clang 8.0.0

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:
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Collaboration diagram for clang::CallExpr:
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## Public Types
enum | ADLCallKind : bool { ADLCallKind::NotADL, ADLCallKind::UsesADL }
typedef ExprIterator | arg_iterator
typedef ConstExprIterator | const_arg_iterator
typedef llvm::iterator_range< arg_iterator > | arg_range
typedef llvm::iterator_range< const_arg_iterator > | const_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
Expr * | getCallee ()
const Expr * | getCallee () const
void | setCallee (Expr *F)
ADLCallKind | getADLCallKind () const
void | setADLCallKind (ADLCallKind V=UsesADL)
bool | usesADL () const
Decl * | getCalleeDecl ()
const Decl * | getCalleeDecl () const
FunctionDecl * | getDirectCallee ()
| If the callee is a FunctionDecl, return it. Otherwise return null. More...
const FunctionDecl * | getDirectCallee () 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
Expr * | getArg (unsigned Arg)
| getArg - Return the specified argument. More...
const Expr * | getArg (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...
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 Attr * | getUnusedResultAttr (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
QualType | getType () const
void | setType (QualType t)
bool | isValueDependent () const
| isValueDependent - Determines whether this expression is value-dependent (C++ [temp.dep.constexpr]). More...
void | setValueDependent (bool VD)
| Set whether this expression is value-dependent or not. More...
bool | isTypeDependent () const
| isTypeDependent - Determines whether this expression is type-dependent (C++ [temp.dep.expr]), which means that its type could change from one template instantiation to the next. More...
void | setTypeDependent (bool TD)
| Set whether this expression is type-dependent or not. More...
bool | isInstantiationDependent () const
| Whether this expression is instantiation-dependent, meaning that it depends in some way on a template parameter, even if neither its type nor (constant) value can change due to the template instantiation. More...
void | setInstantiationDependent (bool ID)
| Set whether this expression is instantiation-dependent or not. More...
bool | containsUnexpandedParameterPack () const
| Whether this expression contains an unexpanded parameter pack (for C++11 variadic templates). More...
void | setContainsUnexpandedParameterPack (bool PP=true)
| Set the bit that describes whether this expression contains an unexpanded parameter pack. More...
SourceLocation | getExprLoc () const LLVM_READONLY
| getExprLoc - Return the preferred location for the arrow when diagnosing a problem with a generic expression. More...
bool | isUnusedResultAWarning (const Expr *&WarnExpr, SourceLocation &Loc, SourceRange &R1, SourceRange &R2, ASTContext &Ctx) const
| isUnusedResultAWarning - Return true if this immediate expression should be warned about if the result is unused. More...
bool | isLValue () const
| isLValue - True if this expression is an "l-value" according to the rules of the current language. More...
bool | isRValue () const
bool | isXValue () const
bool | isGLValue () const
LValueClassification | ClassifyLValue (ASTContext &Ctx) const
| Reasons why an expression might not be an l-value. More...
isModifiableLvalueResult | isModifiableLvalue (ASTContext &Ctx, SourceLocation *Loc=nullptr) const
| isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, does not have an incomplete type, does not have a const-qualified type, and if it is a structure or union, does not have any member (including, recursively, any member or element of all contained aggregates or unions) with a const-qualified type. More...
Classification | Classify (ASTContext &Ctx) const
| Classify - Classify this expression according to the C++11 expression taxonomy. More...
Classification | ClassifyModifiable (ASTContext &Ctx, SourceLocation &Loc) const
| ClassifyModifiable - Classify this expression according to the C++11 expression taxonomy, and see if it is valid on the left side of an assignment. More...
ExprValueKind | getValueKind () const
| getValueKind - The value kind that this expression produces. More...
ExprObjectKind | getObjectKind () const
| getObjectKind - The object kind that this expression produces. More...
bool | isOrdinaryOrBitFieldObject () const
void | setValueKind (ExprValueKind Cat)
| setValueKind - Set the value kind produced by this expression. More...
void | setObjectKind (ExprObjectKind Cat)
| setObjectKind - Set the object kind produced by this expression. More...
