class SizeOfPackExpr

Declaration

class SizeOfPackExpr : public Expr, private TrailingObjects { /* full declaration omitted */ };

Description

Represents an expression that computes the length of a parameter pack.

Declared at: clang/include/clang/AST/ExprCXX.h:4144

Inherits from: Expr, TrailingObjects

Member Variables

private clang::SourceLocation OperatorLoc

The location of the \c sizeof keyword.

private clang::SourceLocation PackLoc

The location of the name of the parameter pack.

private clang::SourceLocation RParenLoc

The location of the closing parenthesis.

private unsigned int Length

After partial substitution into a sizeof...(X) expression (for instance, within an alias template or during function template argument deduction), we store a trailing array of partially-substituted TemplateArguments, and this is the length of that array.

private clang::NamedDecl* Pack = nullptr

The parameter pack.

Inherited from Stmt:

protected

Method Overview

• public static clang::SizeOfPackExpr * Create(clang::ASTContext & Context, clang::SourceLocation OperatorLoc, clang::NamedDecl * Pack, clang::SourceLocation PackLoc, clang::SourceLocation RParenLoc, Optional<unsigned int> Length = None, ArrayRef<clang::TemplateArgument> PartialArgs = None)
• public static clang::SizeOfPackExpr * CreateDeserialized(clang::ASTContext & Context, unsigned int NumPartialArgs)
• private SizeOfPackExpr(clang::QualType SizeType, clang::SourceLocation OperatorLoc, clang::NamedDecl * Pack, clang::SourceLocation PackLoc, clang::SourceLocation RParenLoc, Optional<unsigned int> Length, ArrayRef<clang::TemplateArgument> PartialArgs)
• private SizeOfPackExpr(clang::Stmt::EmptyShell Empty, unsigned int NumPartialArgs)
• public clang::Stmt::child_range children()
• public clang::Stmt::const_child_range children() const
• public static bool classof(const clang::Stmt * T)
• public clang::SourceLocation getBeginLoc() const
• public clang::SourceLocation getEndLoc() const
• public clang::SourceLocation getOperatorLoc() const
• public clang::NamedDecl * getPack() const
• public unsigned int getPackLength() const
• public clang::SourceLocation getPackLoc() const
• public ArrayRef<clang::TemplateArgument> getPartialArguments() const
• public clang::SourceLocation getRParenLoc() const
• public bool isPartiallySubstituted() const

Inherited from Expr:

• public Classify
• public ClassifyLValue
• public ClassifyModifiable
• public EvaluateAsBooleanCondition
• public EvaluateAsConstantExpr
• public EvaluateAsFixedPoint
• public EvaluateAsFloat
• public EvaluateAsInitializer
• public EvaluateAsInt
• public EvaluateAsLValue
• public EvaluateAsRValue
• public EvaluateForOverflow
• public EvaluateKnownConstInt
• public EvaluateKnownConstIntCheckOverflow
• public EvaluateWithSubstitution
• public HasSideEffects
• public IgnoreCasts
• public IgnoreCasts
• public IgnoreConversionOperatorSingleStep
• public IgnoreConversionOperatorSingleStep
• public IgnoreImpCasts
• public IgnoreImpCasts
• public IgnoreImplicit
• public IgnoreImplicit
• public IgnoreImplicitAsWritten
• public IgnoreImplicitAsWritten
• public IgnoreParenBaseCasts
• public IgnoreParenBaseCasts
• public IgnoreParenCasts
• public IgnoreParenCasts
• public IgnoreParenImpCasts
• public IgnoreParenImpCasts
• public IgnoreParenLValueCasts
• public IgnoreParenLValueCasts
• public IgnoreParenNoopCasts
• public IgnoreParenNoopCasts
• public IgnoreParens
• public IgnoreParens
• public IgnoreUnlessSpelledInSource
• public IgnoreUnlessSpelledInSource
• public classof
• public containsErrors
• public containsUnexpandedParameterPack
• public findBoundMemberType
• public getAsBuiltinConstantDeclRef
• public getBestDynamicClassType
• public getBestDynamicClassTypeExpr
• public getDependence
• public getExprLoc
• public getFPFeaturesInEffect
• public getIntegerConstantExpr
• public getObjCProperty
• public getObjectKind
• public getReferencedDeclOfCallee
• public getReferencedDeclOfCallee
• public getSourceBitField
• public getSourceBitField
• public getType
• public getValueKind
• public getValueKindForType
• public hasAnyTypeDependentArguments
• public hasNonTrivialCall
• public hasPlaceholderType
• public hasPlaceholderType
• public isBoundMemberFunction
• public isCXX11ConstantExpr
• public isCXX98IntegralConstantExpr
• public isConstantInitializer
• public isDefaultArgument
• public isEvaluatable
• public isGLValue
• public isImplicitCXXThis
• public isInstantiationDependent
• public isIntegerConstantExpr
• public isKnownToHaveBooleanValue
• public isLValue
• public isModifiableLvalue
• public isNullPointerConstant
• public isOBJCGCCandidate
• public isObjCSelfExpr
• public isOrdinaryOrBitFieldObject
• public isPRValue
• public isPotentialConstantExpr
• public isPotentialConstantExprUnevaluated
• public isReadIfDiscardedInCPlusPlus11
• public isSameComparisonOperand
• public isTemporaryObject
• public isTypeDependent
• public isUnusedResultAWarning
• public isValueDependent
• public isXValue
• public refersToBitField
• public refersToGlobalRegisterVar
• public refersToMatrixElement
• public refersToVectorElement
• protected setDependence
• public setObjectKind
• public setType
• public setValueKind
• public skipRValueSubobjectAdjustments
• public skipRValueSubobjectAdjustments
• public tryEvaluateObjectSize
• public tryEvaluateStrLen

