clang  10.0.0svn
Enumerations | Functions
SemaExprObjC.cpp File Reference
#include "clang/Sema/SemaInternal.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/ExprObjC.h"
#include "clang/AST/StmtVisitor.h"
#include "clang/AST/TypeLoc.h"
#include "clang/Analysis/DomainSpecific/CocoaConventions.h"
#include "clang/Edit/Commit.h"
#include "clang/Edit/Rewriters.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Sema/Initialization.h"
#include "clang/Sema/Lookup.h"
#include "clang/Sema/Scope.h"
#include "clang/Sema/ScopeInfo.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/ConvertUTF.h"
Include dependency graph for SemaExprObjC.cpp:

Go to the source code of this file.

Enumerations

enum  ACCResult
 A result from the cast checker. More...
 

Functions

static bool validateBoxingMethod (Sema &S, SourceLocation Loc, const ObjCInterfaceDecl *Class, Selector Sel, const ObjCMethodDecl *Method)
 Emits an error if the given method does not exist, or if the return type is not an Objective-C object. More...
 
static NSAPI::NSClassIdKindKind ClassKindFromLiteralKind (Sema::ObjCLiteralKind LiteralKind)
 Maps ObjCLiteralKind to NSClassIdKindKind. More...
 
static bool ValidateObjCLiteralInterfaceDecl (Sema &S, ObjCInterfaceDecl *Decl, SourceLocation Loc, Sema::ObjCLiteralKind LiteralKind)
 Validates ObjCInterfaceDecl availability. More...
 
enum  ARCConversionTypeClass {
  ACTC_none, ACTC_retainable, ACTC_indirectRetainable, ACTC_voidPtr,
  ACTC_coreFoundation
}
 
static ObjCInterfaceDecl * LookupObjCInterfaceDeclForLiteral (Sema &S, SourceLocation Loc, Sema::ObjCLiteralKind LiteralKind)
 Looks up ObjCInterfaceDecl of a given NSClassIdKindKind. More...
 
static ObjCMethodDecl * getNSNumberFactoryMethod (Sema &S, SourceLocation Loc, QualType NumberType, bool isLiteral=false, SourceRange R=SourceRange())
 Retrieve the NSNumber factory method that should be used to create an Objective-C literal for the given type. More...
 
static ExprResult CheckObjCCollectionLiteralElement (Sema &S, Expr *Element, QualType T, bool ArrayLiteral=false)
 Check that the given expression is a valid element of an Objective-C collection literal. More...
 
static bool HelperToDiagnoseMismatchedMethodsInGlobalPool (Sema &S, SourceLocation AtLoc, SourceLocation LParenLoc, SourceLocation RParenLoc, ObjCMethodDecl *Method, ObjCMethodList &MethList)
 
static void DiagnoseMismatchedSelectors (Sema &S, SourceLocation AtLoc, ObjCMethodDecl *Method, SourceLocation LParenLoc, SourceLocation RParenLoc, bool WarnMultipleSelectors)
 
static QualType stripObjCInstanceType (ASTContext &Context, QualType T)
 
static QualType getBaseMessageSendResultType (Sema &S, QualType ReceiverType, ObjCMethodDecl *Method, bool isClassMessage, bool isSuperMessage)
 Determine the result type of a message send based on the receiver type, method, and the kind of message send. More...
 
static const ObjCMethodDecl * findExplicitInstancetypeDeclarer (const ObjCMethodDecl *MD, QualType instancetype)
 Look for an ObjC method whose result type exactly matches the given type. More...
 
static void applyCocoaAPICheck (Sema &S, const ObjCMessageExpr *Msg, unsigned DiagID, bool(*refactor)(const ObjCMessageExpr *, const NSAPI &, edit::Commit &))
 
static void checkCocoaAPI (Sema &S, const ObjCMessageExpr *Msg)
 
static void checkFoundationAPI (Sema &S, SourceLocation Loc, const ObjCMethodDecl *Method, ArrayRef< Expr *> Args, QualType ReceiverType, bool IsClassObjectCall)
 
static void DiagnoseCStringFormatDirectiveInObjCAPI (Sema &S, ObjCMethodDecl *Method, Selector Sel, Expr **Args, unsigned NumArgs)
 Diagnose use of s directive in an NSString which is being passed as formatting string to formatting method. More...
 
