Hi,
a hack used in dynamic class registration in libobjc2/runtime.c causes
serious trouble for apps using this API.
This is the cause of trouble:
// Initialize the metaclass
// Set the meta-metaclass pointer to the name. The runtime will fix this
// in objc_resolve_class().
metaClass->isa = (Class)superclass->isa->isa->name;
See the attached example app, which crashes.
I could use objc_resolve_class() in between class registrations, but
that results in +load being called, which should not be happening at
that point.
--
Luboš Doležel
#import <Foundation/NSObject.h>
#include <objc/runtime.h>
int main()
{
Class a, b, c;
a = objc_allocateClassPair([NSObject class], "A", 0);
objc_registerClassPair(a);
b = objc_allocateClassPair(a, "B", 0);
objc_registerClassPair(b);
c = objc_allocateClassPair(b, "C", 0);
objc_registerClassPair(c);
return 0;
}
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