv);
  va_end(argv);
}
/* }}} */

ZEND_API zend_result zend_fcall_info_call(zend_fcall_info *fci, zend_fcall_info_cache *fcc, zval *retval_ptr, zval *args) /* {{{ */
{
  zval retval, *org_params = NULL;
  uint32_t org_count = 0;
  zend_result result;

  fci->retval = retval_ptr ? retval_ptr : &retval;
  if (args) {
    zend_fcall_info_args_save(fci, &org_count, &org_params);
    zend_fcall_info_args(fci, args);
  }
  result = zend_call_function(fci, fcc);

  if (!retval_ptr && Z_TYPE(retval) != IS_UNDEF) {
    zval_ptr_dtor(&retval);
  }
  if (args) {
    zend_fcall_info_args_restore(fci, org_count, org_params);
  }
  return result;
}
/* }}} */

ZEND_API void zend_get_callable_zval_from_fcc(const zend_fcall_info_cache *fcc, zval *callable)
{
  if (fcc->closure) {
    ZVAL_OBJ_COPY(callable, fcc->closure);
  } else if (fcc->function_handler->common.scope) {
    array_init(callable);
    if (fcc->object) {
      GC_ADDREF(fcc->object);
      add_next_index_object(callable, fcc->object);
    } else {
      add_next_index_str(callable, zend_string_copy(fcc->calling_scope->name));
    }
    add_next_index_str(callable, zend_string_copy(fcc->function_handler->common.function_name));
  } else {
    ZVAL_STR_COPY(callable, fcc->function_handler->common.function_name);
  }
}

ZEND_API const char *zend_get_module_version(const char *module_name) /* {{{ */
{
  zend_string *lname;
  size_t name_len = strlen(module_name);
  zend_module_entry *module;

  lname = zend_string_alloc(name_len, 0);
  zend_str_tolower_copy(ZSTR_VAL(lname), module_name, name_len);
  module = zend_hash_find_ptr(&module_registry, lname);
  zend_string_efree(lname);
  return module ? module->version : NULL;
}
/* }}} */

static zend_always_inline bool is_persistent_class(zend_class_entry *ce) {
  return (ce->type & ZEND_INTERNAL_CLASS)
    && ce->info.internal.module->type == MODULE_PERSISTENT;
}

ZEND_API zend_property_info *zend_declare_typed_property(zend_class_entry *ce, zend_string *name, zval *property, int access_type, zend_string *doc_comment, zend_type type) /* {{{ */
{
  zend_property_info *property_info, *property_info_ptr;

  if (ZEND_TYPE_IS_SET(type)) {
    ce->ce_flags |= ZEND_ACC_HAS_TYPE_HINTS;

    if (access_type & ZEND_ACC_READONLY) {
      ce->ce_flags |= ZEND_ACC_HAS_READONLY_PROPS;
    }
  }

  if (ce->type == ZEND_INTERNAL_CLASS) {
    property_info = pemalloc(sizeof(zend_property_info), 1);
  } else {
    property_info = zend_arena_alloc(&CG(arena), sizeof(zend_property_info));
    if (Z_TYPE_P(property) == IS_CONSTANT_AST) {
      ce->ce_flags &= ~ZEND_ACC_CONSTANTS_UPDATED;
      if (access_type & ZEND_ACC_STATIC) {
        ce->ce_flags |= ZEND_ACC_HAS_AST_STATICS;
      } else {
        ce->ce_flags |= ZEND_ACC_HAS_AST_PROPERTIES;
      }
    }
  }

  if (Z_TYPE_P(property) == IS_STRING && !ZSTR_IS_INTERNED(Z_STR_P(property))) {
    zval_make_interned_string(property);
  }