static bool isMethodDeclaredInRootProtocol (Sema &S, const ObjCMethodDecl *M)
 
static void RemoveSelectorFromWarningCache (Sema &S, Expr *Arg)
 
static bool isAnyRetainable (ARCConversionTypeClass ACTC)
 
static bool isAnyCLike (ARCConversionTypeClass ACTC)
 
static ARCConversionTypeClass classifyTypeForARCConversion (QualType type)
 
static void addFixitForObjCARCConversion (Sema &S, DiagnosticBuilder &DiagB, Sema::CheckedConversionKind CCK, SourceLocation afterLParen, QualType castType, Expr *castExpr, Expr *realCast, const char *bridgeKeyword, const char *CFBridgeName)
 
template<typename T >
static T * getObjCBridgeAttr (const TypedefType *TD)
 
static ObjCBridgeRelatedAttr * ObjCBridgeRelatedAttrFromType (QualType T, TypedefNameDecl *&TDNDecl)
 
static void diagnoseObjCARCConversion (Sema &S, SourceRange castRange, QualType castType, ARCConversionTypeClass castACTC, Expr *castExpr, Expr *realCast, ARCConversionTypeClass exprACTC, Sema::CheckedConversionKind CCK)
 
template<typename TB >
static bool CheckObjCBridgeNSCast (Sema &S, QualType castType, Expr *castExpr, bool &HadTheAttribute, bool warn)
 
template<typename TB >
static bool CheckObjCBridgeCFCast (Sema &S, QualType castType, Expr *castExpr, bool &HadTheAttribute, bool warn)
 
static Expr * maybeUndoReclaimObject (Expr *e)
 Look for an ObjCReclaimReturnedObject cast and destroy it. More...
 

Enumeration Type Documentation

◆ ACCResult

enum ACCResult

A result from the cast checker.

Definition at line 3311 of file SemaExprObjC.cpp.

◆ ARCConversionTypeClass

enum ARCConversionTypeClass
Enumerator
ACTC_none 

int, void, struct A

ACTC_retainable 

id, void (^)()

ACTC_indirectRetainable 

id*, id***, void (^*)(),

ACTC_voidPtr 

void* might be a normal C type, or it might a CF type.

ACTC_coreFoundation 

struct A*

Definition at line 3241 of file SemaExprObjC.cpp.

Function Documentation

◆ addFixitForObjCARCConversion()

static void addFixitForObjCARCConversion ( Sema &  S,
DiagnosticBuilder &  DiagB,
Sema::CheckedConversionKind  CCK,
SourceLocation  afterLParen,
QualType  castType,
Expr *  castExpr,
Expr *  realCast,
const char *  bridgeKeyword,
const char *  CFBridgeName 
)
static

Definition at line 3545 of file SemaExprObjC.cpp.

References clang::DiagnosticBuilder::AddFixItHint(), clang::ast_matchers::castExpr, clang::Sema::CCK_CStyleCast, clang::Sema::CCK_ForBuiltinOverloadedOp, clang::Sema::CCK_FunctionalCast, clang::Sema::CCK_ImplicitConversion, clang::Sema::CCK_OtherCast, clang::FixItHint::CreateInsertion(), clang::FixItHint::CreateReplacement(), clang::QualType::getAsString(), clang::SourceRange::getBegin(), clang::SourceManager::getCharacterData(), clang::SourceRange::getEnd(), clang::Sema::getLangOpts(), clang::Sema::getLocForEndOfToken(), clang::SourceLocation::getLocWithOffset(), clang::Sema::getSourceManager(), clang::Stmt::getSourceRange(), clang::Expr::IgnoreImpCasts(), clang::Lexer::isIdentifierBodyChar(), clang::transformer::range(), and SM.