bool | refersToBitField () const
| Returns true if this expression is a gl-value that potentially refers to a bit-field. More...
FieldDecl * | getSourceBitField ()
| If this expression refers to a bit-field, retrieve the declaration of that bit-field. More...
const FieldDecl * | getSourceBitField () const
Decl * | getReferencedDeclOfCallee ()
const Decl * | getReferencedDeclOfCallee () const
const ObjCPropertyRefExpr * | getObjCProperty () const
| If this expression is an l-value for an Objective C property, find the underlying property reference expression. More...
bool | isObjCSelfExpr () const
| Check if this expression is the ObjC 'self' implicit parameter. More...
bool | refersToVectorElement () const
| Returns whether this expression refers to a vector element. More...
bool | refersToGlobalRegisterVar () const
| Returns whether this expression refers to a global register variable. More...
bool | hasPlaceholderType () const
| Returns whether this expression has a placeholder type. More...
bool | hasPlaceholderType (BuiltinType::Kind K) const
| Returns whether this expression has a specific placeholder type. More...
bool | isKnownToHaveBooleanValue () const
| isKnownToHaveBooleanValue - Return true if this is an integer expression that is known to return 0 or 1. More...
bool | isIntegerConstantExpr (llvm::APSInt &Result, const ASTContext &Ctx, SourceLocation *Loc=nullptr, bool isEvaluated=true) const
| isIntegerConstantExpr - Return true if this expression is a valid integer constant expression, and, if so, return its value in Result. More...
bool | isIntegerConstantExpr (const ASTContext &Ctx, SourceLocation *Loc=nullptr) const
bool | isCXX98IntegralConstantExpr (const ASTContext &Ctx) const
| isCXX98IntegralConstantExpr - Return true if this expression is an integral constant expression in C++98. More...
bool | isCXX11ConstantExpr (const ASTContext &Ctx, APValue *Result=nullptr, SourceLocation *Loc=nullptr) const
| isCXX11ConstantExpr - Return true if this expression is a constant expression in C++11. More...
bool | isConstantInitializer (ASTContext &Ctx, bool ForRef, const Expr **Culprit=nullptr) const
| isConstantInitializer - Returns true if this expression can be emitted to IR as a constant, and thus can be used as a constant initializer in C. More...
bool | EvaluateAsRValue (EvalResult &Result, const ASTContext &Ctx, 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) 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) const
| EvaluateAsInt - Return true if this is a constant which we can fold and convert to an integer, using any crazy technique that we want to. More...
bool | EvaluateAsFloat (llvm::APFloat &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const
| EvaluateAsFloat - Return true if this is a constant which we can fold and convert to a floating point value, using any crazy technique that we want to. More...
bool | isEvaluatable (const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const
| isEvaluatable - Call EvaluateAsRValue to see if this expression can be constant folded without side-effects, but discard the result. More...
bool | HasSideEffects (const ASTContext &Ctx, bool IncludePossibleEffects=true) const
| HasSideEffects - This routine returns true for all those expressions which have any effect other than producing a value. More...
bool | hasNonTrivialCall (const ASTContext &Ctx) const
| Determine whether this expression involves a call to any function that is not trivial. More...
llvm::APSInt | EvaluateKnownConstInt (const ASTContext &Ctx, SmallVectorImpl< PartialDiagnosticAt > *Diag=nullptr) const
| EvaluateKnownConstInt - Call EvaluateAsRValue and return the folded integer. More...
llvm::APSInt | EvaluateKnownConstIntCheckOverflow (const ASTContext &Ctx, SmallVectorImpl< PartialDiagnosticAt > *Diag=nullptr) const
void | EvaluateForOverflow (const ASTContext &Ctx) const
bool | EvaluateAsLValue (EvalResult &Result, const ASTContext &Ctx) const
| EvaluateAsLValue - Evaluate an expression to see if we can fold it to an lvalue with link time known address, with no side-effects. More...
bool | EvaluateAsInitializer (APValue &Result, const ASTContext &Ctx, const VarDecl *VD, SmallVectorImpl< PartialDiagnosticAt > &Notes) const
| EvaluateAsInitializer - Evaluate an expression as if it were the initializer of the given declaration. More...
bool | EvaluateWithSubstitution (APValue &Value, ASTContext &Ctx, const FunctionDecl *Callee, ArrayRef< const Expr *> Args, const 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...
Expr * | IgnoreImpCasts () LLVM_READONLY
