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53 lines
1.3 KiB
Text
53 lines
1.3 KiB
Text
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#import <ObjectTesting.h>
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#import <Foundation/NSObject.h>
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#if !__has_feature(objc_nonfragile_abi)
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int main(void)
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{
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START_SET("Unified exception model")
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SKIP("Unified exception model not supported")
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END_SET("Unified exception model")
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return 0;
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}
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#else
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/**
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* Tests whether void* catches Objective-C objects thrown as exceptions.
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* According to John McCall at Apple, the correct behaviour is not to catch
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* them in void* (which makes sense - void* is effectively a restricted
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* catchall, and we don't want to be catching foreign exceptions there because
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* we don't know what to do with them). In fact, the current behaviour on OS X
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* (with g++, not tested with clang++) is not simply to not catch them, it is
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* also to crash with a segfault. Current behaviour with clang + libobjc2 is
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* to do the Right Thing™.
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*/
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int main(void)
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{
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NSString *foo = @"foo";
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id caught = nil;
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int final = 0;
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int wrongCatch = 0;
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try
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{
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@throw foo;
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}
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catch (void *foo)
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{
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wrongCatch = 1;
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}
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catch (NSString *f)
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{
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caught = f;
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}
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catch(...)
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{
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final = 1;
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}
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pass(0==final, "catchall not used to catch object");
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pass(0==wrongCatch, "Incorrect object catch not used to catch object");
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pass(caught == foo, "Unified exception model works correctly");
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return 0;
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}
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#endif
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