clang  14.0.0git
Classes | Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | Friends | List of all members
clang::Expr Class Reference

This represents one expression. More...

#include "clang/AST/Expr.h"

Inherits clang::ValueStmt.

Inherited by clang::AbstractConditionalOperator, clang::AddrLabelExpr, clang::ArrayInitIndexExpr, clang::ArrayInitLoopExpr, clang::ArraySubscriptExpr, clang::ArrayTypeTraitExpr, clang::AsTypeExpr, clang::AtomicExpr, clang::BinaryOperator, clang::BlockExpr, clang::CallExpr, clang::CastExpr, clang::CharacterLiteral, clang::ChooseExpr, clang::CompoundLiteralExpr, clang::ConceptSpecializationExpr, clang::ConvertVectorExpr, clang::CoroutineSuspendExpr, clang::CXXBindTemporaryExpr, clang::CXXBoolLiteralExpr, clang::CXXConstructExpr, clang::CXXDefaultArgExpr, clang::CXXDefaultInitExpr, clang::CXXDeleteExpr, clang::CXXDependentScopeMemberExpr, clang::CXXFoldExpr, clang::CXXInheritedCtorInitExpr, clang::CXXNewExpr, clang::CXXNoexceptExpr, clang::CXXNullPtrLiteralExpr, clang::CXXPseudoDestructorExpr, clang::CXXRewrittenBinaryOperator, clang::CXXScalarValueInitExpr, clang::CXXStdInitializerListExpr, clang::CXXThisExpr, clang::CXXThrowExpr, clang::CXXTypeidExpr, clang::CXXUnresolvedConstructExpr, clang::CXXUuidofExpr, clang::DeclRefExpr, clang::DependentCoawaitExpr, clang::DependentScopeDeclRefExpr, clang::DesignatedInitExpr, clang::DesignatedInitUpdateExpr, clang::ExpressionTraitExpr, clang::ExtVectorElementExpr, clang::FixedPointLiteral, clang::FloatingLiteral, clang::FullExpr, clang::FunctionParmPackExpr, clang::GenericSelectionExpr, clang::GNUNullExpr, clang::ImaginaryLiteral, clang::ImplicitValueInitExpr, clang::InitListExpr, clang::IntegerLiteral, clang::LambdaExpr, clang::MaterializeTemporaryExpr, clang::MatrixSubscriptExpr, clang::MemberExpr, clang::MSPropertyRefExpr, clang::MSPropertySubscriptExpr, clang::NoInitExpr, clang::ObjCArrayLiteral, clang::ObjCAvailabilityCheckExpr, clang::ObjCBoolLiteralExpr, clang::ObjCBoxedExpr, clang::ObjCDictionaryLiteral, clang::ObjCEncodeExpr, clang::ObjCIndirectCopyRestoreExpr, clang::ObjCIsaExpr, clang::ObjCIvarRefExpr, clang::ObjCMessageExpr, clang::ObjCPropertyRefExpr, clang::ObjCProtocolExpr, clang::ObjCSelectorExpr, clang::ObjCStringLiteral, clang::ObjCSubscriptRefExpr, clang::OffsetOfExpr, clang::OMPArraySectionExpr, clang::OMPArrayShapingExpr, clang::OMPIteratorExpr, clang::OpaqueValueExpr, clang::OverloadExpr, clang::PackExpansionExpr, clang::ParenExpr, clang::ParenListExpr, clang::PredefinedExpr, clang::PseudoObjectExpr, clang::RecoveryExpr, clang::RequiresExpr, clang::ShuffleVectorExpr, clang::SizeOfPackExpr, clang::SourceLocExpr, clang::StmtExpr, clang::StringLiteral, clang::SubstNonTypeTemplateParmExpr, clang::SubstNonTypeTemplateParmPackExpr, clang::SYCLUniqueStableNameExpr, clang::TypeTraitExpr, clang::TypoExpr, clang::UnaryExprOrTypeTraitExpr, clang::UnaryOperator, and clang::VAArgExpr.

Collaboration diagram for clang::Expr:
Collaboration graph
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Classes

class  Classification
 The return type of classify(). More...
 
struct  EvalResult
 EvalResult is a struct with detailed info about an evaluated expression. More...
 
struct  EvalStatus
 EvalStatus is a struct with detailed info about an evaluation in progress. More...
 

Public Types

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_ConstQualifiedField, MLV_ConstAddrSpace, MLV_ArrayType, MLV_NoSetterProperty,
  MLV_MemberFunction, MLV_SubObjCPropertySetting, MLV_InvalidMessageExpression, MLV_ClassTemporary,
  MLV_ArrayTemporary
}
 
enum  SideEffectsKind { SE_NoSideEffects, SE_AllowUndefinedBehavior, SE_AllowSideEffects }
 
enum  ConstantExprKind { ConstantExprKind::Normal, ConstantExprKind::NonClassTemplateArgument, ConstantExprKind::ClassTemplateArgument, ConstantExprKind::ImmediateInvocation }
 
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...
 
- Public Types inherited from clang::Stmt
enum  StmtClass { NoStmtClass = 0 }
 
enum  Likelihood { LH_Unlikely = -1, LH_None, LH_Likely }
 The likelihood of a branch being taken. More...
 
using child_iterator = StmtIterator
 Child Iterators: All subclasses must implement 'children' to permit easy iteration over the substatements/subexpessions of an AST node. More...
 
using const_child_iterator = ConstStmtIterator
 
using child_range = llvm::iterator_range< child_iterator >
 
using const_child_range = llvm::iterator_range< const_child_iterator >
 

Public Member Functions

 Expr ()=delete
 
 Expr (const Expr &)=delete
 
 Expr (Expr &&)=delete
 
Exproperator= (const Expr &)=delete
 
Exproperator= (Expr &&)=delete
 
QualType getType () const
 
void setType (QualType t)
 
ExprDependence getDependence () const
 
bool isValueDependent () const
 Determines whether the value of this expression depends on. More...
 
bool isTypeDependent () const
 Determines whether the type of this expression depends on. More...
 
bool isInstantiationDependent () const
 Whether this expression is instantiation-dependent, meaning that it depends in some way on. More...
 
bool containsUnexpandedParameterPack () const
 Whether this expression contains an unexpanded parameter pack (for C++11 variadic templates). More...
 
bool containsErrors () const
 Whether this expression contains subexpressions which had errors, e.g. More...
 
SourceLocation getExprLoc () const LLVM_READONLY
 getExprLoc - Return the preferred location for the arrow when diagnosing a problem with a generic expression. More...
 
bool isReadIfDiscardedInCPlusPlus11 () const
 Determine whether an lvalue-to-rvalue conversion should implicitly be applied to this expression if it appears as a discarded-value expression in C++11 onwards. 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 isPRValue () 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...
 
FPOptions getFPFeaturesInEffect (const LangOptions &LO) const
 Returns the set of floating point options that apply to this expression. 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...
 
FieldDeclgetSourceBitField ()
 If this expression refers to a bit-field, retrieve the declaration of that bit-field. More...
 
const FieldDeclgetSourceBitField () const
 
DeclgetReferencedDeclOfCallee ()
 
const DeclgetReferencedDeclOfCallee () 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 refersToMatrixElement () const
 Returns whether this expression refers to a matrix 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 (bool Semantic=true) const
 isKnownToHaveBooleanValue - Return true if this is an integer expression that is known to return 0 or 1. More...
 
Optional< llvm::APSIntgetIntegerConstantExpr (const ASTContext &Ctx, SourceLocation *Loc=nullptr, bool isEvaluated=true) const
 isIntegerConstantExpr - Return the value if this expression is a valid integer constant expression. 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, bool InConstantContext=false) 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, bool InConstantContext=false) const
 EvaluateAsBooleanCondition - Return true if this is a constant which 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 (EvalResult &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects, bool InConstantContext=false) 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, bool InConstantContext=false) 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 EvaluateAsFixedPoint (EvalResult &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects, bool InConstantContext=false) const
 EvaluateAsFloat - Return true if this is a constant which we can fold and convert to a fixed point value. 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...
 
llvm::APSInt EvaluateKnownConstIntCheckOverflow (const ASTContext &Ctx, SmallVectorImpl< PartialDiagnosticAt > *Diag=nullptr) const
 
void EvaluateForOverflow (const ASTContext &Ctx) const
 
bool EvaluateAsLValue (EvalResult &Result, const ASTContext &Ctx, bool InConstantContext=false) 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, bool IsConstantInitializer) 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 Expr *This=nullptr) 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 EvaluateAsConstantExpr (EvalResult &Result, const ASTContext &Ctx, ConstantExprKind Kind=ConstantExprKind::Normal) const
 Evaluate an expression that is required to be a constant expression. 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...
 
bool tryEvaluateStrLen (uint64_t &Result, ASTContext &Ctx) const
 If the current Expr is a pointer, this will try to statically determine the strlen of the string pointed to. 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...
 
ExprIgnoreUnlessSpelledInSource ()
 Skip past any invisble AST nodes which might surround this statement, such as ExprWithCleanups or ImplicitCastExpr nodes, but also injected CXXMemberExpr and CXXConstructExpr which represent implicit conversions. More...
 
const ExprIgnoreUnlessSpelledInSource () const
 
ExprIgnoreImpCasts () LLVM_READONLY
 Skip past any implicit casts which might surround this expression until reaching a fixed point. More...
 
const ExprIgnoreImpCasts () const
 
ExprIgnoreCasts () LLVM_READONLY
 Skip past any casts which might surround this expression until reaching a fixed point. More...
 
const ExprIgnoreCasts () const
 
ExprIgnoreImplicit () LLVM_READONLY
 Skip past any implicit AST nodes which might surround this expression until reaching a fixed point. More...
 
const ExprIgnoreImplicit () const
 
ExprIgnoreImplicitAsWritten () LLVM_READONLY
 Skip past any implicit AST nodes which might surround this expression until reaching a fixed point. More...
 
const ExprIgnoreImplicitAsWritten () const
 
ExprIgnoreParens () LLVM_READONLY
 Skip past any parentheses which might surround this expression until reaching a fixed point. More...
 
const ExprIgnoreParens () const
 
ExprIgnoreParenImpCasts () LLVM_READONLY
 Skip past any parentheses and implicit casts which might surround this expression until reaching a fixed point. More...
 
const ExprIgnoreParenImpCasts () const
 
ExprIgnoreParenCasts () LLVM_READONLY
 Skip past any parentheses and casts which might surround this expression until reaching a fixed point. More...
 
const ExprIgnoreParenCasts () const
 
ExprIgnoreConversionOperatorSingleStep () LLVM_READONLY
 Skip conversion operators. More...
 
const ExprIgnoreConversionOperatorSingleStep () const
 
ExprIgnoreParenLValueCasts () LLVM_READONLY
 Skip past any parentheses and lvalue casts which might surround this expression until reaching a fixed point. More...
 
const ExprIgnoreParenLValueCasts () const
 
ExprIgnoreParenNoopCasts (const ASTContext &Ctx) LLVM_READONLY
 Skip past any parenthese and casts which do not change the value (including ptr->int casts of the same size) until reaching a fixed point. More...
 
const ExprIgnoreParenNoopCasts (const ASTContext &Ctx) const
 
ExprIgnoreParenBaseCasts () LLVM_READONLY
 Skip past any parentheses and derived-to-base casts until reaching a fixed point. More...
 
const ExprIgnoreParenBaseCasts () const
 
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 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 ExprgetBestDynamicClassTypeExpr () const
 Get the inner expression that determines the best dynamic class. More...
 
const ExprskipRValueSubobjectAdjustments (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...
 
const ExprskipRValueSubobjectAdjustments () const
 
- Public Member Functions inherited from clang::ValueStmt
const ExprgetExprStmt () const
 
ExprgetExprStmt ()
 
- Public Member Functions inherited from clang::Stmt
void * operator new (size_t bytes, const ASTContext &C, unsigned alignment=8)
 
void * operator new (size_t bytes, const ASTContext *C, unsigned alignment=8)
 
void * operator new (size_t bytes, void *mem) noexcept
 
void operator delete (void *, const ASTContext &, unsigned) noexcept
 
void operator delete (void *, const ASTContext *, unsigned) noexcept
 
void operator delete (void *, size_t) noexcept
 
void operator delete (void *, void *) noexcept
 
 Stmt ()=delete
 
 Stmt (const Stmt &)=delete
 
 Stmt (Stmt &&)=delete
 
Stmtoperator= (const Stmt &)=delete
 
Stmtoperator= (Stmt &&)=delete
 
 Stmt (StmtClass SC)
 
StmtClass getStmtClass () const
 
const char * getStmtClassName () const
 
SourceRange getSourceRange () const LLVM_READONLY
 SourceLocation tokens are not useful in isolation - they are low level value objects created/interpreted by SourceManager. More...
 
SourceLocation getBeginLoc () const LLVM_READONLY
 
SourceLocation getEndLoc () const LLVM_READONLY
 
void dump () const
 Dumps the specified AST fragment and all subtrees to llvm::errs(). More...
 
void dump (raw_ostream &OS, const ASTContext &Context) const
 
int64_t getID (const ASTContext &Context) const
 
void dumpColor () const
 dumpColor - same as dump(), but forces color highlighting. More...
 
void dumpPretty (const ASTContext &Context) const
 dumpPretty/printPretty - These two methods do a "pretty print" of the AST back to its original source language syntax. More...
 
void printPretty (raw_ostream &OS, PrinterHelper *Helper, const PrintingPolicy &Policy, unsigned Indentation=0, StringRef NewlineSymbol="\n", const ASTContext *Context=nullptr) const
 
void printJson (raw_ostream &Out, PrinterHelper *Helper, const PrintingPolicy &Policy, bool AddQuotes) const
 Pretty-prints in JSON format. More...
 
void viewAST () const
 viewAST - Visualize an AST rooted at this Stmt* using GraphViz. More...
 
StmtIgnoreContainers (bool IgnoreCaptured=false)
 Skip no-op (attributed, compound) container stmts and skip captured stmt at the top, if IgnoreCaptured is true. More...
 
const StmtIgnoreContainers (bool IgnoreCaptured=false) const
 
const StmtstripLabelLikeStatements () const
 Strip off all label-like statements. More...
 
StmtstripLabelLikeStatements ()
 
child_range children ()
 
const_child_range children () const
 
child_iterator child_begin ()
 
child_iterator child_end ()
 
const_child_iterator child_begin () const
 
const_child_iterator child_end () const
 
void Profile (llvm::FoldingSetNodeID &ID, const ASTContext &Context, bool Canonical) const
 Produce a unique representation of the given statement. More...
 
void ProcessODRHash (llvm::FoldingSetNodeID &ID, ODRHash &Hash) const
 Calculate a unique representation for a statement that is stable across compiler invocations. More...
 

Static Public Member Functions

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 isSameComparisonOperand (const Expr *E1, const Expr *E2)
 Checks that the two Expr's will refer to the same value as a comparison operand. More...
 
static bool classof (const Stmt *T)
 
- Static Public Member Functions inherited from clang::ValueStmt
static bool classof (const Stmt *T)
 
- Static Public Member Functions inherited from clang::Stmt
static void addStmtClass (const StmtClass s)
 
static void EnableStatistics ()
 
static void PrintStats ()
 
static Likelihood getLikelihood (ArrayRef< const Attr * > Attrs)
 
static Likelihood getLikelihood (const Stmt *S)
 
static const AttrgetLikelihoodAttr (const Stmt *S)
 
static Likelihood getLikelihood (const Stmt *Then, const Stmt *Else)
 
static std::tuple< bool, const Attr *, const Attr * > determineLikelihoodConflict (const Stmt *Then, const Stmt *Else)
 

Protected Member Functions

 Expr (StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK)
 
 Expr (StmtClass SC, EmptyShell)
 Construct an empty expression. More...
 
void setDependence (ExprDependence Deps)
 Each concrete expr subclass is expected to compute its dependence and call this in the constructor. More...
 
- Protected Member Functions inherited from clang::ValueStmt
 Stmt (StmtClass SC, EmptyShell)
 Construct an empty statement. More...
 
 Stmt ()=delete
 
 Stmt (const Stmt &)=delete
 
 Stmt (Stmt &&)=delete
 
 Stmt (StmtClass SC)
 
- Protected Member Functions inherited from clang::Stmt
void * operator new (size_t bytes) noexcept
 
void operator delete (void *data) noexcept
 
 Stmt (StmtClass SC, EmptyShell)
 Construct an empty statement. More...
 

