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27 lines
583 B
Objective-C
27 lines
583 B
Objective-C
#include <objc/runtime.h>
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#include <objc/blocks_runtime.h>
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#include <assert.h>
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@interface Foo @end
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@implementation Foo @end
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@interface Foo (Dynamic)
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+(int)count: (int)i;
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@end
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int main(void)
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{
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__block int b = 0;
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void* blk = ^(id self, int a) {
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b += a;
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return b; };
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blk = Block_copy(blk);
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IMP imp = imp_implementationWithBlock(blk);
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class_addMethod((objc_getMetaClass("Foo")), @selector(count:), imp, "i@:i");
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assert(2 == [Foo count: 2]);
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assert(4 == [Foo count: 2]);
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assert(6 == [Foo count: 2]);
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assert(imp_getBlock(imp) == (blk));
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imp_removeBlock(blk);
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return 0;
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}
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