176 lines
3.1 KiB
Text
176 lines
3.1 KiB
Text
// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %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*); // expected-note {{candidate}}
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float& f(B*); // expected-note {{candidate}}
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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 test0(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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// GCC succeeds here, which is clearly ridiculous.
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float& f2 = f(val); // expected-error {{ambiguous}}
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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);
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}
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void test1(A* a) {
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B* b = a; // expected-warning{{incompatible pointer types initializing 'B *' with an expression of type 'A *'}}
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B *c; c = a; // expected-warning{{incompatible pointer types assigning to 'B *' from 'A *'}}
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}
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void test2(A** ap) {
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B** bp = ap; // expected-warning{{incompatible pointer types initializing 'B **' with an expression of type 'A **'}}
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bp = ap; // expected-warning{{incompatible pointer types assigning to 'B **' from '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>);
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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 (*)(id)' from a function with result type 'void (*)(NSException *)'}}
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}
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namespace test5 {
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void foo(bool);
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void foo(void *);
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void test(id p) {
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foo(p);
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}
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}
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// rdar://problem/8592139
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namespace test6 {
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void foo(id); // expected-note{{candidate function}}
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void foo(A*) __attribute__((unavailable)); // expected-note {{explicitly made unavailable}}
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void test(B *b) {
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foo(b); // expected-error {{call to unavailable function 'foo'}}
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}
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}
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namespace rdar8714395 {
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int &f(const void*);
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float &f(const Foo*);
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int &f2(const void*);
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float &f2(Foo const* const *);
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int &f3(const void*);
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float &f3(Foo const**);
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void g(Foo *p) {
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float &fr = f(p);
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float &fr2 = f2(&p);
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int &ir = f3(&p);
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}
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}
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namespace rdar8734046 {
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void f1(id);
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void f2(id<P0>);
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void g(const A *a) {
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f1(a);
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f2(a);
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}
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}
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namespace PR9735 {
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int &f3(const A*);
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float &f3(const void*);
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void test_f(B* b, const B* bc) {
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int &ir1 = f3(b);
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int &ir2 = f3(bc);
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}
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}
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@interface D : B
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@end
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namespace rdar9327203 {
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int &f(void* const&, int);
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float &f(void* const&, long);
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void g(id x) {
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int &fr = (f)(x, 0);
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}
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}
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namespace class_id {
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// it's okay to overload Class with id.
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void f(Class) { }
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void f(id) { }
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}
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