clang  10.0.0svn
Public Types | Public Member Functions | Static Public Member Functions | Static Public Attributes | Protected Member Functions | Static Protected Member Functions | List of all members
clang::CallExpr Class Reference

CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). More...

#include "clang/AST/Expr.h"

Inheritance diagram for clang::CallExpr:
Inheritance graph
[legend]
Collaboration diagram for clang::CallExpr:
Collaboration graph
[legend]

Public Types

enum  ADLCallKind : bool { ADLCallKind::NotADL, ADLCallKind::UsesADL }
 
typedef ExprIterator arg_iterator
 
typedef ConstExprIterator const_arg_iterator
 
typedef llvm::iterator_range< arg_iteratorarg_range
 
typedef llvm::iterator_range< const_arg_iteratorconst_arg_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_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  ConstExprUsage { EvaluateForCodeGen, EvaluateForMangling }
 Indicates how the constant expression will be used. More...
 
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 }
 
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

ExprgetCallee ()
 
const ExprgetCallee () const
 
void setCallee (Expr *F)
 
ADLCallKind getADLCallKind () const
 
void setADLCallKind (ADLCallKind V=UsesADL)
 
bool usesADL () const
 
DeclgetCalleeDecl ()
 
const DeclgetCalleeDecl () const
 
FunctionDeclgetDirectCallee ()
 If the callee is a FunctionDecl, return it. Otherwise return null. More...
 
const FunctionDeclgetDirectCallee () const
 
unsigned getNumArgs () const
 getNumArgs - Return the number of actual arguments to this call. More...
 
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 shrinkNumArgs (unsigned NewNumArgs)
 Reduce the number of arguments in this call expression. More...
 
void setNumArgsUnsafe (unsigned NewNumArgs)
 Bluntly set a new number of arguments without doing any checks whatsoever. More...
 
arg_range arguments ()
 
const_arg_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 ()
 This method provides fast access to all the subexpressions of a CallExpr without going through the slower virtual child_iterator interface. More...
 
unsigned getNumCommas () const
 getNumCommas - Return the number of commas that must have been present in this function call. More...
 
unsigned getBuiltinCallee () const
 getBuiltinCallee - If this is a call to a builtin, return the builtin ID of the callee. More...
 
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
 getCallReturnType - Get the return type of the call expr. More...
 
const AttrgetUnusedResultAttr (const ASTContext &Ctx) const
 Returns the WarnUnusedResultAttr that is either declared on the called function, or its return type declaration. More...
 
bool hasUnusedResultAttr (const ASTContext &Ctx) const
 Returns true if this call expression should warn on unused results. More...
 
SourceLocation getRParenLoc () const
 
void setRParenLoc (SourceLocation L)
 
SourceLocation getBeginLoc () const LLVM_READONLY
 
SourceLocation getEndLoc () const LLVM_READONLY
 
bool isBuiltinAssumeFalse (const ASTContext &Ctx) const
 Return true if this is a call to __assume() or __builtin_assume() with a non-value-dependent constant parameter evaluating as false. More...
 
bool isCallToStdMove () const
 
child_range children ()
 
const_child_range children () const
 
- Public Member Functions inherited from clang::Expr
 Expr ()=delete
 
 Expr (const Expr &)=delete
 
 Expr (Expr &&)=delete
 
Exproperator= (const Expr &)=delete
 
Exproperator= (Expr &&)=delete
 
QualType getType () const
 
void setType (QualType t)
 
bool isValueDependent () const
 isValueDependent - Determines whether this expression is value-dependent (C++ [temp.dep.constexpr]). More...
 
void setValueDependent (bool VD)
 Set whether this expression is value-dependent or not. More...
 
bool isTypeDependent () const
 isTypeDependent - Determines whether this expression is type-dependent (C++ [temp.dep.expr]), which means that its type could change from one template instantiation to the next. More...
 
void setTypeDependent (bool TD)
 Set whether this expression is type-dependent or not. More...
 
bool isInstantiationDependent () const
 Whether this expression is instantiation-dependent, meaning that it depends in some way on a template parameter, even if neither its type nor (constant) value can change due to the template instantiation. More...
 
void setInstantiationDependent (bool ID)
 Set whether this expression is instantiation-dependent or not. More...
 
bool containsUnexpandedParameterPack () const
 Whether this expression contains an unexpanded parameter pack (for C++11 variadic templates). More...
 
void setContainsUnexpandedParameterPack (bool PP=true)
 Set the bit that describes whether this expression contains an unexpanded parameter pack. More...
 