  if (!(access_type & ZEND_ACC_PPP_MASK)) {
    access_type |= ZEND_ACC_PUBLIC;
  }
  /* Add the protected(set) bit for public readonly properties with no set visibility. */
  if ((access_type & (ZEND_ACC_PUBLIC|ZEND_ACC_READONLY|ZEND_ACC_PPP_SET_MASK)) == (ZEND_ACC_PUBLIC|ZEND_ACC_READONLY)) {
    access_type |= ZEND_ACC_PROTECTED_SET;
  } else if (UNEXPECTED(access_type & ZEND_ACC_PPP_SET_MASK)) {
    if (!ZEND_TYPE_IS_SET(type)) {
      zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
        "Property with asymmetric visibility %s::$%s must have type",
        ZSTR_VAL(ce->name), ZSTR_VAL(name));
    }
    uint32_t get_visibility = zend_visibility_to_set_visibility(access_type & ZEND_ACC_PPP_MASK);
    uint32_t set_visibility = access_type & ZEND_ACC_PPP_SET_MASK;
    if (get_visibility > set_visibility) {
      zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
        "Visibility of property %s::$%s must not be weaker than set visibility",
        ZSTR_VAL(ce->name), ZSTR_VAL(name));
    }
    /* Remove equivalent set visibility. */
    if (((access_type & (ZEND_ACC_PUBLIC|ZEND_ACC_PUBLIC_SET)) == (ZEND_ACC_PUBLIC|ZEND_ACC_PUBLIC_SET))
     || ((access_type & (ZEND_ACC_PROTECTED|ZEND_ACC_PROTECTED_SET)) == (ZEND_ACC_PROTECTED|ZEND_ACC_PROTECTED_SET))
     || ((access_type & (ZEND_ACC_PRIVATE|ZEND_ACC_PRIVATE_SET)) == (ZEND_ACC_PRIVATE|ZEND_ACC_PRIVATE_SET))) {
      access_type &= ~ZEND_ACC_PPP_SET_MASK;
    }
    /* private(set) properties are implicitly final. */
    if (access_type & ZEND_ACC_PRIVATE_SET) {
      access_type |= ZEND_ACC_FINAL;
    }
  }

  /* Virtual properties have no backing storage, the offset should never be used. However, the
   * virtual flag cannot be definitively determined at compile time. Allow using default values
   * anyway, and assert after inheritance that the property is not actually virtual. */
  if (access_type & ZEND_ACC_VIRTUAL) {
    if (Z_TYPE_P(property) == IS_UNDEF) {
      property_info->offset = (uint32_t)-1;
      goto skip_property_storage;
    }
  }
  if (access_type & ZEND_ACC_STATIC) {
    if ((property_info_ptr = zend_hash_find_ptr(&ce->properties_info, name)) != NULL) {
      ZEND_ASSERT(property_info_ptr->flags & ZEND_ACC_STATIC);
      property_info->offset = property_info_ptr->offset;
      zval_ptr_dtor(&ce->default_static_members_table[property_info->offset]);
      if (property_info_ptr->doc_comment && property_info_ptr->ce == ce) {
        zend_string_release(property_info_ptr->doc_comment);
      }
      zend_hash_del(&ce->properties_info, name);
    } else {
      property_info->offset = ce->default_static_members_count++;
      ce->default_static_members_table = perealloc(ce->default_static_members_table, sizeof(zval) * ce->default_static_members_count, ce->type == ZEND_INTERNAL_CLASS);
    }
    ZVAL_COPY_VALUE(&ce->default_static_members_table[property_info->offset], property);
    if (!ZEND_MAP_PTR(ce->static_members_table)) {
      if (ce->type == ZEND_INTERNAL_CLASS &&
          ce->info.internal.module->type == MODULE_PERSISTENT) {
        ZEND_MAP_PTR_NEW(ce->static_members_table);
      }
    }
  } else {
    zval *property_default_ptr;
    if ((property_info_ptr = zend_hash_find_ptr(&ce->properties_info, name)) != NULL) {
      ZEND_ASSERT(!(property_info_ptr->flags & ZEND_ACC_STATIC));
      property_info->offset = property_info_ptr->offset;
      zval_ptr_dtor(&ce->default_properties_table[OBJ_PROP_TO_NUM(property_info->offset)]);
      if (property_info_ptr->doc_comment && property_info_ptr->ce == ce) {
        zend_string_release_ex(property_info_ptr->doc_comment, 1);
      }
      zend_hash_del(&ce->properties_info, name);

      ZEND_ASSERT(ce->type == ZEND_INTERNAL_CLASS);
      ZEND_ASSERT(ce->properties_info_table != NULL);
      ce->properties_info_table[OBJ_PROP_TO_NUM(property_info->offset)] = property_info;
    } else {
      property_info->offset = OBJ_PROP_TO_OFFSET(ce->default_properties_count);
      ce->default_properties_count++;
      ce->default_properties_table = perealloc(ce->default_properties_table, sizeof(zval) * ce->default_properties_count, ce->type == ZEND_INTERNAL_CLASS);