Friends

class ASTImporter
 
class ASTStmtReader
 

Additional Inherited Members

- Protected Types inherited from clang::Stmt
enum  { NumStmtBits = 8 }
 
enum  { NumExprBits = NumStmtBits + 5 + llvm::BitWidth<ExprDependence> }
 
enum  { NumCallExprBits = 32 }
 
enum  { NumOverloadExprBits = NumExprBits + 1 }
 
template<typename T >
using ConstCastIterator = CastIterator< T, const T *const, const Stmt *const >
 Const iterator for iterating over Stmt * arrays that contain only T *. More...
 
using ExprIterator = CastIterator< Expr >
 
using ConstExprIterator = ConstCastIterator< Expr >
 
- Protected Attributes inherited from clang::Stmt
union {
   StmtBitfields   StmtBits
 
   NullStmtBitfields   NullStmtBits
 
   CompoundStmtBitfields   CompoundStmtBits
 
   LabelStmtBitfields   LabelStmtBits
 
   AttributedStmtBitfields   AttributedStmtBits
 
   IfStmtBitfields   IfStmtBits
 
   SwitchStmtBitfields   SwitchStmtBits
 
   WhileStmtBitfields   WhileStmtBits
 
   DoStmtBitfields   DoStmtBits
 
   ForStmtBitfields   ForStmtBits
 
   GotoStmtBitfields   GotoStmtBits
 
   ContinueStmtBitfields   ContinueStmtBits
 
   BreakStmtBitfields   BreakStmtBits
 
   ReturnStmtBitfields   ReturnStmtBits
 
   SwitchCaseBitfields   SwitchCaseBits
 
   ExprBitfields   ExprBits
 
   ConstantExprBitfields   ConstantExprBits
 
   PredefinedExprBitfields   PredefinedExprBits
 
   DeclRefExprBitfields   DeclRefExprBits
 
   FloatingLiteralBitfields   FloatingLiteralBits
 
   StringLiteralBitfields   StringLiteralBits
 
   CharacterLiteralBitfields   CharacterLiteralBits
 
   UnaryOperatorBitfields   UnaryOperatorBits
 
   UnaryExprOrTypeTraitExprBitfields   UnaryExprOrTypeTraitExprBits
 
   ArrayOrMatrixSubscriptExprBitfields   ArrayOrMatrixSubscriptExprBits
 
   CallExprBitfields   CallExprBits
 
   MemberExprBitfields   MemberExprBits
 
   CastExprBitfields   CastExprBits
 
   BinaryOperatorBitfields   BinaryOperatorBits
 
   InitListExprBitfields   InitListExprBits
 
   ParenListExprBitfields   ParenListExprBits
 
   GenericSelectionExprBitfields   GenericSelectionExprBits
 
   PseudoObjectExprBitfields   PseudoObjectExprBits
 
   SourceLocExprBitfields   SourceLocExprBits
 
   StmtExprBitfields   StmtExprBits
 
   CXXOperatorCallExprBitfields   CXXOperatorCallExprBits
 
   CXXRewrittenBinaryOperatorBitfields   CXXRewrittenBinaryOperatorBits
 
   CXXBoolLiteralExprBitfields   CXXBoolLiteralExprBits
 
   CXXNullPtrLiteralExprBitfields   CXXNullPtrLiteralExprBits
 
   CXXThisExprBitfields   CXXThisExprBits
 
   CXXThrowExprBitfields   CXXThrowExprBits
 
   CXXDefaultArgExprBitfields   CXXDefaultArgExprBits
 
   CXXDefaultInitExprBitfields   CXXDefaultInitExprBits
 
   CXXScalarValueInitExprBitfields   CXXScalarValueInitExprBits
 
   CXXNewExprBitfields   CXXNewExprBits
 
   CXXDeleteExprBitfields   CXXDeleteExprBits
 
   TypeTraitExprBitfields   TypeTraitExprBits
 
   DependentScopeDeclRefExprBitfields   DependentScopeDeclRefExprBits
 
   CXXConstructExprBitfields   CXXConstructExprBits
 
   ExprWithCleanupsBitfields   ExprWithCleanupsBits
 
   CXXUnresolvedConstructExprBitfields   CXXUnresolvedConstructExprBits
 
   CXXDependentScopeMemberExprBitfields   CXXDependentScopeMemberExprBits
 
   OverloadExprBitfields   OverloadExprBits
 
   UnresolvedLookupExprBitfields   UnresolvedLookupExprBits
 
   UnresolvedMemberExprBitfields   UnresolvedMemberExprBits
 
   CXXNoexceptExprBitfields   CXXNoexceptExprBits
 
   SubstNonTypeTemplateParmExprBitfields   SubstNonTypeTemplateParmExprBits
 
   LambdaExprBitfields   LambdaExprBits
 
   RequiresExprBitfields   RequiresExprBits
 
   CoawaitExprBitfields   CoawaitBits
 
   ObjCIndirectCopyRestoreExprBitfields   ObjCIndirectCopyRestoreExprBits
 
   OpaqueValueExprBitfields   OpaqueValueExprBits
 
}; 
 

Detailed Description

This represents one expression.

Note that Expr's are subclasses of Stmt. This allows an expression to be transparently used any place a Stmt is required.

Definition at line 109 of file Expr.h.

Member Enumeration Documentation

◆ ConstantExprKind

Enumerator
Normal 

An integer constant expression (an array bound, enumerator, case value, bit-field width, or similar) or similar.

NonClassTemplateArgument 

A non-class template argument.

Such a value is only used for mangling, not for code generation, so can refer to dllimported functions.

ClassTemplateArgument 

A class template argument. Such a value is used for code generation.

ImmediateInvocation 

An immediate invocation.

The destruction of the end result of this evaluation is not part of the evaluation, but all other temporaries are destroyed.

Definition at line 712 of file Expr.h.

◆ isModifiableLvalueResult

Enumerator
MLV_Valid 
MLV_NotObjectType 
MLV_IncompleteVoidType 
MLV_DuplicateVectorComponents 
MLV_InvalidExpression 
MLV_LValueCast 
MLV_IncompleteType 
MLV_ConstQualified 
MLV_ConstQualifiedField 
MLV_ConstAddrSpace 
MLV_ArrayType 
MLV_NoSetterProperty 
MLV_MemberFunction 
MLV_SubObjCPropertySetting 
MLV_InvalidMessageExpression 
MLV_ClassTemporary 
MLV_ArrayTemporary 

Definition at line 290 of file Expr.h.

◆ LValueClassification

Enumerator
LV_Valid 
LV_NotObjectType 
LV_IncompleteVoidType 
LV_DuplicateVectorComponents 
LV_InvalidExpression 
LV_InvalidMessageExpression 
LV_MemberFunction 
LV_SubObjCPropertySetting 
LV_ClassTemporary 
LV_ArrayTemporary 

Definition at line 275 of file Expr.h.

◆ NullPointerConstantKind

Enumeration used to describe the kind of Null pointer constant returned from isNullPointerConstant().

Enumerator
NPCK_NotNull 

Expression is not a Null pointer constant.

NPCK_ZeroExpression 

Expression is a Null pointer constant built from a zero integer expression that is not a simple, possibly parenthesized, zero literal.

C++ Core Issue 903 will classify these expressions as "not pointers" once it is adopted. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#903

NPCK_ZeroLiteral 

Expression is a Null pointer constant built from a literal zero.

NPCK_CXX11_nullptr 

Expression is a C++11 nullptr.

NPCK_GNUNull 

Expression is a GNU-style __null constant.

Definition at line 751 of file Expr.h.

◆ NullPointerConstantValueDependence

Enumeration used to describe how isNullPointerConstant() should cope with value-dependent expressions.

Enumerator
NPC_NeverValueDependent 

Specifies that the expression should never be value-dependent.

NPC_ValueDependentIsNull 

Specifies that a value-dependent expression of integral or dependent type should be considered a null pointer constant.

NPC_ValueDependentIsNotNull 

Specifies that a value-dependent expression should be considered to never be a null pointer constant.

Definition at line 774 of file Expr.h.

◆ SideEffectsKind

Enumerator
SE_NoSideEffects 

Strictly evaluate the expression.

SE_AllowUndefinedBehavior 

Allow UB that we can give a value, but not arbitrary unmodeled side effects.

SE_AllowSideEffects 

Allow any unmodeled side effect.

Definition at line 631 of file Expr.h.

Constructor & Destructor Documentation

◆ Expr() [1/5]

clang::Expr::Expr ( )
delete

◆ Expr() [2/5]

clang::Expr::Expr ( const Expr )
delete

◆ Expr() [3/5]

clang::Expr::Expr ( Expr &&  )
delete

◆ Expr() [4/5]

clang::Expr::Expr ( StmtClass  SC,
QualType  T,
ExprValueKind  VK,
ExprObjectKind  OK 
)
inlineprotected

Definition at line 120 of file Expr.h.

References clang::Stmt::ExprBits, and setType().

◆ Expr() [5/5]

clang::Expr::Expr ( StmtClass  SC,
EmptyShell   
)
inlineexplicitprotected

Construct an empty expression.

Definition at line 130 of file Expr.h.

Member Function Documentation

◆ Classify()

Classification clang::Expr::Classify ( ASTContext Ctx) const
inline

Classify - Classify this expression according to the C++11 expression taxonomy.

C++11 defines ([basic.lval]) a new taxonomy of expressions to replace the old lvalue vs rvalue. This function determines the type of expression this is. There are three expression types:

  • lvalues are classical lvalues as in C++03.
  • prvalues are equivalent to rvalues in C++03.
  • xvalues are expressions yielding unnamed rvalue references, e.g. a function returning an rvalue reference. lvalues and xvalues are collectively referred to as glvalues, while prvalues and xvalues together form rvalues.

Definition at line 398 of file Expr.h.

Referenced by clang::Sema::CheckPointerToMemberOperands(), ClassifyLValue(), and isTemporaryObject().

◆ ClassifyLValue()

Expr::LValueClassification Expr::ClassifyLValue ( ASTContext Ctx) const

◆ ClassifyModifiable()

Classification clang::Expr::ClassifyModifiable ( ASTContext Ctx,
SourceLocation Loc 
) const
inline

ClassifyModifiable - Classify this expression according to the C++11 expression taxonomy, and see if it is valid on the left side of an assignment.

This function extends classify in that it also tests whether the expression is modifiable (C99 6.3.2.1p1).

Parameters
LocA source location that might be filled with a relevant location if the expression is not modifiable.

Definition at line 410 of file Expr.h.

Referenced by isModifiableLvalue().

◆ classof()

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

Definition at line 980 of file Expr.h.

References clang::Stmt::getStmtClass().

◆ containsErrors()

bool clang::Expr::containsErrors ( ) const
inline

◆ containsUnexpandedParameterPack()

bool clang::Expr::containsUnexpandedParameterPack ( ) const
inline

◆ EvaluateAsBooleanCondition()

bool Expr::EvaluateAsBooleanCondition ( bool Result,
const ASTContext Ctx,
bool  InConstantContext = false 
) const

EvaluateAsBooleanCondition - Return true if this is a constant which we can fold and convert to a boolean condition using any crazy technique that we want to, even if the expression has side-effects.

Definition at line 14729 of file ExprConstant.cpp.

References EvaluateAsRValue(), and HandleConversionToBool().

Referenced by clang::CodeGen::CGOpenMPRuntime::emitNumThreadsForTargetDirective(), FindTypeTagExpr(), getNumThreads(), and clang::CallExpr::isBuiltinAssumeFalse().

◆ EvaluateAsConstantExpr()

bool Expr::EvaluateAsConstantExpr ( EvalResult Result,
const ASTContext Ctx,
ConstantExprKind  Kind = ConstantExprKind::Normal 
) const

Evaluate an expression that is required to be a constant expression.

Does not check the syntactic constraints for C and C++98 constant expressions.

Definition at line 14821 of file ExprConstant.cpp.

References clang::QualType::addConst().

Referenced by clang::Sema::AddAnnotationAttr(), clang::computeDependence(), and EvaluateAndDiagnoseImmediateInvocation().

◆ EvaluateAsFixedPoint()

bool Expr::EvaluateAsFixedPoint ( EvalResult Result,
const ASTContext Ctx,
SideEffectsKind  AllowSideEffects = SE_NoSideEffects,
bool  InConstantContext = false 
) const

EvaluateAsFloat - Return true if this is a constant which we can fold and convert to a fixed point value.

Definition at line 14748 of file ExprConstant.cpp.

References EvaluateAsFixedPoint().

◆ EvaluateAsFloat()

bool Expr::EvaluateAsFloat ( llvm::APFloat &  Result,
const ASTContext Ctx,
SideEffectsKind  AllowSideEffects = SE_NoSideEffects,
bool  InConstantContext = false 
) 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.

Definition at line 14758 of file ExprConstant.cpp.

References EvaluateAsRValue(), and hasUnacceptableSideEffect().

◆ EvaluateAsInitializer()

bool Expr::EvaluateAsInitializer ( APValue Result,
const ASTContext Ctx,
const VarDecl VD,
SmallVectorImpl< PartialDiagnosticAt > &  Notes,
bool  IsConstantInitializer 
) const

EvaluateAsInitializer - Evaluate an expression as if it were the initializer of the given declaration.

Returns true if the initializer can be folded to a constant, and produces any relevant notes. In C++11, notes will be produced if the expression is not a constant expression.

Definition at line 14871 of file ExprConstant.cpp.

References CheckConstantExpression(), CheckMemoryLeaks(), clang::Expr::EvalStatus::Diag, EvaluateInPlace(), clang::ASTContext::getLangOpts(), clang::Decl::getLocation(), clang::ValueDecl::getType(), clang::Expr::EvalStatus::HasSideEffects, and isRecordType().

◆ EvaluateAsInt()

bool Expr::EvaluateAsInt ( EvalResult Result,
const ASTContext Ctx,
SideEffectsKind  AllowSideEffects = SE_NoSideEffects,
bool  InConstantContext = false 
) const

◆ EvaluateAsLValue()

bool Expr::EvaluateAsLValue ( EvalResult Result,
const ASTContext Ctx,
bool  InConstantContext = false 
) const

EvaluateAsLValue - Evaluate an expression to see if we can fold it to an lvalue with link time known address, with no side-effects.

Definition at line 14777 of file ExprConstant.cpp.

References CheckLValueConstantExpression(), EvaluateLValue(), and clang::ASTContext::getLValueReferenceType().

Referenced by clang::Sema::FillInlineAsmIdentifierInfo(), isConstantInitializer(), clang::CodeGen::CodeGenFunction::tryEmitAsConstant(), and clang::CodeGen::ConstantEmitter::tryEmitPrivate().

◆ EvaluateAsRValue()

bool Expr::EvaluateAsRValue ( EvalResult Result,
const ASTContext Ctx,
bool  InConstantContext = false 
) 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.

EvaluateAsRValue - Return true if this is a constant which we can fold using any crazy technique (that has nothing to do with language standards) that we want to.

If this function returns true, it returns the folded constant in Result. If the expression is a glvalue, an lvalue-to-rvalue conversion will be applied.

If this function returns true, it returns the folded constant in Result. If this expression is a glvalue, an lvalue-to-rvalue conversion will be applied to the result.

Definition at line 14720 of file ExprConstant.cpp.

References EvaluateAsRValue().

Referenced by clang::Sema::ActOnGCCAsmStmt(), clang::CodeGen::CodeGenFunction::EmitBuiltinExpr(), clang::Sema::FillInlineAsmIdentifierInfo(), GetExprRange(), clang::CodeGen::CodeGenFunction::tryEmitAsConstant(), and clang::CodeGen::ConstantEmitter::tryEmitPrivate().

◆ EvaluateForOverflow()

void Expr::EvaluateForOverflow ( const ASTContext Ctx) const

Definition at line 14998 of file ExprConstant.cpp.

References EvaluateAsRValue(), and FastEvaluateAsRValue().

◆ EvaluateKnownConstInt()

APSInt Expr::EvaluateKnownConstInt ( const ASTContext Ctx,
SmallVectorImpl< PartialDiagnosticAt > *  Diag = nullptr 
) const

◆ EvaluateKnownConstIntCheckOverflow()

APSInt Expr::EvaluateKnownConstIntCheckOverflow ( const ASTContext Ctx,
SmallVectorImpl< PartialDiagnosticAt > *  Diag = nullptr 
) const

Definition at line 14979 of file ExprConstant.cpp.

References Diag(), and EvaluateAsRValue().

◆ EvaluateWithSubstitution()

bool Expr::EvaluateWithSubstitution ( APValue Value,
ASTContext Ctx,
const FunctionDecl Callee,
ArrayRef< const Expr * >  Args,
const Expr This = nullptr 
) 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.

