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Preliminary code for emulation of the objc2 runtime weak reference feature

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rfm 2024-12-23 18:32:23 +00:00
parent 950e2a5f07
commit c66bd6ec5c
11 changed files with 472 additions and 81 deletions
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16
Source/NSConcretePointerFunctions.h
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@ -29,14 +29,16 @@
#endif
#if defined(OBJC_CAP_ARC)
# include <objc/objc-arc.h>
# define WEAK_READ(x) objc_loadWeak((id*)x)
# define WEAK_WRITE(addr, x) objc_storeWeak((id*)addr, (id)x)
# define STRONG_WRITE(addr, x) objc_storeStrong((id*)addr, (id)x)
# define STRONG_ACQUIRE(x) objc_retain(x)
# include <objc/objc-arc.h>
# define WEAK_READ(x) objc_loadWeak((id*)x)
# define WEAK_WRITE(addr, x) objc_storeWeak((id*)addr, (id)x)
# define STRONG_WRITE(addr, x) objc_storeStrong((id*)addr, (id)x)
# define STRONG_ACQUIRE(x) objc_retain(x)
#else
# define WEAK_READ(x) (*x)
# define WEAK_WRITE(addr, x) (*(addr) = x)
extern id objc_loadWeak(id *object);
extern id objc_storeWeak(id *addr, id obj);
# define WEAK_READ(x) objc_loadWeak((id*)x)
# define WEAK_WRITE(addr, x) objc_storeWeak((id*)addr, (id)x)
# define STRONG_WRITE(addr, x) ASSIGN(*((id*)addr), ((id)x))
# define STRONG_ACQUIRE(x) RETAIN(((id)x))
#endif