      /* For user classes this is handled during linking */
      if (ce->type == ZEND_INTERNAL_CLASS) {
        ce->properties_info_table = perealloc(ce->properties_info_table, sizeof(zend_property_info *) * ce->default_properties_count, 1);
        ce->properties_info_table[ce->default_properties_count - 1] = property_info;
      }
    }
    property_default_ptr = &ce->default_properties_table[OBJ_PROP_TO_NUM(property_info->offset)];
    ZVAL_COPY_VALUE(property_default_ptr, property);
    Z_PROP_FLAG_P(property_default_ptr) = Z_ISUNDEF_P(property) ? IS_PROP_UNINIT : 0;
  }
skip_property_storage:
  if (ce->type & ZEND_INTERNAL_CLASS) {
    /* Must be interned to avoid ZTS data races */
    if (is_persistent_class(ce)) {
      name = zend_new_interned_string(zend_string_copy(name));
    }

    if (Z_REFCOUNTED_P(property)) {
      zend_error_noreturn(E_CORE_ERROR, "Internal zvals cannot be refcounted");
    }
  }

  if (access_type & ZEND_ACC_PUBLIC) {
    property_info->name = zend_string_copy(name);
  } else if (access_type & ZEND_ACC_PRIVATE) {
    property_info->name = zend_mangle_property_name(ZSTR_VAL(ce->name), ZSTR_LEN(ce->name), ZSTR_VAL(name), ZSTR_LEN(name), is_persistent_class(ce));
  } else {
    ZEND_ASSERT(access_type & ZEND_ACC_PROTECTED);
    property_info->name = zend_mangle_property_name("*", 1, ZSTR_VAL(name), ZSTR_LEN(name), is_persistent_class(ce));
  }

  property_info->name = zend_new_interned_string(property_info->name);
  property_info->flags = access_type;
  property_info->doc_comment = doc_comment;
  property_info->attributes = NULL;
  property_info->prototype = property_info;
  property_info->hooks = NULL;
  property_info->ce = ce;
  property_info->type = type;

  if (is_persistent_class(ce)) {
    zend_normalize_internal_type(&property_info->type);
  }

  zend_hash_update_ptr(&ce->properties_info, name, property_info);

  return property_info;
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_ex(zend_reference *ref, zval *val, bool strict) /* {{{ */
{
  if (UNEXPECTED(!zend_verify_ref_assignable_zval(ref, val, strict))) {
    zval_ptr_dtor(val);
    return FAILURE;
  } else {
    zend_safe_assign_to_variable_noref(&ref->val, val);
    return SUCCESS;
  }
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref(zend_reference *ref, zval *val) /* {{{ */
{
  return zend_try_assign_typed_ref_ex(ref, val, ZEND_ARG_USES_STRICT_TYPES());
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_null(zend_reference *ref) /* {{{ */
{
  zval tmp;

  ZVAL_NULL(&tmp);
  return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_bool(zend_reference *ref, bool val) /* {{{ */
{
  zval tmp;

  ZVAL_BOOL(&tmp, val);
  return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_long(zend_reference *ref, zend_long lval) /* {{{ */
{
  zval tmp;

  ZVAL_LONG(&tmp, lval);
  return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_double(zend_reference *ref, double dval) /* {{{ */
{
  zval tmp;

  ZVAL_DOUBLE(&tmp, dval);
  return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_empty_string(zend_reference *ref) /* {{{ */
{
  zval tmp;

  ZVAL_EMPTY_STRING(&tmp);
  return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_str(zend_reference *ref, zend_string *str) /* {{{ */
{
  zval tmp;

  ZVAL_STR(&tmp, str);
  return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_string(zend_reference *ref, const char *string) /* {{{ */
{
  zval tmp;

  ZVAL_STRING(&tmp, string);
  return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_stringl(zend_reference *ref, const char *string, size_t len) /* {{{ */
{
  zval tmp;

  ZVAL_STRINGL(&tmp, string, len);
  return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_arr(zend_reference *ref, zend_array *arr) /* {{{ */
{
  zval tmp;

