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llvm-project/clang/test/Sema/attr-availability-square-brackets.c

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[clang] Enable C++11-style attributes in all language modes 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
2023-07-22 09:33:55 -07:00
// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fsyntax-only -verify %s
Add a C++11 and C2x spelling for the availability attribute in the clang vendor namespace. This attribute has custom parsing rules that previously prevented it from being supported with square bracket notation. Rework the clang attribute argument parsing to be more easily extended for other custom-parsed attributes. llvm-svn: 326036
2018-02-24 17:16:42 +00:00
Use functions with prototypes when appropriate; NFC A significant number of our tests in C accidentally use functions without prototypes. This patch converts the function signatures to have a prototype for the situations where the test is not specific to K&R C declarations. e.g., void func(); becomes void func(void); This is the first batch of tests being updated (there are a significant number of other tests left to be updated).
2022-02-03 16:39:21 -05:00
[[clang::availability(macosx,introduced=10.4,deprecated=10.2)]] void f0(void); // expected-warning{{feature cannot be deprecated in macOS version 10.2 before it was introduced in version 10.4; attribute ignored}}
[[clang::availability(ios,obsoleted=2.1,deprecated=3.0)]] void f1(void); // expected-warning{{feature cannot be obsoleted in iOS version 2.1 before it was deprecated in version 3.0; attribute ignored}}
[[clang::availability(ios,introduced=2.1,deprecated=2.1)]] void f2(void);
Add a C++11 and C2x spelling for the availability attribute in the clang vendor namespace. This attribute has custom parsing rules that previously prevented it from being supported with square bracket notation. Rework the clang attribute argument parsing to be more easily extended for other custom-parsed attributes. llvm-svn: 326036
2018-02-24 17:16:42 +00:00
Fix an accepts-invalid issue with [[]] attributes in the type position in C A user reported an issue to me via email that Clang was accepting some code that GCC was rejecting. After investigation, it turned out to be a general problem of us failing to properly reject attributes written in the type position in C when they don't apply to types. The root cause was a terminology issue -- we sometimes use "CXX11Attr" to mean [[]] in C++11 mode and sometimes [[]] in general -- and this came back to bite us because in this particular case, it really meant [[]] in C++ mode. I fixed the issue by introducing a new function AttributeCommonInfo::isStandardAttributeSyntax() to represent [[]] in either C or C++ mode. This fix pointed out that we've had the issue in some of our existing tests, which have all been corrected. This resolves https://bugs.llvm.org/show_bug.cgi?id=50954.
2021-07-01 12:39:17 -04:00
[[clang::availability(macosx,introduced=8.0,deprecated=9.0, message="use CTFontCopyFullName")]]
Add a C++11 and C2x spelling for the availability attribute in the clang vendor namespace. This attribute has custom parsing rules that previously prevented it from being supported with square bracket notation. Rework the clang attribute argument parsing to be more easily extended for other custom-parsed attributes. llvm-svn: 326036
2018-02-24 17:16:42 +00:00
extern void
Fix an accepts-invalid issue with [[]] attributes in the type position in C A user reported an issue to me via email that Clang was accepting some code that GCC was rejecting. After investigation, it turned out to be a general problem of us failing to properly reject attributes written in the type position in C when they don't apply to types. The root cause was a terminology issue -- we sometimes use "CXX11Attr" to mean [[]] in C++11 mode and sometimes [[]] in general -- and this came back to bite us because in this particular case, it really meant [[]] in C++ mode. I fixed the issue by introducing a new function AttributeCommonInfo::isStandardAttributeSyntax() to represent [[]] in either C or C++ mode. This fix pointed out that we've had the issue in some of our existing tests, which have all been corrected. This resolves https://bugs.llvm.org/show_bug.cgi?id=50954.
2021-07-01 12:39:17 -04:00
ATSFontGetName(const char *oName); // expected-note {{'ATSFontGetName' has been explicitly marked deprecated here}}
Add a C++11 and C2x spelling for the availability attribute in the clang vendor namespace. This attribute has custom parsing rules that previously prevented it from being supported with square bracket notation. Rework the clang attribute argument parsing to be more easily extended for other custom-parsed attributes. llvm-svn: 326036
2018-02-24 17:16:42 +00:00
Use functions with prototypes when appropriate; NFC A significant number of our tests in C accidentally use functions without prototypes. This patch converts the function signatures to have a prototype for the situations where the test is not specific to K&R C declarations. e.g., void func(); becomes void func(void); This is the first batch of tests being updated (there are a significant number of other tests left to be updated).
2022-02-03 16:39:21 -05:00
void test_10095131(void) {
Add a C++11 and C2x spelling for the availability attribute in the clang vendor namespace. This attribute has custom parsing rules that previously prevented it from being supported with square bracket notation. Rework the clang attribute argument parsing to be more easily extended for other custom-parsed attributes. llvm-svn: 326036
2018-02-24 17:16:42 +00:00
ATSFontGetName("Hello"); // expected-warning {{'ATSFontGetName' is deprecated: first deprecated in macOS 9.0 - use CTFontCopyFullName}}
}
enum
[[clang::availability(macos, unavailable)]]
{
NSDataWritingFileProtectionWriteOnly = 0x30000000,
NSDataWritingFileProtectionCompleteUntilUserAuthentication = 0x40000000,
};
extern int x [[clang::availability(macosx,introduced=10.5)]];
extern int x;
int i [[clang::availability(this, should = 1.0)]]; // expected-error {{'should' is not an availability stage; use 'introduced', 'deprecated', or 'obsoleted'}} \
// expected-warning {{unknown platform 'this' in availability macro}}
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