clang  3.7.0
Classes | Public Types | Public Member Functions | Static Public Member Functions | List of all members
clang::DesignatedInitExpr Class Reference

Represents a C99 designated initializer expression. More...

#include <Expr.h>

Inheritance diagram for clang::DesignatedInitExpr:
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Collaboration diagram for clang::DesignatedInitExpr:
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Classes

struct  ArrayOrRangeDesignator
 An array or GNU array-range designator, e.g., "[9]" or "[10..15]". More...
 
class  Designator
 Represents a single C99 designator. More...
 
struct  FieldDesignator
 A field designator, e.g., ".x". More...
 

Public Types

typedef Designatordesignators_iterator
 
typedef const Designatorconst_designators_iterator
 
typedef llvm::iterator_range
< designators_iterator
designators_range
 
typedef llvm::iterator_range
< const_designators_iterator
designators_const_range
 
typedef std::reverse_iterator
< designators_iterator
reverse_designators_iterator
 
typedef std::reverse_iterator
< const_designators_iterator
const_reverse_designators_iterator
 
- Public Types inherited from clang::Expr
enum  LValueClassification {
  LV_Valid, LV_NotObjectType, LV_IncompleteVoidType, LV_DuplicateVectorComponents,
  LV_InvalidExpression, LV_InvalidMessageExpression, LV_MemberFunction, LV_SubObjCPropertySetting,
  LV_ClassTemporary, LV_ArrayTemporary
}
 
enum  isModifiableLvalueResult {
  MLV_Valid, MLV_NotObjectType, MLV_IncompleteVoidType, MLV_DuplicateVectorComponents,
  MLV_InvalidExpression, MLV_LValueCast, MLV_IncompleteType, MLV_ConstQualified,
  MLV_ConstAddrSpace, MLV_ArrayType, MLV_NoSetterProperty, MLV_MemberFunction,
  MLV_SubObjCPropertySetting, MLV_InvalidMessageExpression, MLV_ClassTemporary, MLV_ArrayTemporary
}
 
enum  SideEffectsKind { SE_NoSideEffects, SE_AllowSideEffects }
 
enum  NullPointerConstantKind {
  NPCK_NotNull = 0, NPCK_ZeroExpression, NPCK_ZeroLiteral, NPCK_CXX11_nullptr,
  NPCK_GNUNull
}
 Enumeration used to describe the kind of Null pointer constant returned from isNullPointerConstant(). More...
 
enum  NullPointerConstantValueDependence { NPC_NeverValueDependent = 0, NPC_ValueDependentIsNull, NPC_ValueDependentIsNotNull }
 Enumeration used to describe how isNullPointerConstant() should cope with value-dependent expressions. More...
 

Public Member Functions

unsigned size () const
 Returns the number of designators in this initializer. More...
 
designators_iterator designators_begin ()
 
designators_iterator designators_end ()
 
const_designators_iterator designators_begin () const
 
const_designators_iterator designators_end () const
 
designators_range designators ()
 
designators_const_range designators () const
 
reverse_designators_iterator designators_rbegin ()
 
reverse_designators_iterator designators_rend ()
 
const_reverse_designators_iterator designators_rbegin () const
 
const_reverse_designators_iterator designators_rend () const
 
DesignatorgetDesignator (unsigned Idx)
 
void setDesignators (const ASTContext &C, const Designator *Desigs, unsigned NumDesigs)
 
ExprgetArrayIndex (const Designator &D) const
 
ExprgetArrayRangeStart (const Designator &D) const
 
ExprgetArrayRangeEnd (const Designator &D) const
 
SourceLocation getEqualOrColonLoc () const
 Retrieve the location of the '=' that precedes the initializer value itself, if present. More...
 
void setEqualOrColonLoc (SourceLocation L)
 
bool usesGNUSyntax () const
 Determines whether this designated initializer used the deprecated GNU syntax for designated initializers. More...
 
void setGNUSyntax (bool GNU)
 
ExprgetInit () const
 Retrieve the initializer value. More...
 
void setInit (Expr *init)
 
unsigned getNumSubExprs () const
 Retrieve the total number of subexpressions in this designated initializer expression, including the actual initialized value and any expressions that occur within array and array-range designators. More...
 
