blob: a4a88d0fc59575dcb870c9d9a686fa80fa20d7ca [file] [log] [blame]
//==--- Attr.td - attribute definitions -----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// The documentation is organized by category. Attributes can have category-
// specific documentation that is collated within the larger document.
class DocumentationCategory<string name> {
string Name = name;
code Content = [{}];
}
def DocCatFunction : DocumentationCategory<"Function Attributes">;
def DocCatVariable : DocumentationCategory<"Variable Attributes">;
def DocCatType : DocumentationCategory<"Type Attributes">;
def DocCatStmt : DocumentationCategory<"Statement Attributes">;
// Attributes listed under the Undocumented category do not generate any public
// documentation. Ideally, this category should be used for internal-only
// attributes which contain no spellings.
def DocCatUndocumented : DocumentationCategory<"Undocumented">;
class DocDeprecated<string replacement = ""> {
// If the Replacement field is empty, no replacement will be listed with the
// documentation. Otherwise, the documentation will specify the attribute has
// been superseded by this replacement.
string Replacement = replacement;
}
// Specifies the documentation to be associated with the given category.
class Documentation {
DocumentationCategory Category;
code Content;
// If the heading is empty, one may be picked automatically. If the attribute
// only has one spelling, no heading is required as the attribute's sole
// spelling is sufficient. If all spellings are semantically common, the
// heading will be the semantic spelling. If the spellings are not
// semantically common and no heading is provided, an error will be emitted.
string Heading = "";
// When set, specifies that the attribute is deprecated and can optionally
// specify a replacement attribute.
DocDeprecated Deprecated;
}
// Specifies that the attribute is explicitly undocumented. This can be a
// helpful placeholder for the attribute while working on the implementation,
// but should not be used once feature work has been completed.
def Undocumented : Documentation {
let Category = DocCatUndocumented;
}
include "clang/Basic/AttrDocs.td"
// An attribute's subject is whatever it appertains to. In this file, it is
// more accurately a list of things that an attribute can appertain to. All
// Decls and Stmts are possibly AttrSubjects (even though the syntax may not
// allow attributes on a given Decl or Stmt).
class AttrSubject;
include "clang/Basic/DeclNodes.td"
include "clang/Basic/StmtNodes.td"
// A subset-subject is an AttrSubject constrained to operate only on some subset
// of that subject.
//
// The code fragment is a boolean expression that will confirm that the subject
// meets the requirements; the subject will have the name S, and will have the
// type specified by the base. It should be a simple boolean expression.
class SubsetSubject<AttrSubject base, code check> : AttrSubject {
AttrSubject Base = base;
code CheckCode = check;
}
// This is the type of a variable which C++11 allows alignas(...) to appertain
// to.
def NormalVar : SubsetSubject<Var,
[{S->getStorageClass() != VarDecl::Register &&
S->getKind() != Decl::ImplicitParam &&
S->getKind() != Decl::ParmVar &&
S->getKind() != Decl::NonTypeTemplateParm}]>;
def NonParmVar : SubsetSubject<Var,
[{S->getKind() != Decl::ParmVar}]>;
def NonBitField : SubsetSubject<Field,
[{!S->isBitField()}]>;
def ObjCClassMethod : SubsetSubject<ObjCMethod,
[{!S->isInstanceMethod()}]>;
def ObjCInstanceMethod : SubsetSubject<ObjCMethod,
[{S->isInstanceMethod()}]>;
def ObjCInterfaceDeclInitMethod : SubsetSubject<ObjCMethod,
[{S->getMethodFamily() == OMF_init &&
(isa<ObjCInterfaceDecl>(S->getDeclContext()) ||
(isa<ObjCCategoryDecl>(S->getDeclContext()) &&
cast<ObjCCategoryDecl>(S->getDeclContext())->IsClassExtension()))}]>;
def Struct : SubsetSubject<Record,
[{!S->isUnion()}]>;
def TLSVar : SubsetSubject<Var,
[{S->getTLSKind() != 0}]>;
def SharedVar : SubsetSubject<Var,
[{S->hasGlobalStorage() && !S->getTLSKind()}]>;
def GlobalVar : SubsetSubject<Var,
[{S->hasGlobalStorage()}]>;
// FIXME: this hack is needed because DeclNodes.td defines the base Decl node
// type to be a class, not a definition. This makes it impossible to create an
// attribute subject which accepts a Decl. Normally, this is not a problem,
// because the attribute can have no Subjects clause to accomplish this. But in
// the case of a SubsetSubject, there's no way to express it without this hack.
def DeclBase : AttrSubject;
def FunctionLike : SubsetSubject<DeclBase,
[{S->getFunctionType(false) != nullptr}]>;
def OpenCLKernelFunction : SubsetSubject<Function, [{
S->hasAttr<OpenCLKernelAttr>()
}]>;
// HasFunctionProto is a more strict version of FunctionLike, so it should
// never be specified in a Subjects list along with FunctionLike (due to the
// inclusive nature of subject testing).
def HasFunctionProto : SubsetSubject<DeclBase,
[{(S->getFunctionType(true) != nullptr &&
isa<FunctionProtoType>(S->getFunctionType())) ||
isa<ObjCMethodDecl>(S) ||
isa<BlockDecl>(S)}]>;
// A single argument to an attribute
class Argument<string name, bit optional, bit fake = 0> {
string Name = name;
bit Optional = optional;
/// A fake argument is used to store and serialize additional information
/// in an attribute without actually changing its parsing or pretty-printing.
bit Fake = fake;
}
class BoolArgument<string name, bit opt = 0, bit fake = 0> : Argument<name, opt,
fake>;
class IdentifierArgument<string name, bit opt = 0> : Argument<name, opt>;
class IntArgument<string name, bit opt = 0> : Argument<name, opt>;
class StringArgument<string name, bit opt = 0> : Argument<name, opt>;
class ExprArgument<string name, bit opt = 0> : Argument<name, opt>;
class FunctionArgument<string name, bit opt = 0, bit fake = 0> : Argument<name,
opt,
fake>;
class TypeArgument<string name, bit opt = 0> : Argument<name, opt>;
class UnsignedArgument<string name, bit opt = 0> : Argument<name, opt>;
class VariadicUnsignedArgument<string name> : Argument<name, 1>;
class VariadicExprArgument<string name> : Argument<name, 1>;
class VariadicStringArgument<string name> : Argument<name, 1>;
// A version of the form major.minor[.subminor].
class VersionArgument<string name, bit opt = 0> : Argument<name, opt>;
// This one's a doozy, so it gets its own special type
// It can be an unsigned integer, or a type. Either can
// be dependent.
class AlignedArgument<string name, bit opt = 0> : Argument<name, opt>;
// A bool argument with a default value
class DefaultBoolArgument<string name, bit default> : BoolArgument<name, 1> {
bit Default = default;
}
// An integer argument with a default value
class DefaultIntArgument<string name, int default> : IntArgument<name, 1> {
int Default = default;
}
// This argument is more complex, it includes the enumerator type name,
// a list of strings to accept, and a list of enumerators to map them to.
class EnumArgument<string name, string type, list<string> values,
list<string> enums, bit opt = 0, bit fake = 0>
: Argument<name, opt, fake> {
string Type = type;
list<string> Values = values;
list<string> Enums = enums;
}
// FIXME: There should be a VariadicArgument type that takes any other type
// of argument and generates the appropriate type.
class VariadicEnumArgument<string name, string type, list<string> values,
list<string> enums> : Argument<name, 1> {
string Type = type;
list<string> Values = values;
list<string> Enums = enums;
}
// Represents an attribute wrapped by another attribute.
class AttrArgument<string name, bit opt = 0> : Argument<name, opt>;
// This handles one spelling of an attribute.
class Spelling<string name, string variety> {
string Name = name;
string Variety = variety;
bit KnownToGCC;
}
class GNU<string name> : Spelling<name, "GNU">;
class Declspec<string name> : Spelling<name, "Declspec">;
class Microsoft<string name> : Spelling<name, "Microsoft">;
class CXX11<string namespace, string name, int version = 1>
: Spelling<name, "CXX11"> {
string Namespace = namespace;
int Version = version;
}
class Keyword<string name> : Spelling<name, "Keyword">;
class Pragma<string namespace, string name> : Spelling<name, "Pragma"> {
string Namespace = namespace;
}
// The GCC spelling implies GNU<name, "GNU"> and CXX11<"gnu", name> and also
// sets KnownToGCC to 1. This spelling should be used for any GCC-compatible
// attributes.
class GCC<string name> : Spelling<name, "GCC"> {
let KnownToGCC = 1;
}
class Accessor<string name, list<Spelling> spellings> {
string Name = name;
list<Spelling> Spellings = spellings;
}
class SubjectDiag<bit warn> {
bit Warn = warn;
}
def WarnDiag : SubjectDiag<1>;
def ErrorDiag : SubjectDiag<0>;
class SubjectList<list<AttrSubject> subjects, SubjectDiag diag = WarnDiag,
string customDiag = ""> {
list<AttrSubject> Subjects = subjects;
SubjectDiag Diag = diag;
string CustomDiag = customDiag;
}
class LangOpt<string name, bit negated = 0> {
string Name = name;
bit Negated = negated;
}
def MicrosoftExt : LangOpt<"MicrosoftExt">;
def Borland : LangOpt<"Borland">;
def CUDA : LangOpt<"CUDA">;
def COnly : LangOpt<"CPlusPlus", 1>;
def CPlusPlus : LangOpt<"CPlusPlus">;
def OpenCL : LangOpt<"OpenCL">;
def RenderScript : LangOpt<"RenderScript">;
// Defines targets for target-specific attributes. The list of strings should
// specify architectures for which the target applies, based off the ArchType
// enumeration in Triple.h.
class TargetArch<list<string> arches> {
list<string> Arches = arches;
list<string> OSes;
list<string> CXXABIs;
}
def TargetARM : TargetArch<["arm", "thumb", "armeb", "thumbeb"]>;
def TargetMips : TargetArch<["mips", "mipsel"]>;
def TargetMSP430 : TargetArch<["msp430"]>;
def TargetX86 : TargetArch<["x86"]>;
def TargetAnyX86 : TargetArch<["x86", "x86_64"]>;
def TargetWindows : TargetArch<["x86", "x86_64", "arm", "thumb"]> {
let OSes = ["Win32"];
}
def TargetMicrosoftCXXABI : TargetArch<["x86", "x86_64", "arm", "thumb"]> {
let CXXABIs = ["Microsoft"];
}
class Attr {
// The various ways in which an attribute can be spelled in source
list<Spelling> Spellings;
// The things to which an attribute can appertain
SubjectList Subjects;
// The arguments allowed on an attribute
list<Argument> Args = [];
// Accessors which should be generated for the attribute.
list<Accessor> Accessors = [];
// Set to true for attributes with arguments which require delayed parsing.
bit LateParsed = 0;
// Set to false to prevent an attribute from being propagated from a template
// to the instantiation.
bit Clone = 1;
// Set to true for attributes which must be instantiated within templates
bit TemplateDependent = 0;
// Set to true for attributes that have a corresponding AST node.
bit ASTNode = 1;
// Set to true for attributes which have handler in Sema.
bit SemaHandler = 1;
// Set to true for attributes that are completely ignored.
bit Ignored = 0;
// Set to true if the attribute's parsing does not match its semantic
// content. Eg) It parses 3 args, but semantically takes 4 args. Opts out of
// common attribute error checking.
bit HasCustomParsing = 0;
// Set to true if all of the attribute's arguments should be parsed in an
// unevaluated context.
bit ParseArgumentsAsUnevaluated = 0;
// Set to true if this attribute can be duplicated on a subject when merging
// attributes. By default, attributes are not merged.
bit DuplicatesAllowedWhileMerging = 0;
// Lists language options, one of which is required to be true for the
// attribute to be applicable. If empty, no language options are required.
list<LangOpt> LangOpts = [];
// Any additional text that should be included verbatim in the class.
