clang::CallExpr Class Reference

#include <Expr.h>

Inheritance diagram for clang::CallExpr:

Collaboration diagram for clang::CallExpr:

List of all members.

Public Types
typedef ExprIterator	arg_iterator
typedef ConstExprIterator	const_arg_iterator
typedef llvm::iterator_range < arg_iterator >	arg_range
typedef llvm::iterator_range < const_arg_iterator >	arg_const_range
Public Member Functions
	CallExpr (const ASTContext &C, Expr *fn, ArrayRef< Expr * > args, QualType t, ExprValueKind VK, SourceLocation rparenloc)
	CallExpr (const ASTContext &C, StmtClass SC, EmptyShell Empty)
	Build an empty call expression.
const Expr *	getCallee () const
Expr *	getCallee ()
void	setCallee (Expr *F)
Decl *	getCalleeDecl ()
const Decl *	getCalleeDecl () const
FunctionDecl *	getDirectCallee ()
	If the callee is a FunctionDecl, return it. Otherwise return 0.
const FunctionDecl *	getDirectCallee () const
unsigned	getNumArgs () const
Expr **	getArgs ()
	Retrieve the call arguments.
const Expr *const *	getArgs () const
Expr *	getArg (unsigned Arg)
	getArg - Return the specified argument.
const Expr *	getArg (unsigned Arg) const
void	setArg (unsigned Arg, Expr *ArgExpr)
	setArg - Set the specified argument.
void	setNumArgs (const ASTContext &C, unsigned NumArgs)
arg_range	arguments ()
arg_const_range	arguments () const
arg_iterator	arg_begin ()
arg_iterator	arg_end ()
const_arg_iterator	arg_begin () const
const_arg_iterator	arg_end () const
ArrayRef< Stmt * >	getRawSubExprs ()
unsigned	getNumCommas () const
unsigned	getBuiltinCallee () const
	getBuiltinCallee - If this is a call to a builtin, return the builtin ID. If not, return 0.
bool	isUnevaluatedBuiltinCall (ASTContext &Ctx) const
	Returns true if this is a call to a builtin which does not evaluate side-effects within its arguments.
QualType	getCallReturnType () const
SourceLocation	getRParenLoc () const
void	setRParenLoc (SourceLocation L)
SourceLocation	getLocStart () const LLVM_READONLY
SourceLocation	getLocEnd () const LLVM_READONLY
child_range	children ()
Static Public Member Functions
static bool	classof (const Stmt *T)
Protected Member Functions
	CallExpr (const ASTContext &C, StmtClass SC, Expr *fn, unsigned NumPreArgs, ArrayRef< Expr * > args, QualType t, ExprValueKind VK, SourceLocation rparenloc)
	CallExpr (const ASTContext &C, StmtClass SC, unsigned NumPreArgs, EmptyShell Empty)
Stmt *	getPreArg (unsigned i)
const Stmt *	getPreArg (unsigned i) const
void	setPreArg (unsigned i, Stmt *PreArg)
unsigned	getNumPreArgs () const

---

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 2154 of file Expr.h.

---

Member Typedef Documentation

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

Definition at line 2241 of file Expr.h.

typedef ExprIterator clang::CallExpr::arg_iterator

Definition at line 2238 of file Expr.h.

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

Definition at line 2240 of file Expr.h.

typedef ConstExprIterator clang::CallExpr::const_arg_iterator

Definition at line 2239 of file Expr.h.

---

Constructor & Destructor Documentation

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

Definition at line 1114 of file Expr.cpp.

References AttributeLangSupport::C, clang::Stmt::CallExprBits, clang::Expr::containsUnexpandedParameterPack(), clang::Stmt::ExprBits, clang::Expr::isInstantiationDependent(), clang::Expr::isTypeDependent(), and clang::Expr::isValueDependent().

CallExpr::CallExpr	(	const ASTContext &	C,
		StmtClass	SC,
		unsigned	NumPreArgs,
		EmptyShell	Empty
	)		[protected]

Definition at line 1178 of file Expr.cpp.

References AttributeLangSupport::C, and clang::Stmt::CallExprBits.

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

Definition at line 1143 of file Expr.cpp.

References AttributeLangSupport::C, clang::Stmt::CallExprBits, clang::Expr::containsUnexpandedParameterPack(), clang::Stmt::ExprBits, clang::Expr::isInstantiationDependent(), clang::Expr::isTypeDependent(), and clang::Expr::isValueDependent().

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

Build an empty call expression.

Definition at line 1171 of file Expr.cpp.

