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This also ignores and deprecates the `-fdouble-square-bracket-attributes` command line flag, which seems to not be used anywhere. At least a code search exclusively found mentions of it in documentation: https://sourcegraph.com/search?q=context:global+-fdouble-square-bracket-attributes+-file:clang/*+-file:test/Sema/*+-file:test/Parser/*+-file:test/AST/*+-file:test/Preprocessor/*+-file:test/Misc/*+archived:yes&patternType=standard&sm=0&groupBy=repo RFC: https://discourse.llvm.org/t/rfc-enable-c-11-c2x-attributes-in-all-standard-modes-as-an-extension-and-remove-fdouble-square-bracket-attributes This enables `[[]]` attributes in all C and C++ language modes without warning by default. `-Wc++-extensions` does warn. GCC has enabled this extension in all C modes since GCC 10. Reviewed By: aaron.ballman, MaskRay Spies: #clang-vendors, beanz, JDevlieghere, Michael137, MaskRay, sstefan1, jplehr, cfe-commits, lldb-commits, dmgreen, jdoerfert, wenlei, wlei Differential Revision: https://reviews.llvm.org/D151683
34 lines
1.8 KiB
C
34 lines
1.8 KiB
C
// RUN: %clang_cc1 -fsyntax-only -fblocks -verify %s
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void threeClauses(void) __attribute__((external_source_symbol(language="Swift", defined_in="module", generated_declaration)));
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void twoClauses(void) __attribute__((external_source_symbol(language="Swift", defined_in="module")));
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void fourClauses(void) __attribute__((external_source_symbol(language="Swift", defined_in="module", generated_declaration, USR="test")));
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void fiveClauses(void) __attribute__((external_source_symbol(language="Swift", defined_in="module", generated_declaration, generated_declaration, USR="test"))); // expected-error {{duplicate 'generated_declaration' clause in an 'external_source_symbol' attribute}}
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void oneClause(void) __attribute__((external_source_symbol(generated_declaration)));
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void noArguments(void)
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__attribute__((external_source_symbol)); // expected-error {{'external_source_symbol' attribute takes at least 1 argument}}
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void namedDeclsOnly(void) {
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int (^block)(void) = ^ (void)
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__attribute__((external_source_symbol(language="Swift"))) { // expected-warning {{'external_source_symbol' attribute only applies to named declarations}}
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return 1;
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};
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}
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[[clang::external_source_symbol(language="Swift", defined_in="module", generated_declaration)]] void threeClauses2(void);
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[[clang::external_source_symbol(language="Swift", defined_in="module")]] void twoClauses2(void);
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[[clang::external_source_symbol(language="Swift", defined_in="module", USR="test", generated_declaration, generated_declaration)]] // expected-error {{duplicate 'generated_declaration' clause in an 'external_source_symbol' attribute}}
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void fiveClauses2(void);
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[[clang::external_source_symbol(generated_declaration)]] void oneClause2(void);
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[[clang::external_source_symbol]] // expected-error {{'external_source_symbol' attribute takes at least 1 argument}}
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void noArguments2(void);
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