Referenced by diagnoseObjCARCConversion().

◆ applyCocoaAPICheck()

static void applyCocoaAPICheck ( Sema &  S,
const ObjCMessageExpr *  Msg,
unsigned  DiagID,
bool(*)(const ObjCMessageExpr *, const NSAPI &, edit::Commit &)  refactor 
)
static

Definition at line 2289 of file SemaExprObjC.cpp.

Referenced by checkCocoaAPI().

◆ checkCocoaAPI()

static void checkCocoaAPI ( Sema &  S,
const ObjCMessageExpr *  Msg 
)
static

Definition at line 2328 of file SemaExprObjC.cpp.

References applyCocoaAPICheck(), and clang::edit::rewriteObjCRedundantCallWithLiteral().

◆ checkFoundationAPI()

static void checkFoundationAPI ( Sema &  S,
SourceLocation  Loc,
const ObjCMethodDecl *  Method,
ArrayRef< Expr *>  Args,
QualType  ReceiverType,
bool  IsClassObjectCall 
)
static

Definition at line 2333 of file SemaExprObjC.cpp.

References clang::Sema::Diag(), clang::Type::getAs(), clang::ObjCMethodDecl::getBeginLoc(), clang::Selector::getMethodFamily(), clang::ObjCMethodDecl::getReturnType(), clang::ObjCMethodDecl::getSelector(), clang::Type::isExtVectorType(), clang::Type::isRecordType(), clang::Type::isUnionType(), clang::Type::isVectorType(), clang::OMF_performSelector, and Ret().

◆ CheckObjCBridgeCFCast()

template<typename TB >
static bool CheckObjCBridgeCFCast ( Sema &  S,
QualType  castType,
Expr *  castExpr,
bool &  HadTheAttribute,
bool  warn 
)
static

Definition at line 3868 of file SemaExprObjC.cpp.

References clang::Sema::Context, clang::Sema::Diag(), clang::Type::getAsObjCInterfacePointerType(), clang::Decl::getBeginLoc(), clang::Stmt::getBeginLoc(), clang::TypeDecl::getBeginLoc(), clang::LookupResult::getFoundDecl(), clang::Type::getPointeeType(), clang::Expr::getType(), clang::QualType::getTypePtr(), clang::TypedefNameDecl::getUnderlyingType(), clang::Type::isObjCIdType(), clang::ObjCInterfaceDecl::isSuperClassOf(), clang::Sema::LookupName(), clang::Sema::LookupOrdinaryName, clang::ASTContext::QIdProtocolsAdoptObjCObjectProtocols(), clang::Target, and clang::Sema::TUScope.

◆ CheckObjCBridgeNSCast()

template<typename TB >
static bool CheckObjCBridgeNSCast ( Sema &  S,
QualType  castType,
Expr *  castExpr,
bool &  HadTheAttribute,
bool  warn 
)
static

Definition at line 3802 of file SemaExprObjC.cpp.

References clang::Sema::Context, clang::Sema::Diag(), clang::Type::getAsObjCInterfacePointerType(), clang::Decl::getBeginLoc(), clang::Stmt::getBeginLoc(), clang::TypeDecl::getBeginLoc(), clang::LookupResult::getFoundDecl(), clang::NamedDecl::getName(), clang::Type::getPointeeType(), clang::Expr::getType(), clang::QualType::getTypePtr(), clang::TypedefNameDecl::getUnderlyingType(), clang::Type::isObjCIdType(), clang::ObjCInterfaceDecl::isSuperClassOf(), clang::Sema::LookupName(), clang::Sema::LookupOrdinaryName, clang::ASTContext::ObjCObjectAdoptsQTypeProtocols(), clang::Target, and clang::Sema::TUScope.

