/src/cpython/Objects/templateobject.c

Source
/* t-string Template object implementation */

#include "Python.h"
#include "pycore_interpolation.h" // _PyInterpolation_CheckExact()
#include "pycore_runtime.h"       // _Py_STR()
#include "pycore_template.h"

typedef struct {
    PyObject_HEAD
    PyObject *stringsiter;
    PyObject *interpolationsiter;
    int from_strings;
} templateiterobject;

#define templateiterobject_CAST(op) \
    (assert(_PyTemplateIter_CheckExact(op)), _Py_CAST(templateiterobject*, (op)))

static PyObject *
templateiter_next(PyObject *op)
{
    templateiterobject *self = templateiterobject_CAST(op);
    PyObject *item;
    if (self->from_strings) {
        item = PyIter_Next(self->stringsiter);
        self->from_strings = 0;
        if (item == NULL) {
            return NULL;
        }
        if (PyUnicode_GET_LENGTH(item) == 0) {
            Py_SETREF(item, PyIter_Next(self->interpolationsiter));
            self->from_strings = 1;
        }
    }
    else {
        item = PyIter_Next(self->interpolationsiter);
        self->from_strings = 1;
    }
    return item;
}

static void
templateiter_dealloc(PyObject *op)
{
    PyObject_GC_UnTrack(op);
    Py_TYPE(op)->tp_clear(op);
    Py_TYPE(op)->tp_free(op);
}

static int
templateiter_clear(PyObject *op)
{
    templateiterobject *self = templateiterobject_CAST(op);
    Py_CLEAR(self->stringsiter);
    Py_CLEAR(self->interpolationsiter);
    return 0;
}

static int
templateiter_traverse(PyObject *op, visitproc visit, void *arg)
{
    templateiterobject *self = templateiterobject_CAST(op);
    Py_VISIT(self->stringsiter);
    Py_VISIT(self->interpolationsiter);
    return 0;
}

PyTypeObject _PyTemplateIter_Type = {
    PyVarObject_HEAD_INIT(NULL, 0)
    .tp_name = "string.templatelib.TemplateIter",
    .tp_doc = PyDoc_STR("Template iterator object"),
    .tp_basicsize = sizeof(templateiterobject),
    .tp_itemsize = 0,
    .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
    .tp_alloc = PyType_GenericAlloc,
    .tp_dealloc = templateiter_dealloc,
    .tp_clear = templateiter_clear,
    .tp_free = PyObject_GC_Del,
    .tp_traverse = templateiter_traverse,
    .tp_iter = PyObject_SelfIter,
    .tp_iternext = templateiter_next,
};

typedef struct {
    PyObject_HEAD
    PyObject *strings;
    PyObject *interpolations;
} templateobject;

#define templateobject_CAST(op) \
    (assert(_PyTemplate_CheckExact(op)), _Py_CAST(templateobject*, (op)))

static PyObject *
template_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
    if (kwds != NULL) {
        PyErr_SetString(PyExc_TypeError, "Template.__new__ only accepts *args arguments");
        return NULL;
    }

    Py_ssize_t argslen = PyTuple_GET_SIZE(args);
    Py_ssize_t stringslen = 0;
    Py_ssize_t interpolationslen = 0;
    int last_was_str = 0;

    for (Py_ssize_t i = 0; i < argslen; i++) {
        PyObject *item = PyTuple_GET_ITEM(args, i);
        if (PyUnicode_Check(item)) {
            if (!last_was_str) {
                stringslen++;
            }
            last_was_str = 1;
        }
        else if (_PyInterpolation_CheckExact(item)) {
            if (!last_was_str) {
                stringslen++;
            }
            interpolationslen++;
            last_was_str = 0;
        }
        else {
            PyErr_Format(
                PyExc_TypeError,
                "Template.__new__ *args need to be of type 'str' or 'Interpolation', got %T",
                item);
            return NULL;
        }
    }
    if (!last_was_str) {
        stringslen++;
    }

    PyObject *strings = PyTuple_New(stringslen);
    if (!strings) {
        return NULL;
    }

