33 lines
2.5 KiB
C++
33 lines
2.5 KiB
C++
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// RUN: %clang_cc1 -verify -std=c++11 %s
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[[carries_dependency, carries_dependency]] int m1(); // expected-error {{attribute 'carries_dependency' cannot appear multiple times in an attribute specifier}}
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[[carries_dependency]] [[carries_dependency]] int m2(); // ok
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[[carries_dependency()]] int m3(); // expected-error {{attribute 'carries_dependency' cannot have an argument list}}
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[[carries_dependency]] void f1(); // FIXME: warn here
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[[carries_dependency]] int f2(); // ok
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int f3(int param [[carries_dependency]]); // ok
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[[carries_dependency]] int (*f4)(); // expected-error {{'carries_dependency' attribute only applies to parameters, Objective-C methods, and functions}}
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int (*f5 [[carries_dependency]])(); // expected-error {{'carries_dependency' attribute only applies to}}
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int (*f6)() [[carries_dependency]]; // expected-error {{'carries_dependency' attribute cannot be applied to types}}
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int (*f7)(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
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int (((f8)))(int n [[carries_dependency]]); // ok
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int (*f9(int n))(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
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int typedef f10(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
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using T = int(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
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struct S {
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[[carries_dependency]] int f(int n [[carries_dependency]]); // ok
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int (*p)(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
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};
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void f() {
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[[carries_dependency]] int f(int n [[carries_dependency]]); // ok
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[[carries_dependency]] // expected-error {{'carries_dependency' attribute only applies to}}
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int (*p)(int n [[carries_dependency]]); // expected-error {{'[[carries_dependency]]' attribute only allowed on parameter in a function declaration}}
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}
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auto l1 = [](int n [[carries_dependency]]) {};
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// There's no way to write a lambda such that the return value carries
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// a dependency, because an attribute applied to the lambda appertains to
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// the *type* of the operator() function, not to the function itself.
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auto l2 = []() [[carries_dependency]] {}; // expected-error {{'carries_dependency' attribute cannot be applied to types}}
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