clang
3.9.0
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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>
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. More... | |
Expr * | getBase () 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 '. More... | |
SourceLocation | getOperatorLoc () const |
Retrieve the location of the '->' or '.' operator. More... | |
NestedNameSpecifier * | getQualifier () 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... | |
NamedDecl * | getFirstQualifierFoundInScope () 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 DeclarationNameInfo & | getMemberNameInfo () 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... | |
void | copyTemplateArgumentsInto (TemplateArgumentListInfo &List) const |
Copies the template arguments (if present) into the given structure. More... | |
const TemplateArgumentLoc * | getTemplateArgs () 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... | |
ArrayRef< TemplateArgumentLoc > | template_arguments () const |
SourceLocation | getLocStart () const LLVM_READONLY |
SourceLocation | getLocEnd () const LLVM_READONLY |
child_range | children () |
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QualType | getType () const |
void | setType (QualType t) |
bool | isValueDependent () const |
isValueDependent - Determines whether this expression is value-dependent (C++ [temp.dep.constexpr]). More... | |
void | setValueDependent (bool VD) |
Set whether this expression is value-dependent or not. More... | |
bool | isTypeDependent () const |
isTypeDependent - Determines whether this expression is type-dependent (C++ [temp.dep.expr]), which means that its type could change from one template instantiation to the next. More... | |
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 |
getExprLoc - Return the preferred location for the arrow when diagnosing a problem with a generic expression. More... | |
bool | isUnusedResultAWarning (const Expr *&WarnExpr, SourceLocation &Loc, SourceRange &R1, SourceRange &R2, ASTContext &Ctx) const |
isUnusedResultAWarning - Return true if this immediate expression should be warned about if the result is unused. More... | |
bool | isLValue () const |
isLValue - True if this expression is an "l-value" according to the rules of the current language. More... | |
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 |
isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, does not have an incomplete type, does not have a const-qualified type, and if it is a structure or union, does not have any member (including, recursively, any member or element of all contained aggregates or unions) with a const-qualified type. More... | |
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 |
getObjectKind - The object kind that this expression produces. More... | |
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... | |
FieldDecl * | getSourceBitField () |
If this expression refers to a bit-field, retrieve the declaration of that bit-field. More... | |
const FieldDecl * | getSourceBitField () const |
const ObjCPropertyRefExpr * | getObjCProperty () 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 | refersToGlobalRegisterVar () const |
Returns whether this expression refers to a global register variable. 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 |
isKnownToHaveBooleanValue - Return true if this is an integer expression that is known to return 0 or 1. More... | |
bool | isIntegerConstantExpr (llvm::APSInt &Result, const ASTContext &Ctx, SourceLocation *Loc=nullptr, bool isEvaluated=true) const |
isIntegerConstantExpr - Return true if this expression is a valid integer constant expression, and, if so, return its value in Result. More... | |
bool | isIntegerConstantExpr (const ASTContext &Ctx, SourceLocation *Loc=nullptr) const |
bool | isCXX98IntegralConstantExpr (const ASTContext &Ctx) const |
isCXX98IntegralConstantExpr - Return true if this expression is an integral constant expression in C++98. More... | |
bool | isCXX11ConstantExpr (const ASTContext &Ctx, APValue *Result=nullptr, SourceLocation *Loc=nullptr) const |
isCXX11ConstantExpr - Return true if this expression is a constant expression in C++11. More... | |
bool | isConstantInitializer (ASTContext &Ctx, bool ForRef, const Expr **Culprit=nullptr) const |
isConstantInitializer - Returns true if this expression can be emitted to IR as a constant, and thus can be used as a constant initializer in C. More... | |
bool | EvaluateAsRValue (EvalResult &Result, const ASTContext &Ctx) const |
EvaluateAsRValue - Return true if this is a constant which we can fold to an rvalue using any crazy technique (that has nothing to do with language standards) that we want to, even if the expression has side-effects. More... | |
bool | EvaluateAsBooleanCondition (bool &Result, const ASTContext &Ctx) const |
EvaluateAsBooleanCondition - Return true if this is a constant which we we can fold and convert to a boolean condition using any crazy technique that we want to, even if the expression has side-effects. More... | |
bool | EvaluateAsInt (llvm::APSInt &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const |
EvaluateAsInt - Return true if this is a constant which we can fold and convert to an integer, using any crazy technique that we want to. More... | |
bool | EvaluateAsFloat (llvm::APFloat &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const |
EvaluateAsFloat - Return true if this is a constant which we can fold and convert to a floating point value, using any crazy technique that we want to. More... | |
bool | isEvaluatable (const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const |
