Author: erichkeane Date: Thu Sep 28 13:08:03 2017 New Revision: 314456 URL: http://llvm.org/viewvc/llvm-project?rev=314456&view=rev Log: Add Documentation to attribute-nothrow. Additionally, limit to functions.
Attribute nothrow is only allowed on functions, so I added that. Additionally, it lacks any documentation, so I added some. Differential Revision: https://reviews.llvm.org/D38202 Modified: cfe/trunk/include/clang/Basic/Attr.td cfe/trunk/include/clang/Basic/AttrDocs.td cfe/trunk/test/Misc/pragma-attribute-supported-attributes-list.test Modified: cfe/trunk/include/clang/Basic/Attr.td URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/Attr.td?rev=314456&r1=314455&r2=314456&view=diff ============================================================================== --- cfe/trunk/include/clang/Basic/Attr.td (original) +++ cfe/trunk/include/clang/Basic/Attr.td Thu Sep 28 13:08:03 2017 @@ -1437,7 +1437,8 @@ def NotTailCalled : InheritableAttr { def NoThrow : InheritableAttr { let Spellings = [GCC<"nothrow">, Declspec<"nothrow">]; - let Documentation = [Undocumented]; + let Subjects = SubjectList<[Function]>; + let Documentation = [NoThrowDocs]; } def NvWeak : IgnoredAttr { Modified: cfe/trunk/include/clang/Basic/AttrDocs.td URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/AttrDocs.td?rev=314456&r1=314455&r2=314456&view=diff ============================================================================== --- cfe/trunk/include/clang/Basic/AttrDocs.td (original) +++ cfe/trunk/include/clang/Basic/AttrDocs.td Thu Sep 28 13:08:03 2017 @@ -2727,6 +2727,18 @@ Marking virtual functions as ``not_tail_ }]; } +def NoThrowDocs : Documentation { + let Category = DocCatFunction; + let Content = [{ +Clang supports the GNU style ``__attribute__((nothrow))`` and Microsoft style +``__declspec(nothrow)`` attribute as an equivilent of `noexcept` on function +declarations. This attribute informs the compiler that the annotated function +does not throw an exception. This prevents exception-unwinding. This attribute +is particularly useful on functions in the C Standard Library that are +guaranteed to not throw an exception. + }]; +} + def InternalLinkageDocs : Documentation { let Category = DocCatFunction; let Content = [{ Modified: cfe/trunk/test/Misc/pragma-attribute-supported-attributes-list.test URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Misc/pragma-attribute-supported-attributes-list.test?rev=314456&r1=314455&r2=314456&view=diff ============================================================================== --- cfe/trunk/test/Misc/pragma-attribute-supported-attributes-list.test (original) +++ cfe/trunk/test/Misc/pragma-attribute-supported-attributes-list.test Thu Sep 28 13:08:03 2017 @@ -40,6 +40,7 @@ // CHECK-NEXT: NoSanitize (SubjectMatchRule_function, SubjectMatchRule_objc_method, SubjectMatchRule_variable_is_global) // CHECK-NEXT: NoSanitizeSpecific (SubjectMatchRule_function, SubjectMatchRule_variable_is_global) // CHECK-NEXT: NoSplitStack (SubjectMatchRule_function) +// CHECK-NEXT: NoThrow (SubjectMatchRule_function) // CHECK-NEXT: NotTailCalled (SubjectMatchRule_function) // CHECK-NEXT: ObjCBoxable (SubjectMatchRule_record) // CHECK-NEXT: ObjCMethodFamily (SubjectMatchRule_objc_method) _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