Returns true if the expression could be folded to a constant.

Definition at line 15576 of file ExprConstant.cpp.

◆ findBoundMemberType()

QualType Expr::findBoundMemberType ( const Expr expr)
static

Given an expression of bound-member type, find the type of the member.

Returns null if this is an overloaded bound member expression.

Definition at line 2884 of file Expr.cpp.

References clang::ast_matchers::expr, and clang::ast_matchers::type.

Referenced by clang::CallExpr::getCallReturnType().

◆ getBestDynamicClassType()

const CXXRecordDecl * Expr::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.

If this expression is a cast, this method looks through it to find the most derived decl that can be inferred from the expression. This is valid because derived-to-base conversions have undefined behavior if the object isn't dynamically of the derived type.

Definition at line 66 of file Expr.cpp.

References clang::Type::castAs(), clang::Type::getAs(), getBestDynamicClassTypeExpr(), clang::RecordType::getDecl(), clang::Type::getPointeeType(), getType(), and clang::Type::isDependentType().

◆ getBestDynamicClassTypeExpr()

const Expr * Expr::getBestDynamicClassTypeExpr ( ) const

Get the inner expression that determines the best dynamic class.

If this is a prvalue, we guarantee that it is of the most-derived type for the object itself.

Definition at line 41 of file Expr.cpp.

References IgnoreParenBaseCasts().

Referenced by getBestDynamicClassType().

◆ getDependence()

ExprDependence clang::Expr::getDependence ( ) const
inline

◆ getExprLoc()

SourceLocation Expr::getExprLoc ( ) const

getExprLoc - Return the preferred location for the arrow when diagnosing a problem with a generic expression.

Definition at line 229 of file Expr.cpp.

References clang::Stmt::getStmtClass(), and clang::Stmt::NoStmtClass.

Referenced by clang::Sema::ActOnCallExpr(), clang::Sema::ActOnCaseExpr(), clang::Sema::ActOnConditionalOp(), clang::Sema::ActOnDoStmt(), clang::Sema::ActOnExprStmt(), clang::Sema::ActOnFinishFullExpr(), clang::Sema::ActOnFinishSwitchStmt(), clang::Sema::ActOnIfStmt(), clang::Sema::ActOnOMPArraySectionExpr(), clang::Sema::ActOnOpenMPAllocatorClause(), clang::Sema::ActOnOpenMPAtomicDirective(), clang::Sema::ActOnOpenMPCopyinClause(), clang::Sema::ActOnOpenMPDeclareSimdDirective(), clang::Sema::ActOnOpenMPDependClause(), clang::Sema::ActOnOpenMPDepobjClause(), clang::Sema::ActOnOpenMPDetachClause(), clang::Sema::ActOnOpenMPInitClause(), clang::Sema::ActOnOpenMPIsDevicePtrClause(), clang::Sema::ActOnOpenMPUnrollDirective(), clang::Sema::ActOnSEHExceptBlock(), clang::Sema::AddInitializerToDecl(), clang::Sema::AddOverloadedCallCandidates(), clang::CodeGen::ApplyDebugLocation::ApplyDebugLocation(), clang::Sema::BuildAtomicExpr(), clang::Sema::BuildCXXTypeId(), clang::Sema::BuildDecltypeType(), clang::Sema::BuildInstanceMessage(), clang::Sema::BuildObjCBoxedExpr(), clang::Sema::BuildResolvedCallExpr(), clang::Sema::BuildResolvedCoawaitExpr(), clang::Sema::BuildSynthesizedThreeWayComparison(), clang::Sema::BuildTypeofExprType(), clang::Sema::BuildVectorLiteral(), clang::interp::State::CCEDiag(), clang::Sema::CheckAddressOfOperand(), clang::CodeGen::CGOpenMPRuntime::checkAndEmitLastprivateConditional(), checkCastFunctionType(), clang::Sema::CheckCompleteVariableDeclaration(), clang::Sema::CheckConstraintExpression(), clang::Sema::CheckCXXThrowOperand(), clang::Sema::checkDeclIsAllowedInOpenMPTarget(), CheckedIntArithmetic(), CheckForReference(), CheckIdentityFieldAssignment(), clang::Sema::CheckLogicalOperands(), clang::Sema::CheckLoopHintExpr(), clang::Sema::CheckLValueToRValueConversionOperand(), checkMapClauseExpressionBase(), checkMapConflicts(), checkMappableExpressionList(), clang::Sema::checkOpenMPDeclareVariantFunction(), checkOpenMPLoop(), clang::Sema::CheckPointerConversion(), clang::Sema::CheckPtrComparisonWithNullChar(), clang::Sema::CheckSingleAssignmentConstraints(), clang::Sema::CheckSubscriptingKind(), clang::Sema::CheckTemplateArgument(), clang::Sema::CheckUnaryExprOrTypeTraitOperand(), clang::Sema::completeExprArrayBound(), clang::CodeGen::CodeGenFunction::createAtExitStub(), clang::Sema::CreateBuiltinBinOp(), clang::CodeGen::CodeGenFunction::createTLSAtExitStub(), clang::Sema::CreateUnaryExprOrTypeTraitExpr(), clang::Sema::DeduceFunctionTypeFromReturnExpr(), clang::Sema::DefaultArgumentPromotion(), clang::Sema::DefaultFunctionArrayConversion(), clang::Sema::DefaultLvalueConversion(), clang::Sema::DiagnoseAlwaysNonNullPointer(), clang::Sema::DiagnoseAssignmentEnum(), DiagnoseBadFunctionCast(), DiagnoseCastOfObjCSEL(), clang::Sema::DiagnoseConditionalForNull(), DiagnoseForRangeVariableCopies(), clang::Sema::DiagnoseMultipleUserDefinedConversion(), diagnoseNoViableConversion(), clang::CodeGen::ConstantEmitter::emitAbstract(), clang::CodeGen::CodeGenFunction::emitAlignmentAssumption(), clang::CodeGen::CodeGenFunction::EmitAtomicExpr(), clang::CodeGen::CodeGenFunction::EmitBPFBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitCastLValue(), clang::CodeGen::CodeGenFunction::EmitCheckedLValue(), clang::CodeGen::CodeGenFunction::EmitCXXConstructorCall(), clang::CodeGen::CodeGenFunction::EmitCXXDestructorCall(), clang::CodeGen::CodeGenFunction::EmitCXXMemberOrOperatorCall(), clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), clang::CodeGen::CGOpenMPRuntime::emitDeclareSimdFunction(), clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(), emitDepobjElements(), emitDepobjElementsSizes(), clang::CodeGen::CGOpenMPRuntime::emitDoacrossOrdered(), clang::CodeGen::CodeGenFunction::EmitDynamicCast(), EmitGlobalVarDeclLValue(), clang::CodeGen::CodeGenFunction::EmitMaterializeTemporaryExpr(), EmitNontemporalLoad(), EmitObjectDelete(), clang::CodeGen::CodeGenFunction::EmitOMPLinearClauseInit(), clang::CodeGen::CodeGenFunction::EmitReferenceBindingToExpr(), clang::CodeGen::CodeGenFunction::emitScalarConstant(), clang::CodeGen::CodeGenFunction::EmitScalarInit(), clang::CodeGen::CodeGenFunction::EmitSynthesizedCXXCopyCtorCall(), EmitTypeidFromVTable(), EvaluateAsRValue(), EvaluateCPlusPlus11IntegralConstantExpr(), clang::CodeGen::CodeGenFunction::EvaluateExprAsBool(), clang::interp::State::FFDiag(), findSubobject(), clang::OMPArraySectionExpr::getExprLoc(), clang::CXXMemberCallExpr::getExprLoc(), clang::MSPropertySubscriptExpr::getExprLoc(), clang::OpaqueValueExpr::getExprLoc(), clang::ObjCIndirectCopyRestoreExpr::getExprLoc(), clang::ArraySubscriptExpr::getExprLoc(), clang::MatrixSubscriptExpr::getExprLoc(), clang::PseudoObjectExpr::getExprLoc(), clang::CXXRewrittenBinaryOperator::getOperatorLoc(), HandleConstructorCall(), HandleLValueArrayAdjustment(), HandleLValueComplexElement(), HandleOperatorDeleteCall(), HandleOperatorNewCall(), HasSideEffects(), clang::Sema::IgnoredValueConversions(), clang::Sema::ImpCastExprToType(), isIdenticalStmt(), isNonNegativeIntegerValue(), isUnusedResultAWarning(), clang::CodeGen::CodeGenFunction::LoadPassedObjectSize(), clang::Sema::MakeFullDiscardedValueExpr(), clang::Sema::MakeFullExpr(), clang::Sema::MaybeBindToTemporary(), NoteLValueLocation(), clang::Parser::ParseConstraintLogicalAndExpression(), clang::Sema::PerformImplicitConversion(), clang::Sema::PrepareScalarCast(), clang::Sema::RebuildExprInCurrentInstantiation(), recordConversion(), clang::Sema::RequireCompleteExprType(), clang::Sema::ResolveAddressOfOverloadedFunction(), clang::Sema::resolveAndFixAddressOfSingleOverloadCandidate(), clang::Sema::ResolveAndFixSingleFunctionTemplateSpecialization(), clang::Sema::ResolveSingleFunctionTemplateSpecialization(), rewriteToNumericBoxedExpression(), clang::Sema::TemporaryMaterializationConversion(), tryEvaluateBuiltinObjectSize(), clang::Sema::tryToRecoverWithCall(), clang::ASTNodeImporter::VisitSubstNonTypeTemplateParmExpr(), warnInvalidLock(), and clang::Sema::WarnOnPendingNoDerefs().

◆ getFPFeaturesInEffect()

FPOptions Expr::getFPFeaturesInEffect ( const LangOptions LO) const

Returns the set of floating point options that apply to this expression.

Only meaningful for operations on floating point values.

Definition at line 3678 of file Expr.cpp.

References clang::interp::Cast(), and clang::FPOptions::defaultWithoutTrailingStorage().

Referenced by clang::CodeGen::CodeGenFunction::CGFPOptionsRAII::CGFPOptionsRAII(), checkFloatingPointResult(), and getActiveRoundingMode().

◆ getIntegerConstantExpr()

Optional< llvm::APSInt > Expr::getIntegerConstantExpr ( const ASTContext Ctx,
SourceLocation Loc = nullptr,
bool  isEvaluated = true 
) const

◆ getObjCProperty()

const ObjCPropertyRefExpr * Expr::getObjCProperty ( ) const

If this expression is an l-value for an Objective C property, find the underlying property reference expression.

Definition at line 3874 of file Expr.cpp.

References getObjectKind(), IgnoreParenCasts(), isLValue(), and clang::OK_ObjCProperty.

◆ getObjectKind()

ExprObjectKind clang::Expr::getObjectKind ( ) const
inline

◆ getReferencedDeclOfCallee() [1/2]

Decl * Expr::getReferencedDeclOfCallee ( )

◆ getReferencedDeclOfCallee() [2/2]

const Decl* clang::Expr::getReferencedDeclOfCallee ( ) const
inline

Definition at line 478 of file Expr.h.

References getReferencedDeclOfCallee().

◆ getSourceBitField() [1/2]

FieldDecl * Expr::getSourceBitField ( )

If this expression refers to a bit-field, retrieve the declaration of that bit-field.

Note that this returns a non-null pointer in subtly different places than refersToBitField returns true. In particular, this can return a non-null pointer even for r-values loaded from bit-fields, but it will return null for a conditional bit-field.

Definition at line 3911 of file Expr.cpp.

References getSourceBitField(), IgnoreParens(), and clang::FieldDecl::isBitField().

Referenced by GetExprRange(), getSourceBitField(), clang::Sema::IsIntegralPromotion(), isKnownToHaveBooleanValue(), and clang::ASTContext::isPromotableBitField().

◆ getSourceBitField() [2/2]

const FieldDecl* clang::Expr::getSourceBitField ( ) const
inline

Definition at line 473 of file Expr.h.

References getSourceBitField().

◆ getType()

QualType clang::Expr::getType ( ) const
inline

Definition at line 141 of file Expr.h.

