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GH-95245: Move weakreflist into the pre-header. (GH-95996)

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Mark Shannon 2022-08-16 13:57:18 +01:00 • committed by GitHub
parent 829aab8592
commit 5a8c15819c
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6 changed files with 105 additions and 20 deletions
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10
Include/object.h
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@ -360,12 +360,18 @@ given type object has a specified feature.
/* Track types initialized using _PyStaticType_InitBuiltin(). */
#define _Py_TPFLAGS_STATIC_BUILTIN (1 << 1)
/* Placement of weakref pointers are managed by the VM, not by the type.
* The VM will automatically set tp_weaklistoffset.
*/
#define Py_TPFLAGS_MANAGED_WEAKREF (1 << 3)
/* Placement of dict (and values) pointers are managed by the VM, not by the type.
* The VM will automatically set tp_dictoffset. Should not be used for variable sized
* classes, such as classes that extend tuple.
* The VM will automatically set tp_dictoffset.
*/
#define Py_TPFLAGS_MANAGED_DICT (1 << 4)
#define Py_TPFLAGS_PREHEADER (Py_TPFLAGS_MANAGED_WEAKREF | Py_TPFLAGS_MANAGED_DICT)
/* Set if instances of the type object are treated as sequences for pattern matching */
#define Py_TPFLAGS_SEQUENCE (1 << 5)
/* Set if instances of the type object are treated as mappings for pattern matching */