    PyObject *interpolations = PyTuple_New(interpolationslen);
    if (!interpolations) {
        Py_DECREF(strings);
        return NULL;
    }

    last_was_str = 0;
    Py_ssize_t stringsidx = 0, interpolationsidx = 0;
    for (Py_ssize_t i = 0; i < argslen; i++) {
        PyObject *item = PyTuple_GET_ITEM(args, i);
        if (PyUnicode_Check(item)) {
            if (last_was_str) {
                PyObject *laststring = PyTuple_GET_ITEM(strings, stringsidx - 1);
                PyObject *concat = PyUnicode_Concat(laststring, item);
                if (!concat) {
                    Py_DECREF(strings);
                    Py_DECREF(interpolations);
                    return NULL;
                }
                /* Replace laststring with concat */
                PyTuple_SET_ITEM(strings, stringsidx - 1, concat);
                Py_DECREF(laststring);
            }
            else {
                PyTuple_SET_ITEM(strings, stringsidx++, Py_NewRef(item));
            }
            last_was_str = 1;
        }
        else if (_PyInterpolation_CheckExact(item)) {
            if (!last_was_str) {
                _Py_DECLARE_STR(empty, "");
                PyTuple_SET_ITEM(strings, stringsidx++, &_Py_STR(empty));
            }
            PyTuple_SET_ITEM(interpolations, interpolationsidx++, Py_NewRef(item));
            last_was_str = 0;
        }
    }
    if (!last_was_str) {
        _Py_DECLARE_STR(empty, "");
        PyTuple_SET_ITEM(strings, stringsidx++, &_Py_STR(empty));
    }

    PyObject *template = _PyTemplate_Build(strings, interpolations);
    Py_DECREF(strings);
    Py_DECREF(interpolations);
    return template;
}

static void
template_dealloc(PyObject *op)
{
    PyObject_GC_UnTrack(op);
    Py_TYPE(op)->tp_clear(op);
    Py_TYPE(op)->tp_free(op);
}

static int
template_clear(PyObject *op)
{
    templateobject *self = templateobject_CAST(op);
    Py_CLEAR(self->strings);
    Py_CLEAR(self->interpolations);
    return 0;
}

static int
template_traverse(PyObject *op, visitproc visit, void *arg)
{
    templateobject *self = templateobject_CAST(op);
    Py_VISIT(self->strings);
    Py_VISIT(self->interpolations);
    return 0;
}

static PyObject *
template_repr(PyObject *op)
{
    templateobject *self = templateobject_CAST(op);
    return PyUnicode_FromFormat("%s(strings=%R, interpolations=%R)",
                                _PyType_Name(Py_TYPE(self)),
                                self->strings,
                                self->interpolations);
}

static PyObject *
template_iter(PyObject *op)
{
    templateobject *self = templateobject_CAST(op);
    templateiterobject *iter = PyObject_GC_New(templateiterobject, &_PyTemplateIter_Type);
    if (iter == NULL) {
        return NULL;
    }

    PyObject *stringsiter = PyObject_GetIter(self->strings);
    if (stringsiter == NULL) {
        Py_DECREF(iter);
        return NULL;
    }

    PyObject *interpolationsiter = PyObject_GetIter(self->interpolations);
    if (interpolationsiter == NULL) {
        Py_DECREF(iter);
        Py_DECREF(stringsiter);
        return NULL;
    }

    iter->stringsiter = stringsiter;
    iter->interpolationsiter = interpolationsiter;
    iter->from_strings = 1;
    PyObject_GC_Track(iter);
    return (PyObject *)iter;
}

static PyObject *
template_strings_concat(PyObject *left, PyObject *right)
{
    Py_ssize_t left_stringslen = PyTuple_GET_SIZE(left);
    PyObject *left_laststring = PyTuple_GET_ITEM(left, left_stringslen - 1);
    Py_ssize_t right_stringslen = PyTuple_GET_SIZE(right);
    PyObject *right_firststring = PyTuple_GET_ITEM(right, 0);

    PyObject *concat = PyUnicode_Concat(left_laststring, right_firststring);
    if (concat == NULL) {
        return NULL;
    }

    PyObject *newstrings = PyTuple_New(left_stringslen + right_stringslen - 1);
    if (newstrings == NULL) {
        Py_DECREF(concat);
        return NULL;
    }