References AttributeLangSupport::C, and clang::Stmt::CallExprBits.

---

Member Function Documentation

arg_iterator clang::CallExpr::arg_begin

(

)

[inline]

Definition at line 2248 of file Expr.h.

References getNumPreArgs().

Referenced by arguments(), commonEmitCXXMemberOrOperatorCall(), clang::CodeGen::CodeGenFunction::EmitBlockCallExpr(), clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitCXXMemberCallExpr(), clang::CodeGen::CodeGenFunction::EmitCXXMemberPointerCallExpr(), and clang::ento::StackHintGeneratorForSymbol::getMessage().

const_arg_iterator clang::CallExpr::arg_begin

(

)

const [inline]

Definition at line 2252 of file Expr.h.

References getNumPreArgs().

arg_iterator clang::CallExpr::arg_end

(

)

[inline]

Definition at line 2249 of file Expr.h.

References getNumArgs(), and getNumPreArgs().

Referenced by arguments(), commonEmitCXXMemberOrOperatorCall(), clang::CodeGen::CodeGenFunction::EmitBlockCallExpr(), clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitCXXMemberCallExpr(), clang::CodeGen::CodeGenFunction::EmitCXXMemberPointerCallExpr(), and clang::ento::StackHintGeneratorForSymbol::getMessage().

const_arg_iterator clang::CallExpr::arg_end

(

)

const [inline]

Definition at line 2255 of file Expr.h.

References getNumArgs(), and getNumPreArgs().

arg_range clang::CallExpr::arguments

(

)

[inline]

Definition at line 2243 of file Expr.h.

References arg_begin(), and arg_end().

arg_const_range clang::CallExpr::arguments

(

)

const [inline]

Definition at line 2244 of file Expr.h.

References arg_begin(), and arg_end().

child_range clang::CallExpr::children

(

)

[inline]

Reimplemented from clang::Stmt.

Definition at line 2297 of file Expr.h.

References getNumPreArgs().

static bool clang::CallExpr::classof

(

const Stmt *

T

)

[inline, static]

Reimplemented from clang::Expr.

Reimplemented in clang::UserDefinedLiteral, clang::CUDAKernelCallExpr, clang::CXXMemberCallExpr, and clang::CXXOperatorCallExpr.

Definition at line 2291 of file Expr.h.

Expr* clang::CallExpr::getArg

(

unsigned

Arg

)

[inline]

getArg - Return the specified argument.

Definition at line 2218 of file Expr.h.

References getNumPreArgs().

Referenced by checkArgCount(), checkBuiltinArgument(), checkFormatStringExpr(), DiagnoseShiftCompare(), clang::CodeGen::CodeGenFunction::EmitAArch64BuiltinExpr(), EmitAArch64TblBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitARMBuiltinExpr(), EmitBinaryAtomic(), EmitBinaryAtomicPost(), clang::CodeGen::CodeGenFunction::EmitBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCommonNeonBuiltinExpr(), EmitCommonNeonSISDBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCXXOperatorMemberCallee(), clang::CodeGen::CodeGenFunction::EmitCXXOperatorMemberCallExpr(), emitFPIntBuiltin(), clang::CodeGen::CodeGenFunction::EmitPPCBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitR600BuiltinExpr(), emitTernaryFPBuiltin(), emitUnaryFPBuiltin(), clang::CodeGen::CodeGenFunction::EmitX86BuiltinExpr(), EvaluateBuiltinClassifyType(), findCapturingExpr(), clang::ento::SimpleFunctionCall::getArgExpr(), getArgumentValueString(), clang::UserDefinedLiteral::getCookedLiteral(), getLocEnd(), clang::UserDefinedLiteral::getLocStart(), getLocStart(), clang::consumed::ConsumedStmtVisitor::handleCall(), clang::Expr::isUnusedResultAWarning(), SemaBuiltinAddressof(), SemaBuiltinAnnotation(), SemaBuiltinMemChkCall(), clang::Sema::SemaBuiltinShuffleVector(), clang::ento::ExprEngine::Visit(), clang::consumed::ConsumedStmtVisitor::VisitCallExpr(), clang::threadSafety::BuildLockset::VisitCallExpr(), and clang::consumed::ConsumedStmtVisitor::VisitCXXOperatorCallExpr().

const Expr* clang::CallExpr::getArg

(

unsigned

Arg

)

const [inline]

Definition at line 2222 of file Expr.h.

References getNumPreArgs().

Expr** clang::CallExpr::getArgs

(

)

[inline]

Retrieve the call arguments.

Definition at line 2210 of file Expr.h.

