clang
3.7.0
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Represents a new-expression for memory allocation and constructor calls, e.g: "new CXXNewExpr(foo)". More...
#include <ExprCXX.h>
Public Member Functions | |
CXXNewExpr (const ASTContext &C, bool globalNew, FunctionDecl *operatorNew, FunctionDecl *operatorDelete, bool usualArrayDeleteWantsSize, ArrayRef< Expr * > placementArgs, SourceRange typeIdParens, Expr *arraySize, InitializationStyle initializationStyle, Expr *initializer, QualType ty, TypeSourceInfo *AllocatedTypeInfo, SourceRange Range, SourceRange directInitRange) | |
CXXNewExpr (EmptyShell Shell) | |
void | AllocateArgsArray (const ASTContext &C, bool isArray, unsigned numPlaceArgs, bool hasInitializer) |
QualType | getAllocatedType () const |
TypeSourceInfo * | getAllocatedTypeSourceInfo () const |
bool | shouldNullCheckAllocation (const ASTContext &Ctx) const |
True if the allocation result needs to be null-checked. More... | |
FunctionDecl * | getOperatorNew () const |
void | setOperatorNew (FunctionDecl *D) |
FunctionDecl * | getOperatorDelete () const |
void | setOperatorDelete (FunctionDecl *D) |
bool | isArray () const |
Expr * | getArraySize () |
const Expr * | getArraySize () const |
unsigned | getNumPlacementArgs () const |
Expr ** | getPlacementArgs () |
Expr * | getPlacementArg (unsigned i) |
const Expr * | getPlacementArg (unsigned i) const |
bool | isParenTypeId () const |
SourceRange | getTypeIdParens () const |
bool | isGlobalNew () const |
bool | hasInitializer () const |
Whether this new-expression has any initializer at all. More... | |
InitializationStyle | getInitializationStyle () const |
The kind of initializer this new-expression has. More... | |
Expr * | getInitializer () |
The initializer of this new-expression. More... | |
const Expr * | getInitializer () const |
const CXXConstructExpr * | getConstructExpr () const |
Returns the CXXConstructExpr from this new-expression, or null. More... | |
bool | doesUsualArrayDeleteWantSize () const |
arg_iterator | placement_arg_begin () |
arg_iterator | placement_arg_end () |
const_arg_iterator | placement_arg_begin () const |
const_arg_iterator | placement_arg_end () const |
raw_arg_iterator | raw_arg_begin () |
raw_arg_iterator | raw_arg_end () |
const_arg_iterator | raw_arg_begin () const |
const_arg_iterator | raw_arg_end () const |
SourceLocation | getStartLoc () const |
SourceLocation | getEndLoc () const |
SourceRange | getDirectInitRange () const |
SourceRange | getSourceRange () const LLVM_READONLY |
SourceLocation | getLocStart () const LLVM_READONLY |
SourceLocation | getLocEnd () const LLVM_READONLY |
child_range | children () |
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QualType | getType () const |
void | setType (QualType t) |
bool | isValueDependent () const |
void | setValueDependent (bool VD) |
Set whether this expression is value-dependent or not. More... | |
bool | isTypeDependent () const |
void | setTypeDependent (bool TD) |
Set whether this expression is type-dependent or not. More... | |
bool | isInstantiationDependent () const |
Whether this expression is instantiation-dependent, meaning that it depends in some way on a template parameter, even if neither its type nor (constant) value can change due to the template instantiation. More... | |
void | setInstantiationDependent (bool ID) |
Set whether this expression is instantiation-dependent or not. More... | |
bool | containsUnexpandedParameterPack () const |
Whether this expression contains an unexpanded parameter pack (for C++11 variadic templates). More... | |
void | setContainsUnexpandedParameterPack (bool PP=true) |
Set the bit that describes whether this expression contains an unexpanded parameter pack. More... | |
SourceLocation | getExprLoc () const LLVM_READONLY |
bool | isUnusedResultAWarning (const Expr *&WarnExpr, SourceLocation &Loc, SourceRange &R1, SourceRange &R2, ASTContext &Ctx) const |
bool | isLValue () const |
bool | isRValue () const |
bool | isXValue () const |
bool | isGLValue () const |
LValueClassification | ClassifyLValue (ASTContext &Ctx) const |
Reasons why an expression might not be an l-value. More... | |
