class ObjCIndirectCopyRestoreExpr

Declaration

class ObjCIndirectCopyRestoreExpr : public Expr { /* full declaration omitted */ };

Description

ObjCIndirectCopyRestoreExpr - Represents the passing of a function argument by indirect copy-restore in ARC. This is used to support passing indirect arguments with the wrong lifetime, e.g. when passing the address of a __strong local variable to an 'out' parameter. This expression kind is only valid in an "argument" position to some sort of call expression. The parameter must have type 'pointer to T', and the argument must have type 'pointer to U', where T and U agree except possibly in qualification. If the argument value is null, then a null pointer is passed; otherwise it points to an object A, and: 1. A temporary object B of type T is initialized, either by zero-initialization (used when initializing an 'out' parameter) or copy-initialization (used when initializing an 'inout' parameter). 2. The address of the temporary is passed to the function. 3. If the call completes normally, A is move-assigned from B. 4. Finally, A is destroyed immediately. Currently 'T' must be a retainable object lifetime and must be __autoreleasing; this qualifier is ignored when initializing the value.

Declared at: clang/include/clang/AST/ExprObjC.h:1566

Inherits from: Expr

Member Variables

private clang::Stmt* Operand

Inherited from Stmt:

protected

Method Overview

• private ObjCIndirectCopyRestoreExpr(clang::Stmt::EmptyShell Empty)
• public ObjCIndirectCopyRestoreExpr(clang::Expr * operand, clang::QualType type, bool shouldCopy)
• public clang::Stmt::child_range children()
• public clang::Stmt::const_child_range children() const
• public static bool classof(const clang::Stmt * s)
• public clang::SourceLocation getBeginLoc() const
• public clang::SourceLocation getEndLoc() const
• public clang::SourceLocation getExprLoc() const
• public clang::Expr * getSubExpr()
• public const clang::Expr * getSubExpr() const
• private void setShouldCopy(bool shouldCopy)
• public bool shouldCopy() 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

¶ObjCIndirectCopyRestoreExpr(
    clang::Stmt::EmptyShell Empty)

Declared at: clang/include/clang/AST/ExprObjC.h:1574

Parameters

clang::Stmt::EmptyShell Empty

¶ObjCIndirectCopyRestoreExpr(clang::Expr* operand,
                            clang::QualType type,
                            bool shouldCopy)

Declared at: clang/include/clang/AST/ExprObjC.h:1582

Parameters

clang::Expr* operand

clang::QualType type

bool shouldCopy

¶clang::Stmt::child_range children()

Declared at: clang/include/clang/AST/ExprObjC.h:1596

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

Declared at: clang/include/clang/AST/ExprObjC.h:1598

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

Declared at: clang/include/clang/AST/ExprObjC.h:1614

Parameters

const clang::Stmt* s

¶clang::SourceLocation getBeginLoc() const

Declared at: clang/include/clang/AST/ExprObjC.h:1603

¶clang::SourceLocation getEndLoc() const

Declared at: clang/include/clang/AST/ExprObjC.h:1606

¶clang::SourceLocation getExprLoc() const

Declared at: clang/include/clang/AST/ExprObjC.h:1610

¶clang::Expr* getSubExpr()

Declared at: clang/include/clang/AST/ExprObjC.h:1589

¶const clang::Expr* getSubExpr() const

Declared at: clang/include/clang/AST/ExprObjC.h:1590

¶void setShouldCopy(bool shouldCopy)

Declared at: clang/include/clang/AST/ExprObjC.h:1577

Parameters

bool shouldCopy

¶bool shouldCopy() const

Description

shouldCopy - True if we should do the 'copy' part of the copy-restore. If false, the temporary will be zero-initialized.

Declared at: clang/include/clang/AST/ExprObjC.h:1594