clang  3.7.0
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | List of all members
clang::CallExpr Class Reference

#include <Expr.h>

Inheritance diagram for clang::CallExpr:
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Collaboration diagram for clang::CallExpr:
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Public Types

typedef ExprIterator arg_iterator
 
typedef ConstExprIterator const_arg_iterator
 
typedef llvm::iterator_range
< arg_iterator
arg_range
 
typedef llvm::iterator_range
< const_arg_iterator
arg_const_range
 
- 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

 CallExpr (const ASTContext &C, Expr *fn, ArrayRef< Expr * > args, QualType t, ExprValueKind VK, SourceLocation rparenloc)
 
 CallExpr (const ASTContext &C, StmtClass SC, EmptyShell Empty)
 Build an empty call expression. More...
 
const ExprgetCallee () const
 
ExprgetCallee ()
 
void setCallee (Expr *F)
 
DeclgetCalleeDecl ()
 
const DeclgetCalleeDecl () const
 
FunctionDeclgetDirectCallee ()
 If the callee is a FunctionDecl, return it. Otherwise return 0. More...
 
const FunctionDeclgetDirectCallee () const
 
unsigned getNumArgs () const
 
Expr ** getArgs ()
 Retrieve the call arguments. More...
 
const Expr *const * getArgs () const
 
ExprgetArg (unsigned Arg)
 getArg - Return the specified argument. More...
 
const ExprgetArg (unsigned Arg) const
 
void setArg (unsigned Arg, Expr *ArgExpr)
 setArg - Set the specified argument. More...
 
void setNumArgs (const ASTContext &C, unsigned NumArgs)
 
arg_range arguments ()
 
arg_const_range arguments () const
 
arg_iterator arg_begin ()
 
arg_iterator arg_end ()
 
const_arg_iterator arg_begin () const
 
const_arg_iterator arg_end () const
 
ArrayRef< Stmt * > getRawSubExprs ()
 
unsigned getNumCommas () const
 
unsigned getBuiltinCallee () const
 
bool isUnevaluatedBuiltinCall (const ASTContext &Ctx) const
 Returns true if this is a call to a builtin which does not evaluate side-effects within its arguments. More...
 
QualType getCallReturnType (const ASTContext &Ctx) const
 
SourceLocation getRParenLoc () const
 
void setRParenLoc (SourceLocation L)
 
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 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)
 

Protected Member Functions

 CallExpr (const ASTContext &C, StmtClass SC, Expr *fn, unsigned NumPreArgs, ArrayRef< Expr * > args, QualType t, ExprValueKind VK, SourceLocation rparenloc)
 
 CallExpr (const ASTContext &C, StmtClass SC, unsigned NumPreArgs, EmptyShell Empty)
 
StmtgetPreArg (unsigned i)
 
const StmtgetPreArg (unsigned i) const
 
void setPreArg (unsigned i, Stmt *PreArg)
 
unsigned getNumPreArgs () const
 
- 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

CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). CallExpr itself represents a normal function call, e.g., "f(x, 2)", while its subclasses may represent alternative syntax that (semantically) results in a function call. For example, CXXOperatorCallExpr is a subclass for overloaded operator calls that use operator syntax, e.g., "str1 + str2" to resolve to a function call.

Definition at line 2152 of file Expr.h.

Member Typedef Documentation

Definition at line 2239 of file Expr.h.

Definition at line 2236 of file Expr.h.

typedef llvm::iterator_range<arg_iterator> clang::CallExpr::arg_range

Definition at line 2238 of file Expr.h.

Definition at line 2237 of file Expr.h.

Constructor & Destructor Documentation

CallExpr::CallExpr ( const ASTContext C,
StmtClass  SC,
Expr fn,
unsigned  NumPreArgs,
ArrayRef< Expr * >  args,
QualType  t,
ExprValueKind  VK,
SourceLocation  rparenloc 
)
protected
CallExpr::CallExpr ( const ASTContext C,
StmtClass  SC,
unsigned  NumPreArgs,
EmptyShell  Empty 
)
protected

Definition at line 1152 of file Expr.cpp.

References AttributeLangSupport::C.

