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Add several more attributes to be parsed in C with [[]] when -fdouble-square-bracket-attributes is specified. 

Also flags a few attributes that should not be available with the C spelling as they only matter in C++.

llvm-svn: 325520
This commit is contained in:
Aaron Ballman 2018-02-19 17:32:07 +00:00
parent 37a35d3395
commit 4c4a9835a2
2 changed files with 72 additions and 39 deletions
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85
clang/include/clang/Basic/Attr.td
View File

@ -534,7 +534,7 @@ def AbiTag : Attr {
}
def AddressSpace : TypeAttr {
let Spellings = [Clang<"address_space">];
let Spellings = [Clang<"address_space", 1>];
let Args = [IntArgument<"AddressSpace">];
let Documentation = [Undocumented];
}
@ -598,18 +598,18 @@ def Artificial : InheritableAttr {
}
def XRayInstrument : InheritableAttr {
let Spellings = [Clang<"xray_always_instrument">,
Clang<"xray_never_instrument">];
let Spellings = [Clang<"xray_always_instrument", 1>,
Clang<"xray_never_instrument", 1>];
let Subjects = SubjectList<[Function, ObjCMethod]>;
let Accessors = [Accessor<"alwaysXRayInstrument",
[Clang<"xray_always_instrument">]>,
[Clang<"xray_always_instrument", 1>]>,
Accessor<"neverXRayInstrument",
[Clang<"xray_never_instrument">]>];
[Clang<"xray_never_instrument", 1>]>];
let Documentation = [XRayDocs];
}
def XRayLogArgs : InheritableAttr {
let Spellings = [Clang<"xray_log_args">];
let Spellings = [Clang<"xray_log_args", 1>];
let Subjects = SubjectList<[Function, ObjCMethod]>;
let Args = [UnsignedArgument<"ArgumentCount">];
let Documentation = [XRayDocs];
@ -735,7 +735,7 @@ def ExternalSourceSymbol : InheritableAttr {
}
def Blocks : InheritableAttr {
let Spellings = [Clang<"blocks">];
let Spellings = [Clang<"blocks", 1>];
let Args = [EnumArgument<"Type", "BlockType", ["byref"], ["ByRef"]>];
let Documentation = [Undocumented];
}
@ -1072,19 +1072,19 @@ def Final : InheritableAttr {
}
def MinSize : InheritableAttr {
let Spellings = [Clang<"minsize">];
let Spellings = [Clang<"minsize", 1>];
let Subjects = SubjectList<[Function, ObjCMethod], ErrorDiag>;
let Documentation = [Undocumented];
}
def FlagEnum : InheritableAttr {
let Spellings = [Clang<"flag_enum">];
let Spellings = [Clang<"flag_enum", 1>];
let Subjects = SubjectList<[Enum]>;
let Documentation = [FlagEnumDocs];
}
def EnumExtensibility : InheritableAttr {
let Spellings = [Clang<"enum_extensibility">];
let Spellings = [Clang<"enum_extensibility", 1>];
let Subjects = SubjectList<[Enum]>;
let Args = [EnumArgument<"Extensibility", "Kind",
["closed", "open"], ["Closed", "Open"]>];
@ -1169,6 +1169,8 @@ def LayoutVersion : InheritableAttr, TargetSpecificAttr<TargetMicrosoftCXXABI> {
}
def TrivialABI : InheritableAttr {
// This attribute does not have a C [[]] spelling because it requires the
// CPlusPlus language option.
let Spellings = [Clang<"trivial_abi">];
let Subjects = SubjectList<[CXXRecord]>;
let Documentation = [TrivialABIDocs];
@ -1259,13 +1261,13 @@ def Naked : InheritableAttr {
}
def NeonPolyVectorType : TypeAttr {
let Spellings = [Clang<"neon_polyvector_type">];
let Spellings = [Clang<"neon_polyvector_type", 1>];
let Args = [IntArgument<"NumElements">];
let Documentation = [Undocumented];
}
def NeonVectorType : TypeAttr {
let Spellings = [Clang<"neon_vector_type">];
let Spellings = [Clang<"neon_vector_type", 1>];
let Args = [IntArgument<"NumElements">];
let Documentation = [Undocumented];
}
@ -1277,7 +1279,7 @@ def ReturnsTwice : InheritableAttr {
}
def DisableTailCalls : InheritableAttr {
let Spellings = [Clang<"disable_tail_calls">];
let Spellings = [Clang<"disable_tail_calls", 1>];
let Subjects = SubjectList<[Function, ObjCMethod]>;
let Documentation = [DisableTailCallsDocs];
}
@ -1301,13 +1303,13 @@ def NoDebug : InheritableAttr {
}
def NoDuplicate : InheritableAttr {
let Spellings = [Clang<"noduplicate">];
let Spellings = [Clang<"noduplicate", 1>];
let Subjects = SubjectList<[Function]>;