◆ CheckObjCCollectionLiteralElement()

static ExprResult CheckObjCCollectionLiteralElement ( Sema &  S,
Expr *  Element,
QualType  T,
bool  ArrayLiteral = false 
)
static

Check that the given expression is a valid element of an Objective-C collection literal.

Definition at line 384 of file SemaExprObjC.cpp.

References clang::Sema::BuildObjCNumericLiteral(), clang::Sema::BuildObjCStringLiteral(), clang::Sema::CheckPlaceholderExpr(), clang::Sema::Context, clang::InitializationKind::CreateCopy(), clang::FixItHint::CreateInsertion(), clang::Sema::DefaultLvalueConversion(), clang::Sema::Diag(), clang::ExprError(), clang::ActionResult< PtrTy, CompressInvalid >::get(), clang::Stmt::getBeginLoc(), clang::Sema::getLangOpts(), clang::Stmt::getSourceRange(), clang::StringLiteral::getString(), clang::Expr::getType(), clang::InitializedEntity::InitializeParameter(), clang::Type::isBlockPointerType(), clang::ActionResult< PtrTy, CompressInvalid >::isInvalid(), clang::Type::isObjCObjectPointerType(), clang::Type::isRecordType(), clang::Expr::isTypeDependent(), clang::Sema::NSAPIObj, and clang::Sema::PerformCopyInitialization().

◆ classifyTypeForARCConversion()

static ARCConversionTypeClass classifyTypeForARCConversion ( QualType  type)
static

Definition at line 3270 of file SemaExprObjC.cpp.

References ACTC_coreFoundation, ACTC_indirectRetainable, ACTC_none, ACTC_retainable, ACTC_voidPtr, clang::Type::getAs(), clang::Type::getAsArrayTypeUnsafe(), clang::Type::getPointeeType(), clang::Type::isObjCARCBridgableType(), clang::Type::isRecordType(), and clang::Type::isVoidType().

Referenced by clang::Sema::CheckObjCBridgeRelatedCast(), clang::Sema::CheckObjCBridgeRelatedConversions(), clang::Sema::CheckObjCConversion(), clang::Sema::CheckTollFreeBridgeCast(), clang::Sema::CheckTollFreeBridgeStaticCast(), and clang::Sema::diagnoseARCUnbridgedCast().

◆ ClassKindFromLiteralKind()

static NSAPI::NSClassIdKindKind ClassKindFromLiteralKind ( Sema::ObjCLiteralKind  LiteralKind)
static

Maps ObjCLiteralKind to NSClassIdKindKind.

Definition at line 169 of file SemaExprObjC.cpp.

References clang::NSAPI::ClassId_NSArray, clang::NSAPI::ClassId_NSDictionary, clang::NSAPI::ClassId_NSNumber, clang::NSAPI::ClassId_NSString, clang::NSAPI::ClassId_NSValue, clang::Sema::LK_Array, clang::Sema::LK_Block, clang::Sema::LK_Boxed, clang::Sema::LK_Dictionary, clang::Sema::LK_None, clang::Sema::LK_Numeric, and clang::Sema::LK_String.

◆ DiagnoseCStringFormatDirectiveInObjCAPI()

static void DiagnoseCStringFormatDirectiveInObjCAPI ( Sema &  S,
ObjCMethodDecl *  Method,
Selector  Sel,
Expr **  Args,
unsigned  NumArgs 
)
static

Diagnose use of s directive in an NSString which is being passed as formatting string to formatting method.

Definition at line 2383 of file SemaExprObjC.cpp.

References clang::Sema::Diag(), clang::Sema::FormatStringHasSArg(), clang::NamedDecl::getDeclName(), clang::Expr::getExprLoc(), clang::Sema::GetFormatNSStringIdx(), clang::Decl::getLocation(), clang::StringLiteral::getString(), clang::Selector::getStringFormatFamily(), clang::Expr::IgnoreParenImpCasts(), clang::SFF_NSString, and clang::Decl::specific_attrs().

