1// RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11 2 3namespace simple { 4int Foo(void *const p __attribute__((pass_object_size(0)))); 5 6int OvlFoo(void *const p __attribute__((pass_object_size(0)))); 7int OvlFoo(void *const p, int); 8 9struct Statics { 10 static int Foo(void *const p __attribute__((pass_object_size(0)))); 11 static int OvlFoo(void *const p __attribute__((pass_object_size(0)))); 12 static int OvlFoo(void *const p __attribute__((pass_object_size(1)))); // expected-error{{conflicting pass_object_size attributes on parameters}} expected-note@-1{{previous declaration is here}} 13 static int OvlFoo(double *p); 14}; 15 16struct Members { 17 int Foo(void *const p __attribute__((pass_object_size(0)))); 18 int OvlFoo(void *const p __attribute__((pass_object_size(0)))); 19 int OvlFoo(void *const p, int); 20}; 21 22void Decls() { 23 int (*A)(void *) = &Foo; //expected-error{{cannot take address of function 'Foo' because parameter 1 has pass_object_size attribute}} 24 int (*B)(void *) = Foo; //expected-error{{cannot take address of function 'Foo' because parameter 1 has pass_object_size attribute}} 25 26 int (*C)(void *) = &OvlFoo; //expected-error{{address of overloaded function 'OvlFoo' does not match required type 'int (void *)'}} expected-note@6{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} expected-note@7{{candidate function has different number of parameters (expected 1 but has 2)}} 27 int (*D)(void *) = OvlFoo; //expected-error{{address of overloaded function 'OvlFoo' does not match required type 'int (void *)'}} expected-note@6{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} expected-note@7{{candidate function has different number of parameters (expected 1 but has 2)}} 28 29 int (*E)(void *) = &Statics::Foo; //expected-error{{cannot take address of function 'Foo' because parameter 1 has pass_object_size attribute}} 30 int (*F)(void *) = &Statics::OvlFoo; //expected-error{{address of overloaded function 'OvlFoo' does not match required type 'int (void *)'}} expected-note@11{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} expected-note@13{{candidate function has type mismatch at 1st parameter (expected 'void *' but has 'double *')}} 31 32 int (*G)(void *) = &Members::Foo; //expected-error{{cannot take address of function 'Foo' because parameter 1 has pass_object_size attribute}} 33 int (*H)(void *) = &Members::OvlFoo; //expected-error{{address of overloaded function 'OvlFoo' does not match required type 'int (void *)'}} expected-note@18{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} expected-note@19{{candidate function has different number of parameters (expected 1 but has 2)}} 34} 35 36void Assigns() { 37 int (*A)(void *); 38 A = &Foo; //expected-error{{cannot take address of function 'Foo' because parameter 1 has pass_object_size attribute}} 39 A = Foo; //expected-error{{cannot take address of function 'Foo' because parameter 1 has pass_object_size attribute}} 40 41 A = &OvlFoo; //expected-error{{assigning to 'int (*)(void *)' from incompatible type '<overloaded function type>'}} expected-note@6{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} expected-note@7{{candidate function has different number of parameters (expected 1 but has 2)}} 42 A = OvlFoo; //expected-error{{assigning to 'int (*)(void *)' from incompatible type '<overloaded function type>'}} expected-note@6{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} expected-note@7{{candidate function has different number of parameters (expected 1 but has 2)}} 43 44 A = &Statics::Foo; //expected-error{{cannot take address of function 'Foo' because parameter 1 has pass_object_size attribute}} 45 A = &Statics::OvlFoo; //expected-error{{assigning to 'int (*)(void *)' from incompatible type '<overloaded function type>'}} expected-note@11{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} expected-note@13{{candidate function has type mismatch at 1st parameter (expected 'void *' but has 'double *')}} 46 47 int (Members::*M)(void *); 48 M = &Members::Foo; //expected-error{{cannot take address of function 'Foo' because parameter 1 has pass_object_size attribute}} 49 M = &Members::OvlFoo; //expected-error-re{{assigning to '{{.