isEvaluatable - Call EvaluateAsRValue to see if this expression can be constant folded without side-effects, but discard the result. More... | |
bool | HasSideEffects (const ASTContext &Ctx, bool IncludePossibleEffects=true) const |
HasSideEffects - This routine returns true for all those expressions which have any effect other than producing a value. More... | |
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 |
EvaluateKnownConstInt - Call EvaluateAsRValue and return the folded integer. More... | |
void | EvaluateForOverflow (const ASTContext &Ctx) const |
bool | EvaluateAsLValue (EvalResult &Result, const ASTContext &Ctx) const |
EvaluateAsLValue - Evaluate an expression to see if we can fold it to an lvalue with link time known address, with no side-effects. More... | |
bool | EvaluateAsInitializer (APValue &Result, const ASTContext &Ctx, const VarDecl *VD, SmallVectorImpl< PartialDiagnosticAt > &Notes) const |
EvaluateAsInitializer - Evaluate an expression as if it were the initializer of the given declaration. More... | |
bool | EvaluateWithSubstitution (APValue &Value, ASTContext &Ctx, const FunctionDecl *Callee, ArrayRef< const Expr * > Args) const |
EvaluateWithSubstitution - Evaluate an expression as if from the context of a call to the given function with the given arguments, inside an unevaluated context. More... | |
bool | tryEvaluateObjectSize (uint64_t &Result, ASTContext &Ctx, unsigned Type) const |
If the current Expr is a pointer, this will try to statically determine the number of bytes available where the pointer is pointing. More... | |
NullPointerConstantKind | isNullPointerConstant (ASTContext &Ctx, NullPointerConstantValueDependence NPC) const |
isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to a Null pointer constant. More... | |
bool | isOBJCGCCandidate (ASTContext &Ctx) const |
isOBJCGCCandidate - Return true if this expression may be used in a read/ write barrier. More... | |
bool | isBoundMemberFunction (ASTContext &Ctx) const |
Returns true if this expression is a bound member function. More... | |
Expr * | IgnoreImpCasts () LLVM_READONLY |
IgnoreImpCasts - Skip past any implicit casts which might surround this expression. More... | |
Expr * | IgnoreImplicit () LLVM_READONLY |
IgnoreImplicit - Skip past any implicit AST nodes which might surround this expression. More... | |
const Expr * | IgnoreImplicit () const LLVM_READONLY |
Expr * | IgnoreParens () LLVM_READONLY |
IgnoreParens - Ignore parentheses. More... | |
Expr * | IgnoreParenCasts () LLVM_READONLY |
IgnoreParenCasts - Ignore parentheses and casts. More... | |
Expr * | IgnoreCasts () LLVM_READONLY |
Ignore casts. Strip off any CastExprs, returning their operand. More... | |
Expr * | IgnoreParenImpCasts () LLVM_READONLY |
IgnoreParenImpCasts - Ignore parentheses and implicit casts. More... | |
Expr * | IgnoreConversionOperator () LLVM_READONLY |
IgnoreConversionOperator - Ignore conversion operator. More... | |
const Expr * | IgnoreConversionOperator () const LLVM_READONLY |
const Expr * | IgnoreParenImpCasts () const LLVM_READONLY |
Expr * | IgnoreParenLValueCasts () LLVM_READONLY |
Ignore parentheses and lvalue casts. More... | |
const Expr * | IgnoreParenLValueCasts () const LLVM_READONLY |
Expr * | IgnoreParenNoopCasts (ASTContext &Ctx) LLVM_READONLY |
IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the value (including ptr->int casts of the same size). More... | |
Expr * | ignoreParenBaseCasts () LLVM_READONLY |
Ignore parentheses and derived-to-base casts. More... | |
const Expr * | ignoreParenBaseCasts () 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 Expr * | IgnoreImpCasts () const LLVM_READONLY |
const Expr * | IgnoreParens () const LLVM_READONLY |
const Expr * | IgnoreParenCasts () const LLVM_READONLY |
const Expr * | IgnoreCasts () const LLVM_READONLY |
Strip off casts, but keep parentheses. More... | |
const Expr * | IgnoreParenNoopCasts (ASTContext &Ctx) const LLVM_READONLY |
const CXXRecordDecl * | getBestDynamicClassType () 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 Expr * | skipRValueSubobjectAdjustments (SmallVectorImpl< const Expr * > &CommaLHS, SmallVectorImpl< SubobjectAdjustment > &Adjustments) const |
Walk outwards from an expression we want to bind a reference to and find the expression whose lifetime needs to be extended. More... | |
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) |
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static ExprValueKind | getValueKindForType (QualType T) |
getValueKindForType - Given a formal return or parameter type, give its value kind. More... | |
static bool | isPotentialConstantExpr (const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags) |
isPotentialConstantExpr - Return true if this function's definition might be usable in a constant expression in C++11, if it were marked constexpr. More... | |
static bool | isPotentialConstantExprUnevaluated (Expr *E, const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags) |
isPotentialConstantExprUnevaluted - Return true if this expression might be usable in a constant expression in C++11 in an unevaluated context, if it were in function FD marked constexpr. More... | |
static QualType | findBoundMemberType (const Expr *expr) |
Given an expression of bound-member type, find the type of the member. More... | |
static bool | hasAnyTypeDependentArguments (ArrayRef< Expr * > Exprs) |
hasAnyTypeDependentArguments - Determines if any of the expressions in Exprs is type-dependent. More... | |
static bool | classof (const Stmt *T) |
Public Attributes | |
friend | TrailingObjects |
Friends | |
class | ASTStmtReader |
class | ASTStmtWriter |
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.