◆ DiagnoseMismatchedSelectors()

static void DiagnoseMismatchedSelectors ( Sema &  S,
SourceLocation  AtLoc,
ObjCMethodDecl *  Method,
SourceLocation  LParenLoc,
SourceLocation  RParenLoc,
bool  WarnMultipleSelectors 
)
static

Definition at line 1152 of file SemaExprObjC.cpp.

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

◆ diagnoseObjCARCConversion()

static void diagnoseObjCARCConversion ( Sema &  S,
SourceRange  castRange,
QualType  castType,
ARCConversionTypeClass  castACTC,
Expr *  castExpr,
Expr *  realCast,
ARCConversionTypeClass  exprACTC,
Sema::CheckedConversionKind  CCK 
)
static

Definition at line 3670 of file SemaExprObjC.cpp.

References ACTC_coreFoundation, ACTC_indirectRetainable, ACTC_none, ACTC_retainable, ACTC_voidPtr, addFixitForObjCARCConversion(), clang::Sema::CCK_OtherCast, clang::Sema::Context, clang::Sema::Diag(), clang::SourceRange::getBegin(), clang::Expr::getExprLoc(), clang::Sema::getLocForEndOfToken(), clang::Stmt::getSourceRange(), clang::Expr::getType(), isAnyRetainable(), clang::Type::isBlockPointerType(), clang::Sema::isCast(), clang::Sema::isKnownName(), clang::Type::isPointerType(), clang::SourceLocation::isValid(), clang::SourceRange::isValid(), clang::Sema::makeUnavailableInSystemHeader(), and ObjCBridgeRelatedAttrFromType().

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

◆ findExplicitInstancetypeDeclarer()

static const ObjCMethodDecl* findExplicitInstancetypeDeclarer ( const ObjCMethodDecl *  MD,
QualType  instancetype 
)
static

Look for an ObjC method whose result type exactly matches the given type.

Definition at line 1465 of file SemaExprObjC.cpp.

References clang::Decl::getDeclContext(), clang::ObjCContainerDecl::getMethod(), clang::ObjCMethodDecl::getOverriddenMethods(), clang::ObjCMethodDecl::getReturnType(), clang::ObjCMethodDecl::getSelector(), and clang::ObjCMethodDecl::isInstanceMethod().

◆ getBaseMessageSendResultType()

static QualType getBaseMessageSendResultType ( Sema &  S,
QualType  ReceiverType,
ObjCMethodDecl *  Method,
bool  isClassMessage,
bool  isSuperMessage 
)
static

Determine the result type of a message send based on the receiver type, method, and the kind of message send.

This is the "base" result type, which will still need to be adjusted to account for nullability.

Definition at line 1303 of file SemaExprObjC.cpp.

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

◆ getNSNumberFactoryMethod()

static ObjCMethodDecl* getNSNumberFactoryMethod ( Sema &  S,
SourceLocation  Loc,
QualType  NumberType,
bool  isLiteral = false,
SourceRange  R = SourceRange() 
)
static

Retrieve the NSNumber factory method that should be used to create an Objective-C literal for the given type.

Definition at line 241 of file SemaExprObjC.cpp.

◆ getObjCBridgeAttr()

template<typename T >
static T* getObjCBridgeAttr ( const TypedefType *  TD)
inlinestatic

Definition at line 3645 of file SemaExprObjC.cpp.

References clang::Type::getAs(), clang::TypedefType::getDecl(), clang::RecordDecl::getMostRecentDecl(), clang::Type::getPointeeType(), clang::TypedefNameDecl::getUnderlyingType(), and clang::Type::isPointerType().

◆ HelperToDiagnoseMismatchedMethodsInGlobalPool()

static bool HelperToDiagnoseMismatchedMethodsInGlobalPool ( Sema &  S,
SourceLocation  AtLoc,
SourceLocation  LParenLoc,
SourceLocation  RParenLoc,
ObjCMethodDecl *  Method,
ObjCMethodList &  MethList 
)
static

Definition at line 1121 of file SemaExprObjC.cpp.