ExprgetSubExpr (unsigned Idx) const
 
void setSubExpr (unsigned Idx, Expr *E)
 
void ExpandDesignator (const ASTContext &C, unsigned Idx, const Designator *First, const Designator *Last)
 Replaces the designator at index Idx with the series of designators in [First, Last). More...
 
SourceRange getDesignatorsSourceRange () const
 
SourceLocation getLocStart () const LLVM_READONLY
 
SourceLocation getLocEnd () const LLVM_READONLY
 
child_range children ()
 
- Public Member Functions inherited from clang::Expr
QualType getType () const
 
void setType (QualType t)
 
bool isValueDependent () const
 
void setValueDependent (bool VD)
 Set whether this expression is value-dependent or not. More...
 
bool isTypeDependent () const
 
void setTypeDependent (bool TD)
 Set whether this expression is type-dependent or not. More...
 
bool isInstantiationDependent () const
 Whether this expression is instantiation-dependent, meaning that it depends in some way on a template parameter, even if neither its type nor (constant) value can change due to the template instantiation. More...
 
void setInstantiationDependent (bool ID)
 Set whether this expression is instantiation-dependent or not. More...
 
bool containsUnexpandedParameterPack () const
 Whether this expression contains an unexpanded parameter pack (for C++11 variadic templates). More...
 
void setContainsUnexpandedParameterPack (bool PP=true)
 Set the bit that describes whether this expression contains an unexpanded parameter pack. More...
 
SourceLocation getExprLoc () const LLVM_READONLY
 
bool isUnusedResultAWarning (const Expr *&WarnExpr, SourceLocation &Loc, SourceRange &R1, SourceRange &R2, ASTContext &Ctx) const
 
bool isLValue () const
 
bool isRValue () const
 
bool isXValue () const
 
bool isGLValue () const
 
LValueClassification ClassifyLValue (ASTContext &Ctx) const
 Reasons why an expression might not be an l-value. More...
 
isModifiableLvalueResult isModifiableLvalue (ASTContext &Ctx, SourceLocation *Loc=nullptr) const
 
Classification Classify (ASTContext &Ctx) const
 Classify - Classify this expression according to the C++11 expression taxonomy. More...
 
Classification ClassifyModifiable (ASTContext &Ctx, SourceLocation &Loc) const
 ClassifyModifiable - Classify this expression according to the C++11 expression taxonomy, and see if it is valid on the left side of an assignment. More...
 
ExprValueKind getValueKind () const
 getValueKind - The value kind that this expression produces. More...
 
ExprObjectKind getObjectKind () const
 
bool isOrdinaryOrBitFieldObject () const
 
void setValueKind (ExprValueKind Cat)
 setValueKind - Set the value kind produced by this expression. More...
 
void setObjectKind (ExprObjectKind Cat)
 setObjectKind - Set the object kind produced by this expression. More...
 
bool refersToBitField () const
 Returns true if this expression is a gl-value that potentially refers to a bit-field. More...
 
FieldDeclgetSourceBitField ()
 If this expression refers to a bit-field, retrieve the declaration of that bit-field. More...
 
const FieldDeclgetSourceBitField () const
 
const ObjCPropertyRefExprgetObjCProperty () const
 If this expression is an l-value for an Objective C property, find the underlying property reference expression. More...
 
bool isObjCSelfExpr () const
 Check if this expression is the ObjC 'self' implicit parameter. More...
 
bool refersToVectorElement () const
 Returns whether this expression refers to a vector element. More...
 
bool hasPlaceholderType () const
 Returns whether this expression has a placeholder type. More...
 
bool hasPlaceholderType (BuiltinType::Kind K) const
 Returns whether this expression has a specific placeholder type. More...
 
