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gh-132775: Add _PyCode_ReturnsOnlyNone() #132981

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Merged
merged 5 commits into from
Apr 29, 2025
Merged

gh-132775: Add _PyCode_ReturnsOnlyNone() #132981

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dc8230d
Add _PyCode_Returns().
ericsnowcurrently Apr 25, 2025
076b060
_PyCode_Returns() -> _PyCode_ReturnsValue().
ericsnowcurrently Apr 29, 2025
479bedd
Factor out IS_RETURN_OPCODE().
ericsnowcurrently Apr 29, 2025
2c801b6
Add tests.
ericsnowcurrently Apr 29, 2025
8482297
_PyCode_ReturnsValue() -> _PyCode_ReturnsOnlyNone().
ericsnowcurrently Apr 29, 2025
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_PyCode_Returns() -> _PyCode_ReturnsValue().
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@ericsnowcurrently
ericsnowcurrently committed Apr 29, 2025
commit 076b060ffa318fb12d4812eceee253722ed0deb3
2 changes: 1 addition & 1 deletion Include/internal/pycore_code.h
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Expand Up @@ -562,7 +562,7 @@ extern int _Py_ClearUnusedTLBC(PyInterpreterState *interp);
#endif


PyAPI_FUNC(int) _PyCode_Returns(PyCodeObject *);
PyAPI_FUNC(int) _PyCode_ReturnsValue(PyCodeObject *);


#ifdef __cplusplus
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5 changes: 4 additions & 1 deletion Objects/codeobject.c
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Expand Up @@ -1690,8 +1690,11 @@ PyCode_GetFreevars(PyCodeObject *code)
}


/* Here "value" means a non-None value, since a bare return is identical
* to returning None explicitly. Likewise a missing return statement
* at the end of the function is turned into "return None". */
int
_PyCode_Returns(PyCodeObject *co)
_PyCode_ReturnsValue(PyCodeObject *co)
{
// Look up None in co_consts.
Py_ssize_t nconsts = PyTuple_Size(co->co_consts);
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