// Note: Any additional data members will leak and should be constructed
// externally on the ASTContext.
code AdditionalMembers = [{}];
// Any documentation that should be associated with the attribute. Since an
// attribute may be documented under multiple categories, more than one
// Documentation entry may be listed.
list<Documentation> Documentation;
}
/// A type attribute is not processed on a declaration or a statement.
class TypeAttr : Attr {
// By default, type attributes do not get an AST node.
let ASTNode = 0;
}
/// A stmt attribute is not processed on a declaration or a type.
class StmtAttr : Attr;
/// An inheritable attribute is inherited by later redeclarations.
class InheritableAttr : Attr;
/// A target-specific attribute. This class is meant to be used as a mixin
/// with InheritableAttr or Attr depending on the attribute's needs.
class TargetSpecificAttr<TargetArch target> {
TargetArch Target = target;
// Attributes are generally required to have unique spellings for their names
// so that the parser can determine what kind of attribute it has parsed.
// However, target-specific attributes are special in that the attribute only
// "exists" for a given target. So two target-specific attributes can share
// the same name when they exist in different targets. To support this, a
// Kind can be explicitly specified for a target-specific attribute. This
// corresponds to the AttributeList::AT_* enum that is generated and it
// should contain a shared value between the attributes.
//
// Target-specific attributes which use this feature should ensure that the
// spellings match exactly betweeen the attributes, and if the arguments or
// subjects differ, should specify HasCustomParsing = 1 and implement their
// own parsing and semantic handling requirements as-needed.
string ParseKind;
}
/// An inheritable parameter attribute is inherited by later
/// redeclarations, even when it's written on a parameter.
class InheritableParamAttr : InheritableAttr;
/// An attribute which changes the ABI rules for a specific parameter.
class ParameterABIAttr : InheritableParamAttr {
let Subjects = SubjectList<[ParmVar]>;
}
/// An ignored attribute, which we parse but discard with no checking.
class IgnoredAttr : Attr {
let Ignored = 1;
let ASTNode = 0;
let SemaHandler = 0;
let Documentation = [Undocumented];
}
//
// Attributes begin here
//
def AbiTag : Attr {
let Spellings = [GCC<"abi_tag">];
let Args = [VariadicStringArgument<"Tags">];
let Subjects = SubjectList<[Struct, Var, Function, Namespace], ErrorDiag,
"ExpectedStructClassVariableFunctionOrInlineNamespace">;
let Documentation = [AbiTagsDocs];
}
def AddressSpace : TypeAttr {
let Spellings = [GNU<"address_space">];
let Args = [IntArgument<"AddressSpace">];
let Documentation = [Undocumented];
}
def Alias : Attr {
let Spellings = [GCC<"alias">];
let Args = [StringArgument<"Aliasee">];
let Subjects = SubjectList<[Function, GlobalVar], ErrorDiag,
"ExpectedFunctionOrGlobalVar">;
let Documentation = [Undocumented];
}
def Aligned : InheritableAttr {
let Spellings = [GCC<"aligned">, Declspec<"align">, Keyword<"alignas">,
Keyword<"_Alignas">];
// let Subjects = SubjectList<[NonBitField, NormalVar, Tag]>;
let Args = [AlignedArgument<"Alignment", 1>];
let Accessors = [Accessor<"isGNU", [GCC<"aligned">]>,
Accessor<"isC11", [Keyword<"_Alignas">]>,
Accessor<"isAlignas", [Keyword<"alignas">,
Keyword<"_Alignas">]>,
Accessor<"isDeclspec",[Declspec<"align">]>];
let Documentation = [Undocumented];
}
def AlignValue : Attr {
let Spellings = [
// Unfortunately, this is semantically an assertion, not a directive
// (something else must ensure the alignment), so aligned_value is a
// probably a better name. We might want to add an aligned_value spelling in
// the future (and a corresponding C++ attribute), but this can be done
// later once we decide if we also want them to have slightly-different
// semantics than Intel's align_value.
GNU<"align_value">
// Intel's compiler on Windows also supports:
// , Declspec<"align_value">
];
let Args = [ExprArgument<"Alignment">];
let Subjects = SubjectList<[Var, TypedefName], WarnDiag,
"ExpectedVariableOrTypedef">;
let Documentation = [AlignValueDocs];
}
def AlignMac68k : InheritableAttr {
// This attribute has no spellings as it is only ever created implicitly.
let Spellings = [];
let SemaHandler = 0;
let Documentation = [Undocumented];
}
def AlwaysInline : InheritableAttr {
let Spellings = [GCC<"always_inline">, Keyword<"__forceinline">];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def XRayInstrument : InheritableAttr {
let Spellings = [GNU<"xray_always_instrument">,
CXX11<"clang", "xray_always_instrument">,
GNU<"xray_never_instrument">,
CXX11<"clang", "xray_never_instrument">];
let Subjects = SubjectList<[CXXMethod, ObjCMethod, Function], WarnDiag,
"ExpectedFunctionOrMethod">;
let Accessors = [Accessor<"alwaysXRayInstrument",
[GNU<"xray_always_instrument">,
CXX11<"clang", "xray_always_instrument">]>,
Accessor<"neverXRayInstrument",
[GNU<"xray_never_instrument">,
CXX11<"clang", "xray_never_instrument">]>];
let Documentation = [XRayDocs];
}
def TLSModel : InheritableAttr {
let Spellings = [GCC<"tls_model">];
let Subjects = SubjectList<[TLSVar], ErrorDiag, "ExpectedTLSVar">;
let Args = [StringArgument<"Model">];
let Documentation = [TLSModelDocs];
}
def AnalyzerNoReturn : InheritableAttr {
let Spellings = [GNU<"analyzer_noreturn">];
let Documentation = [Undocumented];
}
def Annotate : InheritableParamAttr {
let Spellings = [GNU<"annotate">];
let Args = [StringArgument<"Annotation">];
let Documentation = [Undocumented];
}
def ARMInterrupt : InheritableAttr, TargetSpecificAttr<TargetARM> {
// NOTE: If you add any additional spellings, MSP430Interrupt's,
// MipsInterrupt's and AnyX86Interrupt's spellings must match.
let Spellings = [GNU<"interrupt">];
let Args = [EnumArgument<"Interrupt", "InterruptType",
["IRQ", "FIQ", "SWI", "ABORT", "UNDEF", ""],
["IRQ", "FIQ", "SWI", "ABORT", "UNDEF", "Generic"],
1>];
let ParseKind = "Interrupt";
let HasCustomParsing = 1;
let Documentation = [ARMInterruptDocs];
}
def AsmLabel : InheritableAttr {
let Spellings = [Keyword<"asm">, Keyword<"__asm__">];
let Args = [StringArgument<"Label">];
let SemaHandler = 0;
let Documentation = [Undocumented];
}
def Availability : InheritableAttr {
let Spellings = [GNU<"availability">];
let Args = [IdentifierArgument<"platform">, VersionArgument<"introduced">,
VersionArgument<"deprecated">, VersionArgument<"obsoleted">,
BoolArgument<"unavailable">, StringArgument<"message">,
BoolArgument<"strict">, StringArgument<"replacement">];
let AdditionalMembers =
[{static llvm::StringRef getPrettyPlatformName(llvm::StringRef Platform) {
return llvm::StringSwitch<llvm::StringRef>(Platform)
.Case("android", "Android")
.Case("ios", "iOS")
.Case("macos", "macOS")
.Case("tvos", "tvOS")
.Case("watchos", "watchOS")
.Case("ios_app_extension", "iOS (App Extension)")
.Case("macos_app_extension", "macOS (App Extension)")
.Case("tvos_app_extension", "tvOS (App Extension)")
.Case("watchos_app_extension", "watchOS (App Extension)")
.Case("swift", "Swift")
.Default(llvm::StringRef());
} }];
let HasCustomParsing = 1;
let DuplicatesAllowedWhileMerging = 1;
// let Subjects = SubjectList<[Named]>;
let Documentation = [AvailabilityDocs];
}
def Blocks : InheritableAttr {
let Spellings = [GNU<"blocks">];
let Args = [EnumArgument<"Type", "BlockType", ["byref"], ["ByRef"]>];
let Documentation = [Undocumented];
}
def Bounded : IgnoredAttr {
let Spellings = [GNU<"bounded">];
}
def CarriesDependency : InheritableParamAttr {
let Spellings = [GNU<"carries_dependency">,
CXX11<"","carries_dependency", 200809>];
let Subjects = SubjectList<[ParmVar, ObjCMethod, Function], ErrorDiag>;
let Documentation = [CarriesDependencyDocs];
}
def CDecl : InheritableAttr {
let Spellings = [GCC<"cdecl">, Keyword<"__cdecl">, Keyword<"_cdecl">];
// let Subjects = [Function, ObjCMethod];
let Documentation = [Undocumented];
}
// cf_audited_transfer indicates that the given function has been
// audited and has been marked with the appropriate cf_consumed and
// cf_returns_retained attributes. It is generally applied by
// '#pragma clang arc_cf_code_audited' rather than explicitly.
def CFAuditedTransfer : InheritableAttr {
let Spellings = [GNU<"cf_audited_transfer">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [Undocumented];
}
// cf_unknown_transfer is an explicit opt-out of cf_audited_transfer.
