An expression that sends a message to the given Objective-C object or class. More...
#include "clang/AST/ExprObjC.h"
Public Member Functions | |
| bool | isImplicit () const |
| Indicates whether the message send was implicitly generated by the implementation. | |
| ReceiverKind | getReceiverKind () const |
| Determine the kind of receiver that this message is being sent to. | |
| QualType | getCallReturnType (ASTContext &Ctx) const |
| std::pair< const NamedDecl *, const WarnUnusedResultAttr * > | getUnusedResultAttr (ASTContext &Ctx) const |
| Returns the WarnUnusedResultAttr that is declared on the callee or its return type declaration, together with a NamedDecl that refers to the declaration the attribute is attached to. | |
| bool | hasUnusedResultAttr (ASTContext &Ctx) const |
| Returns true if this message send should warn on unused results. | |
| SourceRange | getReceiverRange () const |
| Source range of the receiver. | |
| bool | isInstanceMessage () const |
| Determine whether this is an instance message to either a computed object or to super. | |
| bool | isClassMessage () const |
| Determine whether this is an class message to either a specified class or to super. | |
| Expr * | getInstanceReceiver () |
| Returns the object expression (receiver) for an instance message, or null for a message that is not an instance message. | |
| const Expr * | getInstanceReceiver () const |
| void | setInstanceReceiver (Expr *rec) |
| Turn this message send into an instance message that computes the receiver object with the given expression. | |
| QualType | getClassReceiver () const |
| Returns the type of a class message send, or NULL if the message is not a class message. | |
| TypeSourceInfo * | getClassReceiverTypeInfo () const |
| Returns a type-source information of a class message send, or nullptr if the message is not a class message. | |
| void | setClassReceiver (TypeSourceInfo *TSInfo) |
| SourceLocation | getSuperLoc () const |
| Retrieve the location of the 'super' keyword for a class or instance message to 'super', otherwise an invalid source location. | |
| QualType | getReceiverType () const |
| Retrieve the receiver type to which this message is being directed. | |
| ObjCInterfaceDecl * | getReceiverInterface () const |
| Retrieve the Objective-C interface to which this message is being directed, if known. | |
| QualType | getSuperType () const |
| Retrieve the type referred to by 'super'. | |
| void | setSuper (SourceLocation Loc, QualType T, bool IsInstanceSuper) |
| Selector | getSelector () const |
| void | setSelector (Selector S) |
| const ObjCMethodDecl * | getMethodDecl () const |
| ObjCMethodDecl * | getMethodDecl () |
| void | setMethodDecl (ObjCMethodDecl *MD) |
| ObjCMethodFamily | getMethodFamily () const |
| unsigned | getNumArgs () const |
| Return the number of actual arguments in this message, not counting the receiver. | |
| Expr ** | getArgs () |
| Retrieve the arguments to this message, not including the receiver. | |
| 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. | |
| bool | isDelegateInitCall () const |
| isDelegateInitCall - Answers whether this message send has been tagged as a "delegate init call", i.e. | |
| void | setDelegateInitCall (bool isDelegate) |
| SourceLocation | getLeftLoc () const |
| SourceLocation | getRightLoc () const |
| SourceLocation | getSelectorStartLoc () const |
| SourceLocation | getSelectorLoc (unsigned Index) const |
| void | getSelectorLocs (SmallVectorImpl< SourceLocation > &SelLocs) const |
| unsigned | getNumSelectorLocs () const |
| void | setSourceRange (SourceRange R) |
| SourceLocation | getBeginLoc () const LLVM_READONLY |
| SourceLocation | getEndLoc () const LLVM_READONLY |
| child_range | children () |
| const_child_range | children () const |
| llvm::iterator_range< arg_iterator > | arguments () |
| llvm::iterator_range< const_arg_iterator > | arguments () const |
| arg_iterator | arg_begin () |
| arg_iterator | arg_end () |
| const_arg_iterator | arg_begin () const |
| const_arg_iterator | arg_end () const |
| Public Member Functions inherited from clang::Expr | |
| Expr ()=delete | |
| Expr (const Expr &)=delete | |
| Expr (Expr &&)=delete | |
| Expr & | operator= (const Expr &)=delete |
| Expr & | operator= (Expr &&)=delete |
| QualType | getType () const |
| void | setType (QualType t) |
| QualType | getEnumCoercedType (const ASTContext &Ctx) const |