    Py_ssize_t index = 0;
    for (Py_ssize_t i = 0; i < left_stringslen - 1; i++) {
        PyTuple_SET_ITEM(newstrings, index++, Py_NewRef(PyTuple_GET_ITEM(left, i)));
    }
    PyTuple_SET_ITEM(newstrings, index++, concat);
    for (Py_ssize_t i = 1; i < right_stringslen; i++) {
        PyTuple_SET_ITEM(newstrings, index++, Py_NewRef(PyTuple_GET_ITEM(right, i)));
    }

    return newstrings;
}

static PyObject *
template_concat_templates(templateobject *self, templateobject *other)
{
    PyObject *newstrings = template_strings_concat(self->strings, other->strings);
    if (newstrings == NULL) {
        return NULL;
    }

    PyObject *newinterpolations = PySequence_Concat(self->interpolations, other->interpolations);
    if (newinterpolations == NULL) {
        Py_DECREF(newstrings);
        return NULL;
    }

    PyObject *newtemplate = _PyTemplate_Build(newstrings, newinterpolations);
    Py_DECREF(newstrings);
    Py_DECREF(newinterpolations);
    return newtemplate;
}

PyObject *
_PyTemplate_Concat(PyObject *self, PyObject *other)
{
    if (_PyTemplate_CheckExact(self) && _PyTemplate_CheckExact(other)) {
        return template_concat_templates((templateobject *) self, (templateobject *) other);
    }

    PyErr_Format(PyExc_TypeError,
        "can only concatenate string.templatelib.Template (not \"%T\") to string.templatelib.Template",
        other);
    return NULL;
}

static PyObject *
template_values_get(PyObject *op, void *Py_UNUSED(data))
{
    templateobject *self = templateobject_CAST(op);

    Py_ssize_t len = PyTuple_GET_SIZE(self->interpolations);
    PyObject *values = PyTuple_New(PyTuple_GET_SIZE(self->interpolations));
    if (values == NULL) {
        return NULL;
    }

    for (Py_ssize_t i = 0; i < len; i++) {
        PyObject *item = PyTuple_GET_ITEM(self->interpolations, i);
        PyTuple_SET_ITEM(values, i, _PyInterpolation_GetValueRef(item));
    }

    return values;
}

static PyMemberDef template_members[] = {
    {"strings", Py_T_OBJECT_EX, offsetof(templateobject, strings), Py_READONLY, "Strings"},
    {"interpolations", Py_T_OBJECT_EX, offsetof(templateobject, interpolations), Py_READONLY, "Interpolations"},
    {NULL},
};

static PyGetSetDef template_getset[] = {
    {"values", template_values_get, NULL,
     PyDoc_STR("Values of interpolations"), NULL},
    {NULL},
};

static PySequenceMethods template_as_sequence = {
    .sq_concat = _PyTemplate_Concat,
};

static PyObject*
template_reduce(PyObject *op, PyObject *Py_UNUSED(dummy))
{
    PyObject *mod = PyImport_ImportModule("string.templatelib");
    if (mod == NULL) {
        return NULL;
    }
    PyObject *func = PyObject_GetAttrString(mod, "_template_unpickle");
    Py_DECREF(mod);
    if (func == NULL) {
        return NULL;
    }

    templateobject *self = templateobject_CAST(op);
    PyObject *result = Py_BuildValue("O(OO)",
                                     func,
                                     self->strings,
                                     self->interpolations);

    Py_DECREF(func);
    return result;
}

static PyMethodDef template_methods[] = {
    {"__reduce__", template_reduce, METH_NOARGS, NULL},
    {"__class_getitem__", Py_GenericAlias,
        METH_O|METH_CLASS, PyDoc_STR("See PEP 585")},
    {NULL, NULL},
};

PyTypeObject _PyTemplate_Type = {
    PyVarObject_HEAD_INIT(NULL, 0)
    .tp_name = "string.templatelib.Template",
    .tp_doc = PyDoc_STR("Template object"),
    .tp_basicsize = sizeof(templateobject),
    .tp_itemsize = 0,
    .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
    .tp_as_sequence = &template_as_sequence,
    .tp_new = template_new,
    .tp_alloc = PyType_GenericAlloc,
    .tp_dealloc = template_dealloc,
    .tp_clear = template_clear,
    .tp_free = PyObject_GC_Del,
    .tp_repr = template_repr,
    .tp_members = template_members,
    .tp_methods = template_methods,
    .tp_getset = template_getset,
    .tp_iter = template_iter,
    .tp_traverse = template_traverse,
};