  ZVAL_ARR(&tmp, arr);
  return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_res(zend_reference *ref, zend_resource *res) /* {{{ */
{
  zval tmp;

  ZVAL_RES(&tmp, res);
  return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_zval(zend_reference *ref, zval *zv) /* {{{ */
{
  zval tmp;

  ZVAL_COPY_VALUE(&tmp, zv);
  return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */

ZEND_API zend_result zend_try_assign_typed_ref_zval_ex(zend_reference *ref, zval *zv, bool strict) /* {{{ */
{
  zval tmp;

  ZVAL_COPY_VALUE(&tmp, zv);
  return zend_try_assign_typed_ref_ex(ref, &tmp, strict);
}
/* }}} */

ZEND_API void zend_declare_property_ex(zend_class_entry *ce, zend_string *name, zval *property, int access_type, zend_string *doc_comment) /* {{{ */
{
  zend_declare_typed_property(ce, name, property, access_type, doc_comment, (zend_type) ZEND_TYPE_INIT_NONE(0));
}
/* }}} */

ZEND_API void zend_declare_property(zend_class_entry *ce, const char *name, size_t name_length, zval *property, int access_type) /* {{{ */
{
  zend_string *key = zend_string_init(name, name_length, is_persistent_class(ce));
  zend_declare_property_ex(ce, key, property, access_type, NULL);
  zend_string_release(key);
}
/* }}} */

ZEND_API void zend_declare_property_null(zend_class_entry *ce, const char *name, size_t name_length, int access_type) /* {{{ */
{
  zval property;

  ZVAL_NULL(&property);
  zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */

ZEND_API void zend_declare_property_bool(zend_class_entry *ce, const char *name, size_t name_length, zend_long value, int access_type) /* {{{ */
{
  zval property;

  ZVAL_BOOL(&property, value);
  zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */

ZEND_API void zend_declare_property_long(zend_class_entry *ce, const char *name, size_t name_length, zend_long value, int access_type) /* {{{ */
{
  zval property;

  ZVAL_LONG(&property, value);
  zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */

ZEND_API void zend_declare_property_double(zend_class_entry *ce, const char *name, size_t name_length, double value, int access_type) /* {{{ */
{
  zval property;

  ZVAL_DOUBLE(&property, value);
  zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */

ZEND_API void zend_declare_property_string(zend_class_entry *ce, const char *name, size_t name_length, const char *value, int access_type) /* {{{ */
{
  zval property;

  ZVAL_NEW_STR(&property, zend_string_init(value, strlen(value), ce->type & ZEND_INTERNAL_CLASS));
  zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */

ZEND_API void zend_declare_property_stringl(zend_class_entry *ce, const char *name, size_t name_length, const char *value, size_t value_len, int access_type) /* {{{ */
{
  zval property;

  ZVAL_NEW_STR(&property, zend_string_init(value, value_len, ce->type & ZEND_INTERNAL_CLASS));
  zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */

ZEND_API zend_class_constant *zend_declare_typed_class_constant(zend_class_entry *ce, zend_string *name, zval *value, int flags, zend_string *doc_comment, zend_type type) /* {{{ */
{
  zend_class_constant *c;

  if (ce->ce_flags & ZEND_ACC_INTERFACE) {
    if (!(flags & ZEND_ACC_PUBLIC)) {
      zend_error_noreturn(E_COMPILE_ERROR, "Access type for interface constant %s::%s must be public", ZSTR_VAL(ce->name), ZSTR_VAL(name));
    }
  }

  if (zend_string_equals_ci(name, ZSTR_KNOWN(ZEND_STR_CLASS))) {
    zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
        "A class constant must not be called 'class'; it is reserved for class name fetching");
  }

  if (Z_TYPE_P(value) == IS_STRING && !ZSTR_IS_INTERNED(Z_STR_P(value))) {
    zval_make_interned_string(value);
  }

  if (ce->type == ZEND_INTERNAL_CLASS) {
    c = pemalloc(sizeof(zend_class_constant), 1);
    if (ZEND_TYPE_PURE_MASK(type) != MAY_BE_ANY) {
      ZEND_ASSERT(!ZEND_TYPE_CONTAINS_CODE(type, IS_RESOURCE) && "resource is not allowed in a zend_type");
    }
  } else {
    c = zend_arena_alloc(&CG(arena), sizeof(zend_class_constant));
  }
  ZVAL_COPY_VALUE(&c->value, value);
  ZEND_CLASS_CONST_FLAGS(c) = flags;
  c->doc_comment = doc_comment;
  c->attributes = NULL;
  c->ce = ce;
  c->type = type;