◆ isAnyCLike()

static bool isAnyCLike ( ARCConversionTypeClass  ACTC)
static

Definition at line 3264 of file SemaExprObjC.cpp.

References ACTC_coreFoundation, ACTC_none, and ACTC_voidPtr.

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

◆ isAnyRetainable()

static bool isAnyRetainable ( ARCConversionTypeClass  ACTC)
static

Definition at line 3258 of file SemaExprObjC.cpp.

References ACTC_coreFoundation, ACTC_retainable, and ACTC_voidPtr.

Referenced by diagnoseObjCARCConversion().

◆ isMethodDeclaredInRootProtocol()

static bool isMethodDeclaredInRootProtocol ( Sema &  S,
const ObjCMethodDecl *  M 
)
static

Definition at line 2624 of file SemaExprObjC.cpp.

References clang::NSAPI::ClassId_NSObject, clang::Decl::getDeclContext(), clang::Sema::LookupOrdinaryName, clang::Sema::LookupSingleName(), clang::Sema::NSAPIObj, P, and clang::Sema::TUScope.

◆ LookupObjCInterfaceDeclForLiteral()

static ObjCInterfaceDecl* LookupObjCInterfaceDeclForLiteral ( Sema &  S,
SourceLocation  Loc,
Sema::ObjCLiteralKind  LiteralKind 
)
static

Looks up ObjCInterfaceDecl of a given NSClassIdKindKind.

Used to create ObjC literals, such as NSDictionary (}), NSArray (@[]) and Boxed Expressions (@())

Definition at line 217 of file SemaExprObjC.cpp.

Referenced by clang::Sema::BuildObjCArrayLiteral(), and clang::Sema::BuildObjCDictionaryLiteral().

◆ maybeUndoReclaimObject()

static Expr* maybeUndoReclaimObject ( Expr *  e)
static

Look for an ObjCReclaimReturnedObject cast and destroy it.

Definition at line 4397 of file SemaExprObjC.cpp.

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

◆ ObjCBridgeRelatedAttrFromType()

static ObjCBridgeRelatedAttr* ObjCBridgeRelatedAttrFromType ( QualType  T,
TypedefNameDecl *&  TDNDecl 
)
static

Definition at line 3657 of file SemaExprObjC.cpp.

References clang::QualType::getTypePtr(), and clang::TypedefNameDecl::getUnderlyingType().

Referenced by clang::Sema::checkObjCBridgeRelatedComponents(), and diagnoseObjCARCConversion().

◆ RemoveSelectorFromWarningCache()

static void RemoveSelectorFromWarningCache ( Sema &  S,
Expr *  Arg 
)
static

Definition at line 3197 of file SemaExprObjC.cpp.

References clang::Expr::IgnoreParenCasts(), and clang::Sema::ReferencedSelectors.

◆ stripObjCInstanceType()

static QualType stripObjCInstanceType ( ASTContext &  Context,
QualType  T 
)
static

Definition at line 1279 of file SemaExprObjC.cpp.

◆ validateBoxingMethod()

static bool validateBoxingMethod ( Sema &  S,
SourceLocation  Loc,
const ObjCInterfaceDecl *  Class,
Selector  Sel,
const ObjCMethodDecl *  Method 
)
static

Emits an error if the given method does not exist, or if the return type is not an Objective-C object.

Definition at line 146 of file SemaExprObjC.cpp.

◆ ValidateObjCLiteralInterfaceDecl()

static bool ValidateObjCLiteralInterfaceDecl ( Sema &  S,
ObjCInterfaceDecl *  Decl,
SourceLocation  Loc,
Sema::ObjCLiteralKind  LiteralKind 
)
static

Validates ObjCInterfaceDecl availability.

ObjCInterfaceDecl, used to create ObjC literals, should be defined if clang not in a debugger mode.

Definition at line 195 of file SemaExprObjC.cpp.

Generated on Mon Nov 4 2019 00:55:40 for clang by   doxygen 1.8.13