References getNumPreArgs().

Referenced by getArgs().

const Expr* const* clang::CallExpr::getArgs

(

)

const [inline]

Definition at line 2213 of file Expr.h.

References getArgs().

unsigned CallExpr::getBuiltinCallee

(

)

const

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

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

Definition at line 1245 of file Expr.cpp.

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

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

const Expr* clang::CallExpr::getCallee

(

)

const [inline]

Definition at line 2190 of file Expr.h.

Referenced by clang::Sema::canThrow(), checkForFunctionCall(), clang::CodeGen::CodeGenFunction::EmitBlockCallExpr(), clang::CodeGen::CodeGenFunction::EmitBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCallExpr(), clang::CodeGen::CGCUDARuntime::EmitCUDAKernelCallExpr(), clang::CodeGen::CodeGenFunction::EmitCXXMemberCallExpr(), clang::CodeGen::CodeGenFunction::EmitCXXMemberPointerCallExpr(), emitLibraryCall(), clang::CodeGen::CodeGenFunction::GenerateObjCAtomicSetterCopyHelperFunction(), getBuiltinCallee(), clang::ento::CheckerContext::getCalleeDecl(), getCalleeDecl(), getCallReturnType(), clang::CXXInstanceCall::getDecl(), clang::CXXMemberCallExpr::getImplicitObjectArgument(), getLocStart(), clang::CXXMemberCallExpr::getMethodDecl(), clang::CallEventManager::getSimpleCall(), isParenthesizedADLCallee(), clang::Expr::isUnusedResultAWarning(), and clang::Sema::SemaBuiltinShuffleVector().

Expr* clang::CallExpr::getCallee

(

)

[inline]

Definition at line 2191 of file Expr.h.

Decl * CallExpr::getCalleeDecl

(

)

Definition at line 1186 of file Expr.cpp.

References getCallee(), clang::Expr::IgnoreParenCasts(), clang::Expr::IgnoreParenImpCasts(), and clang::UO_Deref.

Referenced by clang::Sema::ActOnStartCXXMemberReference(), clang::Sema::canThrow(), checkForFunctionCall(), checkFormatStringExpr(), clang::CodeGen::CodeGenFunction::EmitCallExpr(), findCapturingExpr(), getCalleeDecl(), getDirectCallee(), clang::threadSafety::ThreadSafetyAnalyzer::getEdgeLockset(), clang::UserDefinedLiteral::getLiteralOperatorKind(), clang::UserDefinedLiteral::getUDSuffix(), clang::Expr::isUnusedResultAWarning(), clang::ento::ExprEngine::Visit(), and clang::threadSafety::BuildLockset::VisitCallExpr().

const Decl* clang::CallExpr::getCalleeDecl

(

)

const [inline]

Definition at line 2195 of file Expr.h.

References getCalleeDecl().

QualType CallExpr::getCallReturnType

(

)

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 1273 of file Expr.cpp.

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

Referenced by clang::Sema::ActOnDecltypeExpression(), CheckForReference(), clang::CodeGen::CodeGenFunction::EmitAArch64BuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCallExprLValue(), clang::Expr::isUnusedResultAWarning(), and clang::CodeGen::CodeGenFunction::LookupNeonLLVMIntrinsic().

FunctionDecl * CallExpr::getDirectCallee

(

)

If the callee is a FunctionDecl, return it. Otherwise return 0.

Definition at line 1210 of file Expr.cpp.

References getCalleeDecl().

Referenced by clang::Sema::ActOnDecltypeExpression(), checkBuiltinArgument(), CheckForReference(), commonEmitCXXMemberOrOperatorCall(), DiagnoseShiftCompare(), clang::CodeGen::CodeGenFunction::EmitAArch64BuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitARMBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitCallExpr(), clang::CodeGen::CodeGenFunction::EmitCXXMemberPointerCallExpr(), getCalleeName(), clang::ento::SimpleFunctionCall::getDecl(), clang::CXXInstanceCall::getDecl(), getDirectCallee(), clang::consumed::ConsumedStmtVisitor::VisitCallExpr(), clang::threadSafety::BuildLockset::VisitCallExpr(), and clang::consumed::ConsumedStmtVisitor::VisitCXXOperatorCallExpr().

const FunctionDecl* clang::CallExpr::getDirectCallee

(

)

const [inline]

Definition at line 2201 of file Expr.h.

References getDirectCallee().

SourceLocation CallExpr::getLocEnd

(

)

const

Reimplemented from clang::Stmt.

Reimplemented in clang::UserDefinedLiteral, and clang::CXXOperatorCallExpr.