  if (Z_TYPE_P(value) == IS_CONSTANT_AST) {
    ce->ce_flags &= ~ZEND_ACC_CONSTANTS_UPDATED;
    ce->ce_flags |= ZEND_ACC_HAS_AST_CONSTANTS;
    if (ce->type == ZEND_INTERNAL_CLASS && !ZEND_MAP_PTR(ce->mutable_data)) {
      ZEND_MAP_PTR_NEW(ce->mutable_data);
    }
  }

  if (!zend_hash_add_ptr(&ce->constants_table, name, c)) {
    zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
      "Cannot redefine class constant %s::%s", ZSTR_VAL(ce->name), ZSTR_VAL(name));
  }

  return c;
}

ZEND_API zend_class_constant *zend_declare_class_constant_ex(zend_class_entry *ce, zend_string *name, zval *value, int flags, zend_string *doc_comment)
{
  return zend_declare_typed_class_constant(ce, name, value, flags, doc_comment, (zend_type) ZEND_TYPE_INIT_NONE(0));
}

ZEND_API void zend_declare_class_constant(zend_class_entry *ce, const char *name, size_t name_length, zval *value) /* {{{ */
{
  zend_string *key;

  if (ce->type == ZEND_INTERNAL_CLASS) {
    key = zend_string_init_interned(name, name_length, 1);
  } else {
    key = zend_string_init(name, name_length, 0);
  }
  zend_declare_class_constant_ex(ce, key, value, ZEND_ACC_PUBLIC, NULL);
  zend_string_release(key);
}
/* }}} */

ZEND_API void zend_declare_class_constant_null(zend_class_entry *ce, const char *name, size_t name_length) /* {{{ */
{
  zval constant;

  ZVAL_NULL(&constant);
  zend_declare_class_constant(ce, name, name_length, &constant);
}
/* }}} */

ZEND_API void zend_declare_class_constant_long(zend_class_entry *ce, const char *name, size_t name_length, zend_long value) /* {{{ */
{
  zval constant;

  ZVAL_LONG(&constant, value);
  zend_declare_class_constant(ce, name, name_length, &constant);
}
/* }}} */

ZEND_API void zend_declare_class_constant_bool(zend_class_entry *ce, const char *name, size_t name_length, bool value) /* {{{ */
{
  zval constant;

  ZVAL_BOOL(&constant, value);
  zend_declare_class_constant(ce, name, name_length, &constant);
}
/* }}} */

ZEND_API void zend_declare_class_constant_double(zend_class_entry *ce, const char *name, size_t name_length, double value) /* {{{ */
{
  zval constant;

  ZVAL_DOUBLE(&constant, value);
  zend_declare_class_constant(ce, name, name_length, &constant);
}
/* }}} */

ZEND_API void zend_declare_class_constant_stringl(zend_class_entry *ce, const char *name, size_t name_length, const char *value, size_t value_length) /* {{{ */
{
  zval constant;

  ZVAL_NEW_STR(&constant, zend_string_init(value, value_length, ce->type & ZEND_INTERNAL_CLASS));
  zend_declare_class_constant(ce, name, name_length, &constant);
}
/* }}} */

ZEND_API void zend_declare_class_constant_string(zend_class_entry *ce, const char *name, size_t name_length, const char *value) /* {{{ */
{
  zend_declare_class_constant_stringl(ce, name, name_length, value, strlen(value));
}
/* }}} */

ZEND_API void zend_update_property_ex(const zend_class_entry *scope, zend_object *object, zend_string *name, zval *value) /* {{{ */
{
  const zend_class_entry *old_scope = EG(fake_scope);

  EG(fake_scope) = scope;

  object->handlers->write_property(object, name, value, NULL);

  EG(fake_scope) = old_scope;
}
/* }}} */

ZEND_API void zend_update_property(const zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zval *value) /* {{{ */
{
  zend_string *property;
  const zend_class_entry *old_scope = EG(fake_scope);