let Documentation = [NoDuplicateDocs];
}
def Convergent : InheritableAttr {
let Spellings = [Clang<"convergent">];
let Spellings = [Clang<"convergent", 1>];
let Subjects = SubjectList<[Function]>;
let Documentation = [ConvergentDocs];
}
@ -1409,7 +1411,7 @@ def ReturnsNonNull : InheritableAttr {
// pass_object_size(N) indicates that the parameter should have
// __builtin_object_size with Type=N evaluated on the parameter at the callsite.
def PassObjectSize : InheritableParamAttr {
let Spellings = [Clang<"pass_object_size">];
let Spellings = [Clang<"pass_object_size", 1>];
let Args = [IntArgument<"Type">];
let Subjects = SubjectList<[ParmVar]>;
let Documentation = [PassObjectSizeDocs];
@ -1469,7 +1471,7 @@ def NoInstrumentFunction : InheritableAttr {
}
def NotTailCalled : InheritableAttr {
let Spellings = [Clang<"not_tail_called">];
let Spellings = [Clang<"not_tail_called", 1>];
let Subjects = SubjectList<[Function]>;
let Documentation = [NotTailCalledDocs];
}
@ -1632,13 +1634,13 @@ def ObjCBoxable : Attr {
}
def OptimizeNone : InheritableAttr {
let Spellings = [Clang<"optnone">];
let Spellings = [Clang<"optnone", 1>];
let Subjects = SubjectList<[Function, ObjCMethod]>;
let Documentation = [OptnoneDocs];
}
def Overloadable : Attr {
let Spellings = [Clang<"overloadable">];
let Spellings = [Clang<"overloadable", 1>];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [OverloadableDocs];
}
@ -1650,11 +1652,11 @@ def Override : InheritableAttr {
}
def Ownership : InheritableAttr {
let Spellings = [Clang<"ownership_holds">, Clang<"ownership_returns">,
Clang<"ownership_takes">];
let Accessors = [Accessor<"isHolds", [Clang<"ownership_holds">]>,
Accessor<"isReturns", [Clang<"ownership_returns">]>,
Accessor<"isTakes", [Clang<"ownership_takes">]>];
let Spellings = [Clang<"ownership_holds", 1>, Clang<"ownership_returns", 1>,
Clang<"ownership_takes", 1>];
let Accessors = [Accessor<"isHolds", [Clang<"ownership_holds", 1>]>,
Accessor<"isReturns", [Clang<"ownership_returns", 1>]>,
Accessor<"isTakes", [Clang<"ownership_takes", 1>]>];
let AdditionalMembers = [{
enum OwnershipKind { Holds, Returns, Takes };
OwnershipKind getOwnKind() const {
@ -1710,6 +1712,8 @@ def ReqdWorkGroupSize : InheritableAttr {
}
def RequireConstantInit : InheritableAttr {
// This attribute does not have a C [[]] spelling because it requires the
// CPlusPlus language option.
let Spellings = [Clang<"require_constant_initialization">];
let Subjects = SubjectList<[GlobalVar], ErrorDiag>;
let Documentation = [RequireConstantInitDocs];
@ -1788,23 +1792,23 @@ def StdCall : InheritableAttr {
}
def SwiftCall : InheritableAttr {
let Spellings = [Clang<"swiftcall">];
let Spellings = [Clang<"swiftcall", 1>];
// let Subjects = SubjectList<[Function]>;
let Documentation = [SwiftCallDocs];
}
def SwiftContext : ParameterABIAttr {
let Spellings = [Clang<"swift_context">];
let Spellings = [Clang<"swift_context", 1>];
let Documentation = [SwiftContextDocs];
}
def SwiftErrorResult : ParameterABIAttr {
let Spellings = [Clang<"swift_error_result">];
let Spellings = [Clang<"swift_error_result", 1>];
let Documentation = [SwiftErrorResultDocs];
}
def SwiftIndirectResult : ParameterABIAttr {
let Spellings = [Clang<"swift_indirect_result">];
let Spellings = [Clang<"swift_indirect_result", 1>];
let Documentation = [SwiftIndirectResultDocs];
}
@ -1828,25 +1832,25 @@ def ThisCall : InheritableAttr {
}
def VectorCall : InheritableAttr {
let Spellings = [Clang<"vectorcall">, Keyword<"__vectorcall">,
let Spellings = [Clang<"vectorcall", 1>, Keyword<"__vectorcall">,
Keyword<"_vectorcall">];
// let Subjects = [Function, ObjCMethod];
let Documentation = [VectorCallDocs];
}
def Pascal : InheritableAttr {
let Spellings = [Clang<"pascal">, Keyword<"__pascal">, Keyword<"_pascal">];
let Spellings = [Clang<"pascal", 1>, Keyword<"__pascal">, Keyword<"_pascal">];
// let Subjects = [Function, ObjCMethod];
let Documentation = [Undocumented];
}