CallExpr::CallExpr ( const ASTContext C,
Expr fn,
ArrayRef< Expr * >  args,
QualType  t,
ExprValueKind  VK,
SourceLocation  rparenloc 
)

Definition at line 1144 of file Expr.cpp.

CallExpr::CallExpr ( const ASTContext C,
StmtClass  SC,
EmptyShell  Empty 
)

Build an empty call expression.

Definition at line 1149 of file Expr.cpp.

Member Function Documentation

arg_iterator clang::CallExpr::arg_begin ( )
inline
const_arg_iterator clang::CallExpr::arg_begin ( ) const
inline

Definition at line 2250 of file Expr.h.

References getNumPreArgs().

arg_iterator clang::CallExpr::arg_end ( )
inline
const_arg_iterator clang::CallExpr::arg_end ( ) const
inline

Definition at line 2253 of file Expr.h.

References getNumArgs(), and getNumPreArgs().

arg_range clang::CallExpr::arguments ( )
inline

Definition at line 2241 of file Expr.h.

References arg_begin(), and arg_end().

arg_const_range clang::CallExpr::arguments ( ) const
inline

Definition at line 2242 of file Expr.h.

References arg_begin(), and arg_end().

child_range clang::CallExpr::children ( )
inline

Definition at line 2295 of file Expr.h.

References getNumPreArgs().

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

Definition at line 2289 of file Expr.h.

Expr* clang::CallExpr::getArg ( unsigned  Arg)
inline

getArg - Return the specified argument.

Definition at line 2216 of file Expr.h.

References getNumPreArgs().

Referenced by checkArgCount(), checkBuiltinArgument(), checkFormatStringExpr(), CheckMoveOnConstruction(), clang::Sema::DiagnoseSelfMove(), DiagnoseShiftCompare(), clang::CodeGen::CodeGenFunction::EmitAArch64BuiltinExpr(), EmitAArch64TblBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitAMDGPUBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitARMBuiltinExpr(), EmitBinaryAtomicPost(), clang::CodeGen::CodeGenFunction::EmitBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCommonNeonBuiltinExpr(), EmitCommonNeonSISDBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCXXOperatorMemberCallExpr(), emitFPIntBuiltin(), clang::CodeGen::CodeGenFunction::EmitNVPTXBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitPPCBuiltinExpr(), EmitSpecialRegisterBuiltin(), clang::CodeGen::CodeGenFunction::EmitSystemZBuiltinExpr(), EmitSystemZIntrinsicWithCC(), emitTernaryFPBuiltin(), emitUnaryFPBuiltin(), clang::CodeGen::CodeGenFunction::EmitX86BuiltinExpr(), EvaluateBuiltinClassifyType(), findCapturingExpr(), clang::ento::SimpleFunctionCall::getArgExpr(), getArgumentValueString(), clang::UserDefinedLiteral::getCookedLiteral(), getLocEnd(), clang::UserDefinedLiteral::getLocStart(), getLocStart(), clang::consumed::ConsumedStmtVisitor::handleCall(), clang::Expr::isUnusedResultAWarning(), MakeAtomicCmpXchgValue(), MakeBinaryAtomicValue(), SemaBuiltinAddressof(), SemaBuiltinAnnotation(), SemaBuiltinCallWithStaticChain(), SemaBuiltinMemChkCall(), clang::Sema::SemaBuiltinShuffleVector(), clang::ento::ExprEngine::Visit(), clang::ASTNodeImporter::VisitCallExpr(), clang::consumed::ConsumedStmtVisitor::VisitCallExpr(), and clang::consumed::ConsumedStmtVisitor::VisitCXXOperatorCallExpr().

const Expr* clang::CallExpr::getArg ( unsigned  Arg) const
inline

Definition at line 2220 of file Expr.h.

References getNumPreArgs().

Expr** clang::CallExpr::getArgs ( )
inline

Retrieve the call arguments.

Definition at line 2208 of file Expr.h.

References getNumPreArgs().

Referenced by clang::Sema::BuildResolvedCallExpr(), and getArgs().

const Expr* const* clang::CallExpr::getArgs ( ) const
inline

Definition at line 2211 of file Expr.h.