| IgnoreImpCasts - Skip past any implicit casts which might surround this expression. More...
Expr * | IgnoreImplicit () LLVM_READONLY
| IgnoreImplicit - Skip past any implicit AST nodes which might surround this expression. More...
const Expr * | IgnoreImplicit () const LLVM_READONLY
Expr * | IgnoreParens () LLVM_READONLY
| IgnoreParens - Ignore parentheses. More...
Expr * | IgnoreParenCasts () LLVM_READONLY
| IgnoreParenCasts - Ignore parentheses and casts. More...
Expr * | IgnoreCasts () LLVM_READONLY
| Ignore casts. Strip off any CastExprs, returning their operand. More...
Expr * | IgnoreParenImpCasts () LLVM_READONLY
| IgnoreParenImpCasts - Ignore parentheses and implicit casts. More...
Expr * | IgnoreConversionOperator () LLVM_READONLY
| IgnoreConversionOperator - Ignore conversion operator. More...
const Expr * | IgnoreConversionOperator () const LLVM_READONLY
const Expr * | IgnoreParenImpCasts () const LLVM_READONLY
Expr * | IgnoreParenLValueCasts () LLVM_READONLY
| Ignore parentheses and lvalue casts. More...
const Expr * | IgnoreParenLValueCasts () const LLVM_READONLY
Expr * | IgnoreParenNoopCasts (ASTContext &Ctx) LLVM_READONLY
| IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the value (including ptr->int casts of the same size). More...
Expr * | ignoreParenBaseCasts () LLVM_READONLY
| Ignore parentheses and derived-to-base casts. More...
const Expr * | ignoreParenBaseCasts () const LLVM_READONLY
bool | isDefaultArgument () const
| Determine whether this expression is a default function argument. More...
bool | isTemporaryObject (ASTContext &Ctx, const CXXRecordDecl *TempTy) const
| Determine whether the result of this expression is a temporary object of the given class type. More...
bool | isImplicitCXXThis () const
| Whether this expression is an implicit reference to 'this' in C++. More...
const Expr * | IgnoreImpCasts () const LLVM_READONLY
const Expr * | IgnoreParens () const LLVM_READONLY
const Expr * | IgnoreParenCasts () const LLVM_READONLY
const Expr * | IgnoreCasts () const LLVM_READONLY
| Strip off casts, but keep parentheses. More...
const Expr * | IgnoreParenNoopCasts (ASTContext &Ctx) const LLVM_READONLY
const CXXRecordDecl * | getBestDynamicClassType () const
| For an expression of class type or pointer to class type, return the most derived class decl the expression is known to refer to. More...
const Expr * | getBestDynamicClassTypeExpr () const
| Get the inner expression that determines the best dynamic class. More...
const Expr * | skipRValueSubobjectAdjustments (SmallVectorImpl< const Expr *> &CommaLHS, SmallVectorImpl< SubobjectAdjustment > &Adjustments) const
| Walk outwards from an expression we want to bind a reference to and find the expression whose lifetime needs to be extended. More...
const Expr * | skipRValueSubobjectAdjustments () const
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 (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 (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 | viewAST () const
| viewAST - Visualize an AST rooted at this Stmt* using GraphViz. More...
Stmt * | IgnoreImplicit ()
| Skip past any implicit AST nodes which might surround this statement, such as ExprWithCleanups or ImplicitCastExpr nodes. More...
const Stmt * | IgnoreImplicit () const
Stmt * | IgnoreContainers (bool IgnoreCaptured=false)
| Skip no-op (attributed, compound) container stmts and skip captured stmt at the top, if IgnoreCaptured is true. More...
const Stmt * | IgnoreContainers (bool IgnoreCaptured=false) const
const Stmt * | stripLabelLikeStatements () const
| Strip off all label-like statements. More...
Stmt * | stripLabelLikeStatements ()
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 CallExpr * | Create (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 CallExpr * | CreateTemporary (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 CallExpr * | CreateEmpty (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 | 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...
Stmt * | getPreArg (unsigned I)
const Stmt * | getPreArg (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 = 8 }
enum | { NumExprBits = NumStmtBits + 9 }
enum | APFloatSemantics { IEEEhalf, IEEEsingle, IEEEdouble, x87DoubleExtended, IEEEquad, PPCDoubleDouble }
enum | { NumCallExprBits = 32 }
enum | { NumOverloadExprBits = NumExprBits + 1 }
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
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
PseudoObjectExprBitfields PseudoObjectExprBits
CXXOperatorCallExprBitfields CXXOperatorCallExprBits
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 2396 of file Expr.h.

