clang API Documentation

Public Member Functions | Public Attributes
clang::StandardConversionSequence Class Reference

#include <Overload.h>

Collaboration diagram for clang::StandardConversionSequence:
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List of all members.

Public Member Functions

void setFromType (QualType T)
void setToType (unsigned Idx, QualType T)
void setAllToTypes (QualType T)
QualType getFromType () const
QualType getToType (unsigned Idx) const
void setAsIdentityConversion ()
bool isIdentityConversion () const
ImplicitConversionRank getRank () const
NarrowingKind getNarrowingKind (ASTContext &Context, const Expr *Converted, APValue &ConstantValue, QualType &ConstantType) const
bool isPointerConversionToBool () const
bool isPointerConversionToVoidPointer (ASTContext &Context) const
void DebugPrint () const

Public Attributes

ImplicitConversionKind First: 8
ImplicitConversionKind Second: 8
ImplicitConversionKind Third: 8
 Third - The third conversion can be a qualification conversion.
unsigned DeprecatedStringLiteralToCharPtr: 1
 Whether this is the deprecated conversion of a string literal to a pointer to non-const character data (C++ 4.2p2).
unsigned QualificationIncludesObjCLifetime: 1
 Whether the qualification conversion involves a change in the Objective-C lifetime (for automatic reference counting).
unsigned IncompatibleObjC: 1
unsigned ReferenceBinding: 1
unsigned DirectBinding: 1
unsigned IsLvalueReference: 1
 Whether this is an lvalue reference binding (otherwise, it's an rvalue reference binding).
unsigned BindsToFunctionLvalue: 1
 Whether we're binding to a function lvalue.
unsigned BindsToRvalue: 1
 Whether we're binding to an rvalue.
unsigned BindsImplicitObjectArgumentWithoutRefQualifier: 1
 Whether this binds an implicit object argument to a non-static member function without a ref-qualifier.
unsigned ObjCLifetimeConversionBinding: 1
 Whether this binds a reference to an object with a different Objective-C lifetime qualifier.
void * FromTypePtr
void * ToTypePtrs [3]
CXXConstructorDeclCopyConstructor

Detailed Description

StandardConversionSequence - represents a standard conversion sequence (C++ 13.3.3.1.1). A standard conversion sequence contains between zero and three conversions. If a particular conversion is not needed, it will be set to the identity conversion (ICK_Identity). Note that the three conversions are specified as separate members (rather than in an array) so that we can keep the size of a standard conversion sequence to a single word.

Definition at line 140 of file Overload.h.


Member Function Documentation

void clang::StandardConversionSequence::DebugPrint ( ) const

DebugPrint - Print this standard conversion sequence to standard error. Useful for debugging overloading issues.

Definition at line 430 of file SemaOverload.cpp.

References clang::GetImplicitConversionName(), and clang::ICK_Identity.

QualType clang::StandardConversionSequence::getFromType ( ) const [inline]
NarrowingKind clang::StandardConversionSequence::getNarrowingKind ( ASTContext Ctx,
const Expr Converted,
APValue ConstantValue,
QualType ConstantType 
) const

Check if this standard conversion sequence represents a narrowing conversion, according to C++11 [dcl.init.list]p7.

Parameters:
CtxThe AST context.
ConvertedThe result of applying this standard conversion sequence.
ConstantValueIf this is an NK_Constant_Narrowing conversion, the value of the expression prior to the narrowing conversion.
ConstantTypeIf this is an NK_Constant_Narrowing conversion, the type of the expression prior to the narrowing conversion.

Definition at line 295 of file SemaOverload.cpp.

References clang::APValue::getFloat(), clang::ASTContext::getFloatingTypeOrder(), clang::ASTContext::getFloatTypeSemantics(), clang::ASTContext::getIntWidth(), clang::ASTContext::getLangOpts(), clang::Expr::getType(), clang::ICK_Boolean_Conversion, clang::ICK_Floating_Conversion, clang::ICK_Floating_Integral, clang::ICK_Integral_Conversion, clang::IgnoreNarrowingConversion(), clang::Expr::isCXX11ConstantExpr(), clang::APValue::isFloat(), clang::Expr::isIntegerConstantExpr(), clang::NK_Constant_Narrowing, clang::NK_Not_Narrowing, clang::NK_Type_Narrowing, and clang::NK_Variable_Narrowing.

Referenced by clang::Sema::CheckConvertedConstantExpression(), and DiagnoseNarrowingInInitList().

ImplicitConversionRank clang::StandardConversionSequence::getRank ( ) const

getRank - Retrieve the rank of this standard conversion sequence (C++ 13.3.3.1.1p3). The rank is the largest rank of each of the implicit conversions.

Definition at line 208 of file SemaOverload.cpp.

References clang::GetConversionRank(), and clang::ICR_Exact_Match.

Referenced by clang::CompareStandardConversionSequences().

