clang  3.7.0
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clang::CXXDependentScopeMemberExpr Class Reference

Represents a C++ member access expression where the actual member referenced could not be resolved because the base expression or the member name was dependent. More...

#include <ExprCXX.h>

Inheritance diagram for clang::CXXDependentScopeMemberExpr:
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Collaboration diagram for clang::CXXDependentScopeMemberExpr:
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Public Member Functions

 CXXDependentScopeMemberExpr (const ASTContext &C, Expr *Base, QualType BaseType, bool IsArrow, SourceLocation OperatorLoc, NestedNameSpecifierLoc QualifierLoc, NamedDecl *FirstQualifierFoundInScope, DeclarationNameInfo MemberNameInfo)
 
bool isImplicitAccess () const
 True if this is an implicit access, i.e. one in which the member being accessed was not written in the source. The source location of the operator is invalid in this case. More...
 
ExprgetBase () const
 Retrieve the base object of this member expressions, e.g., the x in x.m. More...
 
QualType getBaseType () const
 
bool isArrow () const
 Determine whether this member expression used the '->' operator; otherwise, it used the '.' operator. More...
 
SourceLocation getOperatorLoc () const
 Retrieve the location of the '->' or '.' operator. More...
 
NestedNameSpecifiergetQualifier () const
 Retrieve the nested-name-specifier that qualifies the member name. More...
 
NestedNameSpecifierLoc getQualifierLoc () const
 Retrieve the nested-name-specifier that qualifies the member name, with source location information. More...
 
NamedDeclgetFirstQualifierFoundInScope () const
 Retrieve the first part of the nested-name-specifier that was found in the scope of the member access expression when the member access was initially parsed. More...
 
const DeclarationNameInfogetMemberNameInfo () const
 Retrieve the name of the member that this expression refers to. More...
 
DeclarationName getMember () const
 Retrieve the name of the member that this expression refers to. More...
 
SourceLocation getMemberLoc () const
 
SourceLocation getTemplateKeywordLoc () const
 Retrieve the location of the template keyword preceding the member name, if any. More...
 
SourceLocation getLAngleLoc () const
 Retrieve the location of the left angle bracket starting the explicit template argument list following the member name, if any. More...
 
SourceLocation getRAngleLoc () const
 Retrieve the location of the right angle bracket ending the explicit template argument list following the member name, if any. More...
 
bool hasTemplateKeyword () const
 Determines whether the member name was preceded by the template keyword. More...
 
bool hasExplicitTemplateArgs () const
 Determines whether this member expression actually had a C++ template argument list explicitly specified, e.g., x.f<int>. More...
 
ASTTemplateArgumentListInfogetExplicitTemplateArgs ()
 Retrieve the explicit template argument list that followed the member template name, if any. More...
 
const ASTTemplateArgumentListInfogetExplicitTemplateArgs () const
 Retrieve the explicit template argument list that followed the member template name, if any. More...
 
const ASTTemplateArgumentListInfogetOptionalExplicitTemplateArgs () const
 Retrieves the optional explicit template arguments. More...
 
void copyTemplateArgumentsInto (TemplateArgumentListInfo &List) const
 Copies the template arguments (if present) into the given structure. More...
 
void initializeTemplateArgumentsFrom (const TemplateArgumentListInfo &List)
 Initializes the template arguments using the given structure. More...
 
const TemplateArgumentLocgetTemplateArgs () const
 Retrieve the template arguments provided as part of this template-id. More...
 
unsigned getNumTemplateArgs () const
 Retrieve the number of template arguments provided as part of this template-id. More...
 