## Member Typedef Documentation

## ◆ arg_iterator

typedef ExprIterator clang::CallExpr::arg_iterator

Definition at line 2580 of file Expr.h.

## ◆ arg_range

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

Definition at line 2582 of file Expr.h.

## ◆ const_arg_iterator

typedef ConstExprIterator clang::CallExpr::const_arg_iterator

Definition at line 2581 of file Expr.h.

## ◆ const_arg_range

typedef llvm::iterator_range<const_arg_iterator> clang::CallExpr::const_arg_range

Definition at line 2583 of file Expr.h.

## Member Enumeration Documentation

## ◆ ADLCallKind

enum clang::CallExpr::ADLCallKind : bool
| strong

Enumerator
NotADL |
UsesADL |

Definition at line 2443 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 1237 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 1271 of file Expr.cpp.

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

## Member Function Documentation

## ◆ arg_begin() [1/2]

arg_iterator clang::CallExpr::arg_begin | ( |  | ) |
| inline

Definition at line 2590 of file Expr.h.

Referenced by clang::CXXConstructExpr::arg_end(), clang::CXXUnresolvedConstructExpr::arg_end(), clang::CXXConstructExpr::arguments(), clang::CXXUnresolvedConstructExpr::arguments(), clang::CXXUnresolvedConstructExpr::children(), clang::CXXUnresolvedConstructExpr::getArg(), getStaticBooleanValue(), isPointerToConst(), resolveBuiltinNewDeleteOverload(), and clang::CXXUnresolvedConstructExpr::setArg().

## ◆ arg_begin() [2/2]

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

Definition at line 2595 of file Expr.h.

## ◆ arg_end() [1/2]

arg_iterator clang::CallExpr::arg_end | ( |  | ) |
| inline

Definition at line 2593 of file Expr.h.

Referenced by clang::CXXConstructExpr::arguments(), clang::CXXUnresolvedConstructExpr::arguments(), checkVAStartIsInVariadicFunction(), getStaticBooleanValue(), isPointerToConst(), and resolveBuiltinNewDeleteOverload().

## ◆ arg_end() [2/2]

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

Definition at line 2598 of file Expr.h.

## ◆ arguments() [1/2]

arg_range clang::CallExpr::arguments | ( |  | ) |
| inline

Definition at line 2585 of file Expr.h.

Referenced by commonEmitCXXMemberOrOperatorCall(), clang::CodeGen::CodeGenFunction::EmitBuiltinNewDeleteCall(), clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitCXXMemberPointerCallExpr(), clang::CodeGen::CodeGenFunction::EmitNVPTXDevicePrintfCallExpr(), identifyCall(), isParenthesizedADLCallee(), clang::ASTNodeImporter::VisitCallExpr(), and clang::ASTNodeImporter::VisitCXXMemberCallExpr().

## ◆ arguments() [2/2]

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

Definition at line 2586 of file Expr.h.

## ◆ children() [1/2]

child_range clang::CallExpr::children | ( |  | ) |
| inline

Definition at line 2657 of file Expr.h.

Referenced by clang::LexicallyOrderedRecursiveASTVisitor< Derived >::getStmtChildren().

## ◆ children() [2/2]

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

Definition at line 2662 of file Expr.h.

## ◆ classof()

static bool clang::CallExpr::classof | ( | const Stmt * | T | ) |
| inline static

Definition at line 2651 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 1283 of file Expr.cpp.

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

Referenced by clang::Sema::ActOnCallExpr(), 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

Create an empty call expression, for deserialization.

Definition at line 1305 of file Expr.cpp.

References clang::ASTContext::Allocate(), CallExpr(), clang::Expr::containsUnexpandedParameterPack(), clang::Stmt::ExprBits, clang::if(), clang::Expr::isInstantiationDependent(), clang::Expr::isTypeDependent(), clang::Expr::isValueDependent(), and sizeOfTrailingObjects().

## ◆ 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)

- sizeof(Stmt *) bytes of storage, aligned to alignof(CallExpr):

llvm::AlignedCharArray<alignof(CallExpr),
sizeof(CallExpr) + sizeof(Stmt *)> Buffer;
CallExpr *TheCall = CallExpr::CreateTemporary(Buffer.buffer, etc);

Definition at line 1296 of file Expr.cpp.