  EG(fake_scope) = scope;

  property = zend_string_init(name, name_length, 0);
  object->handlers->write_property(object, property, value, NULL);
  zend_string_release_ex(property, 0);

  EG(fake_scope) = old_scope;
}
/* }}} */

ZEND_API void zend_update_property_null(const zend_class_entry *scope, zend_object *object, const char *name, size_t name_length) /* {{{ */
{
  zval tmp;

  ZVAL_NULL(&tmp);
  zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */

ZEND_API void zend_unset_property(const zend_class_entry *scope, zend_object *object, const char *name, size_t name_length) /* {{{ */
{
  zend_string *property;
  const zend_class_entry *old_scope = EG(fake_scope);

  EG(fake_scope) = scope;

  property = zend_string_init(name, name_length, 0);
  object->handlers->unset_property(object, property, 0);
  zend_string_release_ex(property, 0);

  EG(fake_scope) = old_scope;
}
/* }}} */

ZEND_API void zend_update_property_bool(const zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zend_long value) /* {{{ */
{
  zval tmp;

  ZVAL_BOOL(&tmp, value);
  zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */

ZEND_API void zend_update_property_long(const zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zend_long value) /* {{{ */
{
  zval tmp;

  ZVAL_LONG(&tmp, value);
  zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */

ZEND_API void zend_update_property_double(const zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, double value) /* {{{ */
{
  zval tmp;

  ZVAL_DOUBLE(&tmp, value);
  zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */

ZEND_API void zend_update_property_str(const zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zend_string *value) /* {{{ */
{
  zval tmp;

  ZVAL_STR(&tmp, value);
  zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */

ZEND_API void zend_update_property_string(const zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, const char *value) /* {{{ */
{
  zval tmp;

  ZVAL_STRING(&tmp, value);
  Z_SET_REFCOUNT(tmp, 0);
  zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */

ZEND_API void zend_update_property_stringl(const zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, const char *value, size_t value_len) /* {{{ */
{
  zval tmp;

  ZVAL_STRINGL(&tmp, value, value_len);
  Z_SET_REFCOUNT(tmp, 0);
  zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */

ZEND_API zend_result zend_update_static_property_ex(zend_class_entry *scope, zend_string *name, zval *value) /* {{{ */
{
  zval *property, tmp;
  zend_property_info *prop_info;

  if (UNEXPECTED(!(scope->ce_flags & ZEND_ACC_CONSTANTS_UPDATED))) {
    if (UNEXPECTED(zend_update_class_constants(scope) != SUCCESS)) {
      return FAILURE;
    }
  }

  const zend_class_entry *old_scope = EG(fake_scope);
  EG(fake_scope) = scope;
  property = zend_std_get_static_property_with_info(scope, name, BP_VAR_W, &prop_info);
  EG(fake_scope) = old_scope;

  if (!property) {
    return FAILURE;
  }

  ZEND_ASSERT(!Z_ISREF_P(value));
  Z_TRY_ADDREF_P(value);
  if (ZEND_TYPE_IS_SET(prop_info->type)) {
    ZVAL_COPY_VALUE(&tmp, value);
    if (!zend_verify_property_type(prop_info, &tmp, /* strict */ 0)) {
      Z_TRY_DELREF_P(value);
      return FAILURE;
    }
    value = &tmp;
  }

  zend_assign_to_variable(property, value, IS_TMP_VAR, /* strict */ 0);
  return SUCCESS;
}
/* }}} */

ZEND_API zend_result zend_update_static_property(zend_class_entry *scope, const char *name, size_t name_length, zval *value) /* {{{ */
{
  zend_string *key = zend_string_init(name, name_length, 0);
  zend_result retval = zend_update_static_property_ex(scope, key, value);
  zend_string_efree(key);
  return retval;
}
/* }}} */

ZEND_API zend_result zend_update_static_property_null(zend_class_entry *scope, const char *name, size_t name_length) /* {{{ */
{
  zval tmp;

  ZVAL_NULL(&tmp);
  return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */

ZEND_API zend_result zend_update_static_property_bool(zend_class_entry *scope, const char *name, size_t name_length, zend_long value) /* {{{ */
{
  zval tmp;

  ZVAL_BOOL(&tmp, value);
  return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */

ZEND_API zend_result zend_update_static_property_long(zend_class_entry *scope, const char *name, size_t name_length, zend_long value) /* {{{ */
{
  zval tmp;