SourceLocation getExprLoc () const LLVM_READONLY
 getExprLoc - Return the preferred location for the arrow when diagnosing a problem with a generic expression. More...
 
bool isUnusedResultAWarning (const Expr *&WarnExpr, SourceLocation &Loc, SourceRange &R1, SourceRange &R2, ASTContext &Ctx) const
 isUnusedResultAWarning - Return true if this immediate expression should be warned about if the result is unused. More...
 
bool isLValue () const
 isLValue - True if this expression is an "l-value" according to the rules of the current language. More...
 
bool isRValue () const
 
bool isXValue () const
 
bool isGLValue () const
 
LValueClassification ClassifyLValue (ASTContext &Ctx) const
 Reasons why an expression might not be an l-value. More...
 
isModifiableLvalueResult isModifiableLvalue (ASTContext &Ctx, SourceLocation *Loc=nullptr) const
 isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, does not have an incomplete type, does not have a const-qualified type, and if it is a structure or union, does not have any member (including, recursively, any member or element of all contained aggregates or unions) with a const-qualified type. More...
 
Classification Classify (ASTContext &Ctx) const
 Classify - Classify this expression according to the C++11 expression taxonomy. More...
 
Classification ClassifyModifiable (ASTContext &Ctx, SourceLocation &Loc) const
 ClassifyModifiable - Classify this expression according to the C++11 expression taxonomy, and see if it is valid on the left side of an assignment. More...
 
ExprValueKind getValueKind () const
 getValueKind - The value kind that this expression produces. More...
 
ExprObjectKind getObjectKind () const
 getObjectKind - The object kind that this expression produces. More...
 
bool isOrdinaryOrBitFieldObject () const
 
void setValueKind (ExprValueKind Cat)
 setValueKind - Set the value kind produced by this expression. More...
 
void setObjectKind (ExprObjectKind Cat)
 setObjectKind - Set the object kind produced by this expression. More...
 
bool refersToBitField () const
 Returns true if this expression is a gl-value that potentially refers to a bit-field. More...
 
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 refersToGlobalRegisterVar () const
 Returns whether this expression refers to a global register variable. More...
 
bool hasPlaceholderType () const
 Returns whether this expression has a placeholder type. More...
 
bool hasPlaceholderType (BuiltinType::Kind K) const
 Returns whether this expression has a specific placeholder type. More...
 
bool isKnownToHaveBooleanValue () const
 isKnownToHaveBooleanValue - Return true if this is an integer expression that is known to return 0 or 1. More...
 
bool isIntegerConstantExpr (llvm::APSInt &Result, const ASTContext &Ctx, SourceLocation *Loc=nullptr, bool isEvaluated=true) const
 isIntegerConstantExpr - Return true if this expression is a valid integer constant expression, and, if so, return its value in Result. More...
 
bool isIntegerConstantExpr (const ASTContext &Ctx, SourceLocation *Loc=nullptr) const
 
bool isCXX98IntegralConstantExpr (const ASTContext &Ctx) const
 isCXX98IntegralConstantExpr - Return true if this expression is an integral constant expression in C++98. More...
 
bool isCXX11ConstantExpr (const ASTContext &Ctx, APValue *Result=nullptr, SourceLocation *Loc=nullptr) const
 isCXX11ConstantExpr - Return true if this expression is a constant expression in C++11. More...
 
bool isConstantInitializer (ASTContext &Ctx, bool ForRef, const Expr **Culprit=nullptr) const
 isConstantInitializer - Returns true if this expression can be emitted to IR as a constant, and thus can be used as a constant initializer in C. More...
 
bool EvaluateAsRValue (EvalResult &Result, const ASTContext &Ctx, 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) 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, ConstExprUsage Usage, const ASTContext &Ctx) 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...
 
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...
 