Referenced by clang::Sema::ActOnCapScopeReturnStmt(), clang::Sema::ActOnCaseExpr(), clang::Sema::ActOnChooseExpr(), clang::Sema::ActOnConditionalOp(), clang::Sema::ActOnCXXDelete(), clang::Sema::ActOnCXXNamedCast(), clang::Sema::ActOnDecltypeExpression(), clang::Sema::ActOnFinishFullExpr(), clang::Sema::ActOnFinishSwitchStmt(), clang::Sema::ActOnGCCAsmStmt(), clang::Sema::ActOnIndirectGotoStmt(), clang::Sema::ActOnNumericConstant(), clang::Sema::ActOnObjCAtSynchronizedOperand(), clang::Sema::ActOnOMPArraySectionExpr(), clang::Sema::ActOnOpenMPAtomicDirective(), clang::Sema::ActOnOpenMPDeclareSimdDirective(), clang::Sema::ActOnOpenMPDependClause(), clang::Sema::ActOnOpenMPDepobjClause(), clang::Sema::ActOnOpenMPLinearClause(), clang::Sema::ActOnOpenMPTileDirective(), clang::Sema::ActOnParenExpr(), clang::Sema::ActOnSEHExceptBlock(), clang::Sema::ActOnStartOfSwitchStmt(), clang::Sema::ActOnStmtExprResult(), clang::Sema::AddAnnotationAttr(), clang::interp::ByteCodeExprGen< Emitter >::allocateLocal(), clang::AnyCall::AnyCall(), clang::ASTContext::AtomicUsesUnsupportedLibcall(), clang::ento::ExprEngine::bindReturnValue(), clang::Sema::BuildAnonymousStructUnionMemberReference(), clang::Sema::BuildArrayType(), clang::Sema::BuildAsTypeExpr(), clang::Sema::BuildAtomicExpr(), clang::Sema::BuildBlockForLambdaConversion(), clang::Sema::BuildCallExpr(), clang::Sema::BuildCompoundLiteralExpr(), clang::Sema::BuildCoreturnStmt(), clang::Sema::BuildCoyieldExpr(), clang::Sema::BuildCXXThrow(), clang::Sema::BuildCXXTypeId(), clang::Sema::BuildCXXUuidof(), clang::Sema::BuildExpressionFromDeclTemplateArgument(), clang::Sema::BuildExpressionTrait(), buildGlobalBlock(), clang::Sema::BuildInstanceMessage(), BuildNonArrayForRange(), clang::Sema::BuildObjCAtThrowStmt(), clang::Sema::BuildObjCBoxedExpr(), clang::Sema::BuildObjCBridgedCast(), clang::Sema::BuildObjCNumericLiteral(), clang::Sema::BuildResolvedCallExpr(), clang::Sema::BuildResolvedCoawaitExpr(), clang::Sema::BuildReturnStmt(), clang::Sema::BuildSynthesizedThreeWayComparison(), clang::Sema::BuildTypeofExprType(), clang::Sema::BuildUnresolvedCoawaitExpr(), clang::Sema::BuildVAArgExpr(), clang::Sema::CallExprUnaryConversions(), CanThrow(), CastForMoving(), clang::Sema::CheckAdditionOperands(), clang::Sema::CheckAddressOfOperand(), CheckAggExprForMemSetUse(), clang::Sema::CheckAssignmentConstraints(), clang::Sema::CheckAssignmentOperands(), clang::Sema::CheckBitwiseOperands(), clang::Sema::CheckBooleanCondition(), clang::Sema::CheckCaseExpression(), clang::Sema::CheckCastAlign(), checkCastFunctionType(), clang::Sema::CheckCompareOperands(), clang::Sema::CheckConditionalOperands(), clang::Sema::CheckConstraintExpression(), CheckedIntArithmetic(), checkElementNonNil(), clang::Sema::CheckEnumConstant(), clang::Sema::CheckExceptionSpecCompatibility(), clang::Sema::checkExceptionSpecification(), clang::Sema::CheckExtVectorCast(), CheckICE(), checkIntToPointerCast(), CheckLiteralType(), clang::Sema::CheckLogicalOperands(), clang::Sema::CheckLoopHintExpr(), clang::Sema::CheckLValueToRValueConversionOperand(), checkMappableExpressionList(), clang::Sema::CheckMatrixElementwiseOperands(), clang::Sema::CheckMatrixMultiplyOperands(), clang::Sema::CheckMemberOperatorAccess(), clang::Sema::CheckMemberPointerConversion(), clang::Sema::CheckMultiplyDivideOperands(), clang::Sema::CheckObjCForCollectionOperand(), clang::Sema::checkOpenMPDeclareVariantFunction(), checkOpenMPLoop(), clang::Sema::CheckPlaceholderExpr(), clang::Sema::CheckPointerConversion(), clang::Sema::CheckPointerToMemberOperands(), clang::ento::retaincountchecker::RetainCountChecker::checkPostStmt(), clang::Sema::CheckPtrComparisonWithNullChar(), clang::Sema::CheckRemainderOperands(), clang::Sema::CheckShiftOperands(), clang::Sema::CheckSingleAssignmentConstraints(), clang::Sema::CheckStaticArrayArgument(), clang::Sema::CheckSubscriptingKind(), clang::Sema::CheckSubtractionOperands(), clang::Sema::CheckTemplateArgument(), clang::Sema::CheckTransparentUnionArgumentConstraints(), clang::Sema::CheckUnaryExprOrTypeTraitOperand(), clang::Sema::checkUnknownAnyArg(), clang::Sema::checkUnsafeExprAssigns(), clang::Sema::CheckUnusedVolatileAssignment(), clang::Sema::checkVariadicArgument(), clang::Sema::CheckVectorCompareOperands(), clang::Sema::CheckVectorConditionalTypes(), clang::Sema::CheckVectorLogicalOperands(), clang::Sema::CheckVectorOperands(), clang::interp::ByteCodeExprGen< Emitter >::classify(), ClassifyBinaryOp(), ClassifyConditional(), ClassifyExprValueKind(), ClassifyInternal(), ClassifyMemberExpr(), CollectVRQualifiers(), clang::computeDependence(), clang::SYCLUniqueStableNameExpr::ComputeName(), clang::ento::ExprEngine::computeObjectUnderConstruction(), clang::ento::SymbolManager::conjureSymbol(), clang::Sema::ConvertArgumentsForCall(), clang::CXXBindTemporaryExpr::Create(), createBinOpInfoFromIncDec(), clang::Sema::CreateBuiltinBinOp(), clang::Sema::CreateBuiltinMatrixSubscriptExpr(), clang::Sema::CreateBuiltinUnaryOp(), clang::ConstructionContext::createFromLayers(), clang::interp::Program::createGlobal(), clang::CodeGen::CodeGenModule::createOpenCLIntToSamplerConversion(), clang::Sema::CreateOverloadedBinOp(), clang::Sema::CreateOverloadedUnaryOp(), clang::Sema::CreateUnaryExprOrTypeTraitExpr(), clang::Sema::CXXCheckConditionalOperands(), clang::Sema::deduceClosureReturnType(), clang::Sema::DeduceFunctionTypeFromReturnExpr(), clang::Sema::DeduceTemplateSpecializationFromInitializer(), clang::Sema::DefaultArgumentPromotion(), clang::Sema::DefaultFunctionArrayConversion(), clang::Sema::DefaultLvalueConversion(), clang::Sema::DefaultVariadicArgumentPromotion(), clang::Sema::DefineImplicitLambdaToBlockPointerConversion(), clang::DesignatedInitUpdateExpr::DesignatedInitUpdateExpr(), clang::TypeOfExprType::desugar(), DiagnoseBadFunctionCast(), DiagnoseBinOpPrecedence(), DiagnoseCallingConvCast(), DiagnoseCastOfObjCSEL(), DiagnoseCastQual(), clang::Sema::DiagnoseConditionalForNull(), DiagnoseForRangeReferenceVariableCopies(), clang::Sema::DiagnoseMultipleUserDefinedConversion(), diagnoseMutableFields(), DiagnoseReinterpretUpDownCast(), clang::Sema::DiagnoseSelfMove(), diagnoseStringPlusChar(), diagnoseStringPlusInt(), clang::Sema::diagnoseZeroToNullptrConversion(), doRewriteToUTF8StringBoxedExpressionHelper(), clang::CodeGen::CodeGenFunction::EmitAArch64SVEBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitAggExpr(), clang::CodeGen::CodeGenFunction::EmitAggExprToLValue(), clang::CodeGen::CodeGenFunction::emitAlignmentAssumption(), clang::CodeGen::CodeGenFunction::EmitAnyExpr(), clang::CodeGen::CodeGenFunction::EmitAnyExprToExn(), clang::CodeGen::CodeGenFunction::EmitAnyExprToMem(), clang::CodeGen::CodeGenFunction::EmitAnyExprToTemp(), clang::CodeGen::CodeGenFunction::EmitARCExtendBlockObject(), clang::CodeGen::CodeGenFunction::EmitARCReclaimReturnedObject(), clang::CodeGen::CodeGenFunction::EmitARCRetainAutoreleaseScalarExpr(), clang::CodeGen::CodeGenFunction::EmitARCRetainScalarExpr(), clang::CodeGen::CodeGenFunction::EmitARCStoreStrong(), clang::CodeGen::CodeGenFunction::EmitARMMVEBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitArraySubscriptExpr(), clang::CodeGen::CodeGenFunction::EmitArrayToPointerDecay(), EmitAtomicCmpXchgForMSIntrin(), EmitAtomicDecrementValue(), clang::CodeGen::CodeGenFunction::EmitAtomicExpr(), EmitAtomicIncrementValue(), clang::CodeGen::CodeGenFunction::EmitAtomicInit(), EmitBinaryAtomicPost(), clang::CodeGen::CodeGenFunction::EmitBinaryOperatorLValue(), clang::CodeGen::CodeGenFunction::EmitBlockCallExpr(), clang::CodeGen::CodeGenFunction::EmitCallee(), clang::CodeGen::CodeGenFunction::EmitCallExpr(), clang::CodeGen::CodeGenFunction::EmitCallExprLValue(), clang::CodeGen::CodeGenFunction::EmitCastLValue(), clang::CodeGen::CodeGenFunction::EmitCheckedLValue(), EmitCheckedMixedSignMultiply(), EmitCheckedUnsignedMultiplySignedResult(), EmitCommonNeonSISDBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitComplexExpr(), clang::CodeGen::CodeGenFunction::EmitComplexExprIntoLValue(), clang::CodeGen::CodeGenFunction::EmitComplexPrePostIncDec(), clang::CodeGen::CodeGenFunction::EmitCompoundLiteralLValue(), clang::CodeGen::CodeGenFunction::EmitCXXBindTemporaryLValue(), clang::CodeGen::CodeGenFunction::EmitCXXConstructExpr(), clang::CodeGen::CodeGenFunction::EmitCXXConstructLValue(), clang::CodeGen::CodeGenFunction::EmitCXXMemberPointerCallExpr(), EmitCXXNewAllocSize(), clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), clang::CodeGen::CodeGenFunction::EmitCXXPseudoDestructorExpr(), clang::CodeGen::CodeGenFunction::EmitCXXTypeidExpr(), clang::CodeGen::CodeGenFunction::EmitCXXTypeidLValue(), clang::CodeGen::CodeGenFunction::EmitCXXUuidofExpr(), clang::CodeGen::CodeGenFunction::EmitCXXUuidofLValue(), clang::CodeGen::CGOpenMPRuntime::emitDeclareSimdFunction(), clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(), clang::CodeGen::CGOpenMPRuntime::emitDoacrossOrdered(), clang::CodeGen::CodeGenFunction::EmitDynamicCast(), clang::CodeGen::CodeGenModule::EmitExplicitCastExprType(), EmitFunctionDeclLValue(), EmitGlobalVarDeclLValue(), EmitISOVolatileLoad(), EmitISOVolatileStore(), emitLibraryCall(), clang::CodeGen::CodeGenFunction::EmitLValue(), clang::CodeGen::CodeGenFunction::EmitMaterializeTemporaryExpr(), clang::CodeGen::CodeGenFunction::EmitMatrixSubscriptExpr(), emitMaybeConstrainedFPToIntRoundBuiltin(), clang::CodeGen::CodeGenFunction::EmitMemberExpr(), clang::CodeGen::CGCXXABI::EmitMemberPointerConversion(), clang::CodeGen::CodeGenFunction::EmitMSVCBuiltinExpr(), EmitNontemporalLoad(), EmitNontemporalStore(), clang::CodeGen::CodeGenFunction::EmitNVPTXBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitObjCBoxedExpr(), clang::CodeGen::CodeGenFunction::EmitObjCCollectionLiteral(), clang::CodeGen::CodeGenFunction::EmitObjCEncodeExprLValue(), clang::CodeGen::CodeGenFunction::EmitObjCIsaExpr(), clang::CodeGen::CodeGenFunction::EmitObjCIvarRefLValue(), clang::CodeGen::CodeGenFunction::EmitObjCMessageExpr(), clang::CodeGen::CodeGenFunction::EmitObjCMessageExprLValue(), clang::CodeGen::CodeGenFunction::EmitObjCSelectorLValue(), clang::CodeGen::CodeGenFunction::EmitObjCStringLiteral(), clang::CodeGen::CodeGenFunction::EmitOMPArraySectionExpr(), emitOMPAtomicCaptureExpr(), clang::CodeGen::CodeGenFunction::EmitOMPLinearClauseInit(), emitPointerArithmetic(), clang::CodeGen::CodeGenFunction::EmitPointerToDataMemberBinaryExpr(), clang::CodeGen::CodeGenFunction::EmitPointerWithAlignment(), clang::CodeGen::CodeGenFunction::EmitReferenceBindingToExpr(), clang::Sema::EmitRelatedResultTypeNote(), clang::CodeGen::CodeGenFunction::EmitRISCVBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitScalarExpr(), clang::CodeGen::CodeGenFunction::EmitSimpleCallExpr(), clang::CodeGen::CGOpenMPRuntime::emitSingleReductionCombiner(), clang::CodeGen::CodeGenFunction::EmitStmtExprLValue(), clang::CodeGen::CodeGenFunction::EmitStringLiteralLValue(), clang::CodeGen::CodeGenFunction::EmitSVEMaskedLoad(), clang::CodeGen::CodeGenFunction::EmitSVEMaskedStore(), clang::CodeGen::CodeGenFunction::EmitSynthesizedCXXCopyCtor(), emitTaskPrivateMappingFunction(), EmitTypeidFromVTable(), clang::CodeGen::CodeGenFunction::EmitUnaryOpLValue(), clang::CodeGen::CodeGenFunction::EmitVAArg(), EmitValToTemp(), clang::CodeGen::CodeGenFunction::EmitWebAssemblyBuiltinExpr(), emitWritebackArg(), EmitX86BitTestIntrinsic(), EmitX86CvtBF16ToFloatExpr(), EvalAndBitcastToAPInt(), clang::ento::ExprEngine::evalEagerlyAssumeBinOpBifurcation(), clang::ento::ExprEngine::evalLoad(), Evaluate(), EvaluateArray(), EvaluateArrayNewConstructExpr(), EvaluateArrayNewInitList(), EvaluateAsFixedPoint(), EvaluateAsInt(), EvaluateAsRValue(), EvaluateAtomic(), EvaluateBuiltinClassifyType(), EvaluateBuiltinConstantP(), EvaluateBuiltinStrLen(), EvaluateCallArg(), EvaluateComparisonBinaryOperator(), EvaluateComplex(), EvaluateCPlusPlus11IntegralConstantExpr(), clang::CodeGen::CodeGenFunction::EvaluateExprAsBool(), EvaluateFixedPoint(), EvaluateFixedPointOrInteger(), EvaluateFloat(), EvaluateInPlace(), EvaluateIntegerOrLValue(), EvaluateLValue(), evaluateLValueAsAllocSize(), EvaluateMemberPointer(), EvaluatePointer(), EvaluateRecord(), EvaluateTemporary(), EvaluateVector(), EvaluateVoid(), ExprLooksBoolean(), FastEvaluateAsRValue(), clang::Sema::FillInlineAsmIdentifierInfo(), clang::OverloadExpr::find(), clang::Sema::FindAssociatedClassesAndNamespaces(), clang::Sema::FindCompositeObjCPointerType(), clang::Sema::FindCompositePointerType(), FindConditionalOverload(), findEnumForBlockReturn(), findWeakLValue(), finishContextualImplicitConversion(), clang::Sema::FixOverloadedFunctionReference(), clang::Sema::FormatStringHasSArg(), clang::Sema::GatherArgumentsForCall(), clang::CodeGen::CodeGenFunction::GenerateObjCAtomicGetterCopyHelperFunction(), clang::CodeGen::CodeGenFunction::generateObjCSetterBody(), clang::CodeGen::CodeGenFunction::GenerateSEHFilterFunction(), clang::CodeGen::CodeGenModule::GetAddrOfGlobalTemporary(), getAlignmentAndOffsetFromBinAddOrSub(), GetAlignOfExpr(), clang::CXXNewExpr::getAllocatedType(), clang::ArrayInitLoopExpr::getArraySize(), getBaseAlignmentAndOffsetFromLValue(), getBaseAlignmentAndOffsetFromPtr(), getBestDynamicClassType(), getBuiltinAlignArguments(), clang::ObjCMessageExpr::getCallReturnType(), clang::Sema::getCompletedType(), clang::CodeGen::CodeGenModule::GetConstantArrayFromStringLiteral(), clang::ento::SValBuilder::getConstantVal(), getCXXRecord(), clang::CXXDeleteExpr::getDestroyedType(), GetExprRange(), GetExprType(), clang::ento::CXXInstanceCall::getExtraInvalidatedValues(), clang::BlockExpr::getFunctionType(), clang::LambdaExpr::getLambdaClass(), clang::CodeGen::CGCXXABI::getMemberPointerAdjustment(), clang::CodeGen::CodeGenModule::getMemberPointerConstant(), clang::TemplateArgument::getNonTypeTemplateArgumentType(), clang::ExtVectorElementExpr::getNumElements(), GetNumNonZeroBytesInInit(), clang::CXXMemberCallExpr::getObjectType(), getObjectType(), clang::CodeGen::CGOpenCLRuntime::getPipeElemAlign(), clang::CodeGen::CGOpenCLRuntime::getPipeElemSize(), getPointerAndSize(), clang::ObjCPropertyRefExpr::getReceiverType(), clang::ObjCMessageExpr::getReceiverType(), clang::CXXMemberCallExpr::getRecordDecl(), clang::CodeGen::CodeGenFunction::ConstantEmission::getReferenceLValue(), clang::ASTContext::getReferenceQualifiedType(), GetReturnType(), clang::ento::CallEventManager::getSimpleCall(), clang::CastExpr::getTargetUnionField(), GetTypeBeforeIntegralPromotion(), clang::UnaryExprOrTypeTraitExpr::getTypeOfArgument(), clang::ASTContext::getTypeOfExprType(), clang::ento::StringRegion::getValueType(), clang::ento::ObjCStringRegion::getValueType(), clang::ento::CompoundLiteralRegion::getValueType(), clang::ento::CXXTempObjectRegion::getValueType(), clang::AtomicExpr::getValueType(), clang::Sema::getVariadicCallType(), HandleBaseToDerivedCast(), HandleDynamicCast(), clang::Sema::HandleExprEvaluationContextForTypeof(), handleIntIntBinOp(), clang::ento::ExprEngine::handleLValueBitCast(), HandleMemberPointerAccess(), HandleOperatorNewCall(), handleVectorVectorBinOp(), HasEnumType(), hasPlaceholderType(), IgnoreCommaOperand(), clang::Sema::IgnoredValueConversions(), IgnoreParenNoopCasts(), ignorePointerCastsAndParens(), clang::Sema::ImpCastExprToType(), clang::BadConversionSequence::init(), clang::Sema::InvalidLogicalVectorOperands(), clang::Sema::InvalidOperands(), clang::CXXDynamicCastExpr::isAlwaysNull(), clang::ObjCSubscriptRefExpr::isArraySubscriptRefExpr(), clang::ExtVectorElementExpr::isArrow(), isBlockPointer(), isConstantInitializer(), clang::CFGCXXRecordTypedCall::isCXXRecordTypedCall(), isFlexibleArrayMemberExpr(), isIntOrBool(), isInvalidICRSource(), isKnownToHaveBooleanValue(), isKnownToHaveUnsignedValue(), IsModifiable(), clang::BinaryOperator::isNullPointerArithmeticExtension(), isNullPointerConstant(), isNullPointerConstantForConversion(), clang::CXXTypeidExpr::isPotentiallyEvaluated(), clang::ASTContext::isPromotableBitField(), isReadIfDiscardedInCPlusPlus11(), clang::ASTContext::isSentinelNullExpr(), isShiftOverflow(), isSimpleArrayDecayOperand(), isSimpleZero(), isStdBasicOstream(), isStdSmartPtr(), clang::ento::smartptr::isStdSmartPtr(), clang::InitListExpr::isStringLiteralInit(), isTemporaryObject(), clang::InitListExpr::isTransparent(), isUnusedResultAWarning(), isValidBPFPreserveEnumValueArg(), isValidBPFPreserveFieldInfoArg(), isValidBPFPreserveTypeInfoArg(), isValidInteropVariable(), clang::AtomicExpr::isVolatile(), clang::Sema::LookupInlineAsmVarDeclField(), MakeAtomicCmpXchgValue(), MakeBinaryAtomicValue(), clang::ento::SValBuilder::makeBoolVal(), clang::ento::SValBuilder::makeIntVal(), makeTailCallIfSwiftAsync(), maybeAdjustInterfaceForSubscriptingCheck(), clang::Sema::MaybeBindToTemporary(), clang::Sema::maybeExtendBlockObject(), needsConversionOfHalfVec(), clang::Sema::NoteAllOverloadCandidates(), ObjCEnumerationCollection(), objectifyExpr(), clang::ento::ConditionBRVisitor::patternMatch(), peelOffPointerArithmetic(), clang::Sema::PerformContextualImplicitConversion(), clang::Sema::PerformContextuallyConvertToBool(), clang::Sema::PerformImplicitConversion(), clang::Sema::PerformQualificationConversion(), clang::Sema::PrepareCastToObjCObjectPointer(), clang::Sema::PrepareScalarCast(), clang::Sema::prepareVectorSplat(), clang::ento::ConditionBRVisitor::printValue(), processArgument(), clang::ento::retaincountchecker::RetainCountChecker::processObjCLiterals(), clang::ento::ExprEngine::processSwitch(), clang::ento::ExprEngine::ProcessTemporaryDtor(), pushTemporaryCleanup(), clang::TreeTransform< Derived >::RebuildCXXForRangeStmt(), clang::TreeTransform< Derived >::RebuildCXXOperatorCallExpr(), clang::TreeTransform< Derived >::RebuildObjCIsaExpr(), clang::TreeTransform< Derived >::RebuildObjCIvarRefExpr(), clang::TreeTransform< Derived >::RebuildObjCMessageExpr(), clang::TreeTransform< Derived >::RebuildObjCPropertyRefExpr(), clang::Sema::recreateSyntacticForm(), clang::Sema::RefersToMemberWithReducedAlignment(), refersToVectorElement(), clang::interp::InterpState::reportOverflow(), clang::Sema::ResolveAddressOfOverloadedFunction(), clang::Sema::resolveAndFixAddressOfSingleOverloadCandidate(), clang::Sema::ResolveAndFixSingleFunctionTemplateSpecialization(), rewriteBuiltinFunctionDecl(), rewriteToNumberLiteral(), rewriteToNumericBoxedExpression(), clang::Sema::SemaBuiltinShuffleVector(), clang::Sema::SemaConvertVectorExpr(), clang::DeclRefExpr::setDecl(), clang::BadConversionSequence::setFromExpr(), clang::MemberExpr::setMemberDecl(), setObjCGCLValueClass(), shouldEmitSeparateBlockRetain(), shouldExtendReceiverForInnerPointerMessage(), skipRValueSubobjectAdjustments(), clang::Sema::stripARCUnbridgedCast(), suppressReport(), clang::Sema::TemporaryMaterializationConversion(), TryAddressSpaceCast(), TryClassUnification(), TryConstCast(), tryEmitARCCopyWeakInit(), tryEmitARCRetainLoadOfScalar(), clang::CodeGen::CodeGenFunction::tryEmitAsConstant(), clang::CodeGen::ConstantEmitter::tryEmitPrivate(), tryEmitSpecializedAllocInit(), clang::Sema::tryExprAsCall(), TryLValueToRValueCast(), TryReinterpretCast(), TryStaticCast(), TryStaticMemberPointerUpcast(), TryStaticReferenceDowncast(), tryToConvertMemberExprToDeclRefExpr(), clang::Sema::UsualArithmeticConversions(), clang::Sema::UsualUnaryConversions(), clang::ASTNodeImporter::VisitAddrLabelExpr(), clang::ASTNodeImporter::VisitArrayInitIndexExpr(), clang::ASTNodeImporter::VisitArrayInitLoopExpr(), clang::ento::ExprEngine::VisitArraySubscriptExpr(), clang::ASTNodeImporter::VisitArraySubscriptExpr(), clang::ASTNodeImporter::VisitArrayTypeTraitExpr(), clang::ASTNodeImporter::VisitAtomicExpr(), clang::ASTNodeImporter::VisitBinaryConditionalOperator(), clang::interp::ByteCodeExprGen< Emitter >::VisitBinaryOperator(), clang::ASTNodeImporter::VisitBinaryOperator(), clang::ento::ExprEngine::VisitBlockExpr(), clang::interp::ByteCodeExprGen< Emitter >::visitBool(), clang::ASTNodeImporter::VisitCallExpr(), clang::ento::ExprEngine::VisitCast(), clang::ASTNodeImporter::VisitCharacterLiteral(), clang::ASTNodeImporter::VisitChooseExpr(), clang::ASTNodeImporter::VisitCompoundAssignOperator(), clang::ASTNodeImporter::VisitCompoundLiteralExpr(), clang::ASTNodeImporter::VisitConditionalOperator(), clang::JSONNodeDumper::VisitConstantExpr(), clang::ASTNodeImporter::VisitCXXBoolLiteralExpr(), clang::ASTNodeImporter::VisitCXXConstructExpr(), clang::ASTNodeImporter::VisitCXXDeleteExpr(), clang::ASTNodeImporter::VisitCXXDependentScopeMemberExpr(), clang::ASTNodeImporter::VisitCXXFoldExpr(), clang::ASTNodeImporter::VisitCXXInheritedCtorInitExpr(), clang::ASTNodeImporter::VisitCXXMemberCallExpr(), clang::ASTNodeImporter::VisitCXXNamedCastExpr(), clang::ento::ExprEngine::VisitCXXNewExpr(), clang::ASTNodeImporter::VisitCXXNewExpr(), clang::ASTNodeImporter::VisitCXXNoexceptExpr(), clang::ASTNodeImporter::VisitCXXNullPtrLiteralExpr(), clang::ASTNodeImporter::VisitCXXScalarValueInitExpr(), clang::ASTNodeImporter::VisitCXXStdInitializerListExpr(), clang::ASTNodeImporter::VisitCXXTemporaryObjectExpr(), clang::ento::ExprEngine::VisitCXXThisExpr(), clang::ASTNodeImporter::VisitCXXThisExpr(), clang::ASTNodeImporter::VisitCXXThrowExpr(), clang::ASTNodeImporter::VisitCXXTypeidExpr(), clang::JSONNodeDumper::VisitCXXUnresolvedConstructExpr(), clang::ASTNodeImporter::VisitCXXUnresolvedConstructExpr(), clang::ASTNodeImporter::VisitDeclRefExpr(), clang::ASTNodeImporter::VisitExplicitCastExpr(), clang::ASTNodeImporter::VisitExpressionTraitExpr(), clang::ASTNodeImporter::VisitFixedPointLiteral(), clang::ASTNodeImporter::VisitFloatingLiteral(), clang::ASTNodeTraverser< ASTDumper, TextNodeDumper >::VisitGenericSelectionExpr(), clang::ASTNodeImporter::VisitGNUNullExpr(), clang::ASTNodeImporter::VisitImaginaryLiteral(), clang::ASTNodeImporter::VisitImplicitCastExpr(), clang::ASTNodeImporter::VisitImplicitValueInitExpr(), clang::ento::ExprEngine::VisitInitListExpr(), clang::ASTNodeImporter::VisitInitListExpr(), clang::JSONNodeDumper::VisitIntegerLiteral(), clang::ASTNodeImporter::VisitIntegerLiteral(), visitLocalsRetainedByInitializer(), clang::ento::ExprEngine::VisitLogicalExpr(), clang::ASTNodeImporter::VisitMaterializeTemporaryExpr(), clang::ento::ExprEngine::VisitMemberExpr(), clang::ASTNodeImporter::VisitMemberExpr(), clang::JSONNodeDumper::VisitObjCMessageExpr(), clang::ASTNodeImporter::VisitOffsetOfExpr(), clang::ASTNodeImporter::VisitOpaqueValueExpr(), clang::ASTNodeImporter::VisitPackExpansionExpr(), clang::ASTNodeImporter::VisitPredefinedExpr(), clang::ASTNodeImporter::VisitStmtExpr(), clang::ASTNodeImporter::VisitStringLiteral(), clang::ASTNodeImporter::VisitSubstNonTypeTemplateParmExpr(), clang::ASTNodeImporter::VisitTypeTraitExpr(), clang::ento::ExprEngine::VisitUnaryExprOrTypeTraitExpr(), clang::ASTNodeImporter::VisitUnaryExprOrTypeTraitExpr(), clang::ento::ExprEngine::VisitUnaryOperator(), clang::ASTNodeImporter::VisitUnaryOperator(), clang::ASTNodeImporter::VisitUnresolvedMemberExpr(), clang::ASTNodeImporter::VisitVAArgExpr(), clang::TextNodeDumper::VisitVarDecl(), and widenIterationCount().