PyObject *
_PyTemplate_Build(PyObject *strings, PyObject *interpolations)
{
    templateobject *template = PyObject_GC_New(templateobject, &_PyTemplate_Type);
    if (template == NULL) {
        return NULL;
    }

    template->strings = Py_NewRef(strings);
    template->interpolations = Py_NewRef(interpolations);
    PyObject_GC_Track(template);
    return (PyObject *) template;
}

Coverage Report

Created: 2026-01-09 06:26

Line	Count	Source
1		/* t-string Template object implementation */
2
3		#include "Python.h"
4		#include "pycore_interpolation.h" // _PyInterpolation_CheckExact()
5		#include "pycore_runtime.h" // _Py_STR()
6		#include "pycore_template.h"
7
8		typedef struct {
9		PyObject_HEAD
10		PyObject *stringsiter;
11		PyObject *interpolationsiter;
12		int from_strings;
13		} templateiterobject;
14
15		#define templateiterobject_CAST(op) \
16	0	(assert(_PyTemplateIter_CheckExact(op)), _Py_CAST(templateiterobject*, (op)))
17
18		static PyObject *
19		templateiter_next(PyObject *op)
20	0	{
21	0	templateiterobject *self = templateiterobject_CAST(op);
22	0	PyObject *item;
23	0	if (self->from_strings) {
24	0	item = PyIter_Next(self->stringsiter);
25	0	self->from_strings = 0;
26	0	if (item == NULL) {
27	0	return NULL;
28	0	}
29	0	if (PyUnicode_GET_LENGTH(item) == 0) {
30	0	Py_SETREF(item, PyIter_Next(self->interpolationsiter));
31	0	self->from_strings = 1;
32	0	}
33	0	}
34	0	else {
35	0	item = PyIter_Next(self->interpolationsiter);
36	0	self->from_strings = 1;
37	0	}
38	0	return item;
39	0	}
40
41		static void
42		templateiter_dealloc(PyObject *op)
43	0	{
44	0	PyObject_GC_UnTrack(op);
45	0	Py_TYPE(op)->tp_clear(op);
46	0	Py_TYPE(op)->tp_free(op);
47	0	}
48
49		static int
50		templateiter_clear(PyObject *op)
51	0	{
52	0	templateiterobject *self = templateiterobject_CAST(op);
53	0	Py_CLEAR(self->stringsiter);
54	0	Py_CLEAR(self->interpolationsiter);
55	0	return 0;
56	0	}
57
58		static int
59		templateiter_traverse(PyObject op, visitproc visit, void arg)
60	0	{
61	0	templateiterobject *self = templateiterobject_CAST(op);
62	0	Py_VISIT(self->stringsiter);
63	0	Py_VISIT(self->interpolationsiter);
64	0	return 0;
65	0	}
66
67		PyTypeObject _PyTemplateIter_Type = {
68		PyVarObject_HEAD_INIT(NULL, 0)
69		.tp_name = "string.templatelib.TemplateIter",
70		.tp_doc = PyDoc_STR("Template iterator object"),
71		.tp_basicsize = sizeof(templateiterobject),
72		.tp_itemsize = 0,
73		.tp_flags = Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC,
74		.tp_alloc = PyType_GenericAlloc,
75		.tp_dealloc = templateiter_dealloc,
76		.tp_clear = templateiter_clear,
77		.tp_free = PyObject_GC_Del,
78		.tp_traverse = templateiter_traverse,
79		.tp_iter = PyObject_SelfIter,
80		.tp_iternext = templateiter_next,
81		};
82
83		typedef struct {
84		PyObject_HEAD
85		PyObject *strings;
86		PyObject *interpolations;
87		} templateobject;
88
89		#define templateobject_CAST(op) \
90	2	(assert(_PyTemplate_CheckExact(op)), _Py_CAST(templateobject*, (op)))
91
92		static PyObject *
93		template_new(PyTypeObject type, PyObject args, PyObject *kwds)
94	0	{
95	0	if (kwds != NULL) {
96	0	PyErr_SetString(PyExc_TypeError, "Template.__new__ only accepts *args arguments");