References CallExpr(), and UsesADL.

## ◆ getADLCallKind()

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

Definition at line 2518 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 2553 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::EmitBuiltinExpr(), clang::CodeGen::CodeGenFunction::emitBuiltinOSLogFormat(), clang::CodeGen::CodeGenFunction::EmitCommonNeonBuiltinExpr(), EmitCommonNeonSISDBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCXXOperatorMemberCallExpr(), emitFPIntBuiltin(), clang::CodeGen::CodeGenFunction::EmitHexagonBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitISOVolatileLoad(), clang::CodeGen::CodeGenFunction::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(), clang::ento::retaincountchecker::RetainCountChecker::evalCall(), EvaluateBuiltinClassifyType(), findCapturingExpr(), GetAlignOfExpr(), getArgumentValueString(), getAsPointeeSymbol(), clang::UserDefinedLiteral::getBeginLoc(), getBeginLoc(), getBytesReturnedByAllocSizeCall(), GetCFNumberSize(), getEndLoc(), clang::CXXUnresolvedConstructExpr::getEndLoc(), getPrintfFormatArgumentNum(), getStrlenExprArg(), identifyCall(), isPointerToConst(), IsStdFunction(), clang::Expr::isUnusedResultAWarning(), isValidOrderingForOp(), MakeAtomicCmpXchgValue(), MakeBinaryAtomicValue(), 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 2557 of file Expr.h.

## ◆ getArgs() [1/2]

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

Retrieve the call arguments.

Definition at line 2543 of file Expr.h.

Referenced by clang::ObjCMessageExpr::children(), clang::analyze_os_log::computeOSLogBufferLayout(), clang::CXXConstructExpr::getArg(), clang::TypeTraitExpr::getArg(), clang::ObjCPropertyRefExpr::getReceiverType(), HandleConstructorCall(), and clang::CXXConstructExpr::setArg().

## ◆ getArgs() [2/2]

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

Definition at line 2547 of file Expr.h.

## ◆ getBeginLoc()

SourceLocation CallExpr::getBeginLoc | ( |  | ) | const

Definition at line 1428 of file Expr.cpp.

References getArg(), clang::Stmt::getBeginLoc(), getCallee(), getNumArgs(), and clang::SourceLocation::isInvalid().

Referenced by clang::Sema::ActOnDecltypeExpression(), CheckBuiltinTargetSupport(), CheckMemaccessSize(), CheckMoveOnConstruction(), checkOpenCLEnqueueVariadicArgs(), checkOpenCLPipeArg(), checkOpenCLPipePacketType(), clang::CodeGen::CodeGenFunction::checkTargetFeatures(), clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitCoroutineIntrinsic(), getStrlenExprArg(), clang::CodeGen::CGCallee::prepareConcreteCallee(), resolveBuiltinNewDeleteOverload(), SemaBuiltinCommitRWPipe(), SemaBuiltinCpuIs(), SemaBuiltinCpuSupports(), SemaBuiltinLaunder(), SemaBuiltinPipePackets(), SemaBuiltinReserveRWPipe(), SemaBuiltinRWPipe(), clang::Sema::SemaBuiltinShuffleVector(), SemaOpenCLBuiltinEnqueueKernel(), and SemaOpenCLBuiltinToAddr().

## ◆ 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 1368 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

Definition at line 2514 of file Expr.h.

Referenced by clang::Sema::canThrow(), CanThrow(), checkBuiltinArgument(), CheckMoveOnConstruction(), checkVAStartIsInVariadicFunction(), describeUninitializedArgumentInCall(), clang::CodeGen::CodeGenFunction::EmitBlockCallExpr(), clang::CodeGen::CodeGenFunction::EmitCallExpr(), clang::CodeGen::CodeGenFunction::EmitCXXMemberCallExpr(), clang::CodeGen::CodeGenFunction::EmitCXXMemberPointerCallExpr(), emitLibraryCall(), clang::CodeGen::CodeGenFunction::EmitSimpleCallExpr(), clang::CodeGen::CodeGenFunction::GenerateObjCAtomicSetterCopyHelperFunction(), getBeginLoc(), getBuiltinCallee(), clang::ento::CheckerContext::getCalleeDecl(), getCallReturnType(), clang::CXXMemberCallExpr::getExprLoc(), getIncrementedVar(), clang::CallEventManager::getSimpleCall(), HandleConstructorCall(), hasRecursiveCallInPath(), isParenthesizedADLCallee(), clang::Expr::isUnusedResultAWarning(), isValidOrderingForOp(), isVirtualCall(), PrintFloatingLiteral(), resolveBuiltinNewDeleteOverload(), clang::ASTNodeImporter::VisitCallExpr(), and clang::ASTNodeImporter::VisitCXXMemberCallExpr().

