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gh-103763: Implement PEP 695 (#103764)

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This implements PEP 695, Type Parameter Syntax. It adds support for:

- Generic functions (def func[T](): ...)
- Generic classes (class X[T](): ...)
- Type aliases (type X = ...)
- New scoping when the new syntax is used within a class body
- Compiler and interpreter changes to support the new syntax and scoping rules 

Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
Co-authored-by: Eric Traut <eric@traut.com>
Co-authored-by: Larry Hastings <larry@hastings.org>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
This commit is contained in:
Jelle Zijlstra 2023-05-15 20:36:23 -07:00 • committed by GitHub
parent fdafdc235e
commit 24d8b88420
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56 changed files with 11405 additions and 5469 deletions
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28
Modules/_typingmodule.c
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@ -1,6 +1,11 @@
/* typing accelerator C extension: _typing module. */
#ifndef Py_BUILD_CORE
#define Py_BUILD_CORE
#endif
#include "Python.h"
#include "internal/pycore_interp.h"
#include "clinic/_typingmodule.c.h"
/*[clinic input]
@ -35,7 +40,30 @@ static PyMethodDef typing_methods[] = {
PyDoc_STRVAR(typing_doc,
"Accelerators for the typing module.\n");
static int
_typing_exec(PyObject *m)
{
PyInterpreterState *interp = PyInterpreterState_Get();
#define EXPORT_TYPE(name, typename) \
if (PyModule_AddObjectRef(m, name, \
(PyObject *)interp->cached_objects.typename) < 0) { \
return -1; \
}
EXPORT_TYPE("TypeVar", typevar_type);
EXPORT_TYPE("TypeVarTuple", typevartuple_type);
EXPORT_TYPE("ParamSpec", paramspec_type);
EXPORT_TYPE("ParamSpecArgs", paramspecargs_type);
EXPORT_TYPE("ParamSpecKwargs", paramspeckwargs_type);
EXPORT_TYPE("TypeAliasType", typealias_type);
EXPORT_TYPE("Generic", generic_type);
#undef EXPORT_TYPE
return 0;
}
static struct PyModuleDef_Slot _typingmodule_slots[] = {
{Py_mod_exec, _typing_exec},
{Py_mod_multiple_interpreters, Py_MOD_PER_INTERPRETER_GIL_SUPPORTED},
{0, NULL}
};