// It indicates that the function has unknown or unautomatable
// transfer semantics.
def CFUnknownTransfer : InheritableAttr {
let Spellings = [GNU<"cf_unknown_transfer">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [Undocumented];
}
def CFReturnsRetained : InheritableAttr {
let Spellings = [GNU<"cf_returns_retained">];
// let Subjects = SubjectList<[ObjCMethod, ObjCProperty, Function]>;
let Documentation = [Undocumented];
}
def CFReturnsNotRetained : InheritableAttr {
let Spellings = [GNU<"cf_returns_not_retained">];
// let Subjects = SubjectList<[ObjCMethod, ObjCProperty, Function]>;
let Documentation = [Undocumented];
}
def CFConsumed : InheritableParamAttr {
let Spellings = [GNU<"cf_consumed">];
let Subjects = SubjectList<[ParmVar]>;
let Documentation = [Undocumented];
}
def Cleanup : InheritableAttr {
let Spellings = [GCC<"cleanup">];
let Args = [FunctionArgument<"FunctionDecl">];
let Subjects = SubjectList<[Var]>;
let Documentation = [Undocumented];
}
def Cold : InheritableAttr {
let Spellings = [GCC<"cold">];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def Common : InheritableAttr {
let Spellings = [GCC<"common">];
let Subjects = SubjectList<[Var]>;
let Documentation = [Undocumented];
}
def Const : InheritableAttr {
let Spellings = [GCC<"const">, GCC<"__const">];
let Documentation = [Undocumented];
}
def Constructor : InheritableAttr {
let Spellings = [GCC<"constructor">];
let Args = [DefaultIntArgument<"Priority", 65535>];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
// CUDA attributes are spelled __attribute__((attr)) or __declspec(__attr__).
def CUDAConstant : InheritableAttr {
let Spellings = [GNU<"constant">, Declspec<"__constant__">];
let Subjects = SubjectList<[Var]>;
let LangOpts = [CUDA];
let Documentation = [Undocumented];
}
def CUDACudartBuiltin : IgnoredAttr {
let Spellings = [GNU<"cudart_builtin">, Declspec<"__cudart_builtin__">];
let LangOpts = [CUDA];
}
def CUDADevice : InheritableAttr {
let Spellings = [GNU<"device">, Declspec<"__device__">];
let Subjects = SubjectList<[Function, Var]>;
let LangOpts = [CUDA];
let Documentation = [Undocumented];
}
def CUDADeviceBuiltin : IgnoredAttr {
let Spellings = [GNU<"device_builtin">, Declspec<"__device_builtin__">];
let LangOpts = [CUDA];
}
def CUDADeviceBuiltinSurfaceType : IgnoredAttr {
let Spellings = [GNU<"device_builtin_surface_type">,
Declspec<"__device_builtin_surface_type__">];
let LangOpts = [CUDA];
}
def CUDADeviceBuiltinTextureType : IgnoredAttr {
let Spellings = [GNU<"device_builtin_texture_type">,
Declspec<"__device_builtin_texture_type__">];
let LangOpts = [CUDA];
}
def CUDAGlobal : InheritableAttr {
let Spellings = [GNU<"global">, Declspec<"__global__">];
let Subjects = SubjectList<[Function]>;
let LangOpts = [CUDA];
let Documentation = [Undocumented];
}
def CUDAHost : InheritableAttr {
let Spellings = [GNU<"host">, Declspec<"__host__">];
let Subjects = SubjectList<[Function]>;
let LangOpts = [CUDA];
let Documentation = [Undocumented];
}
def CUDAInvalidTarget : InheritableAttr {
let Spellings = [];
let Subjects = SubjectList<[Function]>;
let LangOpts = [CUDA];
let Documentation = [Undocumented];
}
def CUDALaunchBounds : InheritableAttr {
let Spellings = [GNU<"launch_bounds">, Declspec<"__launch_bounds__">];
let Args = [ExprArgument<"MaxThreads">, ExprArgument<"MinBlocks", 1>];
let LangOpts = [CUDA];
let Subjects = SubjectList<[ObjCMethod, FunctionLike], WarnDiag,
"ExpectedFunctionOrMethod">;
// An AST node is created for this attribute, but is not used by other parts
// of the compiler. However, this node needs to exist in the AST because
// non-LLVM backends may be relying on the attribute's presence.
let Documentation = [Undocumented];
}
def CUDAShared : InheritableAttr {
let Spellings = [GNU<"shared">, Declspec<"__shared__">];
let Subjects = SubjectList<[Var]>;
let LangOpts = [CUDA];
let Documentation = [Undocumented];
}
def C11NoReturn : InheritableAttr {
let Spellings = [Keyword<"_Noreturn">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let SemaHandler = 0;
let Documentation = [C11NoReturnDocs];
}
def CXX11NoReturn : InheritableAttr {
let Spellings = [CXX11<"","noreturn", 200809>];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [CXX11NoReturnDocs];
}
def OpenCLKernel : InheritableAttr {
let Spellings = [Keyword<"__kernel">, Keyword<"kernel">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [Undocumented];
}
def OpenCLUnrollHint : InheritableAttr {
let Spellings = [GNU<"opencl_unroll_hint">];
let Args = [UnsignedArgument<"UnrollHint">];
let Documentation = [OpenCLUnrollHintDocs];
}
// This attribute is both a type attribute, and a declaration attribute (for
// parameter variables).
def OpenCLAccess : Attr {
let Spellings = [Keyword<"__read_only">, Keyword<"read_only">,
Keyword<"__write_only">, Keyword<"write_only">,
Keyword<"__read_write">, Keyword<"read_write">];
let Subjects = SubjectList<[ParmVar, TypedefName], ErrorDiag,
"ExpectedParameterOrTypedef">;
let Accessors = [Accessor<"isReadOnly", [Keyword<"__read_only">,
Keyword<"read_only">]>,
Accessor<"isReadWrite", [Keyword<"__read_write">,
Keyword<"read_write">]>,
Accessor<"isWriteOnly", [Keyword<"__write_only">,
Keyword<"write_only">]>];
let Documentation = [OpenCLAccessDocs];
}
def OpenCLPrivateAddressSpace : TypeAttr {
let Spellings = [Keyword<"__private">, Keyword<"private">];
let Documentation = [OpenCLAddressSpacePrivateDocs];
}
def OpenCLGlobalAddressSpace : TypeAttr {
let Spellings = [Keyword<"__global">, Keyword<"global">];
let Documentation = [OpenCLAddressSpaceGlobalDocs];
}
def OpenCLLocalAddressSpace : TypeAttr {
let Spellings = [Keyword<"__local">, Keyword<"local">];
let Documentation = [OpenCLAddressSpaceLocalDocs];
}
def OpenCLConstantAddressSpace : TypeAttr {
let Spellings = [Keyword<"__constant">, Keyword<"constant">];
let Documentation = [OpenCLAddressSpaceConstantDocs];
}
def OpenCLGenericAddressSpace : TypeAttr {
let Spellings = [Keyword<"__generic">, Keyword<"generic">];
let Documentation = [OpenCLAddressSpaceGenericDocs];
}
def OpenCLNoSVM : Attr {
let Spellings = [GNU<"nosvm">];
let Subjects = SubjectList<[Var]>;
let Documentation = [OpenCLNoSVMDocs];
let LangOpts = [OpenCL];
let ASTNode = 0;
}
def RenderScriptKernel : Attr {
let Spellings = [GNU<"kernel">];
let Subjects = SubjectList<[Function]>;
let Documentation = [RenderScriptKernelAttributeDocs];
let LangOpts = [RenderScript];
}
def Deprecated : InheritableAttr {
let Spellings = [GCC<"deprecated">, Declspec<"deprecated">,
CXX11<"","deprecated", 201309>];
let Args = [StringArgument<"Message", 1>,
// An optional string argument that enables us to provide a
// Fix-It.
StringArgument<"Replacement", 1>];
let Documentation = [DeprecatedDocs];
}
def Destructor : InheritableAttr {
let Spellings = [GCC<"destructor">];
let Args = [DefaultIntArgument<"Priority", 65535>];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def EmptyBases : InheritableAttr, TargetSpecificAttr<TargetMicrosoftCXXABI> {
let Spellings = [Declspec<"empty_bases">];
let Subjects = SubjectList<[CXXRecord]>;
let Documentation = [EmptyBasesDocs];
}
def AllocSize : InheritableAttr {
let Spellings = [GCC<"alloc_size">];
let Subjects = SubjectList<[Function]>;
let Args = [IntArgument<"ElemSizeParam">, IntArgument<"NumElemsParam", 1>];
let TemplateDependent = 1;
let Documentation = [AllocSizeDocs];
}
def EnableIf : InheritableAttr {
let Spellings = [GNU<"enable_if">];
let Subjects = SubjectList<[Function]>;
let Args = [ExprArgument<"Cond">, StringArgument<"Message">];
let TemplateDependent = 1;
let Documentation = [EnableIfDocs];
}
def ExtVectorType : Attr {
let Spellings = [GNU<"ext_vector_type">];
let Subjects = SubjectList<[TypedefName], ErrorDiag>;
let Args = [ExprArgument<"NumElements">];
let ASTNode = 0;
let Documentation = [Undocumented];
}
def FallThrough : StmtAttr {
let Spellings = [CXX11<"", "fallthrough", 201603>,
CXX11<"clang", "fallthrough">];
// let Subjects = [NullStmt];
let Documentation = [FallthroughDocs];
}
def FastCall : InheritableAttr {
let Spellings = [GCC<"fastcall">, Keyword<"__fastcall">,
Keyword<"_fastcall">];
// let Subjects = [Function, ObjCMethod];
let Documentation = [FastCallDocs];
}
def RegCall : InheritableAttr {
let Spellings = [GCC<"regcall">, Keyword<"__regcall">];
let Documentation = [RegCallDocs];
}
def Final : InheritableAttr {
let Spellings = [Keyword<"final">, Keyword<"sealed">];
let Accessors = [Accessor<"isSpelledAsSealed", [Keyword<"sealed">]>];
let SemaHandler = 0;
let Documentation = [Undocumented];
}
def MinSize : InheritableAttr {
let Spellings = [GNU<"minsize">];
let Subjects = SubjectList<[Function, ObjCMethod], ErrorDiag>;
let Documentation = [Undocumented];
}
def FlagEnum : InheritableAttr {
let Spellings = [GNU<"flag_enum">];
let Subjects = SubjectList<[Enum]>;
let Documentation = [FlagEnumDocs];
let LangOpts = [COnly];
}
def Flatten : InheritableAttr {
let Spellings = [GCC<"flatten">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [FlattenDocs];
}
def Format : InheritableAttr {
let Spellings = [GCC<"format">];
let Args = [IdentifierArgument<"Type">, IntArgument<"FormatIdx">,
IntArgument<"FirstArg">];
let Subjects = SubjectList<[ObjCMethod, Block, HasFunctionProto], WarnDiag,
"ExpectedFunctionWithProtoType">;
let Documentation = [FormatDocs];
}
def FormatArg : InheritableAttr {
let Spellings = [GCC<"format_arg">];
let Args = [IntArgument<"FormatIdx">];
let Subjects = SubjectList<[ObjCMethod, HasFunctionProto], WarnDiag,
"ExpectedFunctionWithProtoType">;
let Documentation = [Undocumented];
}
def GNUInline : InheritableAttr {
let Spellings = [GCC<"gnu_inline">];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def Hot : InheritableAttr {
let Spellings = [GCC<"hot">];
let Subjects = SubjectList<[Function]>;
// An AST node is created for this attribute, but not actually used beyond
// semantic checking for mutual exclusion with the Cold attribute.