## ◆ getCallee() [2/2]

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

Definition at line 2515 of file Expr.h.

## ◆ getCalleeDecl() [1/2]

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

Definition at line 2526 of file Expr.h.

Referenced by clang::Sema::ActOnStartCXXMemberReference(), clang::Sema::canThrow(), checkFormatStringExpr(), findCapturingExpr(), getStaticBooleanValue(), getUnusedResultAttr(), hasRecursiveCallInPath(), isPointerToConst(), and clang::Expr::isUnusedResultAWarning().

## ◆ getCalleeDecl() [2/2]

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

Definition at line 2527 of file Expr.h.

## ◆ getCallReturnType()

QualType CallExpr::getCallReturnType | ( | const ASTContext & | Ctx | ) | const

getCallReturnType - Get the return type of the call expr.

This is not always the type of the expr itself, if the return type is a reference type.

Definition at line 1396 of file Expr.cpp.

References clang::Type::castAs(), clang::Expr::findBoundMemberType(), clang::Type::getAs(), getCallee(), clang::Type::getPointeeType(), clang::FunctionType::getReturnType(), clang::Expr::getType(), clang::Expr::IgnoreParens(), clang::Type::isSpecificPlaceholderType(), and clang::ASTContext::VoidTy.

Referenced by clang::Sema::ActOnDecltypeExpression(), CheckForReference(), clang::CodeGen::CodeGenFunction::EmitCallExprLValue(), clang::ento::retaincountchecker::RetainCountChecker::evalCall(), findPeephole(), getUnusedResultAttr(), clang::Expr::isUnusedResultAWarning(), and clang::CodeGen::CodeGenFunction::LookupNeonLLVMIntrinsic().

## ◆ getDirectCallee() [1/2]

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

If the callee is a FunctionDecl, return it. Otherwise return null.

Definition at line 2532 of file Expr.h.

Referenced by clang::Sema::ActOnDecltypeExpression(), checkBuiltinArgument(), CheckForReference(), checkOpenCLPipeArg(), checkOpenCLPipePacketType(), commonEmitCXXMemberOrOperatorCall(), DiagnoseForRangeReferenceVariableCopies(), DiagnoseShiftCompare(), clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitNVPTXDevicePrintfCallExpr(), getAsPointeeSymbol(), getCalleeName(), getStaticBooleanValue(), isVirtualCall(), SemaBuiltinCommitRWPipe(), SemaBuiltinPipePackets(), SemaBuiltinReserveRWPipe(), SemaBuiltinRWPipe(), clang::Sema::SemaBuiltinShuffleVector(), SemaOpenCLBuiltinEnqueueKernel(), SemaOpenCLBuiltinToAddr(), clang::TreeTransform< Derived >::TransformOMPExecutableDirective(), clang::consumed::ConsumedStmtVisitor::VisitCallExpr(), and clang::consumed::ConsumedStmtVisitor::VisitCXXOperatorCallExpr().

## ◆ getDirectCallee() [2/2]

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

Definition at line 2535 of file Expr.h.

## ◆ getEndLoc()

SourceLocation CallExpr::getEndLoc | ( |  | ) | const

Definition at line 1437 of file Expr.cpp.

References getArg(), getNumArgs(), getRParenLoc(), and clang::SourceLocation::isInvalid().

Referenced by checkBuiltinArgument(), checkVAStartIsInVariadicFunction(), isValidOrderingForOp(), and clang::Sema::SemaBuiltinShuffleVector().

## ◆ getNumArgs()

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

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

Definition at line 2540 of file Expr.h.