SourceLocation getLocStart () const LLVM_READONLY
 
SourceLocation getLocEnd () const LLVM_READONLY
 
child_range children ()
 
- Public Member Functions inherited from clang::Expr
QualType getType () const
 
void setType (QualType t)
 
bool isValueDependent () const
 
void setValueDependent (bool VD)
 Set whether this expression is value-dependent or not. More...
 
bool isTypeDependent () const
 
void setTypeDependent (bool TD)
 Set whether this expression is type-dependent or not. More...
 
bool isInstantiationDependent () const
 Whether this expression is instantiation-dependent, meaning that it depends in some way on a template parameter, even if neither its type nor (constant) value can change due to the template instantiation. More...
 
void setInstantiationDependent (bool ID)
 Set whether this expression is instantiation-dependent or not. More...
 
bool containsUnexpandedParameterPack () const
 Whether this expression contains an unexpanded parameter pack (for C++11 variadic templates). More...
 
void setContainsUnexpandedParameterPack (bool PP=true)
 Set the bit that describes whether this expression contains an unexpanded parameter pack. More...
 
SourceLocation getExprLoc () const LLVM_READONLY
 
bool isUnusedResultAWarning (const Expr *&WarnExpr, SourceLocation &Loc, SourceRange &R1, SourceRange &R2, ASTContext &Ctx) const
 
bool isLValue () const
 
bool isRValue () const
 
bool isXValue () const
 
bool isGLValue () const
 
LValueClassification ClassifyLValue (ASTContext &Ctx) const
 Reasons why an expression might not be an l-value. More...
 
isModifiableLvalueResult isModifiableLvalue (ASTContext &Ctx, SourceLocation *Loc=nullptr) const
 
Classification Classify (ASTContext &Ctx) const
 Classify - Classify this expression according to the C++11 expression taxonomy. More...
 
Classification ClassifyModifiable (ASTContext &Ctx, SourceLocation &Loc) const
 ClassifyModifiable - Classify this expression according to the C++11 expression taxonomy, and see if it is valid on the left side of an assignment. More...
 
ExprValueKind getValueKind () const
 getValueKind - The value kind that this expression produces. More...
 
ExprObjectKind getObjectKind () const
 
bool isOrdinaryOrBitFieldObject () const
 
void setValueKind (ExprValueKind Cat)
 setValueKind - Set the value kind produced by this expression. More...
 
void setObjectKind (ExprObjectKind Cat)
 setObjectKind - Set the object kind produced by this expression. More...
 
bool refersToBitField () const
 Returns true if this expression is a gl-value that potentially refers to a bit-field. More...
 
FieldDeclgetSourceBitField ()
 If this expression refers to a bit-field, retrieve the declaration of that bit-field. More...
 
const FieldDeclgetSourceBitField () const
 
const ObjCPropertyRefExprgetObjCProperty () const
 If this expression is an l-value for an Objective C property, find the underlying property reference expression. More...
 
bool isObjCSelfExpr () const
 Check if this expression is the ObjC 'self' implicit parameter. More...
 
bool refersToVectorElement () const
 Returns whether this expression refers to a vector element. More...
 
bool hasPlaceholderType () const
 Returns whether this expression has a placeholder type. More...
 
bool hasPlaceholderType (BuiltinType::Kind K) const
 Returns whether this expression has a specific placeholder type. More...
 
bool isKnownToHaveBooleanValue () const
 
bool isIntegerConstantExpr (llvm::APSInt &Result, const ASTContext &Ctx, SourceLocation *Loc=nullptr, bool isEvaluated=true) const
 
bool isIntegerConstantExpr (const ASTContext &Ctx, SourceLocation *Loc=nullptr) const
 
bool isCXX98IntegralConstantExpr (const ASTContext &Ctx) const
 
bool isCXX11ConstantExpr (const ASTContext &Ctx, APValue *Result=nullptr, SourceLocation *Loc=nullptr) const
 
bool isConstantInitializer (ASTContext &Ctx, bool ForRef, const Expr **Culprit=nullptr) const
 
bool EvaluateAsRValue (EvalResult &Result, const ASTContext &Ctx) const
 
bool EvaluateAsBooleanCondition (bool &Result, const ASTContext &Ctx) const
 
bool EvaluateAsInt (llvm::APSInt &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const
 
bool isEvaluatable (const ASTContext &Ctx) const
 
bool HasSideEffects (const ASTContext &Ctx, bool IncludePossibleEffects=true) const
 
bool hasNonTrivialCall (const ASTContext &Ctx) const
 Determine whether this expression involves a call to any function that is not trivial. More...
 