bool isKnownToHaveBooleanValue () const
 
bool isIntegerConstantExpr (llvm::APSInt &Result, const ASTContext &Ctx, SourceLocation *Loc=nullptr, bool isEvaluated=true) const
 
bool isIntegerConstantExpr (const ASTContext &Ctx, SourceLocation *Loc=nullptr) const
 
bool isCXX98IntegralConstantExpr (const ASTContext &Ctx) const
 
bool isCXX11ConstantExpr (const ASTContext &Ctx, APValue *Result=nullptr, SourceLocation *Loc=nullptr) const
 
bool isConstantInitializer (ASTContext &Ctx, bool ForRef, const Expr **Culprit=nullptr) const
 
bool EvaluateAsRValue (EvalResult &Result, const ASTContext &Ctx) const
 
bool EvaluateAsBooleanCondition (bool &Result, const ASTContext &Ctx) const
 
bool EvaluateAsInt (llvm::APSInt &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const
 
bool isEvaluatable (const ASTContext &Ctx) const
 
bool HasSideEffects (const ASTContext &Ctx, bool IncludePossibleEffects=true) const
 
bool hasNonTrivialCall (const ASTContext &Ctx) const
 Determine whether this expression involves a call to any function that is not trivial. More...
 
llvm::APSInt EvaluateKnownConstInt (const ASTContext &Ctx, SmallVectorImpl< PartialDiagnosticAt > *Diag=nullptr) const
 
void EvaluateForOverflow (const ASTContext &Ctx) const
 
bool EvaluateAsLValue (EvalResult &Result, const ASTContext &Ctx) const
 
bool EvaluateAsInitializer (APValue &Result, const ASTContext &Ctx, const VarDecl *VD, SmallVectorImpl< PartialDiagnosticAt > &Notes) const
 
bool EvaluateWithSubstitution (APValue &Value, ASTContext &Ctx, const FunctionDecl *Callee, ArrayRef< const Expr * > Args) const
 
NullPointerConstantKind isNullPointerConstant (ASTContext &Ctx, NullPointerConstantValueDependence NPC) const
 
bool isOBJCGCCandidate (ASTContext &Ctx) const
 
bool isBoundMemberFunction (ASTContext &Ctx) const
 Returns true if this expression is a bound member function. More...
 
ExprIgnoreImpCasts () LLVM_READONLY
 
ExprIgnoreImplicit () LLVM_READONLY
 
const ExprIgnoreImplicit () const LLVM_READONLY
 
ExprIgnoreParens () LLVM_READONLY
 
ExprIgnoreParenCasts () LLVM_READONLY
 
ExprIgnoreCasts () LLVM_READONLY
 Ignore casts. Strip off any CastExprs, returning their operand. More...
 
ExprIgnoreParenImpCasts () LLVM_READONLY
 
ExprIgnoreConversionOperator () LLVM_READONLY
 
const ExprIgnoreConversionOperator () const LLVM_READONLY
 
const ExprIgnoreParenImpCasts () const LLVM_READONLY
 
ExprIgnoreParenLValueCasts () LLVM_READONLY
 
const ExprIgnoreParenLValueCasts () const LLVM_READONLY
 
ExprIgnoreParenNoopCasts (ASTContext &Ctx) LLVM_READONLY
 
ExprignoreParenBaseCasts () LLVM_READONLY
 Ignore parentheses and derived-to-base casts. More...
 
const ExprignoreParenBaseCasts () const LLVM_READONLY
 
bool isDefaultArgument () const
 Determine whether this expression is a default function argument. More...
 
bool isTemporaryObject (ASTContext &Ctx, const CXXRecordDecl *TempTy) const
 Determine whether the result of this expression is a temporary object of the given class type. More...
 
bool isImplicitCXXThis () const
 Whether this expression is an implicit reference to 'this' in C++. More...
 
const ExprIgnoreImpCasts () const LLVM_READONLY
 
const ExprIgnoreParens () const LLVM_READONLY
 
const ExprIgnoreParenCasts () const LLVM_READONLY
 
const ExprIgnoreCasts () const LLVM_READONLY
 Strip off casts, but keep parentheses. More...
 
const ExprIgnoreParenNoopCasts (ASTContext &Ctx) const LLVM_READONLY
 
const CXXRecordDeclgetBestDynamicClassType () const
 For an expression of class type or pointer to class type, return the most derived class decl the expression is known to refer to. More...
 