let Documentation = [Undocumented];
}
def IBAction : InheritableAttr {
let Spellings = [GNU<"ibaction">];
let Subjects = SubjectList<[ObjCInstanceMethod], WarnDiag,
"ExpectedObjCInstanceMethod">;
// An AST node is created for this attribute, but is not used by other parts
// of the compiler. However, this node needs to exist in the AST because
// external tools rely on it.
let Documentation = [Undocumented];
}
def IBOutlet : InheritableAttr {
let Spellings = [GNU<"iboutlet">];
// let Subjects = [ObjCIvar, ObjCProperty];
let Documentation = [Undocumented];
}
def IBOutletCollection : InheritableAttr {
let Spellings = [GNU<"iboutletcollection">];
let Args = [TypeArgument<"Interface", 1>];
// let Subjects = [ObjCIvar, ObjCProperty];
let Documentation = [Undocumented];
}
def IFunc : Attr {
let Spellings = [GCC<"ifunc">];
let Args = [StringArgument<"Resolver">];
let Subjects = SubjectList<[Function]>;
let Documentation = [IFuncDocs];
}
def Restrict : InheritableAttr {
let Spellings = [Declspec<"restrict">, GCC<"malloc">];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def LayoutVersion : InheritableAttr, TargetSpecificAttr<TargetMicrosoftCXXABI> {
let Spellings = [Declspec<"layout_version">];
let Args = [UnsignedArgument<"Version">];
let Subjects = SubjectList<[CXXRecord]>;
let Documentation = [LayoutVersionDocs];
}
def MaxFieldAlignment : InheritableAttr {
// This attribute has no spellings as it is only ever created implicitly.
let Spellings = [];
let Args = [UnsignedArgument<"Alignment">];
let SemaHandler = 0;
let Documentation = [Undocumented];
}
def MayAlias : InheritableAttr {
// FIXME: this is a type attribute in GCC, but a declaration attribute here.
let Spellings = [GCC<"may_alias">];
let Documentation = [Undocumented];
}
def MSABI : InheritableAttr {
let Spellings = [GCC<"ms_abi">];
// let Subjects = [Function, ObjCMethod];
let Documentation = [MSABIDocs];
}
def MSP430Interrupt : InheritableAttr, TargetSpecificAttr<TargetMSP430> {
// NOTE: If you add any additional spellings, ARMInterrupt's, MipsInterrupt's
// and AnyX86Interrupt's spellings must match.
let Spellings = [GNU<"interrupt">];
let Args = [UnsignedArgument<"Number">];
let ParseKind = "Interrupt";
let HasCustomParsing = 1;
let Documentation = [Undocumented];
}
def Mips16 : InheritableAttr, TargetSpecificAttr<TargetMips> {
let Spellings = [GCC<"mips16">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [Undocumented];
}
def MipsInterrupt : InheritableAttr, TargetSpecificAttr<TargetMips> {
// NOTE: If you add any additional spellings, ARMInterrupt's,
// MSP430Interrupt's and AnyX86Interrupt's spellings must match.
let Spellings = [GNU<"interrupt">];
let Subjects = SubjectList<[Function]>;
let Args = [EnumArgument<"Interrupt", "InterruptType",
["vector=sw0", "vector=sw1", "vector=hw0",
"vector=hw1", "vector=hw2", "vector=hw3",
"vector=hw4", "vector=hw5", "eic", ""],
["sw0", "sw1", "hw0", "hw1", "hw2", "hw3",
"hw4", "hw5", "eic", "eic"]
>];
let ParseKind = "Interrupt";
let Documentation = [MipsInterruptDocs];
}
def Mode : Attr {
let Spellings = [GCC<"mode">];
let Subjects = SubjectList<[Var, Enum, TypedefName, Field], ErrorDiag,
"ExpectedVariableEnumFieldOrTypedef">;
let Args = [IdentifierArgument<"Mode">];
let Documentation = [Undocumented];
}
def Naked : InheritableAttr {
let Spellings = [GCC<"naked">, Declspec<"naked">];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def NeonPolyVectorType : TypeAttr {
let Spellings = [GNU<"neon_polyvector_type">];
let Args = [IntArgument<"NumElements">];
let Documentation = [Undocumented];
}
def NeonVectorType : TypeAttr {
let Spellings = [GNU<"neon_vector_type">];
let Args = [IntArgument<"NumElements">];
let Documentation = [Undocumented];
}
def ReturnsTwice : InheritableAttr {
let Spellings = [GCC<"returns_twice">];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def DisableTailCalls : InheritableAttr {
let Spellings = [GNU<"disable_tail_calls">,
CXX11<"clang", "disable_tail_calls">];
let Subjects = SubjectList<[Function, ObjCMethod]>;
let Documentation = [DisableTailCallsDocs];
}
def NoAlias : InheritableAttr {
let Spellings = [Declspec<"noalias">];
let Subjects = SubjectList<[Function]>;
let Documentation = [NoAliasDocs];
}
def NoCommon : InheritableAttr {
let Spellings = [GCC<"nocommon">];
let Subjects = SubjectList<[Var]>;
let Documentation = [Undocumented];
}
def NoDebug : InheritableAttr {
let Spellings = [GCC<"nodebug">];
let Subjects = SubjectList<[FunctionLike, ObjCMethod, NonParmVar], WarnDiag,
"ExpectedVariableOrFunction">;
let Documentation = [NoDebugDocs];
}
def NoDuplicate : InheritableAttr {
let Spellings = [GNU<"noduplicate">, CXX11<"clang", "noduplicate">];
let Subjects = SubjectList<[Function]>;
let Documentation = [NoDuplicateDocs];
}
def Convergent : InheritableAttr {
let Spellings = [GNU<"convergent">, CXX11<"clang", "convergent">];
let Subjects = SubjectList<[Function]>;
let Documentation = [ConvergentDocs];
}
def NoInline : InheritableAttr {
let Spellings = [GCC<"noinline">, Declspec<"noinline">];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def NoMips16 : InheritableAttr, TargetSpecificAttr<TargetMips> {
let Spellings = [GCC<"nomips16">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [Undocumented];
}
// This is not a TargetSpecificAttr so that is silently accepted and
// ignored on other targets as encouraged by the OpenCL spec.
//
// See OpenCL 1.2 6.11.5: "It is our intention that a particular
// implementation of OpenCL be free to ignore all attributes and the
// resulting executable binary will produce the same result."
//
// However, only AMD GPU targets will emit the corresponding IR
// attribute.
//
// FIXME: This provides a sub-optimal error message if you attempt to
// use this in CUDA, since CUDA does not use the same terminology.
//
// FIXME: SubjectList should be for OpenCLKernelFunction, but is not to
// workaround needing to see kernel attribute before others to know if
// this should be rejected on non-kernels.
def AMDGPUFlatWorkGroupSize : InheritableAttr {
let Spellings = [GNU<"amdgpu_flat_work_group_size">];
let Args = [UnsignedArgument<"Min">, UnsignedArgument<"Max">];
let Documentation = [AMDGPUFlatWorkGroupSizeDocs];
let Subjects = SubjectList<[Function], ErrorDiag, "ExpectedKernelFunction">;
}
def AMDGPUWavesPerEU : InheritableAttr {
let Spellings = [GNU<"amdgpu_waves_per_eu">];
let Args = [UnsignedArgument<"Min">, UnsignedArgument<"Max", 1>];
let Documentation = [AMDGPUWavesPerEUDocs];
let Subjects = SubjectList<[Function], ErrorDiag, "ExpectedKernelFunction">;
}
def AMDGPUNumSGPR : InheritableAttr {
let Spellings = [GNU<"amdgpu_num_sgpr">];
let Args = [UnsignedArgument<"NumSGPR">];
let Documentation = [AMDGPUNumSGPRNumVGPRDocs];
let Subjects = SubjectList<[Function], ErrorDiag, "ExpectedKernelFunction">;
}
def AMDGPUNumVGPR : InheritableAttr {
let Spellings = [GNU<"amdgpu_num_vgpr">];
let Args = [UnsignedArgument<"NumVGPR">];
let Documentation = [AMDGPUNumSGPRNumVGPRDocs];
let Subjects = SubjectList<[Function], ErrorDiag, "ExpectedKernelFunction">;
}
def NoSplitStack : InheritableAttr {
let Spellings = [GCC<"no_split_stack">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [NoSplitStackDocs];
}
def NonNull : InheritableAttr {
let Spellings = [GCC<"nonnull">];
let Subjects = SubjectList<[ObjCMethod, HasFunctionProto, ParmVar], WarnDiag,
"ExpectedFunctionMethodOrParameter">;
let Args = [VariadicUnsignedArgument<"Args">];
let AdditionalMembers =
[{bool isNonNull(unsigned idx) const {
if (!args_size())
return true;
for (const auto &V : args())
if (V == idx)
return true;
return false;
} }];
// FIXME: We should merge duplicates into a single nonnull attribute.
let DuplicatesAllowedWhileMerging = 1;
let Documentation = [NonNullDocs];
}
def ReturnsNonNull : InheritableAttr {
let Spellings = [GCC<"returns_nonnull">];
let Subjects = SubjectList<[ObjCMethod, Function], WarnDiag,
"ExpectedFunctionOrMethod">;
let Documentation = [ReturnsNonNullDocs];
}
// 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 = [GNU<"pass_object_size">];
let Args = [IntArgument<"Type">];
let Subjects = SubjectList<[ParmVar]>;
let Documentation = [PassObjectSizeDocs];
}
// Nullability type attributes.