llvm::APSInt EvaluateKnownConstInt (const ASTContext &Ctx, SmallVectorImpl< PartialDiagnosticAt > *Diag=nullptr) const
 
void EvaluateForOverflow (const ASTContext &Ctx) const
 
bool EvaluateAsLValue (EvalResult &Result, const ASTContext &Ctx) const
 
bool EvaluateAsInitializer (APValue &Result, const ASTContext &Ctx, const VarDecl *VD, SmallVectorImpl< PartialDiagnosticAt > &Notes) const
 
bool EvaluateWithSubstitution (APValue &Value, ASTContext &Ctx, const FunctionDecl *Callee, ArrayRef< const Expr * > Args) const
 
NullPointerConstantKind isNullPointerConstant (ASTContext &Ctx, NullPointerConstantValueDependence NPC) const
 
bool isOBJCGCCandidate (ASTContext &Ctx) const
 
bool isBoundMemberFunction (ASTContext &Ctx) const
 Returns true if this expression is a bound member function. More...
 
ExprIgnoreImpCasts () LLVM_READONLY
 
ExprIgnoreImplicit () LLVM_READONLY
 
const ExprIgnoreImplicit () const LLVM_READONLY
 
ExprIgnoreParens () LLVM_READONLY
 
ExprIgnoreParenCasts () LLVM_READONLY
 
ExprIgnoreCasts () LLVM_READONLY
 Ignore casts. Strip off any CastExprs, returning their operand. More...
 
ExprIgnoreParenImpCasts () LLVM_READONLY
 
ExprIgnoreConversionOperator () LLVM_READONLY
 
const ExprIgnoreConversionOperator () const LLVM_READONLY
 
const ExprIgnoreParenImpCasts () const LLVM_READONLY
 
ExprIgnoreParenLValueCasts () LLVM_READONLY
 
const ExprIgnoreParenLValueCasts () const LLVM_READONLY
 
ExprIgnoreParenNoopCasts (ASTContext &Ctx) LLVM_READONLY
 
ExprignoreParenBaseCasts () LLVM_READONLY
 Ignore parentheses and derived-to-base casts. More...
 
const ExprignoreParenBaseCasts () const LLVM_READONLY
 
bool isDefaultArgument () const
 Determine whether this expression is a default function argument. More...
 
bool isTemporaryObject (ASTContext &Ctx, const CXXRecordDecl *TempTy) const
 Determine whether the result of this expression is a temporary object of the given class type. More...
 
bool isImplicitCXXThis () const
 Whether this expression is an implicit reference to 'this' in C++. More...
 
const ExprIgnoreImpCasts () const LLVM_READONLY
 
const ExprIgnoreParens () const LLVM_READONLY
 
const ExprIgnoreParenCasts () const LLVM_READONLY
 
const ExprIgnoreCasts () const LLVM_READONLY
 Strip off casts, but keep parentheses. More...
 
const ExprIgnoreParenNoopCasts (ASTContext &Ctx) const LLVM_READONLY
 
const CXXRecordDeclgetBestDynamicClassType () const
 For an expression of class type or pointer to class type, return the most derived class decl the expression is known to refer to. More...
 
const ExprskipRValueSubobjectAdjustments (SmallVectorImpl< const Expr * > &CommaLHS, SmallVectorImpl< SubobjectAdjustment > &Adjustments) const
 

Static Public Member Functions

static
CXXDependentScopeMemberExpr
Create (const ASTContext &C, Expr *Base, QualType BaseType, bool IsArrow, SourceLocation OperatorLoc, NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc, NamedDecl *FirstQualifierFoundInScope, DeclarationNameInfo MemberNameInfo, const TemplateArgumentListInfo *TemplateArgs)
 
static
CXXDependentScopeMemberExpr
CreateEmpty (const ASTContext &C, bool HasTemplateKWAndArgsInfo, unsigned NumTemplateArgs)
 
static bool classof (const Stmt *T)
 