clang::CXXDependentScopeMemberExpr::CXXDependentScopeMemberExpr | ( | const ASTContext & | C, |
Expr * | Base, | ||
QualType | BaseType, | ||
bool | IsArrow, | ||
SourceLocation | OperatorLoc, | ||
NestedNameSpecifierLoc | QualifierLoc, | ||
NamedDecl * | FirstQualifierFoundInScope, | ||
DeclarationNameInfo | MemberNameInfo | ||
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Definition at line 3340 of file ExprCXX.h.
References isImplicitAccess().
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Copies the template arguments (if present) into the given structure.
Definition at line 3293 of file ExprCXX.h.
References hasExplicitTemplateArgs().
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Definition at line 1143 of file ExprCXX.cpp.
References clang::ASTContext::Allocate(), clang::SourceLocation::isValid(), and clang::TemplateArgumentListInfo::size().
Referenced by clang::Sema::ActOnDependentIdExpression(), clang::Sema::ActOnDependentMemberExpr(), clang::Sema::LookupInlineAsmVarDeclField(), and recoverFromMSUnqualifiedLookup().
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Definition at line 1167 of file ExprCXX.cpp.
References clang::ASTContext::Allocate(), and E.
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Retrieve the base object of this member expressions, e.g., the x
in x.m
.
Definition at line 3209 of file ExprCXX.h.
References isImplicitAccess().
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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).
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Retrieve the location of the left angle bracket starting the explicit template argument list following the member name, if any.
Definition at line 3272 of file ExprCXX.h.
Referenced by hasExplicitTemplateArgs().
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Definition at line 3329 of file ExprCXX.h.
References clang::DeclarationNameInfo::getEndLoc(), getRAngleLoc(), and hasExplicitTemplateArgs().
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Definition at line 3321 of file ExprCXX.h.
References clang::NestedNameSpecifierLoc::getBeginLoc(), clang::DeclarationNameInfo::getBeginLoc(), getQualifier(), getQualifierLoc(), and isImplicitAccess().
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Retrieve the name of the member that this expression refers to.
Definition at line 3257 of file ExprCXX.h.
References clang::DeclarationNameInfo::getName().
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Definition at line 3261 of file ExprCXX.h.
References clang::DeclarationNameInfo::getLoc().
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Retrieve the number of template arguments provided as part of this template-id.
Definition at line 3310 of file ExprCXX.h.
References hasExplicitTemplateArgs().
Referenced by template_arguments().
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Retrieve the nested-name-specifier that qualifies the member name.
Definition at line 3225 of file ExprCXX.h.
References clang::NestedNameSpecifierLoc::getNestedNameSpecifier().
Referenced by getLocStart().
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Retrieve the nested-name-specifier that qualifies the member name, with source location information.
Definition at line 3231 of file ExprCXX.h.
Referenced by getLocStart().
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Retrieve the location of the right angle bracket ending the explicit template argument list following the member name, if any.
Definition at line 3279 of file ExprCXX.h.
Referenced by getLocEnd().
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Retrieve the template arguments provided as part of this template-id.
Definition at line 3301 of file ExprCXX.h.
References hasExplicitTemplateArgs().
Referenced by template_arguments().
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Retrieve the location of the template keyword preceding the member name, if any.
Definition at line 3265 of file ExprCXX.h.
Referenced by hasTemplateKeyword().
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Determines whether this member expression actually had a C++ template argument list explicitly specified, e.g., x.f<int>.
Definition at line 3289 of file ExprCXX.h.
References getLAngleLoc(), and clang::SourceLocation::isValid().
Referenced by copyTemplateArgumentsInto(), getLocEnd(), getNumTemplateArgs(), and getTemplateArgs().
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Determines whether the member name was preceded by the template keyword.
Definition at line 3285 of file ExprCXX.h.
References getTemplateKeywordLoc(), and clang::SourceLocation::isValid().
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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 1185 of file ExprCXX.cpp.
References clang::Expr::isImplicitCXXThis().
Referenced by children(), getBase(), and getLocStart().
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Definition at line 3317 of file ExprCXX.h.
References getNumTemplateArgs(), and getTemplateArgs().
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friend clang::CXXDependentScopeMemberExpr::TrailingObjects |