const ExprskipRValueSubobjectAdjustments (SmallVectorImpl< const Expr * > &CommaLHS, SmallVectorImpl< SubobjectAdjustment > &Adjustments) const
 

Static Public Member Functions

static DesignatedInitExprCreate (const ASTContext &C, Designator *Designators, unsigned NumDesignators, ArrayRef< Expr * > IndexExprs, SourceLocation EqualOrColonLoc, bool GNUSyntax, Expr *Init)
 
static DesignatedInitExprCreateEmpty (const ASTContext &C, unsigned NumIndexExprs)
 
static bool classof (const Stmt *T)
 
- Static Public Member Functions inherited from clang::Expr
static ExprValueKind getValueKindForType (QualType T)
 
static bool isPotentialConstantExpr (const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags)
 
static bool isPotentialConstantExprUnevaluated (Expr *E, const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags)
 
static QualType findBoundMemberType (const Expr *expr)
 Given an expression of bound-member type, find the type of the member. Returns null if this is an overloaded bound member expression. More...
 
static bool hasAnyTypeDependentArguments (ArrayRef< Expr * > Exprs)
 
static bool classof (const Stmt *T)
 

Additional Inherited Members

- Protected Member Functions inherited from clang::Expr
 Expr (StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, bool TD, bool VD, bool ID, bool ContainsUnexpandedParameterPack)
 
 Expr (StmtClass SC, EmptyShell)
 Construct an empty expression. More...
 

Detailed Description

Represents a C99 designated initializer expression.

A designated initializer expression (C99 6.7.8) contains one or more designators (which can be field designators, array designators, or GNU array-range designators) followed by an expression that initializes the field or element(s) that the designators refer to. For example, given:

struct point {
double x;
double y;
};
struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 };

The InitListExpr contains three DesignatedInitExprs, the first of which covers [2].y=1.0. This DesignatedInitExpr will have two designators, one array designator for [2] followed by one field designator for .y. The initialization expression will be 1.0.

Definition at line 3961 of file Expr.h.

Member Typedef Documentation

Definition at line 4170 of file Expr.h.

Definition at line 4197 of file Expr.h.

Definition at line 4182 of file Expr.h.

Definition at line 4164 of file Expr.h.

Definition at line 4176 of file Expr.h.

Definition at line 4188 of file Expr.h.

Member Function Documentation

child_range clang::DesignatedInitExpr::children ( )
inline

Definition at line 4264 of file Expr.h.

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

Definition at line 4259 of file Expr.h.

DesignatedInitExpr * DesignatedInitExpr::Create ( const ASTContext C,
Designator Designators,
unsigned  NumDesignators,
ArrayRef< Expr * >  IndexExprs,
SourceLocation  EqualOrColonLoc,
bool  GNUSyntax,
Expr Init 
)
static
DesignatedInitExpr * DesignatedInitExpr::CreateEmpty ( const ASTContext C,
unsigned  NumIndexExprs 
)
static

Definition at line 3948 of file Expr.cpp.

References clang::ASTContext::Allocate().

designators_range clang::DesignatedInitExpr::designators ( )
inline

Definition at line 4177 of file Expr.h.

References designators_begin(), and designators_end().

designators_const_range clang::DesignatedInitExpr::designators ( ) const
inline

Definition at line 4183 of file Expr.h.

References designators_begin(), and designators_end().

designators_iterator clang::DesignatedInitExpr::designators_begin ( )
inline
const_designators_iterator clang::DesignatedInitExpr::designators_begin ( ) const
inline

Definition at line 4171 of file Expr.h.

designators_iterator clang::DesignatedInitExpr::designators_end ( )
inline

Definition at line 4166 of file Expr.h.

Referenced by designators(), and designators_rbegin().

const_designators_iterator clang::DesignatedInitExpr::designators_end ( ) const
inline

Definition at line 4172 of file Expr.h.

reverse_designators_iterator clang::DesignatedInitExpr::designators_rbegin ( )
inline

Definition at line 4189 of file Expr.h.