◆ getValueKind()

ExprValueKind clang::Expr::getValueKind ( ) const
inline

getValueKind - The value kind that this expression produces.

Definition at line 430 of file Expr.h.

References clang::Stmt::ExprBits.

Referenced by clang::Sema::ActOnChooseExpr(), clang::Sema::ActOnConditionalOp(), clang::Sema::BuildCallExpr(), clang::Sema::BuildCXXTypeId(), clang::Sema::BuildExpressionFromDeclTemplateArgument(), clang::Sema::BuildSynthesizedThreeWayComparison(), clang::Sema::CheckPointerToMemberOperands(), clang::Sema::checkUnknownAnyCast(), ClassifyInternal(), clang::Sema::CreateBuiltinBinOp(), clang::Sema::CreateBuiltinUnaryOp(), clang::Sema::CXXCheckConditionalOperands(), clang::Sema::FixOverloadedFunctionReference(), clang::ASTContext::getReferenceQualifiedType(), isGLValue(), isLValue(), isPRValue(), isXValue(), clang::Sema::PerformImplicitConversion(), removeLValueToRValueCast(), clang::Sema::stripARCUnbridgedCast(), tryToConvertMemberExprToDeclRefExpr(), clang::ASTNodeImporter::VisitArraySubscriptExpr(), clang::ASTNodeImporter::VisitBinaryConditionalOperator(), clang::ASTNodeImporter::VisitBinaryOperator(), clang::ASTNodeImporter::VisitCallExpr(), clang::ASTNodeImporter::VisitChooseExpr(), clang::ASTNodeImporter::VisitCompoundAssignOperator(), clang::ASTNodeImporter::VisitCompoundLiteralExpr(), clang::ASTNodeImporter::VisitConditionalOperator(), clang::ASTNodeImporter::VisitCXXMemberCallExpr(), clang::ASTNodeImporter::VisitCXXNamedCastExpr(), clang::ASTNodeImporter::VisitDeclRefExpr(), clang::ASTNodeImporter::VisitExplicitCastExpr(), clang::ASTNodeImporter::VisitImplicitCastExpr(), clang::ASTNodeImporter::VisitMemberExpr(), clang::ASTNodeImporter::VisitOpaqueValueExpr(), clang::ASTNodeImporter::VisitSubstNonTypeTemplateParmExpr(), and clang::ASTNodeImporter::VisitUnaryOperator().

◆ getValueKindForType()

static ExprValueKind clang::Expr::getValueKindForType ( QualType  T)
inlinestatic

◆ hasAnyTypeDependentArguments()

bool Expr::hasAnyTypeDependentArguments ( ArrayRef< Expr * >  Exprs)
static

hasAnyTypeDependentArguments - Determines if any of the expressions in Exprs is type-dependent.

Definition at line 3148 of file Expr.cpp.

References isTypeDependent().

Referenced by clang::Sema::BuildCallExpr(), clang::Sema::BuildCXXTypeConstructExpr(), and clang::Sema::DeduceTemplateSpecializationFromInitializer().

◆ hasNonTrivialCall()

bool Expr::hasNonTrivialCall ( const ASTContext Ctx) const

Determine whether this expression involves a call to any function that is not trivial.

Definition at line 3738 of file Expr.cpp.

Referenced by isTrivial().

◆ hasPlaceholderType() [1/2]

bool clang::Expr::hasPlaceholderType ( ) const
inline

◆ hasPlaceholderType() [2/2]

bool clang::Expr::hasPlaceholderType ( BuiltinType::Kind  K) const
inline

Returns whether this expression has a specific placeholder type.

Definition at line 507 of file Expr.h.

References getType(), and clang::BuiltinType::isPlaceholderTypeKind().

◆ HasSideEffects()

bool Expr::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.

Example is a function call, volatile variable read, or throwing an exception. If IncludePossibleEffects is false, this call treats certain expressions with potential side effects (such as function call-like expressions, instantiation-dependent expressions, or invocations from a macro) as not having side effects.

Definition at line 3392 of file Expr.cpp.

References getExprLoc(), clang::Stmt::getStmtClass(), clang::Decl::hasAttr(), and clang::Stmt::NoStmtClass.

Referenced by clang::Sema::BuildCXXTypeId(), clang::Sema::BuildDecltypeType(), clang::Sema::CheckUnaryExprOrTypeTraitOperand(), clang::arcmt::trans::hasSideEffects(), isIdenticalStmt(), isSimpleZero(), and isTrivial().

◆ IgnoreCasts() [1/2]

const Expr* clang::Expr::IgnoreCasts ( ) const
inline

Definition at line 831 of file Expr.h.

References IgnoreCasts().

◆ IgnoreCasts() [2/2]

Expr * Expr::IgnoreCasts ( )

Skip past any casts which might surround this expression until reaching a fixed point.

Skips:

Definition at line 2912 of file Expr.cpp.

References clang::IgnoreCastsSingleStep(), and clang::IgnoreExprNodes().

Referenced by getBlockExpr(), and IgnoreCasts().

◆ IgnoreConversionOperatorSingleStep() [1/2]

const Expr* clang::Expr::IgnoreConversionOperatorSingleStep ( ) const
inline

Definition at line 893 of file Expr.h.

References IgnoreConversionOperatorSingleStep().

◆ IgnoreConversionOperatorSingleStep() [2/2]

Expr * Expr::IgnoreConversionOperatorSingleStep ( )

Skip conversion operators.

If this Expr is a call to a conversion operator, return the argument.

Definition at line 2937 of file Expr.cpp.

Referenced by IgnoreConversionOperatorSingleStep(), and IsArithmeticBinaryExpr().

◆ IgnoreImpCasts() [1/2]

const Expr* clang::Expr::IgnoreImpCasts ( ) const
inline

Definition at line 820 of file Expr.h.

References IgnoreImpCasts().

◆ IgnoreImpCasts() [2/2]

Expr * Expr::IgnoreImpCasts ( )

◆ IgnoreImplicit() [1/2]

const Expr* clang::Expr::IgnoreImplicit ( ) const
inline

Definition at line 841 of file Expr.h.

References IgnoreImplicit().

◆ IgnoreImplicit() [2/2]

Expr * Expr::IgnoreImplicit ( )

◆ IgnoreImplicitAsWritten() [1/2]

const Expr* clang::Expr::IgnoreImplicitAsWritten ( ) const
inline

Definition at line 851 of file Expr.h.

References IgnoreImplicitAsWritten().

◆ IgnoreImplicitAsWritten() [2/2]

Expr * Expr::IgnoreImplicitAsWritten ( )

Skip past any implicit AST nodes which might surround this expression until reaching a fixed point.

Same as IgnoreImplicit, except that it also skips over implicit calls to constructors and conversion functions.

FIXME: Should IgnoreImplicit do this?

Definition at line 2920 of file Expr.cpp.

References clang::IgnoreExprNodes(), and clang::IgnoreImplicitAsWrittenSingleStep().

Referenced by IgnoreImplicitAsWritten().

◆ IgnoreParenBaseCasts() [1/2]

const Expr* clang::Expr::IgnoreParenBaseCasts ( ) const
inline

Definition at line 927 of file Expr.h.

References IgnoreParenBaseCasts().

◆ IgnoreParenBaseCasts() [2/2]

Expr * Expr::IgnoreParenBaseCasts ( )

Skip past any parentheses and derived-to-base casts until reaching a fixed point.

Skips:

  • What IgnoreParens() skips
  • CastExpr which represent a derived-to-base cast (CK_DerivedToBase, CK_UncheckedDerivedToBase and CK_NoOp)

Definition at line 2950 of file Expr.cpp.