- Static Public Member Functions inherited from clang::Expr
static ExprValueKind getValueKindForType (QualType T)
 
static bool isPotentialConstantExpr (const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags)
 
static bool isPotentialConstantExprUnevaluated (Expr *E, const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags)
 
static QualType findBoundMemberType (const Expr *expr)
 Given an expression of bound-member type, find the type of the member. Returns null if this is an overloaded bound member expression. More...
 
static bool hasAnyTypeDependentArguments (ArrayRef< Expr * > Exprs)
 
static bool classof (const Stmt *T)
 

Friends

class ASTStmtReader
 
class ASTStmtWriter
 

Additional Inherited Members

- Public Types inherited from clang::Expr
enum  LValueClassification {
  LV_Valid, LV_NotObjectType, LV_IncompleteVoidType, LV_DuplicateVectorComponents,
  LV_InvalidExpression, LV_InvalidMessageExpression, LV_MemberFunction, LV_SubObjCPropertySetting,
  LV_ClassTemporary, LV_ArrayTemporary
}
 
enum  isModifiableLvalueResult {
  MLV_Valid, MLV_NotObjectType, MLV_IncompleteVoidType, MLV_DuplicateVectorComponents,
  MLV_InvalidExpression, MLV_LValueCast, MLV_IncompleteType, MLV_ConstQualified,
  MLV_ConstAddrSpace, MLV_ArrayType, MLV_NoSetterProperty, MLV_MemberFunction,
  MLV_SubObjCPropertySetting, MLV_InvalidMessageExpression, MLV_ClassTemporary, MLV_ArrayTemporary
}
 
enum  SideEffectsKind { SE_NoSideEffects, SE_AllowSideEffects }
 
enum  NullPointerConstantKind {
  NPCK_NotNull = 0, NPCK_ZeroExpression, NPCK_ZeroLiteral, NPCK_CXX11_nullptr,
  NPCK_GNUNull
}
 Enumeration used to describe the kind of Null pointer constant returned from isNullPointerConstant(). More...
 
enum  NullPointerConstantValueDependence { NPC_NeverValueDependent = 0, NPC_ValueDependentIsNull, NPC_ValueDependentIsNotNull }
 Enumeration used to describe how isNullPointerConstant() should cope with value-dependent expressions. More...
 
- Protected Member Functions inherited from clang::Expr
 Expr (StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, bool TD, bool VD, bool ID, bool ContainsUnexpandedParameterPack)
 
 Expr (StmtClass SC, EmptyShell)
 Construct an empty expression. More...
 

Detailed Description

Represents a C++ member access expression where the actual member referenced could not be resolved because the base expression or the member name was dependent.

Like UnresolvedMemberExprs, these can be either implicit or explicit accesses. It is only possible to get one of these with an implicit access if a qualifier is provided.

Definition at line 2954 of file ExprCXX.h.

Constructor & Destructor Documentation

CXXDependentScopeMemberExpr::CXXDependentScopeMemberExpr ( const ASTContext C,
Expr Base,
QualType  BaseType,
bool  IsArrow,
SourceLocation  OperatorLoc,
NestedNameSpecifierLoc  QualifierLoc,
NamedDecl FirstQualifierFoundInScope,
DeclarationNameInfo  MemberNameInfo 
)

Definition at line 1231 of file ExprCXX.cpp.

Member Function Documentation

child_range clang::CXXDependentScopeMemberExpr::children ( )
inline

Definition at line 3185 of file ExprCXX.h.

References isImplicitAccess().

static bool clang::CXXDependentScopeMemberExpr::classof ( const Stmt T)
inlinestatic

Definition at line 3180 of file ExprCXX.h.

void clang::CXXDependentScopeMemberExpr::copyTemplateArgumentsInto ( TemplateArgumentListInfo List) const
inline

Copies the template arguments (if present) into the given structure.

Definition at line 3145 of file ExprCXX.h.

References clang::ASTTemplateArgumentListInfo::copyInto(), and getExplicitTemplateArgs().