isModifiableLvalueResult | isModifiableLvalue (ASTContext &Ctx, SourceLocation *Loc=nullptr) const |
Classification | Classify (ASTContext &Ctx) const |
Classify - Classify this expression according to the C++11 expression taxonomy. More... | |
Classification | ClassifyModifiable (ASTContext &Ctx, SourceLocation &Loc) const |
ClassifyModifiable - Classify this expression according to the C++11 expression taxonomy, and see if it is valid on the left side of an assignment. More... | |
ExprValueKind | getValueKind () const |
getValueKind - The value kind that this expression produces. More... | |
ExprObjectKind | getObjectKind () const |
bool | isOrdinaryOrBitFieldObject () const |
void | setValueKind (ExprValueKind Cat) |
setValueKind - Set the value kind produced by this expression. More... | |
void | setObjectKind (ExprObjectKind Cat) |
setObjectKind - Set the object kind produced by this expression. More... | |
bool | refersToBitField () const |
Returns true if this expression is a gl-value that potentially refers to a bit-field. More... | |
FieldDecl * | getSourceBitField () |
If this expression refers to a bit-field, retrieve the declaration of that bit-field. More... | |
const FieldDecl * | getSourceBitField () 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 | hasPlaceholderType () const |
Returns whether this expression has a placeholder type. More... | |
bool | hasPlaceholderType (BuiltinType::Kind K) const |
Returns whether this expression has a specific placeholder type. More... | |
bool | isKnownToHaveBooleanValue () const |
bool | isIntegerConstantExpr (llvm::APSInt &Result, const ASTContext &Ctx, SourceLocation *Loc=nullptr, bool isEvaluated=true) const |
bool | isIntegerConstantExpr (const ASTContext &Ctx, SourceLocation *Loc=nullptr) const |
bool | isCXX98IntegralConstantExpr (const ASTContext &Ctx) const |
bool | isCXX11ConstantExpr (const ASTContext &Ctx, APValue *Result=nullptr, SourceLocation *Loc=nullptr) const |
bool | isConstantInitializer (ASTContext &Ctx, bool ForRef, const Expr **Culprit=nullptr) const |
bool | EvaluateAsRValue (EvalResult &Result, const ASTContext &Ctx) const |
bool | EvaluateAsBooleanCondition (bool &Result, const ASTContext &Ctx) const |
bool | EvaluateAsInt (llvm::APSInt &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const |
bool | isEvaluatable (const ASTContext &Ctx) const |
bool | HasSideEffects (const ASTContext &Ctx, bool IncludePossibleEffects=true) const |
bool | hasNonTrivialCall (const ASTContext &Ctx) const |
Determine whether this expression involves a call to any function that is not trivial. More... | |
llvm::APSInt | EvaluateKnownConstInt (const ASTContext &Ctx, SmallVectorImpl< PartialDiagnosticAt > *Diag=nullptr) const |
void | EvaluateForOverflow (const ASTContext &Ctx) const |
bool | EvaluateAsLValue (EvalResult &Result, const ASTContext &Ctx) const |
bool | EvaluateAsInitializer (APValue &Result, const ASTContext &Ctx, const VarDecl *VD, SmallVectorImpl< PartialDiagnosticAt > &Notes) const |
bool | EvaluateWithSubstitution (APValue &Value, ASTContext &Ctx, const FunctionDecl *Callee, ArrayRef< const Expr * > Args) const |
NullPointerConstantKind | isNullPointerConstant (ASTContext &Ctx, NullPointerConstantValueDependence NPC) const |
bool | isOBJCGCCandidate (ASTContext &Ctx) const |
bool | isBoundMemberFunction (ASTContext &Ctx) const |
Returns true if this expression is a bound member function. More... | |
Expr * | IgnoreImpCasts () LLVM_READONLY |
Expr * | IgnoreImplicit () LLVM_READONLY |
const Expr * | IgnoreImplicit () const LLVM_READONLY |
Expr * | IgnoreParens () LLVM_READONLY |
Expr * | IgnoreParenCasts () LLVM_READONLY |
Expr * | IgnoreCasts () LLVM_READONLY |
Ignore casts. Strip off any CastExprs, returning their operand. More... | |
Expr * | IgnoreParenImpCasts () LLVM_READONLY |
Expr * | IgnoreConversionOperator () LLVM_READONLY |
const Expr * | IgnoreConversionOperator () const LLVM_READONLY |
const Expr * | IgnoreParenImpCasts () const LLVM_READONLY |
Expr * | IgnoreParenLValueCasts () LLVM_READONLY |
const Expr * | IgnoreParenLValueCasts () const LLVM_READONLY |
Expr * | IgnoreParenNoopCasts (ASTContext &Ctx) LLVM_READONLY |