def TypeNonNull : TypeAttr {
let Spellings = [Keyword<"_Nonnull">];
let Documentation = [TypeNonNullDocs];
}
def TypeNullable : TypeAttr {
let Spellings = [Keyword<"_Nullable">];
let Documentation = [TypeNullableDocs];
}
def TypeNullUnspecified : TypeAttr {
let Spellings = [Keyword<"_Null_unspecified">];
let Documentation = [TypeNullUnspecifiedDocs];
}
def ObjCKindOf : TypeAttr {
let Spellings = [Keyword<"__kindof">];
let Documentation = [Undocumented];
}
def NoEscape : InheritableAttr {
let Spellings = [GCC<"noescape">];
let Subjects = SubjectList<[ParmVar], WarnDiag, "ExpectedParameter">;
let Documentation = [Undocumented];
}
def AssumeAligned : InheritableAttr {
let Spellings = [GCC<"assume_aligned">];
let Subjects = SubjectList<[ObjCMethod, Function]>;
let Args = [ExprArgument<"Alignment">, ExprArgument<"Offset", 1>];
let Documentation = [AssumeAlignedDocs];
}
def NoReturn : InheritableAttr {
let Spellings = [GCC<"noreturn">, Declspec<"noreturn">];
// FIXME: Does GCC allow this on the function instead?
let Documentation = [Undocumented];
}
def NoInstrumentFunction : InheritableAttr {
let Spellings = [GCC<"no_instrument_function">];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def NotTailCalled : InheritableAttr {
let Spellings = [GNU<"not_tail_called">, CXX11<"clang", "not_tail_called">];
let Subjects = SubjectList<[Function]>;
let Documentation = [NotTailCalledDocs];
}
def NoThrow : InheritableAttr {
let Spellings = [GCC<"nothrow">, Declspec<"nothrow">];
let Documentation = [Undocumented];
}
def NvWeak : IgnoredAttr {
// No Declspec spelling of this attribute; the CUDA headers use
// __attribute__((nv_weak)) unconditionally.
let Spellings = [GNU<"nv_weak">];
let LangOpts = [CUDA];
}
def ObjCBridge : InheritableAttr {
let Spellings = [GNU<"objc_bridge">];
let Subjects = SubjectList<[Record, TypedefName], ErrorDiag,
"ExpectedStructOrUnionOrTypedef">;
let Args = [IdentifierArgument<"BridgedType">];
let Documentation = [Undocumented];
}
def ObjCBridgeMutable : InheritableAttr {
let Spellings = [GNU<"objc_bridge_mutable">];
let Subjects = SubjectList<[Record], ErrorDiag>;
let Args = [IdentifierArgument<"BridgedType">];
let Documentation = [Undocumented];
}
def ObjCBridgeRelated : InheritableAttr {
let Spellings = [GNU<"objc_bridge_related">];
let Subjects = SubjectList<[Record], ErrorDiag>;
let Args = [IdentifierArgument<"RelatedClass">,
IdentifierArgument<"ClassMethod", 1>,
IdentifierArgument<"InstanceMethod", 1>];
let HasCustomParsing = 1;
let Documentation = [Undocumented];
}
def NSErrorDomain : Attr {
let Spellings = [GNU<"ns_error_domain">];
let Args = [IdentifierArgument<"ErrorDomain">];
let Documentation = [NSErrorDomainDocs];
}
def NSReturnsRetained : InheritableAttr {
let Spellings = [GNU<"ns_returns_retained">];
// let Subjects = SubjectList<[ObjCMethod, ObjCProperty, Function]>;
let Documentation = [Undocumented];
}
def NSReturnsNotRetained : InheritableAttr {
let Spellings = [GNU<"ns_returns_not_retained">];
// let Subjects = SubjectList<[ObjCMethod, ObjCProperty, Function]>;
let Documentation = [Undocumented];
}
def NSReturnsAutoreleased : InheritableAttr {
let Spellings = [GNU<"ns_returns_autoreleased">];
// let Subjects = SubjectList<[ObjCMethod, ObjCProperty, Function]>;
let Documentation = [Undocumented];
}
def NSConsumesSelf : InheritableAttr {
let Spellings = [GNU<"ns_consumes_self">];
let Subjects = SubjectList<[ObjCMethod]>;
let Documentation = [Undocumented];
}
def NSConsumed : InheritableParamAttr {
let Spellings = [GNU<"ns_consumed">];
let Subjects = SubjectList<[ParmVar]>;
let Documentation = [Undocumented];
}
def ObjCException : InheritableAttr {
let Spellings = [GNU<"objc_exception">];
let Subjects = SubjectList<[ObjCInterface], ErrorDiag>;
let Documentation = [Undocumented];
}
def ObjCMethodFamily : InheritableAttr {
let Spellings = [GNU<"objc_method_family">];
let Subjects = SubjectList<[ObjCMethod], ErrorDiag>;
let Args = [EnumArgument<"Family", "FamilyKind",
["none", "alloc", "copy", "init", "mutableCopy", "new"],
["OMF_None", "OMF_alloc", "OMF_copy", "OMF_init",
"OMF_mutableCopy", "OMF_new"]>];
let Documentation = [ObjCMethodFamilyDocs];
}
def ObjCNSObject : InheritableAttr {
let Spellings = [GNU<"NSObject">];
let Documentation = [Undocumented];
}
def ObjCIndependentClass : InheritableAttr {
let Spellings = [GNU<"objc_independent_class">];
let Documentation = [Undocumented];
}
def ObjCPreciseLifetime : InheritableAttr {
let Spellings = [GNU<"objc_precise_lifetime">];
let Subjects = SubjectList<[Var], ErrorDiag>;
let Documentation = [Undocumented];
}
def ObjCReturnsInnerPointer : InheritableAttr {
let Spellings = [GNU<"objc_returns_inner_pointer">];
let Subjects = SubjectList<[ObjCMethod, ObjCProperty], ErrorDiag>;
let Documentation = [Undocumented];
}
def ObjCRequiresSuper : InheritableAttr {
let Spellings = [GNU<"objc_requires_super">];
let Subjects = SubjectList<[ObjCMethod], ErrorDiag>;
let Documentation = [ObjCRequiresSuperDocs];
}
def ObjCRootClass : InheritableAttr {
let Spellings = [GNU<"objc_root_class">];
let Subjects = SubjectList<[ObjCInterface], ErrorDiag>;
let Documentation = [Undocumented];
}
def ObjCSubclassingRestricted : InheritableAttr {
let Spellings = [GNU<"objc_subclassing_restricted">];
let Subjects = SubjectList<[ObjCInterface], ErrorDiag>;
let Documentation = [ObjCSubclassingRestrictedDocs];
}
def ObjCCompleteDefinition : InheritableAttr {
let Spellings = [GNU<"objc_complete_definition">];
let Subjects = SubjectList<[ObjCInterface], ErrorDiag>;
let Documentation = [Undocumented];
}
def ObjCExplicitProtocolImpl : InheritableAttr {
let Spellings = [GNU<"objc_protocol_requires_explicit_implementation">];
let Subjects = SubjectList<[ObjCProtocol], ErrorDiag>;
let Documentation = [Undocumented];
}
def ObjCDesignatedInitializer : Attr {
let Spellings = [GNU<"objc_designated_initializer">];
let Subjects = SubjectList<[ObjCInterfaceDeclInitMethod], ErrorDiag,
"ExpectedObjCInterfaceDeclInitMethod">;
let Documentation = [Undocumented];
}
def ObjCRuntimeName : Attr {
let Spellings = [GNU<"objc_runtime_name">];
let Subjects = SubjectList<[ObjCInterface, ObjCProtocol], ErrorDiag>;
let Args = [StringArgument<"MetadataName">];
let Documentation = [ObjCRuntimeNameDocs];
}
def ObjCRuntimeVisible : Attr {
let Spellings = [GNU<"objc_runtime_visible">];
let Subjects = SubjectList<[ObjCInterface], ErrorDiag>;
let Documentation = [ObjCRuntimeVisibleDocs];
}
def ObjCBoxable : Attr {
let Spellings = [GNU<"objc_boxable">];
let Subjects = SubjectList<[Record], ErrorDiag, "ExpectedStructOrUnion">;
let Documentation = [ObjCBoxableDocs];
}
def OptimizeNone : InheritableAttr {
let Spellings = [GNU<"optnone">, CXX11<"clang", "optnone">];
let Subjects = SubjectList<[Function, ObjCMethod]>;
let Documentation = [OptnoneDocs];
}
def Overloadable : Attr {
let Spellings = [GNU<"overloadable">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [OverloadableDocs];
}
def Override : InheritableAttr {
let Spellings = [Keyword<"override">];
let SemaHandler = 0;
let Documentation = [Undocumented];
}
def Ownership : InheritableAttr {
let Spellings = [GNU<"ownership_holds">, GNU<"ownership_returns">,
GNU<"ownership_takes">];
let Accessors = [Accessor<"isHolds", [GNU<"ownership_holds">]>,
Accessor<"isReturns", [GNU<"ownership_returns">]>,
Accessor<"isTakes", [GNU<"ownership_takes">]>];
let AdditionalMembers = [{
enum OwnershipKind { Holds, Returns, Takes };
OwnershipKind getOwnKind() const {
return isHolds() ? Holds :
isTakes() ? Takes :
Returns;
}
}];
let Args = [IdentifierArgument<"Module">, VariadicUnsignedArgument<"Args">];
let Subjects = SubjectList<[HasFunctionProto], WarnDiag,
"ExpectedFunctionWithProtoType">;
let Documentation = [Undocumented];
}
def Packed : InheritableAttr {
let Spellings = [GCC<"packed">];
// let Subjects = [Tag, Field];
let Documentation = [Undocumented];
}
def IntelOclBicc : InheritableAttr {
let Spellings = [GNU<"intel_ocl_bicc">];
// let Subjects = [Function, ObjCMethod];
let Documentation = [Undocumented];
}
def Pcs : InheritableAttr {
let Spellings = [GCC<"pcs">];
let Args = [EnumArgument<"PCS", "PCSType",
["aapcs", "aapcs-vfp"],
["AAPCS", "AAPCS_VFP"]>];
// let Subjects = [Function, ObjCMethod];
let Documentation = [PcsDocs];
}
def Pure : InheritableAttr {
let Spellings = [GCC<"pure">];
let Documentation = [Undocumented];
}
def Regparm : TypeAttr {
let Spellings = [GCC<"regparm">];
let Args = [UnsignedArgument<"NumParams">];
let Documentation = [RegparmDocs];
}
def SwiftBridge : Attr {
let Spellings = [GNU<"swift_bridge">];
let Subjects = SubjectList<[Tag, TypedefName, ObjCInterface, ObjCProtocol],
ErrorDiag, "ExpectedType">;
let Args = [StringArgument<"SwiftType">];
let Documentation = [SwiftBridgeDocs];
}
def SwiftError : InheritableAttr {
let Spellings = [GCC<"swift_error">];
let Args = [EnumArgument<"Convention", "ConventionKind",
["none", "nonnull_error", "null_result", "zero_result", "nonzero_result"],
["None", "NonNullError", "NullResult", "ZeroResult", "NonZeroResult"]>];
let Subjects = SubjectList<[ObjCMethod, Function], ErrorDiag>;
let Documentation = [SwiftErrorDocs];
}
def SwiftName : InheritableAttr {
let Spellings = [GCC<"swift_name">];
let Args = [StringArgument<"Name">];
// Proper subject list disabled because of the custom error needed.