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
 
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
 
ExprIgnoreConversionOperator () LLVM_READONLY
 Skip conversion operators. More...
 
const ExprIgnoreConversionOperator () 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
 
bool isOMPStructuredBlock () const
 
void setIsOMPStructuredBlock (bool IsOMPStructuredBlock)
 
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 (SourceManager &SM) const
 
void dump (raw_ostream &OS, SourceManager &SM) const
 
void dump (raw_ostream &OS) 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="\, 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 CallExprCreate (const ASTContext &Ctx, Expr *Fn, ArrayRef< Expr *> Args, QualType Ty, ExprValueKind VK, SourceLocation RParenLoc, unsigned MinNumArgs=0, ADLCallKind UsesADL=NotADL)
 Create a call expression. More...
 
static CallExprCreateTemporary (void *Mem, Expr *Fn, QualType Ty, ExprValueKind VK, SourceLocation RParenLoc, ADLCallKind UsesADL=NotADL)
 Create a temporary call expression with no arguments in the memory pointed to by Mem. More...
 
static CallExprCreateEmpty (const ASTContext &Ctx, unsigned NumArgs, EmptyShell Empty)
 Create an empty call expression, for deserialization. More...
 
static bool classof (const Stmt *T)
 
- Static Public Member Functions inherited from clang::Expr
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 Public Attributes

static constexpr ADLCallKind NotADL = ADLCallKind::NotADL
 
static constexpr ADLCallKind UsesADL = ADLCallKind::UsesADL
 

Protected Member Functions

 CallExpr (StmtClass SC, Expr *Fn, ArrayRef< Expr *> PreArgs, ArrayRef< Expr *> Args, QualType Ty, ExprValueKind VK, SourceLocation RParenLoc, unsigned MinNumArgs, ADLCallKind UsesADL)
 Build a call expression, assuming that appropriate storage has been allocated for the trailing objects. More...
 
 CallExpr (StmtClass SC, unsigned NumPreArgs, unsigned NumArgs, EmptyShell Empty)
 Build an empty call expression, for deserialization. More...
 
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...
 
- 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...
 

Static Protected Member Functions

static unsigned sizeOfTrailingObjects (unsigned NumPreArgs, unsigned NumArgs)
 Return the size in bytes needed for the trailing objects. More...
 

Additional Inherited Members

- Protected Types inherited from clang::Stmt
enum  { NumStmtBits = 9 }
 
enum  { NumExprBits = NumStmtBits + 9 }
 
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
 
   ArraySubscriptExprBitfields   ArraySubscriptExprBits
 
   CallExprBitfields   CallExprBits
 
   MemberExprBitfields   MemberExprBits
 
   CastExprBitfields   CastExprBits
 
   BinaryOperatorBitfields   BinaryOperatorBits
 
   InitListExprBitfields   InitListExprBits
 
   ParenListExprBitfields   ParenListExprBits
 
   GenericSelectionExprBitfields   GenericSelectionExprBits
 
   PseudoObjectExprBitfields   PseudoObjectExprBits
 
   SourceLocExprBitfields   SourceLocExprBits
 
   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
 
   CoawaitExprBitfields   CoawaitBits
 
   ObjCIndirectCopyRestoreExprBitfields   ObjCIndirectCopyRestoreExprBits
 
   OpaqueValueExprBitfields   OpaqueValueExprBits
 
}; 
 

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 2521 of file Expr.h.

Member Typedef Documentation

◆ arg_iterator

Definition at line 2709 of file Expr.h.

◆ arg_range

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

Definition at line 2711 of file Expr.h.

◆ const_arg_iterator

Definition at line 2710 of file Expr.h.

◆ const_arg_range

Definition at line 2712 of file Expr.h.

Member Enumeration Documentation

◆ ADLCallKind

Enumerator
NotADL 
UsesADL 

Definition at line 2568 of file Expr.h.

Constructor & Destructor Documentation

◆ CallExpr() [1/2]

CallExpr::CallExpr ( StmtClass  SC,
Expr Fn,
ArrayRef< Expr *>  PreArgs,
ArrayRef< Expr *>  Args,
QualType  Ty,
ExprValueKind  VK,
SourceLocation  RParenLoc,
unsigned  MinNumArgs,
ADLCallKind  UsesADL 
)
protected

Build a call expression, assuming that appropriate storage has been allocated for the trailing objects.