97	0	return NULL;
98	0	}
99
100	0	Py_ssize_t argslen = PyTuple_GET_SIZE(args);
101	0	Py_ssize_t stringslen = 0;
102	0	Py_ssize_t interpolationslen = 0;
103	0	int last_was_str = 0;
104
105	0	for (Py_ssize_t i = 0; i < argslen; i++) {
106	0	PyObject *item = PyTuple_GET_ITEM(args, i);
107	0	if (PyUnicode_Check(item)) {
108	0	if (!last_was_str) {
109	0	stringslen++;
110	0	}
111	0	last_was_str = 1;
112	0	}
113	0	else if (_PyInterpolation_CheckExact(item)) {
114	0	if (!last_was_str) {
115	0	stringslen++;
116	0	}
117	0	interpolationslen++;
118	0	last_was_str = 0;
119	0	}
120	0	else {
121	0	PyErr_Format(
122	0	PyExc_TypeError,
123	0	"Template.__new__ *args need to be of type 'str' or 'Interpolation', got %T",
124	0	item);
125	0	return NULL;
126	0	}
127	0	}
128	0	if (!last_was_str) {
129	0	stringslen++;
130	0	}
131
132	0	PyObject *strings = PyTuple_New(stringslen);
133	0	if (!strings) {
134	0	return NULL;
135	0	}
136
137	0	PyObject *interpolations = PyTuple_New(interpolationslen);
138	0	if (!interpolations) {
139	0	Py_DECREF(strings);
140	0	return NULL;
141	0	}
142
143	0	last_was_str = 0;
144	0	Py_ssize_t stringsidx = 0, interpolationsidx = 0;
145	0	for (Py_ssize_t i = 0; i < argslen; i++) {
146	0	PyObject *item = PyTuple_GET_ITEM(args, i);
147	0	if (PyUnicode_Check(item)) {
148	0	if (last_was_str) {
149	0	PyObject *laststring = PyTuple_GET_ITEM(strings, stringsidx - 1);
150	0	PyObject *concat = PyUnicode_Concat(laststring, item);
151	0	if (!concat) {
152	0	Py_DECREF(strings);
153	0	Py_DECREF(interpolations);
154	0	return NULL;
155	0	}
156		/* Replace laststring with concat */
157	0	PyTuple_SET_ITEM(strings, stringsidx - 1, concat);
158	0	Py_DECREF(laststring);
159	0	}
160	0	else {
161	0	PyTuple_SET_ITEM(strings, stringsidx++, Py_NewRef(item));
162	0	}
163	0	last_was_str = 1;
164	0	}
165	0	else if (_PyInterpolation_CheckExact(item)) {
166	0	if (!last_was_str) {
167	0	_Py_DECLARE_STR(empty, "");
168	0	PyTuple_SET_ITEM(strings, stringsidx++, &_Py_STR(empty));
169	0	}
170	0	PyTuple_SET_ITEM(interpolations, interpolationsidx++, Py_NewRef(item));
171	0	last_was_str = 0;
172	0	}
173	0	}
174	0	if (!last_was_str) {
175	0	_Py_DECLARE_STR(empty, "");
176	0	PyTuple_SET_ITEM(strings, stringsidx++, &_Py_STR(empty));
177	0	}
178
179	0	PyObject *template = _PyTemplate_Build(strings, interpolations);
180	0	Py_DECREF(strings);
181	0	Py_DECREF(interpolations);
182	0	return template;
183	0	}
184
185		static void
186		template_dealloc(PyObject *op)
187	2	{
188	2	PyObject_GC_UnTrack(op);
189	2	Py_TYPE(op)->tp_clear(op);
190	2	Py_TYPE(op)->tp_free(op);
191	2	}
192
193		static int
194		template_clear(PyObject *op)
195	2	{
196	2	templateobject *self = templateobject_CAST(op);
197	2	Py_CLEAR(self->strings);
198	2	Py_CLEAR(self->interpolations);
199	2	return 0;
200	2	}
201
202		static int
203		template_traverse(PyObject op, visitproc visit, void arg)
204	0	{
205	0	templateobject *self = templateobject_CAST(op);
206	0	Py_VISIT(self->strings);
207	0	Py_VISIT(self->interpolations);
208	0	return 0;
209	0	}
210
211		static PyObject *
212		template_repr(PyObject *op)
213	0	{