// Let's avoid merge conflicts for now.
// let Subjects = SubjectList<[EnumConstant, ObjCProtocol, ObjCClassMethod],
// ErrorDiag, "ExpectedSwiftNameSubjects">;
let Documentation = [Undocumented];
}
def SwiftNewtype : Attr {
let Spellings = [GNU<"swift_newtype">, GNU<"swift_wrapper">];
let Subjects = SubjectList<[TypedefName], ErrorDiag, "ExpectedType">;
let Args = [EnumArgument<"NewtypeKind", "NewtypeKind",
["struct", "enum"],
["NK_Struct", "NK_Enum"]>];
let Documentation = [SwiftNewtypeDocs];
}
def SwiftPrivate : InheritableAttr {
let Spellings = [GCC<"swift_private">];
let Documentation = [Undocumented];
}
def SwiftSuppressFactoryAsInit : InheritableAttr {
// This attribute has no spellings as it is only ever created implicitly
// from API notes.
let Spellings = [];
let SemaHandler = 0;
let Documentation = [Undocumented];
}
def SwiftImportPropertyAsAccessors : InheritableAttr {
// This attribute has no spellings as it is only ever created implicitly
// from API notes.
let Spellings = [];
let SemaHandler = 0;
let Documentation = [Undocumented];
}
def SwiftVersioned : Attr {
// This attribute has no spellings as it is only ever created implicitly
// from API notes.
let Spellings = [];
let Args = [VersionArgument<"Version">, AttrArgument<"AttrToAdd">];
let SemaHandler = 0;
let Documentation = [Undocumented];
}
def SwiftVersionedRemoval : Attr {
// This attribute has no spellings as it is only ever created implicitly
// from API notes.
let Spellings = [];
let Args = [VersionArgument<"Version">, UnsignedArgument<"RawKind">];
let SemaHandler = 0;
let Documentation = [Undocumented];
let AdditionalMembers = [{
attr::Kind getAttrKindToRemove() const {
return static_cast<attr::Kind>(getRawKind());
}
}];
}
def ReqdWorkGroupSize : InheritableAttr {
let Spellings = [GNU<"reqd_work_group_size">];
let Args = [UnsignedArgument<"XDim">, UnsignedArgument<"YDim">,
UnsignedArgument<"ZDim">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [Undocumented];
}
def RequireConstantInit : InheritableAttr {
let Spellings = [GNU<"require_constant_initialization">,
CXX11<"clang", "require_constant_initialization">];
let Subjects = SubjectList<[GlobalVar], ErrorDiag,
"ExpectedStaticOrTLSVar">;
let Documentation = [RequireConstantInitDocs];
let LangOpts = [CPlusPlus];
}
def WorkGroupSizeHint : InheritableAttr {
let Spellings = [GNU<"work_group_size_hint">];
let Args = [UnsignedArgument<"XDim">,
UnsignedArgument<"YDim">,
UnsignedArgument<"ZDim">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [Undocumented];
}
def InitPriority : InheritableAttr {
let Spellings = [GNU<"init_priority">];
let Args = [UnsignedArgument<"Priority">];
let Subjects = SubjectList<[Var], ErrorDiag>;
let Documentation = [Undocumented];
}
def Section : InheritableAttr {
let Spellings = [GCC<"section">, Declspec<"allocate">];
let Args = [StringArgument<"Name">];
let Subjects = SubjectList<[Function, GlobalVar,
ObjCMethod, ObjCProperty], ErrorDiag,
"ExpectedFunctionGlobalVarMethodOrProperty">;
let Documentation = [SectionDocs];
}
def Sentinel : InheritableAttr {
let Spellings = [GCC<"sentinel">];
let Args = [DefaultIntArgument<"Sentinel", 0>,
DefaultIntArgument<"NullPos", 0>];
// let Subjects = SubjectList<[Function, ObjCMethod, Block, Var]>;
let Documentation = [Undocumented];
}
def StdCall : InheritableAttr {
let Spellings = [GCC<"stdcall">, Keyword<"__stdcall">, Keyword<"_stdcall">];
// let Subjects = [Function, ObjCMethod];
let Documentation = [StdCallDocs];
}
def SwiftCall : InheritableAttr {
let Spellings = [GCC<"swiftcall">];
// let Subjects = SubjectList<[Function]>;
let Documentation = [SwiftCallDocs];
}
def SwiftContext : ParameterABIAttr {
let Spellings = [GCC<"swift_context">];
let Documentation = [SwiftContextDocs];
}
def SwiftErrorResult : ParameterABIAttr {
let Spellings = [GCC<"swift_error_result">];
let Documentation = [SwiftErrorResultDocs];
}
def SwiftIndirectResult : ParameterABIAttr {
let Spellings = [GCC<"swift_indirect_result">];
let Documentation = [SwiftIndirectResultDocs];
}
def SysVABI : InheritableAttr {
let Spellings = [GCC<"sysv_abi">];
// let Subjects = [Function, ObjCMethod];
let Documentation = [Undocumented];
}
def ThisCall : InheritableAttr {
let Spellings = [GCC<"thiscall">, Keyword<"__thiscall">,
Keyword<"_thiscall">];
// let Subjects = [Function, ObjCMethod];
let Documentation = [ThisCallDocs];
}
def VectorCall : InheritableAttr {
let Spellings = [GNU<"vectorcall">, Keyword<"__vectorcall">,
Keyword<"_vectorcall">];
// let Subjects = [Function, ObjCMethod];
let Documentation = [VectorCallDocs];
}
def Pascal : InheritableAttr {
let Spellings = [GNU<"pascal">, Keyword<"__pascal">, Keyword<"_pascal">];
// let Subjects = [Function, ObjCMethod];
let Documentation = [Undocumented];
}
def PreserveMost : InheritableAttr {
let Spellings = [GNU<"preserve_most">];
let Documentation = [PreserveMostDocs];
}
def PreserveAll : InheritableAttr {
let Spellings = [GNU<"preserve_all">];
let Documentation = [PreserveAllDocs];
}
def Target : InheritableAttr {
let Spellings = [GCC<"target">];
let Args = [StringArgument<"featuresStr">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [TargetDocs];
let AdditionalMembers = [{
typedef std::pair<std::vector<std::string>, StringRef> ParsedTargetAttr;
ParsedTargetAttr parse() const {
ParsedTargetAttr Ret;
SmallVector<StringRef, 1> AttrFeatures;
getFeaturesStr().split(AttrFeatures, ",");
// Grab the various features and prepend a "+" to turn on the feature to
// the backend and add them to our existing set of features.
for (auto &Feature : AttrFeatures) {
// Go ahead and trim whitespace rather than either erroring or
// accepting it weirdly.
Feature = Feature.trim();
// We don't support cpu tuning this way currently.
// TODO: Support the fpmath option. It will require checking
// overall feature validity for the function with the rest of the
// attributes on the function.
if (Feature.startswith("fpmath=") || Feature.startswith("tune="))
continue;
// While we're here iterating check for a different target cpu.