Definition at line 1335 of file Expr.cpp.

References clang::Stmt::CallExprBits, getNumPreArgs(), setArg(), setCallee(), setPreArg(), and UsesADL.

Referenced by Create(), CreateEmpty(), and CreateTemporary().

◆ CallExpr() [2/2]

CallExpr::CallExpr ( StmtClass  SC,
unsigned  NumPreArgs,
unsigned  NumArgs,
EmptyShell  Empty 
)
protected

Build an empty call expression, for deserialization.

Definition at line 1369 of file Expr.cpp.

References clang::Stmt::CallExprBits, and getNumPreArgs().

Member Function Documentation

◆ arg_begin() [1/2]

arg_iterator clang::CallExpr::arg_begin ( )
inline

◆ arg_begin() [2/2]

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

Definition at line 2724 of file Expr.h.

◆ arg_end() [1/2]

arg_iterator clang::CallExpr::arg_end ( )
inline

◆ arg_end() [2/2]

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

Definition at line 2727 of file Expr.h.

◆ arguments() [1/2]

arg_range clang::CallExpr::arguments ( )
inline

◆ arguments() [2/2]

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

Definition at line 2715 of file Expr.h.

◆ children() [1/2]

child_range clang::CallExpr::children ( )
inline

◆ children() [2/2]

const_child_range clang::CallExpr::children ( ) const
inline

Definition at line 2791 of file Expr.h.

◆ classof()

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

Definition at line 2780 of file Expr.h.

References clang::Stmt::getStmtClass().

◆ Create()

CallExpr * CallExpr::Create ( const ASTContext Ctx,
Expr Fn,
ArrayRef< Expr *>  Args,
QualType  Ty,
ExprValueKind  VK,
SourceLocation  RParenLoc,
unsigned  MinNumArgs = 0,
ADLCallKind  UsesADL = NotADL 
)
static

Create a call expression.

Fn is the callee expression, Args is the argument array, Ty is the type of the call expression (which is not the return type in general), VK is the value kind of the call expression (lvalue, rvalue, ...), and RParenLoc is the location of the right parenthese in the call expression. MinNumArgs specifies the minimum number of arguments. The actual number of arguments will be the greater of Args.size() and MinNumArgs. This is used in a few places to allocate enough storage for the default arguments. UsesADL specifies whether the callee was found through argument-dependent lookup.

Note that you can use CreateTemporary if you need a temporary call expression on the stack.

Definition at line 1381 of file Expr.cpp.

References clang::ASTContext::Allocate(), CallExpr(), sizeOfTrailingObjects(), and UsesADL.

Referenced by clang::Sema::BuildCallExpr(), clang::Sema::buildOverloadedCallSet(), create_dispatch_once(), create_dispatch_sync(), clang::TreeTransform< Derived >::RebuildShuffleVectorExpr(), and clang::ASTNodeImporter::VisitCallExpr().

◆ CreateEmpty()

CallExpr * CallExpr::CreateEmpty ( const ASTContext Ctx,
unsigned  NumArgs,
EmptyShell  Empty 
)
static

◆ CreateTemporary()

CallExpr * CallExpr::CreateTemporary ( void *  Mem,
Expr Fn,
QualType  Ty,
ExprValueKind  VK,
SourceLocation  RParenLoc,
ADLCallKind  UsesADL = NotADL 
)
static

Create a temporary call expression with no arguments in the memory pointed to by Mem.

Mem must points to at least sizeof(CallExpr)

alignas(CallExpr) char Buffer[sizeof(CallExpr) + sizeof(Stmt *)];
CallExpr *TheCall = CallExpr::CreateTemporary(Buffer, etc);

Definition at line 1394 of file Expr.cpp.

References CallExpr(), and UsesADL.

◆ getADLCallKind()

ADLCallKind clang::CallExpr::getADLCallKind ( ) const
inline

Definition at line 2642 of file Expr.h.

Referenced by clang::ASTNodeImporter::VisitCallExpr().

◆ getArg() [1/2]

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

getArg - Return the specified argument.

Definition at line 2677 of file Expr.h.