214	0	templateobject *self = templateobject_CAST(op);
215	0	return PyUnicode_FromFormat("%s(strings=%R, interpolations=%R)",
216	0	_PyType_Name(Py_TYPE(self)),
217	0	self->strings,
218	0	self->interpolations);
219	0	}
220
221		static PyObject *
222		template_iter(PyObject *op)
223	0	{
224	0	templateobject *self = templateobject_CAST(op);
225	0	templateiterobject *iter = PyObject_GC_New(templateiterobject, &_PyTemplateIter_Type);
226	0	if (iter == NULL) {
227	0	return NULL;
228	0	}
229
230	0	PyObject *stringsiter = PyObject_GetIter(self->strings);
231	0	if (stringsiter == NULL) {
232	0	Py_DECREF(iter);
233	0	return NULL;
234	0	}
235
236	0	PyObject *interpolationsiter = PyObject_GetIter(self->interpolations);
237	0	if (interpolationsiter == NULL) {
238	0	Py_DECREF(iter);
239	0	Py_DECREF(stringsiter);
240	0	return NULL;
241	0	}
242
243	0	iter->stringsiter = stringsiter;
244	0	iter->interpolationsiter = interpolationsiter;
245	0	iter->from_strings = 1;
246	0	PyObject_GC_Track(iter);
247	0	return (PyObject *)iter;
248	0	}
249
250		static PyObject *
251		template_strings_concat(PyObject left, PyObject right)
252	0	{
253	0	Py_ssize_t left_stringslen = PyTuple_GET_SIZE(left);
254	0	PyObject *left_laststring = PyTuple_GET_ITEM(left, left_stringslen - 1);
255	0	Py_ssize_t right_stringslen = PyTuple_GET_SIZE(right);
256	0	PyObject *right_firststring = PyTuple_GET_ITEM(right, 0);
257
258	0	PyObject *concat = PyUnicode_Concat(left_laststring, right_firststring);
259	0	if (concat == NULL) {
260	0	return NULL;
261	0	}
262
263	0	PyObject *newstrings = PyTuple_New(left_stringslen + right_stringslen - 1);
264	0	if (newstrings == NULL) {
265	0	Py_DECREF(concat);
266	0	return NULL;
267	0	}
268
269	0	Py_ssize_t index = 0;
270	0	for (Py_ssize_t i = 0; i < left_stringslen - 1; i++) {
271	0	PyTuple_SET_ITEM(newstrings, index++, Py_NewRef(PyTuple_GET_ITEM(left, i)));
272	0	}
273	0	PyTuple_SET_ITEM(newstrings, index++, concat);
274	0	for (Py_ssize_t i = 1; i < right_stringslen; i++) {
275	0	PyTuple_SET_ITEM(newstrings, index++, Py_NewRef(PyTuple_GET_ITEM(right, i)));
276	0	}
277
278	0	return newstrings;
279	0	}
280
281		static PyObject *
282		template_concat_templates(templateobject self, templateobject other)
283	0	{
284	0	PyObject *newstrings = template_strings_concat(self->strings, other->strings);
285	0	if (newstrings == NULL) {
286	0	return NULL;
287	0	}
288
289	0	PyObject *newinterpolations = PySequence_Concat(self->interpolations, other->interpolations);
290	0	if (newinterpolations == NULL) {
291	0	Py_DECREF(newstrings);
292	0	return NULL;
293	0	}
294
295	0	PyObject *newtemplate = _PyTemplate_Build(newstrings, newinterpolations);
296	0	Py_DECREF(newstrings);
297	0	Py_DECREF(newinterpolations);
298	0	return newtemplate;
299	0	}
300
301		PyObject *
302		_PyTemplate_Concat(PyObject self, PyObject other)
303	0	{
304	0	if (_PyTemplate_CheckExact(self) && _PyTemplate_CheckExact(other)) {
305	0	return template_concat_templates((templateobject ) self, (templateobject ) other);
306	0	}
307
308	0	PyErr_Format(PyExc_TypeError,
309	0	"can only concatenate string.templatelib.Template (not \"%T\") to string.templatelib.Template",