if (Feature.startswith("arch="))
Ret.second = Feature.split("=").second.trim();
else if (Feature.startswith("no-"))
Ret.first.push_back("-" + Feature.split("-").second.str());
else
Ret.first.push_back("+" + Feature.str());
}
return Ret;
}
}];
}
def TransparentUnion : InheritableAttr {
let Spellings = [GCC<"transparent_union">];
// let Subjects = SubjectList<[Record, TypedefName]>;
let Documentation = [TransparentUnionDocs];
let LangOpts = [COnly];
}
def Unavailable : InheritableAttr {
let Spellings = [GNU<"unavailable">];
let Args = [StringArgument<"Message", 1>,
EnumArgument<"ImplicitReason", "ImplicitReason",
["", "", "", ""],
["IR_None",
"IR_ARCForbiddenType",
"IR_ForbiddenWeak",
"IR_ARCForbiddenConversion",
"IR_ARCInitReturnsUnrelated",
"IR_ARCFieldWithOwnership"], 1, /*fake*/ 1>];
let Documentation = [Undocumented];
}
def DiagnoseIf : InheritableAttr {
let Spellings = [GNU<"diagnose_if">];
let Subjects = SubjectList<[Function]>;
let Args = [ExprArgument<"Cond">, StringArgument<"Message">,
EnumArgument<"DiagnosticType",
"DiagnosticType",
["error", "warning"],
["DT_Error", "DT_Warning"]>,
BoolArgument<"ArgDependent", 0, /*fake*/ 1>,
FunctionArgument<"Parent", 0, /*fake*/ 1>];
let DuplicatesAllowedWhileMerging = 1;
let LateParsed = 1;
let AdditionalMembers = [{
bool isError() const { return diagnosticType == DT_Error; }
bool isWarning() const { return diagnosticType == DT_Warning; }
}];
let TemplateDependent = 1;
let Documentation = [DiagnoseIfDocs];
}
def ArcWeakrefUnavailable : InheritableAttr {
let Spellings = [GNU<"objc_arc_weak_reference_unavailable">];
let Subjects = SubjectList<[ObjCInterface], ErrorDiag>;
let Documentation = [Undocumented];
}
def ObjCGC : TypeAttr {
let Spellings = [GNU<"objc_gc">];
let Args = [IdentifierArgument<"Kind">];
let Documentation = [Undocumented];
}
def ObjCOwnership : InheritableAttr {
let Spellings = [GNU<"objc_ownership">];
let Args = [IdentifierArgument<"Kind">];
let ASTNode = 0;
let Documentation = [Undocumented];
}
def ObjCRequiresPropertyDefs : InheritableAttr {
let Spellings = [GNU<"objc_requires_property_definitions">];
let Subjects = SubjectList<[ObjCInterface], ErrorDiag>;
let Documentation = [Undocumented];
}
def Unused : InheritableAttr {
let Spellings = [CXX11<"", "maybe_unused", 201603>, GCC<"unused">];
let Subjects = SubjectList<[Var, ObjCIvar, Type, Enum, EnumConstant, Label,
Field, ObjCMethod, FunctionLike], WarnDiag,
"ExpectedForMaybeUnused">;
let Documentation = [WarnMaybeUnusedDocs];
}
def Used : InheritableAttr {
let Spellings = [GCC<"used">];
let Documentation = [Undocumented];
}
def Uuid : InheritableAttr {
let Spellings = [Declspec<"uuid">, Microsoft<"uuid">];
let Args = [StringArgument<"Guid">];
let Subjects = SubjectList<[Record, Enum], WarnDiag, "ExpectedEnumOrClass">;
// FIXME: Allow expressing logical AND for LangOpts. Our condition should be:
// CPlusPlus && (MicrosoftExt || Borland)
let LangOpts = [MicrosoftExt, Borland];
let Documentation = [Undocumented];
}
def VectorSize : TypeAttr {
let Spellings = [GCC<"vector_size">];
let Args = [ExprArgument<"NumBytes">];
let Documentation = [Undocumented];
}
def VecTypeHint : InheritableAttr {
let Spellings = [GNU<"vec_type_hint">];
let Args = [TypeArgument<"TypeHint">];
let Subjects = SubjectList<[Function], ErrorDiag>;
let Documentation = [Undocumented];
}
def Visibility : InheritableAttr {
let Clone = 0;
let Spellings = [GCC<"visibility">];
let Args = [EnumArgument<"Visibility", "VisibilityType",
["default", "hidden", "internal", "protected"],
["Default", "Hidden", "Hidden", "Protected"]>];
let Documentation = [Undocumented];
}
def TypeVisibility : InheritableAttr {
let Clone = 0;
let Spellings = [GNU<"type_visibility">, CXX11<"clang", "type_visibility">];
let Args = [EnumArgument<"Visibility", "VisibilityType",
["default", "hidden", "internal", "protected"],
["Default", "Hidden", "Hidden", "Protected"]>];
// let Subjects = [Tag, ObjCInterface, Namespace];
let Documentation = [Undocumented];
}
def VecReturn : InheritableAttr {
let Spellings = [GNU<"vecreturn">];
let Subjects = SubjectList<[CXXRecord], ErrorDiag>;
let Documentation = [Undocumented];
}
def WarnUnused : InheritableAttr {
let Spellings = [GNU<"warn_unused">];
let Subjects = SubjectList<[Record]>;
let Documentation = [Undocumented];
}
def WarnUnusedResult : InheritableAttr {
let Spellings = [CXX11<"", "nodiscard", 201603>,
CXX11<"clang", "warn_unused_result">,
GCC<"warn_unused_result">];
let Subjects = SubjectList<[ObjCMethod, Enum, CXXRecord, FunctionLike],
WarnDiag, "ExpectedFunctionMethodEnumOrClass">;
let Documentation = [WarnUnusedResultsDocs];
}
def Weak : InheritableAttr {
let Spellings = [GCC<"weak">];
let Subjects = SubjectList<[Var, Function, CXXRecord]>;
let Documentation = [Undocumented];
}
def WeakImport : InheritableAttr {
let Spellings = [GNU<"weak_import">];
let Documentation = [Undocumented];
}
def WeakRef : InheritableAttr {
let Spellings = [GCC<"weakref">];
// A WeakRef that has an argument is treated as being an AliasAttr
let Args = [StringArgument<"Aliasee", 1>];
let Subjects = SubjectList<[Var, Function], ErrorDiag>;
let Documentation = [Undocumented];
}
def LTOVisibilityPublic : InheritableAttr {
let Spellings = [CXX11<"clang", "lto_visibility_public">];
let Subjects = SubjectList<[Record]>;
let Documentation = [LTOVisibilityDocs];
}
def AnyX86Interrupt : InheritableAttr, TargetSpecificAttr<TargetAnyX86> {
// NOTE: If you add any additional spellings, ARMInterrupt's,
// MSP430Interrupt's and MipsInterrupt's spellings must match.
let Spellings = [GNU<"interrupt">];
let Subjects = SubjectList<[HasFunctionProto]>;
let ParseKind = "Interrupt";
let HasCustomParsing = 1;
let Documentation = [AnyX86InterruptDocs];
}
def X86ForceAlignArgPointer : InheritableAttr, TargetSpecificAttr<TargetX86> {
let Spellings = [GNU<"force_align_arg_pointer">];
// Technically, this appertains to a FunctionDecl, but the target-specific
// code silently allows anything function-like (such as typedefs or function
// pointers), but does not apply the attribute to them.
let Documentation = [Undocumented];
}
def NoSanitize : InheritableAttr {
let Spellings = [GNU<"no_sanitize">, CXX11<"clang", "no_sanitize">];
let Args = [VariadicStringArgument<"Sanitizers">];
let Subjects = SubjectList<[Function, ObjCMethod, GlobalVar], ErrorDiag,
"ExpectedFunctionMethodOrGlobalVar">;
let Documentation = [NoSanitizeDocs];
let AdditionalMembers = [{
SanitizerMask getMask() const {
SanitizerMask Mask = 0;
for (auto SanitizerName : sanitizers()) {
SanitizerMask ParsedMask =
parseSanitizerValue(SanitizerName, /*AllowGroups=*/true);
Mask |= expandSanitizerGroups(ParsedMask);
}
return Mask;
}
}];
}
// Attributes to disable a specific sanitizer. No new sanitizers should be added
// to this list; the no_sanitize attribute should be extended instead.
def NoSanitizeSpecific : InheritableAttr {
let Spellings = [GCC<"no_address_safety_analysis">,
GCC<"no_sanitize_address">,
GCC<"no_sanitize_thread">,
GNU<"no_sanitize_memory">];
let Subjects = SubjectList<[Function, GlobalVar], ErrorDiag,
"ExpectedFunctionOrGlobalVar">;
let Documentation = [NoSanitizeAddressDocs, NoSanitizeThreadDocs,
NoSanitizeMemoryDocs];
let ASTNode = 0;
}
// C/C++ Thread safety attributes (e.g. for deadlock, data race checking)
def GuardedVar : InheritableAttr {
let Spellings = [GNU<"guarded_var">];
let Subjects = SubjectList<[Field, SharedVar], WarnDiag,
"ExpectedFieldOrGlobalVar">;
let Documentation = [Undocumented];
}
def PtGuardedVar : InheritableAttr {
let Spellings = [GNU<"pt_guarded_var">];
let Subjects = SubjectList<[Field, SharedVar], WarnDiag,
"ExpectedFieldOrGlobalVar">;
let Documentation = [Undocumented];
}
def Lockable : InheritableAttr {
let Spellings = [GNU<"lockable">];
let Subjects = SubjectList<[Record]>;
let Documentation = [Undocumented];
let ASTNode = 0; // Replaced by Capability
}
def ScopedLockable : InheritableAttr {
let Spellings = [GNU<"scoped_lockable">];
let Subjects = SubjectList<[Record]>;
let Documentation = [Undocumented];
}
def Capability : InheritableAttr {
let Spellings = [GNU<"capability">, CXX11<"clang", "capability">,
GNU<"shared_capability">,
CXX11<"clang", "shared_capability">];
let Subjects = SubjectList<[Record, TypedefName], ErrorDiag,
"ExpectedStructOrUnionOrTypedef">;
let Args = [StringArgument<"Name">];
let Accessors = [Accessor<"isShared",
[GNU<"shared_capability">,
CXX11<"clang","shared_capability">]>];
let Documentation = [Undocumented];
let AdditionalMembers = [{
bool isMutex() const { return getName().equals_lower("mutex"); }
bool isRole() const { return getName().equals_lower("role"); }
}];
}
def AssertCapability : InheritableAttr {
let Spellings = [GNU<"assert_capability">,
CXX11<"clang", "assert_capability">,
GNU<"assert_shared_capability">,
CXX11<"clang", "assert_shared_capability">];
let Subjects = SubjectList<[Function]>;
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Args = [ExprArgument<"Expr">];
let Accessors = [Accessor<"isShared",
[GNU<"assert_shared_capability">,
CXX11<"clang", "assert_shared_capability">]>];
let Documentation = [AssertCapabilityDocs];
}
def AcquireCapability : InheritableAttr {
let Spellings = [GNU<"acquire_capability">,
CXX11<"clang", "acquire_capability">,
GNU<"acquire_shared_capability">,
CXX11<"clang", "acquire_shared_capability">,
GNU<"exclusive_lock_function">,
GNU<"shared_lock_function">];
let Subjects = SubjectList<[Function]>;
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Args = [VariadicExprArgument<"Args">];
let Accessors = [Accessor<"isShared",
[GNU<"acquire_shared_capability">,
CXX11<"clang", "acquire_shared_capability">,
GNU<"shared_lock_function">]>];
let Documentation = [AcquireCapabilityDocs];
}
def TryAcquireCapability : InheritableAttr {
let Spellings = [GNU<"try_acquire_capability">,
CXX11<"clang", "try_acquire_capability">,
GNU<"try_acquire_shared_capability">,
CXX11<"clang", "try_acquire_shared_capability">];
let Subjects = SubjectList<[Function],
ErrorDiag>;
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Args = [ExprArgument<"SuccessValue">, VariadicExprArgument<"Args">];
let Accessors = [Accessor<"isShared",
[GNU<"try_acquire_shared_capability">,
CXX11<"clang", "try_acquire_shared_capability">]>];
let Documentation = [TryAcquireCapabilityDocs];
}
def ReleaseCapability : InheritableAttr {
let Spellings = [GNU<"release_capability">,
CXX11<"clang", "release_capability">,
GNU<"release_shared_capability">,
CXX11<"clang", "release_shared_capability">,
GNU<"release_generic_capability">,
CXX11<"clang", "release_generic_capability">,
GNU<"unlock_function">];
let Subjects = SubjectList<[Function]>;
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Args = [VariadicExprArgument<"Args">];
let Accessors = [Accessor<"isShared",
[GNU<"release_shared_capability">,
CXX11<"clang", "release_shared_capability">]>,
Accessor<"isGeneric",
[GNU<"release_generic_capability">,
CXX11<"clang", "release_generic_capability">,
GNU<"unlock_function">]>];
let Documentation = [ReleaseCapabilityDocs];
}
def RequiresCapability : InheritableAttr {
let Spellings = [GNU<"requires_capability">,
CXX11<"clang", "requires_capability">,
GNU<"exclusive_locks_required">,
GNU<"requires_shared_capability">,
CXX11<"clang", "requires_shared_capability">,
GNU<"shared_locks_required">];
let Args = [VariadicExprArgument<"Args">];
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Subjects = SubjectList<[Function]>;
let Accessors = [Accessor<"isShared", [GNU<"requires_shared_capability">,
GNU<"shared_locks_required">,
CXX11<"clang","requires_shared_capability">]>];
let Documentation = [Undocumented];
}
def NoThreadSafetyAnalysis : InheritableAttr {
let Spellings = [GNU<"no_thread_safety_analysis">];
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def GuardedBy : InheritableAttr {
let Spellings = [GNU<"guarded_by">];
let Args = [ExprArgument<"Arg">];
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Subjects = SubjectList<[Field, SharedVar], WarnDiag,
"ExpectedFieldOrGlobalVar">;
let Documentation = [Undocumented];
}
def PtGuardedBy : InheritableAttr {
let Spellings = [GNU<"pt_guarded_by">];
let Args = [ExprArgument<"Arg">];
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Subjects = SubjectList<[Field, SharedVar], WarnDiag,
"ExpectedFieldOrGlobalVar">;
let Documentation = [Undocumented];
}
def AcquiredAfter : InheritableAttr {
let Spellings = [GNU<"acquired_after">];
let Args = [VariadicExprArgument<"Args">];
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Subjects = SubjectList<[Field, SharedVar], WarnDiag,
"ExpectedFieldOrGlobalVar">;
let Documentation = [Undocumented];
}
def AcquiredBefore : InheritableAttr {
let Spellings = [GNU<"acquired_before">];
let Args = [VariadicExprArgument<"Args">];
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Subjects = SubjectList<[Field, SharedVar], WarnDiag,
"ExpectedFieldOrGlobalVar">;
let Documentation = [Undocumented];
}
def AssertExclusiveLock : InheritableAttr {
let Spellings = [GNU<"assert_exclusive_lock">];
let Args = [VariadicExprArgument<"Args">];
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def AssertSharedLock : InheritableAttr {
let Spellings = [GNU<"assert_shared_lock">];
let Args = [VariadicExprArgument<"Args">];
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
// The first argument is an integer or boolean value specifying the return value
// of a successful lock acquisition.