References clang::IgnoreBaseCastsSingleStep(), clang::IgnoreExprNodes(), and clang::IgnoreParensSingleStep().

Referenced by getBestDynamicClassTypeExpr(), clang::ento::CXXInstanceCall::getExtraInvalidatedValues(), and IgnoreParenBaseCasts().

◆ IgnoreParenCasts() [1/2]

const Expr* clang::Expr::IgnoreParenCasts ( ) const
inline

Definition at line 886 of file Expr.h.

References IgnoreParenCasts().

◆ IgnoreParenCasts() [2/2]

Expr * Expr::IgnoreParenCasts ( )

Skip past any parentheses and casts which might surround this expression until reaching a fixed point.

Skips:

Definition at line 2933 of file Expr.cpp.

References clang::IgnoreCastsSingleStep(), clang::IgnoreExprNodes(), and clang::IgnoreParensSingleStep().

Referenced by clang::Sema::ActOnFinishSwitchStmt(), clang::Sema::ActOnOpenMPDependClause(), clang::Sema::CheckAdditionOperands(), clang::Sema::CheckAssignmentOperands(), CheckICE(), checkMappableExpressionList(), clang::Sema::CheckStaticArrayArgument(), clang::Sema::checkStringLiteralArgumentAttr(), clang::Sema::CheckSubtractionOperands(), clang::analyze_os_log::computeOSLogBufferLayout(), clang::Sema::CreateBuiltinBinOp(), clang::Sema::DefaultFunctionArrayConversion(), clang::Sema::DefaultLvalueConversion(), clang::Sema::DiagnoseAssignmentAsCondition(), clang::CodeGen::CodeGenFunction::emitBuiltinOSLogFormat(), FindTypeTagExpr(), getDeclFromThisExpr(), getDirectCallExpr(), getNSArrayObjects(), getObjCProperty(), clang::arcmt::trans::hasSideEffects(), ignoreLiteralAdditions(), IgnoreParenCasts(), isCalleeArrow(), isCapturedBy(), isEnableIf(), clang::arcmt::trans::isGlobalVar(), clang::BinaryOperator::isNullPointerArithmeticExtension(), clang::arcmt::trans::isPlusOne(), clang::ASTContext::isSentinelNullExpr(), isTrivialExpression(), LookThroughTransitiveAssignmentsAndCommaOperators(), clang::sema::FunctionScopeInfo::markSafeWeakUse(), maybeAdjustInterfaceForSubscriptingCheck(), clang::ento::ConditionBRVisitor::patternMatch(), peelOffOuterExpr(), clang::TreeTransform< Derived >::RebuildCXXOperatorCallExpr(), REGISTER_MAP_WITH_PROGRAMSTATE(), tryEmitSpecializedAllocInit(), UseNSOptionsMacro(), StoreSiteFinder::VisitNode(), and clang::ento::ConditionBRVisitor::VisitTrueTest().

◆ IgnoreParenImpCasts() [1/2]

const Expr* clang::Expr::IgnoreParenImpCasts ( ) const
inline

Definition at line 877 of file Expr.h.

References IgnoreParenImpCasts().

◆ IgnoreParenImpCasts() [2/2]

Expr * Expr::IgnoreParenImpCasts ( )

Skip past any parentheses and implicit casts which might surround this expression until reaching a fixed point.

FIXME: IgnoreParenImpCasts really ought to be equivalent to IgnoreParens() + IgnoreImpCasts() until reaching a fixed point. However this is currently not the case. Instead IgnoreParenImpCasts() skips:

Definition at line 2928 of file Expr.cpp.

References clang::IgnoreExprNodes(), clang::IgnoreImplicitCastsExtraSingleStep(), and clang::IgnoreParensSingleStep().

Referenced by clang::Sema::ActOnOpenMPAffinityClause(), clang::Sema::ActOnOpenMPAtomicDirective(), clang::Sema::ActOnOpenMPDeclareSimdDirective(), clang::Sema::ActOnOpenMPDependClause(), clang::Sema::ActOnOpenMPDetachClause(), clang::tooling::buildArrow(), clang::tooling::buildDot(), clang::Sema::CheckConstraintExpression(), clang::Sema::CheckConversionToObjCLiteral(), clang::Sema::CheckFloatComparison(), checkForLiteralCreation(), CheckForReference(), CheckICE(), clang::Sema::CheckLiteralKind(), checkOMPArraySectionConstantForReduction(), clang::Sema::checkOpenMPDeclareVariantFunction(), clang::Sema::CheckPlaceholderExpr(), clang::Sema::CheckShadowingDeclModification(), clang::Sema::CheckSubscriptingKind(), clang::Sema::CheckTemplateArgument(), clang::Sema::CheckUnusedVolatileAssignment(), ClassifyConditional(), ClassifyMemberExpr(), collectConjunctionTerms(), clang::Sema::CXXCheckConditionalOperands(), DiagnoseCallingConvCast(), clang::Sema::DiagnoseConditionalForNull(), clang::Sema::DiagnoseSelfMove(), clang::Sema::diagnoseZeroToNullptrConversion(), doesExprLikelyComputeSize(), clang::CodeGen::CGOpenMPRuntime::emitDeclareSimdFunction(), emitDependData(), emitDepobjElements(), emitDepobjElementsSizes(), emitInitWithReductionInitializer(), clang::CodeGen::CodeGenFunction::EmitOMPArraySectionExpr(), clang::Sema::EmitRelatedResultTypeNote(), clang::Sema::EndOpenMPDSABlock(), ExprLooksBoolean(), clang::Sema::findFailedBooleanCondition(), FindTypeTagExpr(), getBaseDecl(), clang::Sema::getMessageSendResultType(), getPointerAndSize(), getReferencedDeclOfCallee(), getSizeOfExprArg(), hasRecursiveCallInPath(), IgnoreParenImpCasts(), IgnoreUnlessSpelledInSource(), isEnumConstant(), isKnownToHaveUnsignedValue(), isObjCObjectLiteral(), isObjCSelfExpr(), isSameComparisonOperand(), clang::CodeGen::CodeGenFunction::LoadPassedObjectSize(), lookThroughRangesV3Condition(), clang::ento::ExprEngine::processSwitch(), refersToGlobalRegisterVar(), clang::Sema::RefersToMemberWithReducedAlignment(), clang::edit::rewriteObjCRedundantCallWithLiteral(), rewriteToNumberLiteral(), stripCastsAndSugar(), and tryTransformToIntOrEnumConstant().

◆ IgnoreParenLValueCasts() [1/2]

const Expr* clang::Expr::IgnoreParenLValueCasts ( ) const
inline

Definition at line 906 of file Expr.h.

References IgnoreParenLValueCasts().

◆ IgnoreParenLValueCasts() [2/2]

Expr * Expr::IgnoreParenLValueCasts ( )

Skip past any parentheses and lvalue casts which might surround this expression until reaching a fixed point.

Skips:

  • What IgnoreParens() skips
  • What IgnoreCasts() skips, except that only lvalue-to-rvalue casts are skipped FIXME: This is intended purely as a temporary workaround for code that hasn't yet been rewritten to do the right thing about those casts, and may disappear along with the last internal use.

Definition at line 2945 of file Expr.cpp.

References clang::IgnoreExprNodes(), clang::IgnoreLValueCastsSingleStep(), and clang::IgnoreParensSingleStep().

Referenced by checkMappableExpressionList(), IgnoreParenLValueCasts(), and clang::Sema::isSelfExpr().

◆ IgnoreParenNoopCasts() [1/2]

const Expr* clang::Expr::IgnoreParenNoopCasts ( const ASTContext Ctx) const
inline

Definition at line 917 of file Expr.h.

References IgnoreParenNoopCasts().

◆ IgnoreParenNoopCasts() [2/2]

Expr * Expr::IgnoreParenNoopCasts ( const ASTContext Ctx)

◆ IgnoreParens() [1/2]

const Expr* clang::Expr::IgnoreParens ( ) const
inline

Definition at line 863 of file Expr.h.

References IgnoreParens().

◆ IgnoreParens() [2/2]

Expr * Expr::IgnoreParens ( )

Skip past any parentheses which might surround this expression until reaching a fixed point.

Skips:

Definition at line 2924 of file Expr.cpp.

References clang::IgnoreExprNodes(), and clang::IgnoreParensSingleStep().

Referenced by clang::Sema::AddInitializerToDecl(), clang::Sema::BuildCallExpr(), clang::Sema::BuildObjCBoxedExpr(), clang::Sema::CheckAddressOfOperand(), checkMapClauseExpressionBase(), checkMappableExpressionList(), clang::Sema::CheckPlaceholderExpr(), clang::Sema::CheckPointerToMemberOperands(), clang::Sema::checkPseudoObjectIncDec(), clang::Sema::checkPseudoObjectRValue(), clang::Sema::CheckUnaryExprOrTypeTraitOperand(), clang::Sema::checkUnsafeExprAssigns(), clang::Sema::CheckVecStepExpr(), ClassifyInternal(), ClassifyMemberExpr(), clang::Sema::completeExprArrayBound(), clang::computeDependence(), clang::Sema::CreateBuiltinBinOp(), clang::ento::ExprEngine::CreateCXXTemporaryObject(), clang::Sema::diagnoseARCUnbridgedCast(), clang::Sema::DiagnoseEqualityWithExtraParens(), clang::Sema::DiscardMisalignedMemberAddress(), DoMarkVarDeclReferenced(), doRewriteToUTF8StringBoxedExpressionHelper(), clang::CodeGen::CodeGenFunction::EmitBPFBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitBranchOnBoolExpr(), clang::CodeGen::CodeGenFunction::EmitCallee(), clang::CodeGen::CodeGenFunction::EmitConditionalOperatorLValue(), clang::CodeGen::CodeGenFunction::EmitCXXMemberCallExpr(), clang::CodeGen::CodeGenFunction::EmitCXXMemberPointerCallExpr(), clang::CodeGen::CodeGenFunction::EmitPointerWithAlignment(), clang::OverloadExpr::find(), findEnumForBlockReturn(), findWeakLValue(), GetAlignOfExpr(), getBaseAlignmentAndOffsetFromLValue(), getBaseAlignmentAndOffsetFromPtr(), clang::ento::SValBuilder::getConstantVal(), getExprAsWritten(), GetExprRange(), clang::CXXMemberCallExpr::getImplicitObjectArgument(), clang::CFGBlock::getLastCondition(), clang::CXXMemberCallExpr::getMethodDecl(), clang::Sema::getNamedReturnInfo(), getSourceBitField(), clang::CFGBlock::getTerminatorCondition(), IgnoreCommaOperand(), IgnoreParens(), ignorePointerCastsAndParens(), ignoreTransparentExprs(), isBlockVarRef(), isCheapEnoughToEvaluateUnconditionally(), isFlexibleArrayMemberExpr(), isGLValueFromPointerDeref(), IsIntegerLiteralConstantExpr(), isInvalidICRSource(), isKnownToHaveBooleanValue(), IsModifiable(), isOBJCGCCandidate(), isParenthesizedADLCallee(), isReadIfDiscardedInCPlusPlus11(), isSameComparisonOperand(), isSimpleZero(), clang::Sema::IsStringLiteralToNonConstPointerConversion(), isUnusedResultAWarning(), isValidBPFPreserveEnumValueArg(), isValidBPFPreserveFieldInfoArg(), isValidBPFPreserveTypeInfoArg(), LookThroughExpr(), maybeGetUnaryAddrOfOperand(), refersToVectorElement(), shouldEmitSeparateBlockRetain(), shouldExtendReceiverForInnerPointerMessage(), clang::CodeGen::CodeGenFunction::ShouldNullCheckClassCastValue(), skipRValueSubobjectAdjustments(), skipTemporaryBindingsNoOpCastsAndParens(), tryEmitARCCopyWeakInit(), tryEmitARCRetainLoadOfScalar(), clang::Sema::tryExprAsCall(), tryTransformToIntOrEnumConstant(), clang::ento::ExprEngine::VisitArraySubscriptExpr(), clang::ento::ExprEngine::VisitBinaryOperator(), clang::ento::ExprEngine::VisitGuardedExpr(), and clang::ento::ConditionBRVisitor::VisitTerminator().

◆ IgnoreUnlessSpelledInSource() [1/2]

Expr * Expr::IgnoreUnlessSpelledInSource ( )

◆ IgnoreUnlessSpelledInSource() [2/2]

const Expr* clang::Expr::IgnoreUnlessSpelledInSource ( ) const
inline

Definition at line 811 of file Expr.h.

References IgnoreUnlessSpelledInSource().

◆ isBoundMemberFunction()

bool Expr::isBoundMemberFunction ( ASTContext Ctx) const

Returns true if this expression is a bound member function.

Definition at line 2878 of file Expr.cpp.

References ClassifyLValue(), isTypeDependent(), and LV_MemberFunction.

◆ isConstantInitializer()

bool Expr::isConstantInitializer ( ASTContext Ctx,
bool  ForRef,
const Expr **  Culprit = nullptr 
) const

◆ isCXX11ConstantExpr()

bool Expr::isCXX11ConstantExpr ( const ASTContext Ctx,
APValue Result = nullptr,
SourceLocation Loc = nullptr 
) const

isCXX11ConstantExpr - Return true if this expression is a constant expression in C++11.

Can only be used in C++.

Note: This does not perform the implicit conversions required by C++11 [expr.const]p5.

Definition at line 15543 of file ExprConstant.cpp.

References clang::ASTContext::getLangOpts().

Referenced by EvaluateCPlusPlus11IntegralConstantExpr().

◆ isCXX98IntegralConstantExpr()

bool Expr::isCXX98IntegralConstantExpr ( const ASTContext Ctx) const

isCXX98IntegralConstantExpr - Return true if this expression is an integral constant expression in C++98.

Can only be used in C++.

Definition at line 15536 of file ExprConstant.cpp.

References CheckICE().

Referenced by isNullPointerConstant().

◆ isDefaultArgument()

bool Expr::isDefaultArgument ( ) const

Determine whether this expression is a default function argument.

Default arguments are implicitly generated in the abstract syntax tree by semantic analysis for function calls, object constructions, etc. in C++. Default arguments are represented by CXXDefaultArgExpr nodes; this routine also looks through any implicit casts to determine whether the expression is a default argument.

Definition at line 3023 of file Expr.cpp.

Referenced by clang::TreeTransform< Derived >::DropCallArgument(), and clang::CXXConstructExpr::getEndLoc().

◆ isEvaluatable()

bool Expr::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.

isEvaluatable - Call EvaluateAsRValue to see if this expression can be constant folded, but discard the result.

Definition at line 14952 of file ExprConstant.cpp.

References EvaluateAsRValue(), and hasUnacceptableSideEffect().

Referenced by clang::Sema::ActOnGCCAsmStmt(), isCheapEnoughToEvaluateUnconditionally(), isConstantInitializer(), and isTrivial().

◆ isGLValue()

bool clang::Expr::isGLValue ( ) const
inline

◆ isImplicitCXXThis()

bool Expr::isImplicitCXXThis ( ) const

Whether this expression is an implicit reference to 'this' in C++.

Definition at line 3104 of file Expr.cpp.

References Paren, and clang::interp::This().

Referenced by clang::tooling::buildAddressOf(), clang::MSPropertyRefExpr::isImplicitAccess(), clang::MemberExpr::isImplicitAccess(), and clang::UnresolvedMemberExpr::isImplicitAccess().

◆ isInstantiationDependent()

bool clang::Expr::isInstantiationDependent ( ) const
inline

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)
  • or an error

In the following example, the expression sizeof(sizeof(T() + T())) is instantiation-dependent (since it involves a template parameter T), but is neither type- nor value-dependent, since the type of the inner sizeof is known (std::size_t) and therefore the size of the outer sizeof is known.

template<typename T>
void f(T x, T y) {
sizeof(sizeof(T() + T());
}
void func(int) {
func(); // the expression is instantiation-dependent, because it depends
// on an error.
}

Definition at line 214 of file Expr.h.

References getDependence().

