llvm-project/clang/test/Parser/cxx0x-attributes.cpp

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// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -verify -std=c++11 %s
// Declaration syntax checks
[[]] int before_attr;
int [[]] between_attr;
int after_attr [[]];
int * [[]] ptr_attr;
int array_attr [1] [[]];
alignas(8) int aligned_attr;
[[test::valid(for 42 [very] **** '+' symbols went on a trip; the end.)]]
int garbage_attr;
void fn_attr () [[]];
class [[]] class_attr {};
extern "C++" [[]] int extern_attr;
template <typename T> [[]] void template_attr ();
[[]] [[]] int [[]] [[]] multi_attr [[]] [[]];
int comma_attr [[,]]; // expected-error {{expected identifier}}
int scope_attr [[foo::]]; // expected-error {{expected identifier}}
unsigned [[]] int attr_in_decl_spec; // expected-error {{expected unqualified-id}}
int & [[]] ref_attr = after_attr; // expected-error {{an attribute list cannot appear here}}
class foo {
void after_const_attr () const [[]]; // expected-error {{expected body of lambda expression}}
};
extern "C++" [[]] { } // expected-error {{an attribute list cannot appear here}}
[[]] template <typename T> void before_template_attr (); // expected-error {{an attribute list cannot appear here}}
[[]] namespace ns { int i; } // expected-error {{an attribute list cannot appear here}} expected-note {{declared here}}
[[]] static_assert(true, ""); //expected-error {{an attribute list cannot appear here}}
[[]] asm(""); // expected-error {{an attribute list cannot appear here}}
[[]] using ns::i; // expected-error {{an attribute list cannot appear here}}
[[]] using namespace ns;
// Argument tests
alignas int aligned_no_params; // expected-error {{expected '('}}
alignas(i) int aligned_nonconst; // expected-error {{'aligned' attribute requires integer constant}} expected-note {{read of non-const variable 'i'}}
// Statement tests
void foo () {
[[]] ;
[[]] { }
[[]] if (0) { }
[[]] for (;;);
[[]] do {
[[]] continue;
} while (0);
[[]] while (0);
[[]] switch (i) {
[[]] case 0:
[[]] default:
[[]] break;
}
[[]] goto there;
[[]] there:
[[]] try {
} [[]] catch (...) { // expected-error {{an attribute list cannot appear here}}
}
[[]] return;
}