Inherited from ValueStmt:

• public classof
• public getExprStmt
• public getExprStmt

Inherited from Stmt:

• public EnableStatistics
• public IgnoreContainers
• public IgnoreContainers
• public PrintStats
• public ProcessODRHash
• public Profile
• public addStmtClass
• public child_begin
• public child_begin
• public child_end
• public child_end
• public children
• public children
• public determineLikelihoodConflict
• public dump
• public dump
• public dumpColor
• public dumpPretty
• public getBeginLoc
• public getEndLoc
• public getID
• public getLikelihood
• public getLikelihood
• public getLikelihood
• public getLikelihoodAttr
• public getSourceRange
• public getStmtClass
• public getStmtClassName
• public printJson
• public printPretty
• public printPrettyControlled
• public stripLabelLikeStatements
• public stripLabelLikeStatements
• public viewAST

Methods

¶static clang::SizeOfPackExpr* Create(
    clang::ASTContext& Context,
    clang::SourceLocation OperatorLoc,
    clang::NamedDecl* Pack,
    clang::SourceLocation PackLoc,
    clang::SourceLocation RParenLoc,
    Optional<unsigned int> Length = None,
    ArrayRef<clang::TemplateArgument>
        PartialArgs = None)

Declared at: clang/include/clang/AST/ExprCXX.h:4197

Parameters

clang::ASTContext& Context

clang::SourceLocation OperatorLoc

clang::NamedDecl* Pack

clang::SourceLocation PackLoc

clang::SourceLocation RParenLoc

Optional<unsigned int> Length = None

ArrayRef<clang::TemplateArgument> PartialArgs = None

¶static clang::SizeOfPackExpr* CreateDeserialized(
    clang::ASTContext& Context,
    unsigned int NumPartialArgs)

Declared at: clang/include/clang/AST/ExprCXX.h:4202

Parameters

clang::ASTContext& Context

unsigned int NumPartialArgs

¶SizeOfPackExpr(
    clang::QualType SizeType,
    clang::SourceLocation OperatorLoc,
    clang::NamedDecl* Pack,
    clang::SourceLocation PackLoc,
    clang::SourceLocation RParenLoc,
    Optional<unsigned int> Length,
    ArrayRef<clang::TemplateArgument> PartialArgs)

Description

Create an expression that computes the length of the given parameter pack.

Declared at: clang/include/clang/AST/ExprCXX.h:4177

Parameters

clang::QualType SizeType

clang::SourceLocation OperatorLoc

clang::NamedDecl* Pack

clang::SourceLocation PackLoc

clang::SourceLocation RParenLoc

Optional<unsigned int> Length

ArrayRef<clang::TemplateArgument> PartialArgs

¶SizeOfPackExpr(clang::Stmt::EmptyShell Empty,
               unsigned int NumPartialArgs)

Description

Create an empty expression.

Declared at: clang/include/clang/AST/ExprCXX.h:4193

Parameters

clang::Stmt::EmptyShell Empty

unsigned int NumPartialArgs

¶clang::Stmt::child_range children()

Declared at: clang/include/clang/AST/ExprCXX.h:4251

¶clang::Stmt::const_child_range children() const

Declared at: clang/include/clang/AST/ExprCXX.h:4255

¶static bool classof(const clang::Stmt* T)

Declared at: clang/include/clang/AST/ExprCXX.h:4246

Parameters

const clang::Stmt* T

¶clang::SourceLocation getBeginLoc() const

Declared at: clang/include/clang/AST/ExprCXX.h:4243

¶clang::SourceLocation getEndLoc() const

Declared at: clang/include/clang/AST/ExprCXX.h:4244

¶clang::SourceLocation getOperatorLoc() const

Description

Determine the location of the 'sizeof' keyword.

Declared at: clang/include/clang/AST/ExprCXX.h:4206

¶clang::NamedDecl* getPack() const

Description

Retrieve the parameter pack.

Declared at: clang/include/clang/AST/ExprCXX.h:4215

¶unsigned int getPackLength() const

Description

Retrieve the length of the parameter pack. This routine may only be invoked when the expression is not value-dependent.

Declared at: clang/include/clang/AST/ExprCXX.h:4221

¶clang::SourceLocation getPackLoc() const

Description

Determine the location of the parameter pack.

Declared at: clang/include/clang/AST/ExprCXX.h:4209

¶ArrayRef<clang::TemplateArgument>
getPartialArguments() const

Description

Get

Declared at: clang/include/clang/AST/ExprCXX.h:4237

¶clang::SourceLocation getRParenLoc() const

Description

Determine the location of the right parenthesis.

Declared at: clang/include/clang/AST/ExprCXX.h:4212

¶bool isPartiallySubstituted() const

Description

Determine whether this represents a partially-substituted sizeof... expression, such as is produced for: template <typename ...Ts> using X = int[sizeof...(Ts)]; template <typename ...Us> void f(X <Us ..., 1, 2, 3, Us...>);

Declared at: clang/include/clang/AST/ExprCXX.h:4232