Referenced by clang::Sema::ActOnOpenMPAtomicDirective(), clang::Sema::ActOnOpenMPCriticalDirective(), clang::Sema::ActOnOpenMPDeclareSimdDirective(), clang::Sema::ActOnOpenMPDepobjClause(), clang::Sema::ActOnOpenMPDetachClause(), clang::Sema::ActOnOpenMPDistScheduleClause(), clang::Sema::ActOnOpenMPInitClause(), clang::Sema::ActOnOpenMPLinearClause(), clang::Sema::ActOnOpenMPScheduleClause(), clang::Sema::BuildDecltypeType(), clang::Sema::BuildExtIntType(), clang::Sema::BuildNestedRequirement(), canonicalizeImmediatelyDeclaredConstraint(), clang::Sema::checkAndRewriteMustTailAttr(), clang::Sema::CheckFunctionConstraints(), checkMappableExpressionList(), clang::Sema::checkOpenMPDeclareVariantFunction(), clang::Sema::CheckUnaryExprOrTypeTraitOperand(), clang::Sema::CorrectDelayedTyposInExpr(), clang::ASTContext::getConstantArrayType(), clang::ASTContext::getDecltypeType(), clang::ASTContext::getDependentAddressSpaceType(), clang::ASTContext::getDependentExtIntType(), isNonNegativeIntegerValue(), clang::DecltypeType::isSugared(), isValidInteropVariable(), and clang::concepts::NestedRequirement::NestedRequirement().

◆ isIntegerConstantExpr()

bool Expr::isIntegerConstantExpr ( const ASTContext Ctx,
SourceLocation Loc = nullptr 
) const

◆ isKnownToHaveBooleanValue()

bool Expr::isKnownToHaveBooleanValue ( bool  Semantic = true) const

isKnownToHaveBooleanValue - Return true if this is an integer expression that is known to return 0 or 1.

This happens for _Bool/bool expressions but also int expressions which are produced by things like comparisons in C.

Parameters
SemanticIf true, only return true for expressions that are known to be semantically boolean, which might not be true even for expressions that are known to evaluate to 0/1. For instance, reading an unsigned bit-field with width '1' will evaluate to 0/1, but doesn't necessarily semantically correspond to a bool.

Definition at line 135 of file Expr.cpp.

References getSourceBitField(), getType(), IgnoreParens(), clang::Type::isBooleanType(), and clang::Type::isIntegralOrEnumerationType().

Referenced by clang::Sema::ActOnStartOfSwitchStmt().

◆ isLValue()

bool clang::Expr::isLValue ( ) const
inline

isLValue - True if this expression is an "l-value" according to the rules of the current language.

C and C++ give somewhat different rules for this concept, but in general, the result of an l-value expression identifies a specific object whereas the result of an r-value expression is a value detached from any specific storage.

C++11 divides the concept of "r-value" into pure r-values ("pr-values") and so-called expiring values ("x-values"), which identify specific objects that can be safely cannibalized for their resources.

Definition at line 270 of file Expr.h.

References getValueKind(), and clang::VK_LValue.

Referenced by clang::Sema::ActOnObjCForCollectionStmt(), clang::Sema::ActOnOpenMPAffinityClause(), clang::Sema::ActOnOpenMPDepobjClause(), clang::Sema::ActOnParenExpr(), clang::Sema::AddAnnotationAttr(), clang::Sema::BuildExpressionFromDeclTemplateArgument(), checkMappableExpressionList(), clang::Sema::CheckVectorOperands(), ClassifyInternal(), clang::Sema::DefaultFunctionArrayConversion(), EvaluateExpressionTrait(), getObjCProperty(), clang::MaterializeTemporaryExpr::isBoundToLvalueReference(), IsGlobalLValue(), clang::ento::ExplodedGraph::isInterestingLValueExpr(), TryConstCast(), tryEmitARCCopyWeakInit(), TryLValueToRValueCast(), and TryStaticReferenceDowncast().

◆ isModifiableLvalue()

Expr::isModifiableLvalueResult Expr::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.

Parameters
Loc[in,out] - A source location which may be filled in with the location of the expression making this a non-modifiable lvalue, if specified.

Definition at line 697 of file ExprClassification.cpp.

References clang::Expr::Classification::CL_AddressableVoid, clang::Expr::Classification::CL_ArrayTemporary, clang::Expr::Classification::CL_ClassTemporary, clang::Expr::Classification::CL_DuplicateVectorComponents, clang::Expr::Classification::CL_Function, clang::Expr::Classification::CL_LValue, clang::Expr::Classification::CL_MemberFunction, clang::Expr::Classification::CL_ObjCMessageRValue, clang::Expr::Classification::CL_PRValue, clang::Expr::Classification::CL_SubObjCPropertySetting, clang::Expr::Classification::CL_Void, clang::Expr::Classification::CL_XValue, ClassifyModifiable(), clang::Expr::Classification::CM_ArrayType, clang::Expr::Classification::CM_ConstAddrSpace, clang::Expr::Classification::CM_ConstQualified, clang::Expr::Classification::CM_ConstQualifiedField, clang::Expr::Classification::CM_Function, clang::Expr::Classification::CM_IncompleteType, clang::Expr::Classification::CM_LValueCast, clang::Expr::Classification::CM_Modifiable, clang::Expr::Classification::CM_NoSetterProperty, clang::Expr::Classification::CM_RValue, clang::Expr::Classification::CM_Untested, clang::Expr::Classification::getKind(), clang::Expr::Classification::getModifiable(), MLV_ArrayTemporary, MLV_ArrayType, MLV_ClassTemporary, MLV_ConstAddrSpace, MLV_ConstQualified, MLV_ConstQualifiedField, MLV_DuplicateVectorComponents, MLV_IncompleteType, MLV_IncompleteVoidType, MLV_InvalidExpression, MLV_InvalidMessageExpression, MLV_LValueCast, MLV_MemberFunction, MLV_NoSetterProperty, MLV_NotObjectType, MLV_SubObjCPropertySetting, and MLV_Valid.

Referenced by clang::Sema::ActOnGCCAsmStmt().

◆ isNullPointerConstant()

Expr::NullPointerConstantKind Expr::isNullPointerConstant ( ASTContext Ctx,
NullPointerConstantValueDependence  NPC 
) const

isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to a Null pointer constant.

isNullPointerConstant - C99 6.3.2.3p3 - Return whether this is a null pointer constant or not, as well as the specific kind of constant detected.

The return value can further distinguish the kind of NULL pointer constant that was detected.

Null pointer constants can be integer constant expressions with the value zero, casts of zero to void*, nullptr (C++0X), or __null (a GNU extension).

Definition at line 3750 of file Expr.cpp.

References containsErrors(), clang::Qualifiers::empty(), EvaluateKnownConstInt(), clang::interp::GE(), clang::QualType::getAddressSpace(), clang::Type::getAs(), clang::ASTContext::getDefaultOpenCLPointeeAddrSpace(), clang::ASTContext::getLangOpts(), clang::Type::getPointeeType(), clang::QualType::getQualifiers(), getType(), clang::APIntStorage::getValue(), isCXX98IntegralConstantExpr(), isIntegerConstantExpr(), isNullPointerConstant(), isTypeDependent(), isValueDependent(), clang::Type::isVoidType(), NPC_NeverValueDependent, NPC_ValueDependentIsNotNull, NPC_ValueDependentIsNull, NPCK_CXX11_nullptr, NPCK_GNUNull, NPCK_NotNull, NPCK_ZeroExpression, NPCK_ZeroLiteral, and clang::Qualifiers::removeAddressSpace().

Referenced by clang::Sema::BuildCXXUuidof(), clang::Sema::BuildInstanceMessage(), clang::Sema::CheckAdditionOperands(), clang::Sema::CheckCompareOperands(), clang::Sema::CheckConversionToObjCLiteral(), clang::Sema::CheckMemberPointerConversion(), clang::Sema::CheckPointerConversion(), clang::Sema::CheckPtrComparisonWithNullChar(), clang::Sema::CheckSingleAssignmentConstraints(), clang::Sema::CheckStaticArrayArgument(), clang::Sema::CheckSubtractionOperands(), clang::Sema::CheckTransparentUnionArgumentConstraints(), clang::Sema::DiagnoseConditionalForNull(), clang::Sema::FindCompositePointerType(), clang::ento::SValBuilder::getConstantVal(), isInvalidICRSource(), clang::Sema::IsMemberPointerConversion(), clang::BinaryOperator::isNullPointerArithmeticExtension(), isNullPointerConstant(), isNullPointerConstantForConversion(), clang::ASTContext::isSentinelNullExpr(), and clang::Sema::PrepareScalarCast().

◆ isOBJCGCCandidate()

bool Expr::isOBJCGCCandidate ( ASTContext Ctx) const

isOBJCGCCandidate - Return true if this expression may be used in a read/ write barrier.

isOBJCGCCandidate - Check if an expression is objc gc'able.

returns true, if it is; false otherwise.

Definition at line 2839 of file Expr.cpp.

References clang::MemberExpr::getBase(), clang::ASTContext::getObjCGCAttrKind(), clang::Stmt::getStmtClass(), IgnoreParens(), isOBJCGCCandidate(), clang::Type::isPointerType(), and clang::Qualifiers::Weak.

Referenced by clang::CodeGen::CodeGenFunction::EmitArraySubscriptExpr(), clang::CodeGen::CodeGenFunction::EmitUnaryOpLValue(), and isOBJCGCCandidate().

◆ isObjCSelfExpr()

bool Expr::isObjCSelfExpr ( ) const

Check if this expression is the ObjC 'self' implicit parameter.

Definition at line 3893 of file Expr.cpp.

References clang::DeclRefExpr::getDecl(), clang::Decl::getDeclContext(), clang::ObjCMethodDecl::getSelfDecl(), and IgnoreParenImpCasts().

Referenced by clang::Sema::BuildInstanceMessage(), and clang::Sema::getMessageSendResultType().

◆ isOrdinaryOrBitFieldObject()

bool clang::Expr::isOrdinaryOrBitFieldObject ( ) const
inline

◆ isPotentialConstantExpr()

bool Expr::isPotentialConstantExpr ( const FunctionDecl FD,
SmallVectorImpl< PartialDiagnosticAt > &  Diags 
)
static

isPotentialConstantExpr - Return true if this function's definition might be usable in a constant expression in C++11, if it were marked constexpr.

Return false if the function can never produce a constant expression, along with diagnostics describing why not.

Definition at line 15638 of file ExprConstant.cpp.

References clang::DeclContext::isDependentContext().

Referenced by CheckConstexprFunctionBody().

◆ isPotentialConstantExprUnevaluated()

bool Expr::isPotentialConstantExprUnevaluated ( Expr E,
const FunctionDecl FD,
SmallVectorImpl< PartialDiagnosticAt > &  Diags 
)
static

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.

Return false if the function can never produce a constant expression, along with diagnostics describing why not.

Definition at line 15686 of file ExprConstant.cpp.

References isValueDependent().

◆ isPRValue()

bool clang::Expr::isPRValue ( ) const
inline

◆ isReadIfDiscardedInCPlusPlus11()

bool Expr::isReadIfDiscardedInCPlusPlus11 ( ) const

Determine whether an lvalue-to-rvalue conversion should implicitly be applied to this expression if it appears as a discarded-value expression in C++11 onwards.

This applies to certain forms of volatile glvalues.

Definition at line 2408 of file Expr.cpp.

References getType(), IgnoreParens(), and isGLValue().

Referenced by clang::Sema::IgnoredValueConversions(), and isUnusedResultAWarning().

◆ isSameComparisonOperand()

bool Expr::isSameComparisonOperand ( const Expr E1,
const Expr E2 
)
static

Checks that the two Expr's will refer to the same value as a comparison operand.

The caller must ensure that the values referenced by the Expr's are not modified between E1 and E2 or the result my be invalid.

Definition at line 3995 of file Expr.cpp.

References clang::declaresSameEntity(), clang::Stmt::getStmtClass(), IgnoreParenImpCasts(), and IgnoreParens().

◆ isTemporaryObject()

bool Expr::isTemporaryObject ( ASTContext Ctx,
const CXXRecordDecl TempTy 
) const

Determine whether the result of this expression is a temporary object of the given class type.

isTemporaryObject - Determines if this expression produces a temporary of the given class type.

Definition at line 3062 of file Expr.cpp.

References Classify(), getType(), clang::Expr::Classification::isPRValue(), and skipTemporaryBindingsNoOpCastsAndParens().

Referenced by clang::CodeGen::CodeGenFunction::EmitCXXConstructExpr().

◆ isTypeDependent()

bool clang::Expr::isTypeDependent ( ) const
inline

Determines whether the type of this expression depends on.

  • a template paramter (C++ [temp.dep.expr], which means that its type could change from one template instantiation to the next)
  • or an error

For example, the expressions "x" and "x + y" are type-dependent in the following code, but "y" is not type-dependent:

template<typename T>
void add(T x, int y) {
x + y;
}

Definition at line 185 of file Expr.h.

References getDependence(), and Type.

Referenced by clang::Sema::ActOnCapScopeReturnStmt(), clang::Sema::ActOnChooseExpr(), clang::Sema::ActOnConditionalOp(), clang::Sema::ActOnCXXDelete(), clang::Sema::ActOnExplicitBoolSpecifier(), clang::Sema::ActOnFinishCXXInClassMemberInitializer(), clang::Sema::ActOnFinishSwitchStmt(), clang::Sema::ActOnGCCAsmStmt(), clang::Sema::ActOnIndirectGotoStmt(), clang::Sema::ActOnNoexceptSpec(), clang::Sema::ActOnObjCForCollectionStmt(), clang::Sema::ActOnOMPArraySectionExpr(), clang::Sema::ActOnOpenMPCriticalDirective(), clang::Sema::ActOnOpenMPDeclareSimdDirective(), clang::Sema::ActOnOpenMPDepobjClause(), clang::Sema::ActOnOpenMPDetachClause(), clang::Sema::ActOnOpenMPDistScheduleClause(), clang::Sema::ActOnOpenMPInitClause(), clang::Sema::ActOnOpenMPLinearClause(), clang::Sema::ActOnOpenMPScheduleClause(), clang::Sema::ActOnPragmaPack(), clang::Sema::ActOnStartOfSwitchStmt(), clang::Sema::ActOnStmtExprResult(), clang::Sema::AddAnnotationAttr(), clang::Sema::BuildArrayType(), clang::Sema::BuildCallExpr(), clang::Sema::BuildCompoundLiteralExpr(), clang::Sema::BuildCXXNamedCast(), clang::Sema::BuildCXXThrow(), clang::Sema::BuildCXXTypeId(), clang::Sema::BuildExpressionTrait(), clang::Sema::BuildExtVectorType(), clang::Sema::BuildInstanceMessage(), clang::Sema::BuildMatrixType(), clang::Sema::BuildObjCBoxedExpr(), clang::Sema::BuildObjCBridgedCast(), clang::Sema::BuildObjCSubscriptExpression(), clang::Sema::BuildReturnStmt(), clang::Sema::BuildStaticAssertDeclaration(), clang::Sema::BuildTypeofExprType(), clang::Sema::BuildVAArgExpr(), clang::Sema::BuildVectorType(), clang::canDynamicCastThrow(), clang::Sema::CheckAddressOfOperand(), clang::Sema::CheckBooleanCondition(), clang::Sema::CheckCaseExpression(), clang::Sema::CheckConditionalOperands(), clang::Sema::CheckConstraintExpression(), clang::Sema::CheckEnumConstant(), clang::Sema::checkExceptionSpecification(), checkMappableExpressionList(), clang::Sema::CheckObjCForCollectionOperand(), clang::Sema::checkOpenMPDeclareVariantFunction(), clang::Sema::checkPseudoObjectIncDec(), clang::Sema::CheckTemplateArgument(), clang::Sema::CheckVecStepExpr(), clang::computeDependence(), clang::CoroutineSuspendExpr::CoroutineSuspendExpr(), clang::Sema::CorrectDelayedTyposInExpr(), clang::Sema::CreateBuiltinMatrixSubscriptExpr(), clang::Sema::CreateOverloadedUnaryOp(), clang::Sema::CreateUnaryExprOrTypeTraitExpr(), clang::Sema::CXXCheckConditionalOperands(), clang::Sema::DiagnoseAssignmentEnum(), clang::Sema::DiagnoseEqualityWithExtraParens(), doRewriteToUTF8StringBoxedExpressionHelper(), findTemplateParameterInType(), clang::ASTContext::getDependentSizedArrayType(), clang::ASTContext::getTypeOfExprType(), clang::ArrayTypeTraitExpr::getValue(), hasAnyTypeDependentArguments(), isBoundMemberFunction(), clang::ChooseExpr::isConditionDependent(), isNonNegativeIntegerValue(), isNullPointerConstant(), isNullPointerConstantForConversion(), clang::ASTContext::isPromotableBitField(), clang::TypeOfExprType::isSugared(), isUnusedResultAWarning(), isValidInteropVariable(), ObjCEnumerationCollection(), clang::Sema::PerformContextualImplicitConversion(), clang::TreeTransform< Derived >::RebuildCXXForRangeStmt(), rewriteToNumericBoxedExpression(), clang::Sema::SemaBuiltinShuffleVector(), clang::Sema::tryExprAsCall(), and clang::Sema::VerifyBitField().

