1 | // RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11 |
2 | |
3 | namespace simple { |
4 | int Foo(void *const p __attribute__((pass_object_size(0)))); |
5 | |
6 | int OvlFoo(void *const p __attribute__((pass_object_size(0)))); |
7 | int OvlFoo(void *const p, int); |
8 | |
9 | struct 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 | |
16 | struct 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 | |
22 | void 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 | |
36 | void 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 | |
54 | namespace templates { |
55 | template <typename T> |
56 | int Foo(void *const __attribute__((pass_object_size(0)))) { |
57 | return 0; |
58 | } |
59 | |
60 | template <typename T> struct Bar { |
61 | template <typename U> |
62 | int Foo(void *const __attribute__((pass_object_size(0)))) { |
63 | return 0; |
64 | } |
65 | }; |
66 | |
67 | void 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 | |
72 | void 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 | |
79 | namespace virt { |
80 | struct Foo { |
81 | virtual void DoIt(void *const p __attribute__((pass_object_size(0)))); |
82 | }; |
83 | |
84 | struct Bar : public Foo { |
85 | void DoIt(void *const p __attribute__((pass_object_size(0)))) override; // OK |
86 | }; |
87 | |
88 | struct 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 | |
93 | namespace why { |
94 | void TakeFn(void (*)(int, void *)); |
95 | void ObjSize(int, void *const __attribute__((pass_object_size(0)))); |
96 | |
97 | void 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 | |
113 | namespace constexpr_support { |
114 | constexpr int getObjSizeType() { return 0; } |
115 | void Foo(void *p __attribute__((pass_object_size(getObjSizeType())))); |
116 | } |
117 | |
118 | namespace lambdas { |
119 | void 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 | |
124 | namespace ovlbug { |
125 | // Directly calling an address-of function expression (e.g. in (&foo)(args...)) |
126 | // doesn't go through regular address-of-overload logic. This caused the above |
127 | // code to generate an ICE. |
128 | void DirectAddrOf(void *__attribute__((pass_object_size(0)))); |
129 | void DirectAddrOfOvl(void *__attribute__((pass_object_size(0)))); |
130 | void DirectAddrOfOvl(int *); |
131 | |
132 | void Test() { |
133 | (&DirectAddrOf)(nullptr); //expected-error{{cannot take address of function 'DirectAddrOf' because parameter 1 has pass_object_size attribute}} |
134 | (&DirectAddrOfOvl)((char*)nullptr); //expected-error{{no matching function}} expected-note@129{{candidate address cannot be taken because parameter 1 has pass_object_size attribute}} expected-note@130{{candidate function not viable: no known conversion from 'char *' to 'int *' for 1st argument}} |
135 | } |
136 | } |
137 | |