  ZVAL_LONG(&tmp, value);
  return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */

ZEND_API zend_result zend_update_static_property_double(zend_class_entry *scope, const char *name, size_t name_length, double value) /* {{{ */
{
  zval tmp;

  ZVAL_DOUBLE(&tmp, value);
  return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */

ZEND_API zend_result zend_update_static_property_string(zend_class_entry *scope, const char *name, size_t name_length, const char *value) /* {{{ */
{
  zval tmp;

  ZVAL_STRING(&tmp, value);
  Z_SET_REFCOUNT(tmp, 0);
  return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */

ZEND_API zend_result zend_update_static_property_stringl(zend_class_entry *scope, const char *name, size_t name_length, const char *value, size_t value_len) /* {{{ */
{
  zval tmp;

  ZVAL_STRINGL(&tmp, value, value_len);
  Z_SET_REFCOUNT(tmp, 0);
  return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */

ZEND_API zval *zend_read_property_ex(zend_class_entry *scope, zend_object *object, zend_string *name, bool silent, zval *rv) /* {{{ */
{
  zval *value;
  const zend_class_entry *old_scope = EG(fake_scope);

  EG(fake_scope) = scope;

  value = object->handlers->read_property(object, name, silent?BP_VAR_IS:BP_VAR_R, NULL, rv);

  EG(fake_scope) = old_scope;
  return value;
}
/* }}} */

ZEND_API zval *zend_read_property(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, bool silent, zval *rv) /* {{{ */
{
  zval *value;
  zend_string *str;

  str = zend_string_init(name, name_length, 0);
  value = zend_read_property_ex(scope, object, str, silent, rv);
  zend_string_release_ex(str, 0);
  return value;
}
/* }}} */

ZEND_API zval *zend_read_static_property_ex(zend_class_entry *scope, zend_string *name, bool silent) /* {{{ */
{
  zval *property;
  const zend_class_entry *old_scope = EG(fake_scope);

  EG(fake_scope) = scope;
  property = zend_std_get_static_property(scope, name, silent ? BP_VAR_IS : BP_VAR_R);
  EG(fake_scope) = old_scope;

  return property;
}
/* }}} */

ZEND_API zval *zend_read_static_property(zend_class_entry *scope, const char *name, size_t name_length, bool silent) /* {{{ */
{
  zend_string *key = zend_string_init(name, name_length, 0);
  zval *property = zend_read_static_property_ex(scope, key, silent);
  zend_string_efree(key);
  return property;
}
/* }}} */

ZEND_API void zend_save_error_handling(zend_error_handling *current) /* {{{ */
{
  current->handling = EG(error_handling);
  current->exception = EG(exception_class);
}
/* }}} */

ZEND_API void zend_replace_error_handling(zend_error_handling_t error_handling, zend_class_entry *exception_class, zend_error_handling *current) /* {{{ */
{
  if (current) {
    zend_save_error_handling(current);
  }
  ZEND_ASSERT(error_handling == EH_THROW || exception_class == NULL);
  EG(error_handling) = error_handling;
  EG(exception_class) = exception_class;
}
/* }}} */

ZEND_API void zend_restore_error_handling(zend_error_handling *saved) /* {{{ */
{
  EG(error_handling) = saved->handling;
  EG(exception_class) = saved->exception;
}
/* }}} */

ZEND_API ZEND_COLD const char *zend_get_object_type_case(const zend_class_entry *ce, bool upper_case) /* {{{ */
{
  if (ce->ce_flags & ZEND_ACC_TRAIT) {
    return upper_case ? "Trait" : "trait";
  } else if (ce->ce_flags & ZEND_ACC_INTERFACE) {
    return upper_case ? "Interface" : "interface";
  } else if (ce->ce_flags & ZEND_ACC_ENUM) {
    return upper_case ? "Enum" : "enum";
  } else {
    return upper_case ? "Class" : "class";
  }
}
/* }}} */

ZEND_API bool zend_is_iterable(const zval *iterable) /* {{{ */
{
  switch (Z_TYPE_P(iterable)) {
    case IS_ARRAY:
      return 1;
    case IS_OBJECT:
      return zend_class_implements_interface(Z_OBJCE_P(iterable), zend_ce_traversable);
    default:
      return 0;
  }
}
/* }}} */

