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authorVictor Stinner <vstinner@python.org>2020-04-07 23:42:27 (GMT)
committerGitHub <noreply@github.com>2020-04-07 23:42:27 (GMT)
commit45ec5b99aefa54552947049086e87ec01bc2fc9a (patch)
tree991c703174190872d806ae18387e69d62ff69c76 /Include
parentef5c615f5ae72c4f6979159c94da46afefbfab9a (diff)
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bpo-40170: PyType_HasFeature() now always calls PyType_GetFlags() (GH-19378)
PyType_HasFeature() now always calls PyType_GetFlags() to hide implementation details. Previously, it accessed directly the PyTypeObject.tp_flags member when the limited C API was not used. Add fast inlined version _PyType_HasFeature() and _PyType_IS_GC() for object.c and typeobject.c.
Diffstat (limited to 'Include')
-rw-r--r--Include/internal/pycore_object.h11
-rw-r--r--Include/object.h4
2 files changed, 10 insertions, 5 deletions
diff --git a/Include/internal/pycore_object.h b/Include/internal/pycore_object.h
index 002b700..5c3d3ca 100644
--- a/Include/internal/pycore_object.h
+++ b/Include/internal/pycore_object.h
@@ -8,7 +8,7 @@ extern "C" {
# error "this header requires Py_BUILD_CORE define"
#endif
-#include "pycore_pystate.h" /* _PyRuntime.gc */
+#include "pycore_pystate.h" /* PyInterpreterState.gc */
PyAPI_FUNC(int) _PyType_CheckConsistency(PyTypeObject *type);
PyAPI_FUNC(int) _PyDict_CheckConsistency(PyObject *mp, int check_content);
@@ -94,6 +94,15 @@ _PyObject_GET_WEAKREFS_LISTPTR(PyObject *op)
return (PyObject **)((char *)op + offset);
}
+// Fast inlined version of PyType_HasFeature()
+static inline int
+_PyType_HasFeature(PyTypeObject *type, unsigned long feature) {
+ return ((type->tp_flags & feature) != 0);
+}
+
+// Fast inlined version of PyType_IS_GC()
+#define _PyType_IS_GC(t) _PyType_HasFeature((t), Py_TPFLAGS_HAVE_GC)
+
#ifdef __cplusplus
}
#endif
diff --git a/Include/object.h b/Include/object.h
index 6b6c66a..564ba29 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -614,11 +614,7 @@ times.
static inline int
PyType_HasFeature(PyTypeObject *type, unsigned long feature) {
-#ifdef Py_LIMITED_API
return ((PyType_GetFlags(type) & feature) != 0);
-#else
- return ((type->tp_flags & feature) != 0);
-#endif
}
#define PyType_FastSubclass(type, flag) PyType_HasFeature(type, flag)