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associated objects initial implementation

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rfm 2025-03-08 17:26:32 +00:00
parent 83e67957bc
commit a46f86837f
6 changed files with 303 additions and 15 deletions
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24
Source/NSObject.m
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@ -434,7 +434,8 @@ static inline pthread_mutex_t *GSAllocationLockForObject(id p)
#ifndef OBJC_CAP_ARC
typedef struct {
BOOL hadWeakReference: 1; // set if the instance ever had a weak reference
BOOL hadWeakReference: 1; // if the instance ever had a weak reference
BOOL hadAssociations: 1; // if the instance ever had associated objects
} gsinstinfo_t;
#endif
@ -475,7 +476,18 @@ typedef struct obj_layout *obj;
#ifndef OBJC_CAP_ARC
BOOL
GSPrivateMarkedWeak(id anObject, BOOL mark)
GSPrivateMarkedAssociations(id anObject, BOOL mark)
{
BOOL wasMarked = ((obj)anObject)[-1].extra.hadAssociations;
if (mark)
{
((obj)anObject)[-1].extra.hadAssociations = YES;
}
return wasMarked;
}
BOOL
GSPrivateMarkedWeak(id anObject, BOOL mark)
{
BOOL wasMarked = ((obj)anObject)[-1].extra.hadWeakReference;
@ -853,6 +865,14 @@ NSDeallocateObject(id anObject)
(*finalize_imp)(anObject, finalize_sel);
AREM(aClass, (id)anObject);
#ifndef OBJC_CAP_ARC
if (GSPrivateMarkedAssociations(anObject, NO))
{
objc_removeAssociatedObjects(anObject);
}
#endif
if (NSZombieEnabled)
{
/* Replace the isa pointer etc to turn the object into a zombie.