def ExclusiveTrylockFunction : InheritableAttr {
let Spellings = [GNU<"exclusive_trylock_function">];
let Args = [ExprArgument<"SuccessValue">, VariadicExprArgument<"Args">];
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
// The first argument is an integer or boolean value specifying the return value
// of a successful lock acquisition.
def SharedTrylockFunction : InheritableAttr {
let Spellings = [GNU<"shared_trylock_function">];
let Args = [ExprArgument<"SuccessValue">, VariadicExprArgument<"Args">];
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def LockReturned : InheritableAttr {
let Spellings = [GNU<"lock_returned">];
let Args = [ExprArgument<"Arg">];
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
def LocksExcluded : InheritableAttr {
let Spellings = [GNU<"locks_excluded">];
let Args = [VariadicExprArgument<"Args">];
let LateParsed = 1;
let TemplateDependent = 1;
let ParseArgumentsAsUnevaluated = 1;
let DuplicatesAllowedWhileMerging = 1;
let Subjects = SubjectList<[Function]>;
let Documentation = [Undocumented];
}
// C/C++ consumed attributes.
def Consumable : InheritableAttr {
let Spellings = [GNU<"consumable">];
let Subjects = SubjectList<[CXXRecord]>;
let Args = [EnumArgument<"DefaultState", "ConsumedState",
["unknown", "consumed", "unconsumed"],
["Unknown", "Consumed", "Unconsumed"]>];
let Documentation = [ConsumableDocs];
}
def ConsumableAutoCast : InheritableAttr {
let Spellings = [GNU<"consumable_auto_cast_state">];
let Subjects = SubjectList<[CXXRecord]>;
let Documentation = [Undocumented];
}
def ConsumableSetOnRead : InheritableAttr {
let Spellings = [GNU<"consumable_set_state_on_read">];
let Subjects = SubjectList<[CXXRecord]>;
let Documentation = [Undocumented];
}
def CallableWhen : InheritableAttr {
let Spellings = [GNU<"callable_when">];
let Subjects = SubjectList<[CXXMethod]>;
let Args = [VariadicEnumArgument<"CallableStates", "ConsumedState",
["unknown", "consumed", "unconsumed"],
["Unknown", "Consumed", "Unconsumed"]>];
let Documentation = [CallableWhenDocs];
}
def ParamTypestate : InheritableAttr {
let Spellings = [GNU<"param_typestate">];
let Subjects = SubjectList<[ParmVar]>;
let Args = [EnumArgument<"ParamState", "ConsumedState",
["unknown", "consumed", "unconsumed"],
["Unknown", "Consumed", "Unconsumed"]>];
let Documentation = [ParamTypestateDocs];
}
def ReturnTypestate : InheritableAttr {
let Spellings = [GNU<"return_typestate">];
let Subjects = SubjectList<[Function, ParmVar]>;
let Args = [EnumArgument<"State", "ConsumedState",
["unknown", "consumed", "unconsumed"],
["Unknown", "Consumed", "Unconsumed"]>];
let Documentation = [ReturnTypestateDocs];
}
def SetTypestate : InheritableAttr {
let Spellings = [GNU<"set_typestate">];
let Subjects = SubjectList<[CXXMethod]>;
let Args = [EnumArgument<"NewState", "ConsumedState",
["unknown", "consumed", "unconsumed"],
["Unknown", "Consumed", "Unconsumed"]>];
let Documentation = [SetTypestateDocs];
}
def TestTypestate : InheritableAttr {
let Spellings = [GNU<"test_typestate">];
let Subjects = SubjectList<[CXXMethod]>;
let Args = [EnumArgument<"TestState", "ConsumedState",
["consumed", "unconsumed"],
["Consumed", "Unconsumed"]>];
let Documentation = [TestTypestateDocs];
}
// Type safety attributes for `void *' pointers and type tags.
def ArgumentWithTypeTag : InheritableAttr {
let Spellings = [GNU<"argument_with_type_tag">,
GNU<"pointer_with_type_tag">];
let Args = [IdentifierArgument<"ArgumentKind">,
UnsignedArgument<"ArgumentIdx">,
UnsignedArgument<"TypeTagIdx">,
BoolArgument<"IsPointer">];
let HasCustomParsing = 1;
let Documentation = [ArgumentWithTypeTagDocs, PointerWithTypeTagDocs];
}
def TypeTagForDatatype : InheritableAttr {
let Spellings = [GNU<"type_tag_for_datatype">];
let Args = [IdentifierArgument<"ArgumentKind">,
TypeArgument<"MatchingCType">,
BoolArgument<"LayoutCompatible">,
BoolArgument<"MustBeNull">];
// let Subjects = SubjectList<[Var], ErrorDiag>;
let HasCustomParsing = 1;
let Documentation = [TypeTagForDatatypeDocs];
}
// Microsoft-related attributes
def MSNoVTable : InheritableAttr, TargetSpecificAttr<TargetMicrosoftCXXABI> {
let Spellings = [Declspec<"novtable">];
let Subjects = SubjectList<[CXXRecord]>;
let Documentation = [MSNoVTableDocs];
}
def : IgnoredAttr {
let Spellings = [Declspec<"property">];
}
def MSStruct : InheritableAttr {
let Spellings = [GCC<"ms_struct">];
let Subjects = SubjectList<[Record]>;
let Documentation = [Undocumented];
}
def DLLExport : InheritableAttr, TargetSpecificAttr<TargetWindows> {
let Spellings = [Declspec<"dllexport">, GCC<"dllexport">];
let Subjects = SubjectList<[Function, Var, CXXRecord, ObjCInterface]>;
let Documentation = [DLLExportDocs];
}
def DLLImport : InheritableAttr, TargetSpecificAttr<TargetWindows> {
let Spellings = [Declspec<"dllimport">, GCC<"dllimport">];
let Subjects = SubjectList<[Function, Var, CXXRecord, ObjCInterface]>;
let Documentation = [DLLImportDocs];
}
def SelectAny : InheritableAttr {
let Spellings = [Declspec<"selectany">];
let LangOpts = [MicrosoftExt];
let Documentation = [Undocumented];
}
def Thread : Attr {
let Spellings = [Declspec<"thread">];
let LangOpts = [MicrosoftExt];
let Documentation = [ThreadDocs];
let Subjects = SubjectList<[Var]>;
}
def Win64 : IgnoredAttr {
let Spellings = [Keyword<"__w64">];
let LangOpts = [MicrosoftExt];
}
def Ptr32 : TypeAttr {
let Spellings = [Keyword<"__ptr32">];
let Documentation = [Undocumented];
}
def Ptr64 : TypeAttr {
let Spellings = [Keyword<"__ptr64">];
let Documentation = [Undocumented];
}
def SPtr : TypeAttr {
let Spellings = [Keyword<"__sptr">];
let Documentation = [Undocumented];
}
def UPtr : TypeAttr {
let Spellings = [Keyword<"__uptr">];
let Documentation = [Undocumented];
}
def MSInheritance : InheritableAttr {
let LangOpts = [MicrosoftExt];
let Args = [DefaultBoolArgument<"BestCase", 1>];
let Spellings = [Keyword<"__single_inheritance">,
Keyword<"__multiple_inheritance">,
Keyword<"__virtual_inheritance">,
Keyword<"__unspecified_inheritance">];
let AdditionalMembers = [{
static bool hasVBPtrOffsetField(Spelling Inheritance) {
return Inheritance == Keyword_unspecified_inheritance;
}
// Only member pointers to functions need a this adjustment, since it can be
// combined with the field offset for data pointers.
static bool hasNVOffsetField(bool IsMemberFunction, Spelling Inheritance) {
return IsMemberFunction && Inheritance >= Keyword_multiple_inheritance;
}
static bool hasVBTableOffsetField(Spelling Inheritance) {
return Inheritance >= Keyword_virtual_inheritance;
}
static bool hasOnlyOneField(bool IsMemberFunction,