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 * | skipRValueSubobjectAdjustments (SmallVectorImpl< const Expr * > &CommaLHS, SmallVectorImpl< SubobjectAdjustment > &Adjustments) const |
Static Public Member Functions | |
static bool | classof (const Stmt *T) |
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static ExprValueKind | getValueKindForType (QualType T) |
static bool | isPotentialConstantExpr (const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags) |
static bool | isPotentialConstantExprUnevaluated (Expr *E, const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags) |
static QualType | findBoundMemberType (const Expr *expr) |
Given an expression of bound-member type, find the type of the member. Returns null if this is an overloaded bound member expression. More... | |
static bool | hasAnyTypeDependentArguments (ArrayRef< Expr * > Exprs) |
static bool | classof (const Stmt *T) |
Friends | |
class | ASTStmtReader |
class | ASTStmtWriter |
Additional Inherited Members | |
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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... | |
Represents a new-expression for memory allocation and constructor calls, e.g: "new CXXNewExpr(foo)".
typedef Stmt** clang::CXXNewExpr::raw_arg_iterator |
CXXNewExpr::CXXNewExpr | ( | const ASTContext & | C, |
bool | globalNew, | ||
FunctionDecl * | operatorNew, | ||
FunctionDecl * | operatorDelete, | ||
bool | usualArrayDeleteWantsSize, | ||
ArrayRef< Expr * > | placementArgs, | ||
SourceRange | typeIdParens, | ||
Expr * | arraySize, | ||
InitializationStyle | initializationStyle, | ||
Expr * | initializer, | ||
QualType | ty, | ||
TypeSourceInfo * | AllocatedTypeInfo, | ||
SourceRange | Range, | ||
SourceRange | directInitRange | ||
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Definition at line 136 of file ExprCXX.cpp.
References AllocateArgsArray(), CallInit, clang::Expr::containsUnexpandedParameterPack(), clang::SourceRange::getEnd(), getInitializationStyle(), getInitializer(), getSourceRange(), clang::if(), clang::Expr::isInstantiationDependent(), clang::SourceRange::isValid(), ListInit, NoInit, and clang::SourceRange::setEnd().
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void CXXNewExpr::AllocateArgsArray | ( | const ASTContext & | C, |
bool | isArray, | ||
unsigned | numPlaceArgs, | ||
bool | hasInitializer | ||
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Definition at line 200 of file ExprCXX.cpp.
References AttributeLangSupport::C, and isArray().
Referenced by CXXNewExpr().
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Definition at line 1812 of file ExprCXX.h.
References raw_arg_begin(), and raw_arg_end().
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Answers whether the usual array deallocation function for the allocated type expects the size of the allocation as a parameter.
Definition at line 1766 of file ExprCXX.h.
Referenced by clang::CodeGen::CGCXXABI::requiresArrayCookie().
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Definition at line 1682 of file ExprCXX.h.
References clang::Type::getAs(), and clang::Expr::getType().
Referenced by EmitCXXNewAllocSize(), clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), clang::CodeGen::CodeGenFunction::EmitNewArrayInitializer(), EmitNewInitializer(), clang::CodeGen::CGCXXABI::GetArrayCookieSize(), clang::CodeGen::CGCXXABI::requiresArrayCookie(), and treatUnusedNewEscaped().
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Definition at line 1714 of file ExprCXX.h.
Referenced by EmitCXXNewAllocSize().
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Returns the CXXConstructExpr from this new-expression, or null.
Definition at line 1759 of file ExprCXX.h.
References getInitializer().
Referenced by treatUnusedNewEscaped().
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Definition at line 1797 of file ExprCXX.h.
References clang::SourceRange::getEnd().
Referenced by getLocEnd().
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The kind of initializer this new-expression has.
Definition at line 1744 of file ExprCXX.h.
References NoInit.
Referenced by CXXNewExpr().