310	0	other);
311	0	return NULL;
312	0	}
313
314		static PyObject *
315		template_values_get(PyObject op, void Py_UNUSED(data))
316	0	{
317	0	templateobject *self = templateobject_CAST(op);
318
319	0	Py_ssize_t len = PyTuple_GET_SIZE(self->interpolations);
320	0	PyObject *values = PyTuple_New(PyTuple_GET_SIZE(self->interpolations));
321	0	if (values == NULL) {
322	0	return NULL;
323	0	}
324
325	0	for (Py_ssize_t i = 0; i < len; i++) {
326	0	PyObject *item = PyTuple_GET_ITEM(self->interpolations, i);
327	0	PyTuple_SET_ITEM(values, i, _PyInterpolation_GetValueRef(item));
328	0	}
329
330	0	return values;
331	0	}
332
333		static PyMemberDef template_members[] = {
334		{"strings", Py_T_OBJECT_EX, offsetof(templateobject, strings), Py_READONLY, "Strings"},
335		{"interpolations", Py_T_OBJECT_EX, offsetof(templateobject, interpolations), Py_READONLY, "Interpolations"},
336		{NULL},
337		};
338
339		static PyGetSetDef template_getset[] = {
340		{"values", template_values_get, NULL,
341		PyDoc_STR("Values of interpolations"), NULL},
342		{NULL},
343		};
344
345		static PySequenceMethods template_as_sequence = {
346		.sq_concat = _PyTemplate_Concat,
347		};
348
349		static PyObject*
350		template_reduce(PyObject op, PyObject Py_UNUSED(dummy))
351	0	{
352	0	PyObject *mod = PyImport_ImportModule("string.templatelib");
353	0	if (mod == NULL) {
354	0	return NULL;
355	0	}
356	0	PyObject *func = PyObject_GetAttrString(mod, "_template_unpickle");
357	0	Py_DECREF(mod);
358	0	if (func == NULL) {
359	0	return NULL;
360	0	}
361
362	0	templateobject *self = templateobject_CAST(op);
363	0	PyObject *result = Py_BuildValue("O(OO)",
364	0	func,
365	0	self->strings,
366	0	self->interpolations);
367
368	0	Py_DECREF(func);
369	0	return result;
370	0	}
371
372		static PyMethodDef template_methods[] = {
373		{"__reduce__", template_reduce, METH_NOARGS, NULL},
374		{"__class_getitem__", Py_GenericAlias,
375		METH_O\|METH_CLASS, PyDoc_STR("See PEP 585")},
376		{NULL, NULL},
377		};
378
379		PyTypeObject _PyTemplate_Type = {
380		PyVarObject_HEAD_INIT(NULL, 0)
381		.tp_name = "string.templatelib.Template",
382		.tp_doc = PyDoc_STR("Template object"),
383		.tp_basicsize = sizeof(templateobject),
384		.tp_itemsize = 0,
385		.tp_flags = Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC,
386		.tp_as_sequence = &template_as_sequence,
387		.tp_new = template_new,
388		.tp_alloc = PyType_GenericAlloc,
389		.tp_dealloc = template_dealloc,
390		.tp_clear = template_clear,
391		.tp_free = PyObject_GC_Del,
392		.tp_repr = template_repr,
393		.tp_members = template_members,
394		.tp_methods = template_methods,
395		.tp_getset = template_getset,
396		.tp_iter = template_iter,
397		.tp_traverse = template_traverse,
398		};
399
400		PyObject *
401		_PyTemplate_Build(PyObject strings, PyObject interpolations)
402	2	{
403	2	templateobject *template = PyObject_GC_New(templateobject, &_PyTemplate_Type);
404	2	if (template == NULL) {
405	0	return NULL;
406	0	}
407
408	2	template->strings = Py_NewRef(strings);
409	2	template->interpolations = Py_NewRef(interpolations);
410	2	PyObject_GC_Track(template);
411	2	return (PyObject *) template;
412	2	}