Referenced by checkBuiltinArgument(), checkFormatStringExpr(), CheckImplicitArgumentConversions(), CheckImplicitConversion(), CheckMemaccessSize(), CheckMoveOnConstruction(), checkOpenCLEnqueueLocalSizeArgs(), checkOpenCLPipeArg(), checkOpenCLPipePacketType(), checkVAStartIsInVariadicFunction(), clang::analyze_os_log::computeOSLogBufferLayout(), DecodeOperatorCall(), clang::Sema::DiagnoseSelfMove(), DiagnoseShiftCompare(), EmitAArch64TblBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitAMDGPUBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitARMBuiltinExpr(), EmitAtomicCmpXchgForMSIntrin(), EmitAtomicDecrementValue(), EmitAtomicIncrementValue(), EmitBinaryAtomicPost(), emitBinaryBuiltin(), EmitBitTestIntrinsic(), clang::CodeGen::CodeGenFunction::EmitBPFBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitBuiltinExpr(), clang::CodeGen::CodeGenFunction::emitBuiltinOSLogFormat(), clang::CodeGen::CodeGenFunction::EmitCommonNeonBuiltinExpr(), EmitCommonNeonSISDBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCXXOperatorMemberCallExpr(), emitFPIntBuiltin(), emitFPToIntRoundBuiltin(), clang::CodeGen::CodeGenFunction::EmitHexagonBuiltinExpr(), EmitISOVolatileLoad(), EmitISOVolatileStore(), clang::CodeGen::CodeGenFunction::EmitMSVCBuiltinExpr(), EmitNontemporalLoad(), EmitNontemporalStore(), clang::CodeGen::CodeGenFunction::EmitNVPTXBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitPPCBuiltinExpr(), clang::CodeGen::CodeGenFunction::emitRotate(), clang::CodeGen::CodeGenFunction::EmitSystemZBuiltinExpr(), EmitSystemZIntrinsicWithCC(), emitTernaryBuiltin(), emitUnaryBuiltin(), clang::CodeGen::CodeGenFunction::EmitWebAssemblyBuiltinExpr(), EmitX86AddSubSatExpr(), EmitX86BitTestIntrinsic(), clang::CodeGen::CodeGenFunction::EmitX86BuiltinExpr(), EvaluateBuiltinClassifyType(), findCapturingExpr(), findOpenParen(), GetAlignOfExpr(), getArgumentValueString(), getAsPointeeSymbol(), clang::UserDefinedLiteral::getBeginLoc(), getBeginLoc(), getBytesReturnedByAllocSizeCall(), GetCFNumberSize(), getEndLoc(), clang::CXXUnresolvedConstructExpr::getEndLoc(), getFreeWhenDoneArg(), getPrintfFormatArgumentNum(), getStrlenExprArg(), HandleOperatorDeleteCall(), HandleOperatorNewCall(), isPointerToConst(), IsStdFunction(), clang::Expr::isUnusedResultAWarning(), LazyInitialize(), MakeAtomicCmpXchgValue(), MakeBinaryAtomicValue(), MallocUpdateRefState(), printExpectedDeallocName(), PrintFloatingLiteral(), resolveBuiltinNewDeleteOverload(), SemaBuiltinCommitRWPipe(), SemaBuiltinCpuIs(), SemaBuiltinCpuSupports(), SemaBuiltinLaunder(), SemaBuiltinPipePackets(), SemaBuiltinReserveRWPipe(), SemaBuiltinRWPipe(), clang::Sema::SemaBuiltinShuffleVector(), SemaOpenCLBuiltinEnqueueKernel(), SemaOpenCLBuiltinToAddr(), tryEvaluateBuiltinObjectSize(), clang::consumed::ConsumedStmtVisitor::VisitCallExpr(), and clang::consumed::ConsumedStmtVisitor::VisitCXXOperatorCallExpr().

◆ getArg() [2/2]

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

Definition at line 2681 of file Expr.h.

◆ getArgs() [1/2]

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

◆ getArgs() [2/2]

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

Definition at line 2671 of file Expr.h.