*}}' from incompatible type '<overloaded function type>'}} expected-note@18{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} expected-note@19{{candidate function has different number of parameters (expected 1 but has 2)}} 50} 51 52} // namespace simple 53 54namespace templates { 55template <typename T> 56int Foo(void *const __attribute__((pass_object_size(0)))) { 57 return 0; 58} 59 60template <typename T> struct Bar { 61 template <typename U> 62 int Foo(void *const __attribute__((pass_object_size(0)))) { 63 return 0; 64 } 65}; 66 67void Decls() { 68 int (*A)(void *) = &Foo<void*>; //expected-error{{address of overloaded function 'Foo' does not match required type 'int (void *)'}} expected-note@56{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} 69 int (Bar<int>::*B)(void *) = &Bar<int>::Foo<double>; //expected-error{{address of overloaded function 'Foo' does not match required type}} expected-note@62{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} 70} 71 72void Assigns() { 73 int (*A)(void *); 74 A = &Foo<void*>; // expected-error{{assigning to 'int (*)(void *)' from incompatible type '<overloaded function type>'}} expected-note@56{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} 75 int (Bar<int>::*B)(void *) = &Bar<int>::Foo<double>; //expected-error{{address of overloaded function 'Foo' does not match required type}} expected-note@62{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} 76} 77} // namespace templates 78 79namespace virt { 80struct Foo { 81 virtual void DoIt(void *const p __attribute__((pass_object_size(0)))); 82}; 83 84struct Bar : public Foo { 85 void DoIt(void *const p __attribute__((pass_object_size(0)))) override; // OK 86}; 87 88struct Baz : public Foo { 89 void DoIt(void *const p) override; //expected-error{{non-virtual member function marked 'override' hides virtual member function}} expected-note@81{{hidden overloaded virtual function 'virt::Foo::DoIt' declared here}} 90}; 91} 92 93namespace why { 94void TakeFn(void (*)(int, void *)); 95void ObjSize(int, void *const __attribute__((pass_object_size(0)))); 96 97void Check() { 98 TakeFn(ObjSize); //expected-error{{cannot take address of function 'ObjSize' because parameter 2 has pass_object_size attribute}} 99 TakeFn(&ObjSize); //expected-error{{cannot take address of function 'ObjSize' because parameter 2 has pass_object_size attribute}} 100 TakeFn(*ObjSize); //expected-error{{cannot take address of function 'ObjSize' because parameter 2 has pass_object_size attribute}} 101 TakeFn(*****ObjSize); //expected-error{{cannot take address of function 'ObjSize' because parameter 2 has pass_object_size attribute}} 102 TakeFn(*****&ObjSize); //expected-error{{cannot take address of function 'ObjSize' because parameter 2 has pass_object_size attribute}} 103 104 void (*P)(int, void *) = ****ObjSize; //expected-error{{cannot take address of function 'ObjSize' because parameter 2 has pass_object_size attribute}} 105 P = ****ObjSize; //expected-error{{cannot take address of function 'ObjSize' because parameter 2 has pass_object_size attribute}} 106 107 TakeFn((ObjSize)); //expected-error{{cannot take address of function 'ObjSize' because parameter 2 has pass_object_size attribute}} 108 TakeFn((void*)ObjSize); //expected-error{{cannot take address of function 'ObjSize' because parameter 2 has pass_object_size attribute}} 109 TakeFn((decltype(P))((void*)ObjSize)); //expected-error{{cannot take address of function 'ObjSize' because parameter 2 has pass_object_size attribute}} 110} 111} 112 113namespace constexpr_support { 114constexpr int getObjSizeType() { return 0; } 115void Foo(void *p __attribute__((pass_object_size(getObjSizeType())))); 116} 117 118namespace lambdas { 119void Bar() { 120 (void)+[](void *const p __attribute__((pass_object_size(0)))) {}; //expected-error-re{{invalid argument type '(lambda at {{.*}})' to unary expression}} 121} 122} 123