Definition at line 1296 of file Expr.cpp.

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

Referenced by checkArgCount(), and clang::Sema::SemaBuiltinShuffleVector().

SourceLocation CallExpr::getLocStart

(

)

const

Reimplemented from clang::Stmt.

Reimplemented in clang::UserDefinedLiteral, and clang::CXXOperatorCallExpr.

Definition at line 1287 of file Expr.cpp.

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

Referenced by clang::Sema::ActOnDecltypeExpression(), clang::Sema::ConvertArgumentsForCall(), clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CodeGenFunction::EmitCallExpr(), SemaBuiltinAddressof(), SemaBuiltinMemChkCall(), and clang::Sema::SemaBuiltinShuffleVector().

unsigned clang::CallExpr::getNumArgs

(

)

const [inline]

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

Definition at line 2207 of file Expr.h.

Referenced by arg_end(), checkArgCount(), DecodeOperatorCall(), clang::CodeGen::CodeGenFunction::EmitAArch64BuiltinExpr(), EmitAArch64TblBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitARMBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCommonNeonBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitCXXMemberCallExpr(), clang::CodeGen::CodeGenFunction::EmitPPCBuiltinExpr(), clang::CodeGen::CodeGenFunction::EmitX86BuiltinExpr(), EvaluateBuiltinClassifyType(), findCapturingExpr(), getArgumentValueString(), clang::UserDefinedLiteral::getLiteralOperatorKind(), getLocEnd(), getLocStart(), clang::ento::SimpleFunctionCall::getNumArgs(), getPrintfFormatArgumentNum(), getRawSubExprs(), clang::consumed::ConsumedStmtVisitor::handleCall(), clang::Expr::isUnusedResultAWarning(), SemaBuiltinMemChkCall(), clang::Sema::SemaBuiltinShuffleVector(), setNumArgs(), clang::consumed::ConsumedStmtVisitor::VisitCallExpr(), and clang::threadSafety::BuildLockset::VisitCallExpr().

unsigned clang::CallExpr::getNumCommas

(

)

const [inline]

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

Definition at line 2270 of file Expr.h.

unsigned clang::CallExpr::getNumPreArgs

(

)

const [inline, protected]

Definition at line 2181 of file Expr.h.

References clang::Stmt::CallExprBits.

Referenced by arg_begin(), arg_end(), children(), getArg(), getArgs(), getPreArg(), getRawSubExprs(), setArg(), setNumArgs(), and setPreArg().

Stmt* clang::CallExpr::getPreArg

(

unsigned

i

)

[inline, protected]

Definition at line 2168 of file Expr.h.

References getNumPreArgs().

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

const Stmt* clang::CallExpr::getPreArg

(

unsigned

i

)

const [inline, protected]

Definition at line 2172 of file Expr.h.

References getNumPreArgs().

ArrayRef<Stmt*> clang::CallExpr::getRawSubExprs

(

)

[inline]

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

Definition at line 2263 of file Expr.h.

References getNumArgs(), and getNumPreArgs().

SourceLocation clang::CallExpr::getRParenLoc

(

)

const [inline]

Definition at line 2285 of file Expr.h.

Referenced by clang::UserDefinedLiteral::getLocEnd(), getLocEnd(), clang::UserDefinedLiteral::getLocStart(), clang::CXXOperatorCallExpr::getOperatorLoc(), and clang::Sema::SemaBuiltinShuffleVector().

bool CallExpr::isUnevaluatedBuiltinCall

(

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 1267 of file Expr.cpp.

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

Referenced by clang::EvaluatedExprVisitor< ImplClass >::VisitCallExpr().

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

setArg - Set the specified argument.

Definition at line 2228 of file Expr.h.

References getNumPreArgs().

Referenced by clang::Sema::BuildResolvedCallExpr(), checkBuiltinArgument(), clang::Sema::ConvertArgumentsForCall(), SemaBuiltinAddressof(), and clang::Sema::SemaBuiltinShuffleVector().

void clang::CallExpr::setCallee

(

Expr *

F

)

[inline]

Definition at line 2192 of file Expr.h.

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

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

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

Definition at line 1217 of file Expr.cpp.

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

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

void clang::CallExpr::setPreArg	(	unsigned	i,
		Stmt *	PreArg
	)		[inline, protected]

Definition at line 2176 of file Expr.h.

References getNumPreArgs().

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

void clang::CallExpr::setRParenLoc

(

SourceLocation

L

)

[inline]

Definition at line 2286 of file Expr.h.

---

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

• Expr.h
• Expr.cpp