ZEND_API bool zend_is_countable(const zval *countable) /* {{{ */
{
  switch (Z_TYPE_P(countable)) {
    case IS_ARRAY:
      return 1;
    case IS_OBJECT:
      if (Z_OBJ_HT_P(countable)->count_elements) {
        return 1;
      }

      return zend_class_implements_interface(Z_OBJCE_P(countable), zend_ce_countable);
    default:
      return 0;
  }
}
/* }}} */

static zend_result get_default_via_ast(zval *default_value_zval, const char *default_value) {
  zend_ast *ast;
  zend_arena *ast_arena;

  zend_string *code = zend_string_concat3(
    "<?php ", sizeof("<?php ") - 1, default_value, strlen(default_value), ";", 1);

  ast = zend_compile_string_to_ast(code, &ast_arena, ZSTR_EMPTY_ALLOC());
  zend_string_release(code);

  if (!ast) {
    return FAILURE;
  }

  zend_ast_list *statement_list = zend_ast_get_list(ast);
  zend_ast **const_expr_ast_ptr = &statement_list->child[0];

  zend_arena *original_ast_arena = CG(ast_arena);
  uint32_t original_compiler_options = CG(compiler_options);
  zend_file_context original_file_context;
  CG(ast_arena) = ast_arena;
  /* Disable constant substitution, to make getDefaultValueConstant() work. */
  CG(compiler_options) |= ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION | ZEND_COMPILE_NO_PERSISTENT_CONSTANT_SUBSTITUTION;
  zend_file_context_begin(&original_file_context);
  zend_const_expr_to_zval(default_value_zval, const_expr_ast_ptr, /* allow_dynamic */ true);
  CG(ast_arena) = original_ast_arena;
  CG(compiler_options) = original_compiler_options;
  zend_file_context_end(&original_file_context);

  zend_ast_destroy(ast);
  zend_arena_destroy(ast_arena);

  return SUCCESS;
}

static zend_string *try_parse_string(const char *str, size_t len, char quote) {
  if (len == 0) {
    return ZSTR_EMPTY_ALLOC();
  }

  for (size_t i = 0; i < len; i++) {
    if (str[i] == '\\' || str[i] == quote) {
      return NULL;
    }
  }
  return zend_string_init(str, len, 0);
}

ZEND_API zend_result zend_get_default_from_internal_arg_info(
    zval *default_value_zval, zend_internal_arg_info *arg_info)
{
  const char *default_value = arg_info->default_value;
  if (!default_value) {
    return FAILURE;
  }

  /* Avoid going through the full AST machinery for some simple and common cases. */
  size_t default_value_len = strlen(default_value);
  zend_ulong lval;
  if (default_value_len == sizeof("null")-1
      && !memcmp(default_value, "null", sizeof("null")-1)) {
    ZVAL_NULL(default_value_zval);
    return SUCCESS;
  } else if (default_value_len == sizeof("true")-1
      && !memcmp(default_value, "true", sizeof("true")-1)) {
    ZVAL_TRUE(default_value_zval);
    return SUCCESS;
  } else if (default_value_len == sizeof("false")-1
      && !memcmp(default_value, "false", sizeof("false")-1)) {
    ZVAL_FALSE(default_value_zval);
    return SUCCESS;
  } else if (default_value_len >= 2
      && (default_value[0] == '\'' || default_value[0] == '"')
      && default_value[default_value_len - 1] == default_value[0]) {
    zend_string *str = try_parse_string(
      default_value + 1, default_value_len - 2, default_value[0]);
    if (str) {
      ZVAL_STR(default_value_zval, str);
      return SUCCESS;
    }
  } else if (default_value_len == sizeof("[]")-1
      && !memcmp(default_value, "[]", sizeof("[]")-1)) {
    ZVAL_EMPTY_ARRAY(default_value_zval);
    return SUCCESS;
  } else if (ZEND_HANDLE_NUMERIC_STR(default_value, default_value_len, lval)) {
    ZVAL_LONG(default_value_zval, lval);
    return SUCCESS;
  }

#if 0
  fprintf(stderr, "Evaluating %s via AST\n", default_value);
#endif
  return get_default_via_ast(default_value_zval, default_value);
}

Coverage Report

Created: 2025-07-23 06:33