QualType clang::StandardConversionSequence::getToType ( unsigned  Idx) const [inline]
bool clang::StandardConversionSequence::isIdentityConversion ( ) const [inline]

Definition at line 233 of file Overload.h.

References clang::ICK_Identity, Second, and Third.

Referenced by clang::compareStandardConversionSubsets().

bool clang::StandardConversionSequence::isPointerConversionToBool ( ) const

isPointerConversionToBool - Determines whether this conversion is a conversion of a pointer or pointer-to-member to bool. This is used as part of the ranking of standard conversion sequences (C++ 13.3.3.2p4).

Definition at line 223 of file SemaOverload.cpp.

References clang::ICK_Array_To_Pointer, clang::ICK_Function_To_Pointer, and isBooleanType().

Referenced by clang::CompareStandardConversionSequences().

bool clang::StandardConversionSequence::isPointerConversionToVoidPointer ( ASTContext Context) const

isPointerConversionToVoidPointer - Determines whether this conversion is a conversion of a pointer to a void pointer. This is used as part of the ranking of standard conversion sequences (C++ 13.3.3.2p4).

Definition at line 245 of file SemaOverload.cpp.

References clang::ASTContext::getArrayDecayedType(), clang::ICK_Array_To_Pointer, and clang::ICK_Pointer_Conversion.

Referenced by clang::CompareStandardConversionSequences().

void clang::StandardConversionSequence::setAllToTypes ( QualType  T) [inline]
void clang::StandardConversionSequence::setAsIdentityConversion ( )
void clang::StandardConversionSequence::setFromType ( QualType  T) [inline]
void clang::StandardConversionSequence::setToType ( unsigned  Idx,
QualType  T 
) [inline]

Member Data Documentation

Whether this binds an implicit object argument to a non-static member function without a ref-qualifier.

Definition at line 189 of file Overload.h.

Referenced by clang::isBetterReferenceBindingKind(), clang::TryListConversion(), and clang::TryObjectArgumentInitialization().

Whether we're binding to a function lvalue.

Definition at line 182 of file Overload.h.

Referenced by clang::isBetterReferenceBindingKind(), clang::TryListConversion(), and clang::TryObjectArgumentInitialization().

Whether we're binding to an rvalue.

Definition at line 185 of file Overload.h.

Referenced by clang::isBetterReferenceBindingKind(), clang::TryListConversion(), and clang::TryObjectArgumentInitialization().

CopyConstructor - The copy constructor that is used to perform this conversion, when the conversion is actually just the initialization of an object via copy constructor. Such conversions are either identity conversions or derived-to-base conversions.

Definition at line 210 of file Overload.h.

Referenced by clang::IsStandardConversion(), clang::Sema::PerformImplicitConversion(), clang::TryImplicitConversion(), and clang::TryUserDefinedConversion().

Whether this is the deprecated conversion of a string literal to a pointer to non-const character data (C++ 4.2p2).

Definition at line 159 of file Overload.h.

Referenced by clang::CompareQualificationConversions(), clang::IsStandardConversion(), and clang::Sema::PerformImplicitConversion().

DirectBinding - True when this is a reference binding that is a direct binding (C++ [dcl.init.ref]).

Definition at line 175 of file Overload.h.

Referenced by clang::FindConversionForRefInit(), and clang::TryObjectArgumentInitialization().

FromType - The type that this conversion is converting from. This is an opaque pointer that can be translated into a QualType.

Definition at line 198 of file Overload.h.

Referenced by getFromType(), and setFromType().

IncompatibleObjC - Whether this is an Objective-C conversion that we should warn about (if we actually use it).

Definition at line 167 of file Overload.h.

Referenced by clang::IsStandardConversion(), and clang::Sema::PerformImplicitConversion().

Whether this is an lvalue reference binding (otherwise, it's an rvalue reference binding).

Definition at line 179 of file Overload.h.

Referenced by clang::isBetterReferenceBindingKind(), clang::TryListConversion(), and clang::TryObjectArgumentInitialization().

Whether this binds a reference to an object with a different Objective-C lifetime qualifier.

Definition at line 193 of file Overload.h.

Referenced by clang::CompareStandardConversionSequences(), and clang::TryListConversion().

Whether the qualification conversion involves a change in the Objective-C lifetime (for automatic reference counting).

Definition at line 163 of file Overload.h.

Referenced by clang::CompareQualificationConversions(), clang::IsStandardConversion(), and clang::tryAtomicConversion().

ReferenceBinding - True when this is a reference binding (C++ [over.ics.ref]).

Definition at line 171 of file Overload.h.

Referenced by clang::CompareStandardConversionSequences(), clang::FindConversionForRefInit(), clang::TryListConversion(), and clang::TryObjectArgumentInitialization().

ToType - The types that this conversion is converting to in each step. This is an opaque pointer that can be translated into a QualType.

Definition at line 203 of file Overload.h.

Referenced by clang::dropPointerConversion(), getToType(), setAllToTypes(), and setToType().


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