CXXDependentScopeMemberExpr * CXXDependentScopeMemberExpr::Create ( const ASTContext C,
Expr Base,
QualType  BaseType,
bool  IsArrow,
SourceLocation  OperatorLoc,
NestedNameSpecifierLoc  QualifierLoc,
SourceLocation  TemplateKWLoc,
NamedDecl FirstQualifierFoundInScope,
DeclarationNameInfo  MemberNameInfo,
const TemplateArgumentListInfo TemplateArgs 
)
static
CXXDependentScopeMemberExpr * CXXDependentScopeMemberExpr::CreateEmpty ( const ASTContext C,
bool  HasTemplateKWAndArgsInfo,
unsigned  NumTemplateArgs 
)
static
Expr* clang::CXXDependentScopeMemberExpr::getBase ( ) const
inline

Retrieve the base object of this member expressions, e.g., the x in x.m.

Definition at line 3038 of file ExprCXX.h.

References isImplicitAccess().

QualType clang::CXXDependentScopeMemberExpr::getBaseType ( ) const
inline

Definition at line 3043 of file ExprCXX.h.

ASTTemplateArgumentListInfo& clang::CXXDependentScopeMemberExpr::getExplicitTemplateArgs ( )
inline

Retrieve the explicit template argument list that followed the member template name, if any.

Definition at line 3122 of file ExprCXX.h.

References hasExplicitTemplateArgs().

Referenced by copyTemplateArgumentsInto(), getExplicitTemplateArgs(), getNumTemplateArgs(), getOptionalExplicitTemplateArgs(), getTemplateArgs(), and initializeTemplateArgumentsFrom().

const ASTTemplateArgumentListInfo& clang::CXXDependentScopeMemberExpr::getExplicitTemplateArgs ( ) const
inline

Retrieve the explicit template argument list that followed the member template name, if any.

Definition at line 3129 of file ExprCXX.h.

References getExplicitTemplateArgs().

NamedDecl* clang::CXXDependentScopeMemberExpr::getFirstQualifierFoundInScope ( ) const
inline

Retrieve the first part of the nested-name-specifier that was found in the scope of the member access expression when the member access was initially parsed.

This function only returns a useful result when member access expression uses a qualified member name, e.g., "x.Base::f". Here, the declaration returned by this function describes what was found by unqualified name lookup for the identifier "Base" within the scope of the member access expression itself. At template instantiation time, this information is combined with the results of name lookup into the type of the object expression itself (the class type of x).

Definition at line 3074 of file ExprCXX.h.

SourceLocation clang::CXXDependentScopeMemberExpr::getLAngleLoc ( ) const
inline

Retrieve the location of the left angle bracket starting the explicit template argument list following the member name, if any.

Definition at line 3101 of file ExprCXX.h.

References clang::ASTTemplateArgumentListInfo::LAngleLoc.

Referenced by hasExplicitTemplateArgs().

SourceLocation clang::CXXDependentScopeMemberExpr::getLocEnd ( ) const
inline
SourceLocation clang::CXXDependentScopeMemberExpr::getLocStart ( ) const
inline
DeclarationName clang::CXXDependentScopeMemberExpr::getMember ( ) const
inline

Retrieve the name of the member that this expression refers to.

Definition at line 3086 of file ExprCXX.h.

References clang::DeclarationNameInfo::getName().

SourceLocation clang::CXXDependentScopeMemberExpr::getMemberLoc ( ) const
inline

Definition at line 3090 of file ExprCXX.h.

References clang::DeclarationNameInfo::getLoc().

const DeclarationNameInfo& clang::CXXDependentScopeMemberExpr::getMemberNameInfo ( ) const
inline

Retrieve the name of the member that this expression refers to.

Definition at line 3080 of file ExprCXX.h.

unsigned clang::CXXDependentScopeMemberExpr::getNumTemplateArgs ( ) const
inline

Retrieve the number of template arguments provided as part of this template-id.

Definition at line 3162 of file ExprCXX.h.

References getExplicitTemplateArgs(), and clang::ASTTemplateArgumentListInfo::NumTemplateArgs.

SourceLocation clang::CXXDependentScopeMemberExpr::getOperatorLoc ( ) const
inline

Retrieve the location of the '->' or '.' operator.