References designators_end().

const_reverse_designators_iterator clang::DesignatedInitExpr::designators_rbegin ( ) const
inline

Definition at line 4198 of file Expr.h.

References designators_end().

reverse_designators_iterator clang::DesignatedInitExpr::designators_rend ( )
inline

Definition at line 4192 of file Expr.h.

References designators_begin().

const_reverse_designators_iterator clang::DesignatedInitExpr::designators_rend ( ) const
inline

Definition at line 4201 of file Expr.h.

References designators_begin().

void DesignatedInitExpr::ExpandDesignator ( const ASTContext C,
unsigned  Idx,
const Designator First,
const Designator Last 
)

Replaces the designator at index Idx with the series of designators in [First, Last).

Definition at line 4013 of file Expr.cpp.

References AttributeLangSupport::C.

Referenced by ExpandAnonymousFieldDesignator().

Expr * DesignatedInitExpr::getArrayIndex ( const Designator D) const
Expr * DesignatedInitExpr::getArrayRangeEnd ( const Designator D) const
Expr * DesignatedInitExpr::getArrayRangeStart ( const Designator D) const
Designator* clang::DesignatedInitExpr::getDesignator ( unsigned  Idx)
inline

Definition at line 4205 of file Expr.h.

References designators_begin().

Referenced by ExpandAnonymousFieldDesignator(), and getDesignatorsSourceRange().

SourceRange DesignatedInitExpr::getDesignatorsSourceRange ( ) const
SourceLocation clang::DesignatedInitExpr::getEqualOrColonLoc ( ) const
inline

Retrieve the location of the '=' that precedes the initializer value itself, if present.

Definition at line 4216 of file Expr.h.

Referenced by CloneDesignatedInitExpr().

Expr* clang::DesignatedInitExpr::getInit ( ) const
inline

Retrieve the initializer value.

Definition at line 4225 of file Expr.h.

Referenced by CloneDesignatedInitExpr(), getLocEnd(), and clang::EvaluatedExprVisitorBase< make_ptr, ImplClass >::VisitDesignatedInitExpr().

SourceLocation DesignatedInitExpr::getLocEnd ( ) const

Definition at line 3987 of file Expr.cpp.

References getInit().

SourceLocation DesignatedInitExpr::getLocStart ( ) const
unsigned clang::DesignatedInitExpr::getNumSubExprs ( ) const
inline

Retrieve the total number of subexpressions in this designated initializer expression, including the actual initialized value and any expressions that occur within array and array-range designators.

Definition at line 4237 of file Expr.h.

Referenced by CloneDesignatedInitExpr().

Expr* clang::DesignatedInitExpr::getSubExpr ( unsigned  Idx) const
inline

Definition at line 4239 of file Expr.h.

Referenced by CloneDesignatedInitExpr().

void DesignatedInitExpr::setDesignators ( const ASTContext C,
const Designator Desigs,
unsigned  NumDesigs 
)

Definition at line 3955 of file Expr.cpp.

References AttributeLangSupport::C.

void clang::DesignatedInitExpr::setEqualOrColonLoc ( SourceLocation  L)
inline

Definition at line 4217 of file Expr.h.

void clang::DesignatedInitExpr::setGNUSyntax ( bool  GNU)
inline

Definition at line 4222 of file Expr.h.

References clang::GNU.

void clang::DesignatedInitExpr::setInit ( Expr init)
inline

Definition at line 4229 of file Expr.h.

void clang::DesignatedInitExpr::setSubExpr ( unsigned  Idx,
Expr E 
)
inline

Definition at line 4244 of file Expr.h.

unsigned clang::DesignatedInitExpr::size ( ) const
inline

Returns the number of designators in this initializer.

Definition at line 4161 of file Expr.h.

Referenced by CloneDesignatedInitExpr(), and getDesignatorsSourceRange().

bool clang::DesignatedInitExpr::usesGNUSyntax ( ) const
inline

Determines whether this designated initializer used the deprecated GNU syntax for designated initializers.

Definition at line 4221 of file Expr.h.

Referenced by CloneDesignatedInitExpr().


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