Referenced by clang::CXXConstructExpr::arg_end(), checkBuiltinArgument(), CheckImplicitArgumentConversions(), CheckImplicitConversion(), CheckMemaccessSize(), checkOpenCLEnqueueVariadicArgs(), checkVAStartIsInVariadicFunction(), clang::ObjCMessageExpr::children(), 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(), GetAlignOfExpr(), clang::CXXConstructExpr::getArg(), clang::TypeTraitExpr::getArg(), clang::TypeTraitExpr::getArgs(), getArgumentValueString(), getAsPointeeSymbol(), getBeginLoc(), getBytesReturnedByAllocSizeCall(), GetCFNumberSize(), getEndLoc(), getPrintfFormatArgumentNum(), getStrlenExprArg(), HandleConstructorCall(), identifyCall(), clang::CXXOperatorCallExpr::isInfixBinaryOp(), isParenthesizedADLCallee(), IsStdFunction(), clang::Expr::isUnusedResultAWarning(), isValidOrderingForOp(), 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 2611 of file Expr.h.

## ◆ getNumPreArgs()

unsigned clang::CallExpr::getNumPreArgs | ( |  | ) | const
| inline protected

Definition at line 2477 of file Expr.h.

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

Referenced by CallExpr().

## ◆ getPreArg() [1/2]

Stmt* clang::CallExpr::getPreArg | ( | unsigned | I | ) |
| inline protected

Definition at line 2464 of file Expr.h.

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

## ◆ getPreArg() [2/2]

const Stmt* clang::CallExpr::getPreArg | ( | unsigned | I | ) | const
| inline protected

Definition at line 2468 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 2604 of file Expr.h.

## ◆ getRParenLoc()

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

Definition at line 2635 of file Expr.h.

Referenced by CheckMemaccessSize(), CheckMoveOnConstruction(), clang::UserDefinedLiteral::getBeginLoc(), clang::CXXScalarValueInitExpr::getBeginLoc(), clang::UserDefinedLiteral::getEndLoc(), clang::CXXScalarValueInitExpr::getEndLoc(), getEndLoc(), clang::CXXOperatorCallExpr::getOperatorLoc(), getStrlenExprArg(), clang::ASTNodeImporter::VisitCallExpr(), and clang::ASTNodeImporter::VisitCXXMemberCallExpr().

## ◆ 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 1415 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 2631 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 3067 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

Definition at line 2645 of file Expr.h.

References clang::NamedDecl::getIdentifier(), clang::Decl::isInStdNamespace(), and clang::IdentifierInfo::isStr().

Referenced by CheckMoveOnConstruction(), clang::Sema::DiagnoseSelfMove(), isPointerToConst(), and clang::consumed::ConsumedStmtVisitor::VisitCallExpr().

## ◆ 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 1390 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 2521 of file Expr.h.

## ◆ setArg()

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

setArg - Set the specified argument.

Definition at line 2563 of file Expr.h.

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

## ◆ setCallee()

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

Definition at line 2516 of file Expr.h.

Referenced by CallExpr().

## ◆ setPreArg()

void clang::CallExpr::setPreArg | ( | unsigned | I,
|  | Stmt * | PreArg
| ) |  |
| inline protected

Definition at line 2472 of file Expr.h.

Referenced by CallExpr(), and clang::CUDAKernelCallExpr::setConfig().

## ◆ setRParenLoc()

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

Definition at line 2636 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 2574 of file Expr.h.

## ◆ sizeOfTrailingObjects()

static unsigned clang::CallExpr::sizeOfTrailingObjects | ( | unsigned | NumPreArgs,
|  | unsigned | NumArgs
| ) |  |
| inline static protected

Return the size in bytes needed for the trailing objects.

Used by the derived classes to allocate the right amount of storage.

Definition at line 2460 of file Expr.h.

Referenced by clang::CXXOperatorCallExpr::Create(), clang::CXXMemberCallExpr::Create(), clang::CUDAKernelCallExpr::Create(), clang::UserDefinedLiteral::Create(), Create(), clang::CXXOperatorCallExpr::CreateEmpty(), clang::CXXMemberCallExpr::CreateEmpty(), clang::CUDAKernelCallExpr::CreateEmpty(), clang::UserDefinedLiteral::CreateEmpty(), and CreateEmpty().

## ◆ usesADL()

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

Definition at line 2524 of file Expr.h.

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

## Member Data Documentation

## ◆ NotADL

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

Definition at line 2444 of file Expr.h.

## ◆ UsesADL

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

Definition at line 2445 of file Expr.h.

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

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

- include/clang/AST/Expr.h
- lib/AST/Expr.cpp