Definition at line 3050 of file ExprCXX.h.

const ASTTemplateArgumentListInfo* clang::CXXDependentScopeMemberExpr::getOptionalExplicitTemplateArgs ( ) const
inline

Retrieves the optional explicit template arguments.

This points to the same data as getExplicitTemplateArgs(), but returns null if there are no explicit template arguments.

Definition at line 3138 of file ExprCXX.h.

References getExplicitTemplateArgs(), and hasExplicitTemplateArgs().

NestedNameSpecifier* clang::CXXDependentScopeMemberExpr::getQualifier ( ) const
inline

Retrieve the nested-name-specifier that qualifies the member name.

Definition at line 3054 of file ExprCXX.h.

References clang::NestedNameSpecifierLoc::getNestedNameSpecifier().

Referenced by getLocStart().

NestedNameSpecifierLoc clang::CXXDependentScopeMemberExpr::getQualifierLoc ( ) const
inline

Retrieve the nested-name-specifier that qualifies the member name, with source location information.

Definition at line 3060 of file ExprCXX.h.

Referenced by getLocStart().

SourceLocation clang::CXXDependentScopeMemberExpr::getRAngleLoc ( ) const
inline

Retrieve the location of the right angle bracket ending the explicit template argument list following the member name, if any.

Definition at line 3108 of file ExprCXX.h.

References clang::ASTTemplateArgumentListInfo::RAngleLoc.

Referenced by getLocEnd().

const TemplateArgumentLoc* clang::CXXDependentScopeMemberExpr::getTemplateArgs ( ) const
inline

Retrieve the template arguments provided as part of this template-id.

Definition at line 3156 of file ExprCXX.h.

References getExplicitTemplateArgs(), and clang::ASTTemplateArgumentListInfo::getTemplateArgs().

SourceLocation clang::CXXDependentScopeMemberExpr::getTemplateKeywordLoc ( ) const
inline

Retrieve the location of the template keyword preceding the member name, if any.

Definition at line 3094 of file ExprCXX.h.

References clang::ASTTemplateKWAndArgsInfo::getTemplateKeywordLoc().

Referenced by hasTemplateKeyword().

bool clang::CXXDependentScopeMemberExpr::hasExplicitTemplateArgs ( ) const
inline

Determines whether this member expression actually had a C++ template argument list explicitly specified, e.g., x.f<int>.

Definition at line 3118 of file ExprCXX.h.

References getLAngleLoc(), and clang::SourceLocation::isValid().

Referenced by getExplicitTemplateArgs(), getLocEnd(), and getOptionalExplicitTemplateArgs().

bool clang::CXXDependentScopeMemberExpr::hasTemplateKeyword ( ) const
inline

Determines whether the member name was preceded by the template keyword.

Definition at line 3114 of file ExprCXX.h.

References getTemplateKeywordLoc(), and clang::SourceLocation::isValid().

void clang::CXXDependentScopeMemberExpr::initializeTemplateArgumentsFrom ( const TemplateArgumentListInfo List)
inline

Initializes the template arguments using the given structure.

Definition at line 3150 of file ExprCXX.h.

References getExplicitTemplateArgs(), and clang::ASTTemplateArgumentListInfo::initializeFrom().

bool clang::CXXDependentScopeMemberExpr::isArrow ( ) const
inline

Determine whether this member expression used the '->' operator; otherwise, it used the '.' operator.

Definition at line 3047 of file ExprCXX.h.

bool CXXDependentScopeMemberExpr::isImplicitAccess ( ) const

True if this is an implicit access, i.e. one in which the member being accessed was not written in the source. The source location of the operator is invalid in this case.

Definition at line 1303 of file ExprCXX.cpp.

References clang::Expr::isImplicitCXXThis().

Referenced by children(), getBase(), and getLocStart().

Friends And Related Function Documentation

friend class ASTStmtReader
friend

Definition at line 3190 of file ExprCXX.h.

friend class ASTStmtWriter
friend

Definition at line 3191 of file ExprCXX.h.


The documentation for this class was generated from the following files: