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gh-95991: Add some infrastructure for testing Limited API in _testcapi (GH-95992)

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- Limited API needs to be enabled per source file
- Some builds don't support Limited API, so Limited API tests must be skipped on those builds
  (currently this is `Py_TRACE_REFS`, but that may change.)
- `Py_LIMITED_API` must be defined before `<Python.h>` is included.

This puts the hoop-jumping in `testcapi/parts.h`, so individual
test files can be relatively simple. (Currently that's only
`vectorcall_limited.c`, imagine more.)
This commit is contained in:
Petr Viktorin 2022-08-17 13:48:43 +02:00 • committed by GitHub
parent 7276ca25f5
commit 0f2b469ce1
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7 changed files with 65 additions and 24 deletions
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12
Modules/_testcapimodule.c
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@ -6544,9 +6544,6 @@ PyInit__testcapi(void)
if (_PyTestCapi_Init_Vectorcall(m) < 0) {
return NULL;
}
if (_PyTestCapi_Init_VectorcallLimited(m) < 0) {
return NULL;
}
if (_PyTestCapi_Init_Heaptype(m) < 0) {
return NULL;
}
@ -6554,6 +6551,15 @@ PyInit__testcapi(void)
return NULL;
}
#ifndef LIMITED_API_AVAILABLE
PyModule_AddObjectRef(m, "LIMITED_API_AVAILABLE", Py_False);
#else
PyModule_AddObjectRef(m, "LIMITED_API_AVAILABLE", Py_True);
if (_PyTestCapi_Init_VectorcallLimited(m) < 0) {
return NULL;
}
#endif
PyState_AddModule(m, &_testcapimodule);
return m;
}