◆ getBeginLoc()

SourceLocation CallExpr::getBeginLoc ( ) const

◆ getBuiltinCallee()

unsigned CallExpr::getBuiltinCallee ( ) const

getBuiltinCallee - If this is a call to a builtin, return the builtin ID of the callee.

getBuiltinCallee - If this is a call to a builtin, return the builtin ID.

If not, return 0.

Definition at line 1468 of file Expr.cpp.

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

Referenced by CheckICE(), clang::analyze_os_log::computeOSLogBufferLayout(), clang::CodeGen::CodeGenFunction::EmitNVPTXDevicePrintfCallExpr(), EvaluateAtomic(), GetAlignOfExpr(), IsStringLiteralCall(), isUnevaluatedBuiltinCall(), and tryEvaluateBuiltinObjectSize().

◆ getCallee() [1/2]

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

◆ getCallee() [2/2]

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

Definition at line 2639 of file Expr.h.

◆ getCalleeDecl() [1/2]

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

◆ getCalleeDecl() [2/2]

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

Definition at line 2651 of file Expr.h.

◆ getCallReturnType()

QualType CallExpr::getCallReturnType ( const ASTContext Ctx) const

◆ getDirectCallee() [1/2]

FunctionDecl* clang::CallExpr::getDirectCallee ( )
inline

◆ getDirectCallee() [2/2]

const FunctionDecl* clang::CallExpr::getDirectCallee ( ) const
inline

Definition at line 2659 of file Expr.h.

◆ getEndLoc()

SourceLocation CallExpr::getEndLoc ( ) const

◆ getNumArgs()

unsigned clang::CallExpr::getNumArgs ( ) const
inline

getNumArgs - Return the number of actual arguments to this call.

Definition at line 2664 of file Expr.h.

Referenced by clang::CXXConstructExpr::arg_end(), checkBuiltinArgument(), CheckImplicitArgumentConversions(), CheckImplicitConversion(), CheckMemaccessSize(), checkOpenCLEnqueueVariadicArgs(), checkVAStartIsInVariadicFunction(), clang::CXXConstructExpr::children(), clang::analyze_os_log::computeOSLogBufferLayout(), DecodeOperatorCall(), clang::Sema::DiagnoseSelfMove(), EmitAArch64TblBuiltinExpr(), clang::CodeGen::CodeGenFunction::emitBuiltinOSLogFormat(), clang::CodeGen::CodeGenFunction::EmitCommonNeonBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitNVPTXDevicePrintfCallExpr(), clang::CodeGen::CodeGenFunction::EmitPPCBuiltinExpr(), EmitSystemZIntrinsicWithCC(), clang::CodeGen::CodeGenFunction::EmitX86BuiltinExpr(), EvaluateBuiltinClassifyType(), findCapturingExpr(), findOpenParen(), GetAlignOfExpr(), clang::CXXConstructExpr::getArg(), clang::TypeTraitExpr::getArg(), clang::TypeTraitExpr::getArgs(), getArgumentValueString(), getAsPointeeSymbol(), getBeginLoc(), getBytesReturnedByAllocSizeCall(), GetCFNumberSize(), getEndLoc(), getPrintfFormatArgumentNum(), getStrlenExprArg(), HandleOperatorDeleteCall(), HandleOperatorNewCall(), clang::CXXOperatorCallExpr::isInfixBinaryOp(), isParenthesizedADLCallee(), isReleased(), IsStdFunction(), clang::Expr::isUnusedResultAWarning(), isValidOrderingForOp(), LazyInitialize(), MallocUpdateRefState(), printExpectedDeallocName(), PrintFloatingLiteral(), resolveBuiltinNewDeleteOverload(), SemaBuiltinRWPipe(), clang::Sema::SemaBuiltinShuffleVector(), SemaOpenCLBuiltinEnqueueKernel(), SemaOpenCLBuiltinToAddr(), clang::CXXConstructExpr::setArg(), clang::ASTNodeImporter::VisitCallExpr(), and clang::ASTNodeImporter::VisitCXXMemberCallExpr().

◆ getNumCommas()

unsigned clang::CallExpr::getNumCommas ( ) const
inline

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

Definition at line 2740 of file Expr.h.

◆ getNumPreArgs()

unsigned clang::CallExpr::getNumPreArgs ( ) const
inlineprotected

Definition at line 2602 of file Expr.h.

