f4c51d9d76
value of class type, look for a unique conversion operator converting to integral or unscoped enumeration type and use that. Implements [expr.const]p5. Sema::VerifyIntegerConstantExpression now performs the conversion and returns the converted result. Some important callers of Expr::isIntegralConstantExpr have been switched over to using it (including all of those required for C++11 conformance); this switch brings a side-benefit of improved diagnostics and, in several cases, simpler code. However, some language extensions and attributes have not been moved across and will not perform implicit conversions on constant expressions of literal class type where an ICE is required. In passing, fix static_assert to perform a contextual conversion to bool on its argument. llvm-svn: 149776
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
// 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;
|
|
}
|