def PreserveMost : InheritableAttr {
let Spellings = [Clang<"preserve_most">];
let Spellings = [Clang<"preserve_most", 1>];
let Documentation = [PreserveMostDocs];
}
def PreserveAll : InheritableAttr {
let Spellings = [Clang<"preserve_all">];
let Spellings = [Clang<"preserve_all", 1>];
let Documentation = [PreserveAllDocs];
}
@ -1922,7 +1926,7 @@ def TransparentUnion : InheritableAttr {
}
def Unavailable : InheritableAttr {
let Spellings = [Clang<"unavailable">];
let Spellings = [Clang<"unavailable", 1>];
let Args = [StringArgument<"Message", 1>,
EnumArgument<"ImplicitReason", "ImplicitReason",
["", "", "", ""],
@ -2032,7 +2036,7 @@ def Visibility : InheritableAttr {
def TypeVisibility : InheritableAttr {
let Clone = 0;
let Spellings = [Clang<"type_visibility">];
let Spellings = [Clang<"type_visibility", 1>];
let Args = [EnumArgument<"Visibility", "VisibilityType",
["default", "hidden", "internal", "protected"],
["Default", "Hidden", "Hidden", "Protected"]>];
@ -2041,6 +2045,9 @@ def TypeVisibility : InheritableAttr {
}
def VecReturn : InheritableAttr {
// This attribute does not have a C [[]] spelling because it only appertains
// to C++ struct/class/union.
// FIXME: should this attribute have a CPlusPlus language option?
let Spellings = [Clang<"vecreturn">];
let Subjects = SubjectList<[CXXRecord], ErrorDiag>;
let Documentation = [Undocumented];
@ -2067,7 +2074,7 @@ def Weak : InheritableAttr {
}
def WeakImport : InheritableAttr {
let Spellings = [Clang<"weak_import">];
let Spellings = [Clang<"weak_import", 1>];
let Documentation = [Undocumented];
}
@ -2080,7 +2087,7 @@ def WeakRef : InheritableAttr {
}
def LTOVisibilityPublic : InheritableAttr {
let Spellings = [Clang<"lto_visibility_public">];
let Spellings = [Clang<"lto_visibility_public", 1>];
let Subjects = SubjectList<[Record]>;
let Documentation = [LTOVisibilityDocs];
}
@ -2110,7 +2117,7 @@ def X86ForceAlignArgPointer : InheritableAttr, TargetSpecificAttr<TargetAnyX86>
}
def NoSanitize : InheritableAttr {
let Spellings = [Clang<"no_sanitize">];
let Spellings = [Clang<"no_sanitize", 1>];
let Args = [VariadicStringArgument<"Sanitizers">];
let Subjects = SubjectList<[Function, ObjCMethod, GlobalVar], ErrorDiag>;
let Documentation = [NoSanitizeDocs];
@ -2133,7 +2140,7 @@ def NoSanitizeSpecific : InheritableAttr {
let Spellings = [GCC<"no_address_safety_analysis">,
GCC<"no_sanitize_address">,
GCC<"no_sanitize_thread">,
Clang<"no_sanitize_memory">];
Clang<"no_sanitize_memory", 1>];
let Subjects = SubjectList<[Function, GlobalVar], ErrorDiag>;
let Documentation = [NoSanitizeAddressDocs, NoSanitizeThreadDocs,
NoSanitizeMemoryDocs];
@ -2266,7 +2273,7 @@ def RequiresCapability : InheritableAttr {
}
def NoThreadSafetyAnalysis : InheritableAttr {
let Spellings = [Clang<"no_thread_safety_analysis">];
let Spellings = [Clang<"no_thread_safety_analysis", 1>];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}

26
clang/test/Sema/attr-cx2.c Normal file
View File

@ -0,0 +1,26 @@
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -verify -fdouble-square-bracket-attributes %s
struct S {};
struct S * [[clang::address_space(1)]] Foo;
enum [[clang::enum_extensibility(open)]] EnumOpen {
C0 = 1, C1 = 10
};
enum [[clang::flag_enum]] EnumFlag {
D0 = 1, D1 = 8
};
void foo(void *c) [[clang::overloadable]];
void foo(char *c) [[clang::overloadable]];
void context_okay(void *context [[clang::swift_context]]) [[clang::swiftcall]];
void context_okay2(void *context [[clang::swift_context]], void *selfType, char **selfWitnessTable) [[clang::swiftcall]];
void *f1(void) [[clang::ownership_returns(foo)]];
void *f2() [[clang::ownership_returns(foo)]]; // expected-warning {{'ownership_returns' attribute only applies to non-K&R-style functions}}
void foo2(void) [[clang::unavailable("not available - replaced")]]; // expected-note {{'foo2' has been explicitly marked unavailable here}}
void bar(void) {
foo2(); // expected-error {{'foo2' is unavailable: not available - replaced}}
}