References clang::Create(), and clang::CreateEmpty().

Referenced by CallExpr().

◆ getPreArg() [1/2]

Stmt* clang::CallExpr::getPreArg ( unsigned  I)
inlineprotected

Definition at line 2589 of file Expr.h.

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

◆ getPreArg() [2/2]

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

Definition at line 2593 of file Expr.h.

◆ getRawSubExprs()

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 2733 of file Expr.h.

◆ getRParenLoc()

SourceLocation clang::CallExpr::getRParenLoc ( ) const
inline

◆ getUnusedResultAttr()

const Attr * CallExpr::getUnusedResultAttr ( const ASTContext Ctx) const

Returns the WarnUnusedResultAttr that is either declared on the called function, or its return type declaration.

Definition at line 1515 of file Expr.cpp.

References clang::Decl::getAttr(), getCalleeDecl(), and getCallReturnType().

◆ hasUnusedResultAttr()

bool clang::CallExpr::hasUnusedResultAttr ( const ASTContext Ctx) const
inline

Returns true if this call expression should warn on unused results.

Definition at line 2760 of file Expr.h.

Referenced by clang::Expr::isUnusedResultAWarning().

◆ isBuiltinAssumeFalse()

bool CallExpr::isBuiltinAssumeFalse ( const ASTContext Ctx) const

Return true if this is a call to __assume() or __builtin_assume() with a non-value-dependent constant parameter evaluating as false.

Definition at line 3309 of file Expr.cpp.

References clang::Expr::EvaluateAsBooleanCondition(), clang::FunctionDecl::getBuiltinID(), clang::Expr::HasSideEffects(), and clang::Expr::isValueDependent().

◆ isCallToStdMove()

bool clang::CallExpr::isCallToStdMove ( ) const
inline

◆ isUnevaluatedBuiltinCall()

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 1490 of file Expr.cpp.

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

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

◆ setADLCallKind()

void clang::CallExpr::setADLCallKind ( ADLCallKind  V = UsesADL)
inline

Definition at line 2645 of file Expr.h.

References V.

◆ setArg()

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

setArg - Set the specified argument.

Definition at line 2687 of file Expr.h.

Referenced by CallExpr(), checkBuiltinArgument(), resolveBuiltinNewDeleteOverload(), and SemaBuiltinLaunder().

◆ setCallee()

void clang::CallExpr::setCallee ( Expr F)
inline

Definition at line 2640 of file Expr.h.

Referenced by CallExpr().

◆ setNumArgsUnsafe()

void clang::CallExpr::setNumArgsUnsafe ( unsigned  NewNumArgs)
inline

Bluntly set a new number of arguments without doing any checks whatsoever.

Only used during construction of a CallExpr in a few places in Sema. FIXME: Find a way to remove it.

Definition at line 2707 of file Expr.h.

◆ setPreArg()

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

Definition at line 2597 of file Expr.h.

Referenced by CallExpr().

◆ setRParenLoc()

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

Definition at line 2765 of file Expr.h.

References isBuiltinAssumeFalse().

◆ shrinkNumArgs()

void clang::CallExpr::shrinkNumArgs ( unsigned  NewNumArgs)
inline

Reduce the number of arguments in this call expression.

This is used for example during error recovery to drop extra arguments. There is no way to perform the opposite because: 1.) We don't track how much storage we have for the argument array 2.) This would potentially require growing the argument array, something we cannot support since the arguments are stored in a trailing array.

Definition at line 2698 of file Expr.h.

◆ sizeOfTrailingObjects()

static unsigned clang::CallExpr::sizeOfTrailingObjects ( unsigned  NumPreArgs,
unsigned  NumArgs 
)
inlinestaticprotected

◆ usesADL()

bool clang::CallExpr::usesADL ( ) const
inline

Member Data Documentation

◆ NotADL

constexpr ADLCallKind clang::CallExpr::NotADL = ADLCallKind::NotADL
static

Definition at line 2569 of file Expr.h.

◆ UsesADL

constexpr ADLCallKind clang::CallExpr::UsesADL = ADLCallKind::UsesADL
static

Definition at line 2570 of file Expr.h.

Referenced by CallExpr(), Create(), and CreateTemporary().


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