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llvm-project/clang/test/Sema/attr-external-source-symbol.c

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Add a C2x spelling for the external_source_symbol and internal_linkage attributes in the clang vendor namespace. Both of these attributes have existing meaning in C code, so there was no reason to exclude them from using the new spelling. llvm-svn: 326053
2018-02-25 22:43:45 +08:00
// RUN: %clang_cc1 -fsyntax-only -fblocks -verify -fdouble-square-bracket-attributes %s
Introduce an 'external_source_symbol' attribute that describes the origin and the nature of a declaration This commit adds an external_source_symbol attribute to Clang. This attribute specifies that a declaration originates from an external source and describes the nature of that source. This attribute will be used to improve IDE features like 'jump-to-definition' for mixed-language projects or project that use auto-generated code. rdar://30423368 Differential Revision: https://reviews.llvm.org/D29819 llvm-svn: 296649
2017-03-02 02:06:25 +08:00
void threeClauses() __attribute__((external_source_symbol(language="Swift", defined_in="module", generated_declaration)));
void twoClauses() __attribute__((external_source_symbol(language="Swift", defined_in="module")));
void fourClauses() __attribute__((external_source_symbol(language="Swift", defined_in="module", generated_declaration, generated_declaration))); // expected-error {{duplicate 'generated_declaration' clause in an 'external_source_symbol' attribute}}
void oneClause() __attribute__((external_source_symbol(generated_declaration)));
void noArguments()
__attribute__((external_source_symbol)); // expected-error {{'external_source_symbol' attribute takes at least 1 argument}}
void namedDeclsOnly() {
int (^block)(void) = ^ (void)
__attribute__((external_source_symbol(language="Swift"))) { // expected-warning {{'external_source_symbol' attribute only applies to named declarations}}
return 1;
};
}
Add a C2x spelling for the external_source_symbol and internal_linkage attributes in the clang vendor namespace. Both of these attributes have existing meaning in C code, so there was no reason to exclude them from using the new spelling. llvm-svn: 326053
2018-02-25 22:43:45 +08:00
void threeClauses2() [[clang::external_source_symbol(language="Swift", defined_in="module", generated_declaration)]];
void twoClauses2() [[clang::external_source_symbol(language="Swift", defined_in="module")]];
void fourClauses2()
[[clang::external_source_symbol(language="Swift", defined_in="module", generated_declaration, generated_declaration)]]; // expected-error {{duplicate 'generated_declaration' clause in an 'external_source_symbol' attribute}}
void oneClause2() [[clang::external_source_symbol(generated_declaration)]];
void noArguments2()
[[clang::external_source_symbol]]; // expected-error {{'external_source_symbol' attribute takes at least 1 argument}}