forked from OSchip/llvm-project
95 lines
1.8 KiB
Plaintext
95 lines
1.8 KiB
Plaintext
// RUN: clang -fsyntax-only -verify %s
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@interface Foo
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@end
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@implementation Foo
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void func(id);
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+ zone {
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func(self);
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return self;
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}
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@end
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@protocol P0
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@end
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@protocol P1
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@end
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@interface A <P0>
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@end
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@interface B : A
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@end
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@interface C <P1>
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@end
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int& f(A*);
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float& f(B*);
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void g(A*);
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int& h(A*);
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float& h(id);
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void test(A* a, B* b, id val) {
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int& i1 = f(a);
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float& f1 = f(b);
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float& f2 = f(val);
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g(a);
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g(b);
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g(val);
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int& i2 = h(a);
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float& f3 = h(val);
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// int& i3 = h(b); FIXME: we match GCC here, but shouldn't this work?
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}
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void downcast_test(A* a, A** ap) {
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B* b = a; // expected-warning{{incompatible pointer types initializing 'B *', expected 'A *'}}
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b = a; // expected-warning{{incompatible pointer types assigning 'B *', expected 'A *'}}
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B** bp = ap; // expected-warning{{incompatible pointer types initializing 'B **', expected 'A **'}}
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bp = ap; // expected-warning{{incompatible pointer types assigning 'B **', expected 'A **'}}
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}
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int& cv(A*);
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float& cv(const A*);
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int& cv2(void*);
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float& cv2(const void*);
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void cv_test(A* a, B* b, const A* ac, const B* bc) {
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int &i1 = cv(a);
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int &i2 = cv(b);
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float &f1 = cv(ac);
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float &f2 = cv(bc);
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int& i3 = cv2(a);
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float& f3 = cv2(ac);
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}
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int& qualid(id<P0>);
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float& qualid(id<P1>); // FIXME: GCC complains that this isn't an overload. Is it?
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void qualid_test(A *a, B *b, C *c) {
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int& i1 = qualid(a);
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int& i2 = qualid(b);
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float& f1 = qualid(c);
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id<P0> p1 = 0;
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p1 = 0;
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}
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@class NSException;
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typedef struct {
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void (*throw_exc)(id);
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}
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objc_exception_functions_t;
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void (*_NSExceptionRaiser(void))(NSException *) {
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objc_exception_functions_t exc_funcs;
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return exc_funcs.throw_exc; // expected-warning{{incompatible pointer types returning 'void (*)(NSException *)', expected 'void (*)(id)'}}
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}
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