◆ isUnusedResultAWarning()

bool Expr::isUnusedResultAWarning ( const Expr *&  WarnE,
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.

If so, fill in expr, location, and ranges with expr to warn on and source locations/ranges appropriate for a warning.

If so, fill in Loc and Ranges with location to warn on and the source range[s] to report with the warning.

Definition at line 2470 of file Expr.cpp.

References clang::CompoundStmt::body_back(), clang::CompoundStmt::body_empty(), clang::CallExpr::getArg(), clang::Stmt::getBeginLoc(), clang::CallExpr::getCallee(), clang::CallExpr::getCalleeDecl(), clang::CallExpr::getCallReturnType(), clang::ASTContext::getCanonicalType(), clang::CastExpr::getCastKind(), clang::Stmt::getEndLoc(), getExprLoc(), clang::ASTContext::getLangOpts(), clang::BinaryOperator::getLHS(), clang::CStyleCastExpr::getLParenLoc(), clang::ObjCMessageExpr::getMethodDecl(), clang::ObjCMessageExpr::getMethodFamily(), clang::CallExpr::getNumArgs(), clang::UnaryOperator::getOpcode(), clang::BinaryOperator::getOpcode(), clang::CXXOperatorCallExpr::getOperator(), clang::CXXOperatorCallExpr::getOperatorLoc(), clang::UnaryOperator::getOperatorLoc(), clang::BinaryOperator::getOperatorLoc(), clang::BinaryOperator::getRHS(), clang::CXXOperatorCallExpr::getSourceRange(), clang::Stmt::getSourceRange(), clang::Stmt::getStmtClass(), clang::UnaryOperator::getSubExpr(), clang::CastExpr::getSubExpr(), clang::PseudoObjectExpr::getSyntacticForm(), getType(), clang::Type::hasAttr(), clang::CallExpr::hasUnusedResultAttr(), IgnoreParens(), clang::Type::isArrayType(), clang::BinaryOperator::isAssignmentOp(), clang::ObjCMessageExpr::isInstanceMessage(), isReadIfDiscardedInCPlusPlus11(), clang::Type::isReferenceType(), isTypeDependent(), isUnusedResultAWarning(), clang::Type::isVoidType(), clang::CanQual< T >::isVolatileQualified(), clang::QualType::isVolatileQualified(), Label, and clang::OMF_init.

Referenced by isUnusedResultAWarning().

◆ isValueDependent()

bool clang::Expr::isValueDependent ( ) const
inline

Determines whether the value of this expression depends on.

  • a template parameter (C++ [temp.dep.constexpr])
  • or an error, whose resolution is unknown

For example, the array bound of "Chars" in the following example is value-dependent.

template<int Size, char (&Chars)[Size]> struct meta_string;

Definition at line 168 of file Expr.h.

References getDependence().

Referenced by clang::Sema::ActOnChooseExpr(), clang::Sema::ActOnFinishSwitchStmt(), clang::Sema::ActOnGCCAsmStmt(), clang::Sema::ActOnNoexceptSpec(), clang::Sema::ActOnOMPArraySectionExpr(), clang::Sema::ActOnOpenMPCriticalDirective(), clang::Sema::ActOnOpenMPDeclareSimdDirective(), clang::Sema::ActOnOpenMPDependClause(), clang::Sema::ActOnOpenMPDepobjClause(), clang::Sema::ActOnOpenMPDetachClause(), clang::Sema::ActOnOpenMPDistScheduleClause(), clang::Sema::ActOnOpenMPInitClause(), clang::Sema::ActOnOpenMPLinearClause(), clang::Sema::ActOnOpenMPScheduleClause(), clang::Sema::ActOnPragmaPack(), clang::Sema::AddAlignedAttr(), clang::Sema::AddAlignValueAttr(), clang::Sema::AddAnnotationAttr(), clang::Sema::AddAssumeAlignedAttr(), clang::Sema::BuildAddressSpaceAttr(), clang::Sema::BuildArrayType(), clang::Sema::BuildCompoundLiteralExpr(), clang::Sema::BuildExtVectorType(), clang::Sema::BuildMatrixType(), clang::Sema::BuildStaticAssertDeclaration(), clang::Sema::BuildVectorType(), clang::Sema::CheckCaseExpression(), clang::Sema::CheckCXXBooleanCondition(), clang::Sema::CheckEnumConstant(), CheckICE(), clang::Sema::CheckLogicalOperands(), clang::Sema::CheckLoopHintExpr(), checkMappableExpressionList(), clang::Sema::checkOpenMPDeclareVariantFunction(), checkOpenMPLoop(), clang::Sema::CheckSubtractionOperands(), clang::Sema::CheckTemplateArgument(), clang::Sema::CorrectDelayedTyposInExpr(), clang::Sema::DiagnoseAssignmentEnum(), clang::Sema::DiagnoseSentinelCalls(), diagnoseStringPlusInt(), Evaluate(), EvaluateArray(), EvaluateArrayNewConstructExpr(), EvaluateArrayNewInitList(), EvaluateAsBooleanCondition(), EvaluateAsFixedPoint(), EvaluateAsInt(), EvaluateAsRValue(), EvaluateAtomic(), EvaluateComparisonBinaryOperator(), EvaluateComplex(), EvaluateCond(), EvaluateDependentExpr(), EvaluateFixedPoint(), EvaluateFixedPointOrInteger(), EvaluateFloat(), EvaluateIgnoredValue(), EvaluateInPlace(), EvaluateInteger(), EvaluateIntegerOrLValue(), EvaluateLValue(), EvaluateMemberPointer(), EvaluatePointer(), EvaluateRecord(), EvaluateTemporary(), EvaluateVarDecl(), EvaluateVoid(), clang::Sema::FinalizeVarWithDestructor(), clang::ASTContext::getDependentSizedArrayType(), clang::SizeOfPackExpr::getPackLength(), clang::ConceptSpecializationExpr::getSatisfaction(), clang::TypeTraitExpr::getValue(), clang::CallExpr::isBuiltinAssumeFalse(), clang::ChooseExpr::isConditionDependent(), isConstantInitializer(), isNonNegativeIntegerValue(), isNullPointerConstant(), isNullPointerConstantForConversion(), clang::SizeOfPackExpr::isPartiallySubstituted(), isPotentialConstantExprUnevaluated(), clang::ASTContext::isPromotableBitField(), clang::ConceptSpecializationExpr::isSatisfied(), clang::RequiresExpr::isSatisfied(), isValidInteropVariable(), clang::FieldDecl::isZeroLengthBitField(), clang::Sema::SemaBuiltinShuffleVector(), clang::Sema::tryResolveExplicitSpecifier(), clang::Sema::VerifyBitField(), clang::EvaluatedExprVisitorBase< std::add_pointer, Derived >::VisitChooseExpr(), clang::ASTNodeImporter::VisitCXXNoexceptExpr(), clang::JSONNodeDumper::VisitRequiresExpr(), clang::ASTNodeImporter::VisitSizeOfPackExpr(), clang::ASTNodeImporter::VisitTypeTraitExpr(), and clang::TextNodeDumper::VisitVarDecl().

◆ isXValue()

bool clang::Expr::isXValue ( ) const
inline

◆ operator=() [1/2]

Expr& clang::Expr::operator= ( const Expr )
delete

◆ operator=() [2/2]

Expr& clang::Expr::operator= ( Expr &&  )
delete

◆ refersToBitField()

bool clang::Expr::refersToBitField ( ) const
inline

Returns true if this expression is a gl-value that potentially refers to a bit-field.

In C++, whether a gl-value refers to a bitfield is essentially an aspect of the value-kind type system.

Definition at line 462 of file Expr.h.

References getObjectKind(), and clang::OK_BitField.

Referenced by clang::Sema::BuildTypeofExprType(), clang::Sema::CreateUnaryExprOrTypeTraitExpr(), clang::Sema::CXXCheckConditionalOperands(), isNonReferenceableGLValue(), and TryConstCast().

◆ refersToGlobalRegisterVar()

bool Expr::refersToGlobalRegisterVar ( ) const

Returns whether this expression refers to a global register variable.

Definition at line 3983 of file Expr.cpp.

References IgnoreParenImpCasts(), and clang::SC_Register.

◆ refersToMatrixElement()

bool clang::Expr::refersToMatrixElement ( ) const
inline

Returns whether this expression refers to a matrix element.

Definition at line 493 of file Expr.h.

References getObjectKind(), and clang::OK_MatrixComponent.

Referenced by isNonReferenceableGLValue().

◆ refersToVectorElement()

bool Expr::refersToVectorElement ( ) const

Returns whether this expression refers to a vector element.

Definition at line 3958 of file Expr.cpp.

References getType(), IgnoreParens(), clang::Type::isVectorType(), and refersToVectorElement().

Referenced by clang::Sema::CXXCheckConditionalOperands(), isNonReferenceableGLValue(), and refersToVectorElement().

◆ setDependence()

void clang::Expr::setDependence ( ExprDependence  Deps)
inlineprotected

Each concrete expr subclass is expected to compute its dependence and call this in the constructor.

Definition at line 134 of file Expr.h.

References clang::Stmt::ExprBits.

Referenced by clang::AddrLabelExpr::AddrLabelExpr(), clang::ArrayInitIndexExpr::ArrayInitIndexExpr(), clang::ArraySubscriptExpr::ArraySubscriptExpr(), clang::ArrayTypeTraitExpr::ArrayTypeTraitExpr(), clang::AsTypeExpr::AsTypeExpr(), clang::AtomicExpr::AtomicExpr(), clang::BinaryConditionalOperator::BinaryConditionalOperator(), clang::BinaryOperator::BinaryOperator(), clang::BlockExpr::BlockExpr(), clang::CastExpr::CastExpr(), clang::CharacterLiteral::CharacterLiteral(), clang::ChooseExpr::ChooseExpr(), clang::CompoundLiteralExpr::CompoundLiteralExpr(), clang::CallExpr::computeDependence(), clang::ConceptSpecializationExpr::ConceptSpecializationExpr(), clang::ConditionalOperator::ConditionalOperator(), clang::ConvertVectorExpr::ConvertVectorExpr(), clang::CoroutineSuspendExpr::CoroutineSuspendExpr(), clang::CXXBoolLiteralExpr::CXXBoolLiteralExpr(), clang::CXXConstructExpr::CXXConstructExpr(), clang::CXXDeleteExpr::CXXDeleteExpr(), clang::CXXFoldExpr::CXXFoldExpr(), clang::CXXInheritedCtorInitExpr::CXXInheritedCtorInitExpr(), clang::CXXNoexceptExpr::CXXNoexceptExpr(), clang::CXXNullPtrLiteralExpr::CXXNullPtrLiteralExpr(), clang::CXXPseudoDestructorExpr::CXXPseudoDestructorExpr(), clang::CXXRewrittenBinaryOperator::CXXRewrittenBinaryOperator(), clang::CXXScalarValueInitExpr::CXXScalarValueInitExpr(), clang::CXXStdInitializerListExpr::CXXStdInitializerListExpr(), clang::CXXThisExpr::CXXThisExpr(), clang::CXXThrowExpr::CXXThrowExpr(), clang::CXXTypeidExpr::CXXTypeidExpr(), clang::CXXUuidofExpr::CXXUuidofExpr(), clang::DeclRefExpr::DeclRefExpr(), clang::DependentCoawaitExpr::DependentCoawaitExpr(), clang::DesignatedInitUpdateExpr::DesignatedInitUpdateExpr(), clang::ExpressionTraitExpr::ExpressionTraitExpr(), clang::ExtVectorElementExpr::ExtVectorElementExpr(), clang::FixedPointLiteral::FixedPointLiteral(), clang::FullExpr::FullExpr(), clang::GNUNullExpr::GNUNullExpr(), clang::ImaginaryLiteral::ImaginaryLiteral(), clang::ImplicitValueInitExpr::ImplicitValueInitExpr(), clang::InitListExpr::InitListExpr(), clang::IntegerLiteral::IntegerLiteral(), clang::CallExpr::markDependentForPostponedNameLookup(), clang::InitListExpr::markError(), clang::MaterializeTemporaryExpr::MaterializeTemporaryExpr(), clang::MSPropertyRefExpr::MSPropertyRefExpr(), clang::NoInitExpr::NoInitExpr(), clang::ObjCAvailabilityCheckExpr::ObjCAvailabilityCheckExpr(), clang::ObjCBoolLiteralExpr::ObjCBoolLiteralExpr(), clang::ObjCBoxedExpr::ObjCBoxedExpr(), clang::ObjCEncodeExpr::ObjCEncodeExpr(), clang::ObjCIndirectCopyRestoreExpr::ObjCIndirectCopyRestoreExpr(), clang::ObjCIsaExpr::ObjCIsaExpr(), clang::ObjCIvarRefExpr::ObjCIvarRefExpr(), clang::ObjCPropertyRefExpr::ObjCPropertyRefExpr(), clang::ObjCProtocolExpr::ObjCProtocolExpr(), clang::ObjCSelectorExpr::ObjCSelectorExpr(), clang::ObjCStringLiteral::ObjCStringLiteral(), clang::ObjCSubscriptRefExpr::ObjCSubscriptRefExpr(), clang::OpaqueValueExpr::OpaqueValueExpr(), clang::PackExpansionExpr::PackExpansionExpr(), clang::ParenExpr::ParenExpr(), clang::DeclRefExpr::setDecl(), clang::InitListExpr::setInit(), clang::MemberExpr::setMemberDecl(), clang::ShuffleVectorExpr::ShuffleVectorExpr(), clang::SourceLocExpr::SourceLocExpr(), clang::StmtExpr::StmtExpr(), clang::SubstNonTypeTemplateParmExpr::SubstNonTypeTemplateParmExpr(), clang::SubstNonTypeTemplateParmPackExpr::SubstNonTypeTemplateParmPackExpr(), clang::TypoExpr::TypoExpr(), clang::UnaryExprOrTypeTraitExpr::UnaryExprOrTypeTraitExpr(), clang::UnaryOperator::UnaryOperator(), and clang::VAArgExpr::VAArgExpr().

◆ setObjectKind()

void clang::Expr::setObjectKind ( ExprObjectKind  Cat)
inline

setObjectKind - Set the object kind produced by this expression.

Definition at line 450 of file Expr.h.

References clang::Stmt::ExprBits.

Referenced by clang::Sema::BuildDeclRefExpr().

◆ setType()

void clang::Expr::setType ( QualType  t)
inline

◆ setValueKind()

void clang::Expr::setValueKind ( ExprValueKind  Cat)
inline

setValueKind - Set the value kind produced by this expression.

Definition at line 447 of file Expr.h.

References clang::Stmt::ExprBits.

Referenced by clang::Sema::BuildResolvedCallExpr(), removeLValueToRValueCast(), updateGNUCompoundLiteralRValue(), and updateStringLiteralType().

◆ skipRValueSubobjectAdjustments() [1/2]

const Expr* clang::Expr::skipRValueSubobjectAdjustments ( ) const
inline

Definition at line 969 of file Expr.h.

◆ skipRValueSubobjectAdjustments() [2/2]

const Expr * 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.

Record the LHSs of comma expressions and adjustments needed along the path.

Definition at line 80 of file Expr.cpp.

References clang::Type::castAs(), clang::Type::getAs(), clang::RecordType::getDecl(), getType(), IgnoreParens(), and clang::Type::isRecordType().

Referenced by clang::CodeGen::CodeGenFunction::EmitMaterializeTemporaryExpr().

◆ tryEvaluateObjectSize()

bool Expr::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.

Returns true if all of the above holds and we were able to figure out the size, false otherwise.

Parameters
Type- How to evaluate the size of the Expr, as defined by the "type" parameter of __builtin_object_size

Definition at line 15709 of file ExprConstant.cpp.

◆ tryEvaluateStrLen()

bool Expr::tryEvaluateStrLen ( uint64_t &  Result,
ASTContext Ctx 
) const

If the current Expr is a pointer, this will try to statically determine the strlen of the string pointed to.

Returns true if all of the above holds and we were able to figure out the strlen, false otherwise.

Definition at line 15768 of file ExprConstant.cpp.

Friends And Related Function Documentation

◆ ASTImporter

friend class ASTImporter
friend

Definition at line 137 of file Expr.h.

◆ ASTStmtReader

friend class ASTStmtReader
friend

Definition at line 138 of file Expr.h.


The documentation for this class was generated from the following files:
x
IRgen optimization opportunities The common pattern of short x
Definition: README.txt:7