1// RUN: %clang_cc1 -verify -std=c++11 %s
2
3[[carries_dependency, carries_dependency]] int m1(); // expected-error {{attribute 'carries_dependency' cannot appear multiple times in an attribute specifier}}
4[[carries_dependency]] [[carries_dependency]] int m2(); // ok
5[[carries_dependency()]] int m3(); // expected-error {{attribute 'carries_dependency' cannot have an argument list}}
6
7[[carries_dependency]] void f1(); // FIXME: warn here
8[[carries_dependency]] int f2(); // ok
9int f3(int param [[carries_dependency]]); // ok
10[[carries_dependency]] int (*f4)(); // expected-error {{'carries_dependency' attribute only applies to functions, methods, and parameters}}
11int (*f5 [[carries_dependency]])(); // expected-error {{'carries_dependency' attribute only applies to functions, methods, and parameters}}
12int (*f6)() [[carries_dependency]]; // expected-error {{'carries_dependency' attribute cannot be applied to types}}
13int (*f7)(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
14int (((f8)))(int n [[carries_dependency]]); // ok
15int (*f9(int n))(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
16int typedef f10(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
17using T = int(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
18struct S {
19  [[carries_dependency]] int f(int n [[carries_dependency]]); // ok
20  int (*p)(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
21};
22void f() {
23  [[carries_dependency]] int f(int n [[carries_dependency]]); // ok
24  [[carries_dependency]] // expected-error {{'carries_dependency' attribute only applies to functions, methods, and parameters}}
25      int (*p)(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
26}
27
28auto l1 = [](int n [[carries_dependency]]) {};
29// There's no way to write a lambda such that the return value carries
30// a dependency, because an attribute applied to the lambda appertains to
31// the *type* of the operator() function, not to the function itself.
32auto l2 = []() [[carries_dependency]] {}; // expected-error {{'carries_dependency' attribute cannot be applied to types}}
33