References getArgs().

unsigned CallExpr::getBuiltinCallee ( ) const

getBuiltinCallee - If this is a call to a builtin, return the builtin ID of the callee. If not, return 0.

getBuiltinCallee - If this is a call to a builtin, return the builtin ID. If not, return 0.

Definition at line 1219 of file Expr.cpp.

References clang::FunctionDecl::getBuiltinID(), getCallee(), clang::DeclRefExpr::getDecl(), clang::NamedDecl::getIdentifier(), and clang::CastExpr::getSubExpr().

Referenced by CheckICE(), IsStringLiteralCall(), and isUnevaluatedBuiltinCall().

const Expr* clang::CallExpr::getCallee ( ) const
inline
Expr* clang::CallExpr::getCallee ( )
inline

Definition at line 2189 of file Expr.h.

Decl * CallExpr::getCalleeDecl ( )
const Decl* clang::CallExpr::getCalleeDecl ( ) const
inline

Definition at line 2193 of file Expr.h.

References getCalleeDecl().

QualType CallExpr::getCallReturnType ( const ASTContext Ctx) const
FunctionDecl * CallExpr::getDirectCallee ( )
const FunctionDecl* clang::CallExpr::getDirectCallee ( ) const
inline

Definition at line 2199 of file Expr.h.

References getDirectCallee().

SourceLocation CallExpr::getLocEnd ( ) const
SourceLocation CallExpr::getLocStart ( ) const
unsigned clang::CallExpr::getNumArgs ( ) const
inline
unsigned clang::CallExpr::getNumCommas ( ) const
inline

getNumCommas - Return the number of commas that must have been present in this function call.

Definition at line 2268 of file Expr.h.

unsigned clang::CallExpr::getNumPreArgs ( ) const
inlineprotected
Stmt* clang::CallExpr::getPreArg ( unsigned  i)
inlineprotected

Definition at line 2166 of file Expr.h.

References getNumPreArgs().

Referenced by clang::CUDAKernelCallExpr::getConfig().

const Stmt* clang::CallExpr::getPreArg ( unsigned  i) const
inlineprotected

Definition at line 2170 of file Expr.h.

References getNumPreArgs().

ArrayRef<Stmt*> clang::CallExpr::getRawSubExprs ( )
inline

This method provides fast access to all the subexpressions of a CallExpr without going through the slower virtual child_iterator interface. This provides efficient reverse iteration of the subexpressions. This is currently used for CFG construction.

Definition at line 2261 of file Expr.h.

References getNumArgs(), and getNumPreArgs().

SourceLocation clang::CallExpr::getRParenLoc ( ) const
inline
bool CallExpr::isUnevaluatedBuiltinCall ( const ASTContext Ctx) const

Returns true if this is a call to a builtin which does not evaluate side-effects within its arguments.

Definition at line 1241 of file Expr.cpp.

References clang::ASTContext::BuiltinInfo, getBuiltinCallee(), and clang::Builtin::Context::isUnevaluated().

Referenced by clang::EvaluatedExprVisitorBase< make_ptr, ImplClass >::VisitCallExpr().

void clang::CallExpr::setArg ( unsigned  Arg,
Expr ArgExpr 
)
inline
void clang::CallExpr::setCallee ( Expr F)
inline

Definition at line 2190 of file Expr.h.

Referenced by clang::Sema::BuildResolvedCallExpr(), and SemaBuiltinCallWithStaticChain().

void CallExpr::setNumArgs ( const ASTContext C,
unsigned  NumArgs 
)

setNumArgs - This changes the number of arguments present in this call. Any orphaned expressions are deleted by this, and any new operands are set to null.

Definition at line 1191 of file Expr.cpp.

References AttributeLangSupport::C, clang::ASTContext::Deallocate(), getNumArgs(), and getNumPreArgs().

Referenced by clang::Sema::BuildCallToObjectOfClassType(), and clang::Sema::ConvertArgumentsForCall().

void clang::CallExpr::setPreArg ( unsigned  i,
Stmt PreArg 
)
inlineprotected

Definition at line 2174 of file Expr.h.

References getNumPreArgs().

Referenced by clang::CUDAKernelCallExpr::setConfig().

void clang::CallExpr::setRParenLoc ( SourceLocation  L)
inline

Definition at line 2284 of file Expr.h.


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