| // RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s |
| @interface Foo |
| @end |
| |
| @implementation Foo |
| |
| void func(id); |
| |
| + zone { |
| func(self); |
| return self; |
| } |
| @end |
| |
| @protocol P0 |
| @end |
| |
| @protocol P1 |
| @end |
| |
| @interface A <P0> |
| @end |
| |
| @interface B : A |
| @end |
| |
| @interface C <P1> |
| @end |
| |
| int& f(A*); // expected-note {{candidate}} |
| float& f(B*); // expected-note {{candidate}} |
| void g(A*); |
| |
| int& h(A*); |
| float& h(id); |
| |
| void test0(A* a, B* b, id val) { |
| int& i1 = f(a); |
| float& f1 = f(b); |
| |
| // GCC succeeds here, which is clearly ridiculous. |
| float& f2 = f(val); // expected-error {{ambiguous}} |
| |
| g(a); |
| g(b); |
| g(val); |
| int& i2 = h(a); |
| float& f3 = h(val); |
| |
| int& i3 = h(b); |
| } |
| |
| void test1(A* a) { |
| B* b = a; // expected-warning{{incompatible pointer types initializing 'B *' with an expression of type 'A *'}} |
| B *c; c = a; // expected-warning{{incompatible pointer types assigning to 'B *' from 'A *'}} |
| } |
| |
| void test2(A** ap) { |
| B** bp = ap; // expected-warning{{incompatible pointer types initializing 'B **' with an expression of type 'A **'}} |
| bp = ap; // expected-warning{{incompatible pointer types assigning to 'B **' from 'A **'}} |
| } |
| |
| int& cv(A*); |
| float& cv(const A*); |
| |
| int& cv2(void*); |
| float& cv2(const void*); |
| |
| void cv_test(A* a, B* b, const A* ac, const B* bc) { |
| int &i1 = cv(a); |
| int &i2 = cv(b); |
| float &f1 = cv(ac); |
| float &f2 = cv(bc); |
| int& i3 = cv2(a); |
| float& f3 = cv2(ac); |
| } |
| |
| int& qualid(id<P0>); |
| float& qualid(id<P1>); |
| |
| void qualid_test(A *a, B *b, C *c) { |
| int& i1 = qualid(a); |
| int& i2 = qualid(b); |
| |
| float& f1 = qualid(c); |
| |
| id<P0> p1 = 0; |
| p1 = 0; |
| } |
| |
| |
| @class NSException; |
| typedef struct { |
| void (*throw_exc)(id); |
| } |
| objc_exception_functions_t; |
| |
| void (*_NSExceptionRaiser(void))(NSException *) { |
| objc_exception_functions_t exc_funcs; |
| return exc_funcs.throw_exc; // expected-warning{{incompatible pointer types returning 'void (*)(id)' from a function with result type 'void (*)(NSException *)'}} |
| } |
| |
| namespace test5 { |
| void foo(bool); |
| void foo(void *); |
| |
| void test(id p) { |
| foo(p); |
| } |
| } |
| |
| // rdar://problem/8592139 |
| namespace test6 { |
| void foo(id); // expected-note{{candidate function}} |
| void foo(A*) __attribute__((unavailable)); // expected-note {{explicitly made unavailable}} |
| |
| void test(B *b) { |
| foo(b); // expected-error {{call to unavailable function 'foo'}} |
| } |
| } |
| |
| namespace rdar8714395 { |
| int &f(const void*); |
| float &f(const Foo*); |
| |
| int &f2(const void*); |
| float &f2(Foo const* const *); |
| |
| int &f3(const void*); |
| float &f3(Foo const**); |
| |
| void g(Foo *p) { |
| float &fr = f(p); |
| float &fr2 = f2(&p); |
| int &ir = f3(&p); |
| } |
| |
| |
| } |
| |
| namespace rdar8734046 { |
| void f1(id); |
| void f2(id<P0>); |
| void g(const A *a) { |
| f1(a); |
| f2(a); |
| } |
| } |
| |
| namespace PR9735 { |
| int &f3(const A*); |
| float &f3(const void*); |
| |
| void test_f(B* b, const B* bc) { |
| int &ir1 = f3(b); |
| int &ir2 = f3(bc); |
| } |
| } |
| |
| @interface D : B |
| @end |
| |
| namespace rdar9327203 { |
| int &f(void* const&, int); |
| float &f(void* const&, long); |
| |
| void g(id x) { |
| int &fr = (f)(x, 0); |
| } |
| } |
| |
| namespace class_id { |
| // it's okay to overload Class with id. |
| void f(Class) { } |
| void f(id) { } |
| } |