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The initializer of this new-expression.
Definition at line 1751 of file ExprCXX.h.
References hasInitializer().
Referenced by CXXNewExpr(), clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), clang::CodeGen::CodeGenFunction::EmitNewArrayInitializer(), EmitNewInitializer(), getConstructExpr(), and clang::ento::ExprEngine::VisitCXXNewExpr().
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Definition at line 1754 of file ExprCXX.h.
References hasInitializer().
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Definition at line 1805 of file ExprCXX.h.
References getEndLoc().
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Definition at line 1804 of file ExprCXX.h.
References getStartLoc().
Referenced by clang::ento::ExprEngine::ProcessNewAllocator().
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Definition at line 1721 of file ExprCXX.h.
Referenced by EnterNewDeleteCleanup(), placement_arg_end(), and raw_arg_end().
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Definition at line 1710 of file ExprCXX.h.
Referenced by clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), and EnterNewDeleteCleanup().
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Definition at line 1708 of file ExprCXX.h.
Referenced by CalculateCookiePadding(), clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), clang::ento::ExprEngine::ProcessNewAllocator(), shouldNullCheckAllocation(), and clang::ento::ExprEngine::VisitCXXNewExpr().
Definition at line 1726 of file ExprCXX.h.
References getPlacementArgs().
Referenced by getPlacementArg(), and clang::ento::ExprEngine::VisitCXXNewExpr().
Definition at line 1730 of file ExprCXX.h.
References getPlacementArg().
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Definition at line 1722 of file ExprCXX.h.
References hasInitializer().
Referenced by getPlacementArg().
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Definition at line 1801 of file ExprCXX.h.
Referenced by CXXNewExpr().
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Definition at line 1796 of file ExprCXX.h.
References clang::SourceRange::getBegin().
Referenced by getLocStart(), and clang::ento::ExprEngine::VisitCXXNewAllocatorCall().
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Whether this new-expression has any initializer at all.
Definition at line 1741 of file ExprCXX.h.
Referenced by clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), clang::CodeGen::CodeGenFunction::EmitNewArrayInitializer(), getInitializer(), getPlacementArgs(), placement_arg_begin(), placement_arg_end(), and raw_arg_end().
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Definition at line 1713 of file ExprCXX.h.
Referenced by AllocateArgsArray(), CalculateCookiePadding(), EmitCXXNewAllocSize(), clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), EmitNewInitializer(), and clang::ento::ExprEngine::VisitCXXNewExpr().
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Definition at line 1735 of file ExprCXX.h.
References clang::SourceRange::isValid().
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Definition at line 1773 of file ExprCXX.h.
References hasInitializer().
Referenced by clang::CodeGen::CodeGenFunction::EmitCXXNewExpr().
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Definition at line 1779 of file ExprCXX.h.
References hasInitializer().
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Definition at line 1776 of file ExprCXX.h.
References getNumPlacementArgs(), and hasInitializer().
Referenced by clang::CodeGen::CodeGenFunction::EmitCXXNewExpr().
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Definition at line 1782 of file ExprCXX.h.
References getNumPlacementArgs(), and hasInitializer().
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Definition at line 1787 of file ExprCXX.h.
Referenced by children().
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Definition at line 1788 of file ExprCXX.h.
References getNumPlacementArgs(), and hasInitializer().
Referenced by children().
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Definition at line 1792 of file ExprCXX.h.
References getNumPlacementArgs(), and hasInitializer().
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bool CXXNewExpr::shouldNullCheckAllocation | ( | const ASTContext & | Ctx | ) | const |
True if the allocation result needs to be null-checked.
C++11 [expr.new]p13: If the allocation function returns null, initialization shall not be done, the deallocation function shall not be called, and the value of the new-expression shall be null.
C++ DR1748: If the allocation function is a reserved placement allocation function that returns null, the behavior is undefined.
An allocation function is not allowed to return null unless it has a non-throwing exception-specification. The '03 rule is identical except that the definition of a non-throwing exception specification is just "is it throw()?".
Definition at line 210 of file ExprCXX.cpp.
References clang::Type::castAs(), getOperatorNew(), clang::ValueDecl::getType(), and clang::FunctionDecl::isReservedGlobalPlacementOperator().
Referenced by clang::CodeGen::CodeGenFunction::EmitCXXNewExpr().
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