| If this expression is an enumeration constant, return the enumeration type under which said constant was declared. | |
| ExprDependence | getDependence () const |
| bool | isValueDependent () const |
| Determines whether the value of this expression depends on. | |
| bool | isTypeDependent () const |
| Determines whether the type of this expression depends on. | |
| bool | isInstantiationDependent () const |
| Whether this expression is instantiation-dependent, meaning that it depends in some way on. | |
| bool | containsUnexpandedParameterPack () const |
| Whether this expression contains an unexpanded parameter pack (for C++11 variadic templates). | |
| bool | containsErrors () const |
| Whether this expression contains subexpressions which had errors. | |
| SourceLocation | getExprLoc () const LLVM_READONLY |
| getExprLoc - Return the preferred location for the arrow when diagnosing a problem with a generic expression. | |
| bool | isReadIfDiscardedInCPlusPlus11 () const |
| Determine whether an lvalue-to-rvalue conversion should implicitly be applied to this expression if it appears as a discarded-value expression in C++11 onwards. | |
| 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. | |
| bool | isLValue () const |
| isLValue - True if this expression is an "l-value" according to the rules of the current language. | |
| bool | isPRValue () const |
| bool | isXValue () const |
| bool | isGLValue () const |
| LValueClassification | ClassifyLValue (ASTContext &Ctx) const |
| Reasons why an expression might not be an l-value. | |
| 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. | |
| Classification | Classify (ASTContext &Ctx) const |
| Classify - Classify this expression according to the C++11 expression taxonomy. | |
| 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. | |
| FPOptions | getFPFeaturesInEffect (const LangOptions &LO) const |
| Returns the set of floating point options that apply to this expression. | |
| ExprValueKind | getValueKind () const |
| getValueKind - The value kind that this expression produces. | |
| ExprObjectKind | getObjectKind () const |
| getObjectKind - The object kind that this expression produces. | |
| bool | isOrdinaryOrBitFieldObject () const |
| void | setValueKind (ExprValueKind Cat) |
| setValueKind - Set the value kind produced by this expression. | |
| void | setObjectKind (ExprObjectKind Cat) |
| setObjectKind - Set the object kind produced by this expression. | |
| bool | refersToBitField () const |
| Returns true if this expression is a gl-value that potentially refers to a bit-field. | |
| FieldDecl * | getSourceBitField () |
| If this expression refers to a bit-field, retrieve the declaration of that bit-field. | |
| EnumConstantDecl * | getEnumConstantDecl () |
| If this expression refers to an enum constant, retrieve its declaration. | |
| const EnumConstantDecl * | getEnumConstantDecl () const |
| 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. | |
| bool | isObjCSelfExpr () const |
| Check if this expression is the ObjC 'self' implicit parameter. | |
| bool | refersToVectorElement () const |
| Returns whether this expression refers to a vector element. | |
| bool | refersToMatrixElement () const |
| Returns whether this expression refers to a matrix element. | |
| bool | refersToGlobalRegisterVar () const |
| Returns whether this expression refers to a global register variable. | |
| bool | hasPlaceholderType () const |
| Returns whether this expression has a placeholder type. | |
| bool | hasPlaceholderType (BuiltinType::Kind K) const |
| Returns whether this expression has a specific placeholder type. | |
| bool | isKnownToHaveBooleanValue (bool Semantic=true) const |
| isKnownToHaveBooleanValue - Return true if this is an integer expression that is known to return 0 or 1. | |
| bool | isFlexibleArrayMemberLike (const ASTContext &Context, LangOptions::StrictFlexArraysLevelKind StrictFlexArraysLevel, bool IgnoreTemplateOrMacroSubstitution=false) const |
| Check whether this array fits the idiom of a flexible array member, depending on the value of -fstrict-flex-array. | |
| std::optional< llvm::APSInt > | getIntegerConstantExpr (const ASTContext &Ctx) const |
| isIntegerConstantExpr - Return the value if this expression is a valid integer constant expression. | |
| bool | isIntegerConstantExpr (const ASTContext &Ctx) const |
| bool | isCXX98IntegralConstantExpr (const ASTContext &Ctx) const |
| isCXX98IntegralConstantExpr - Return true if this expression is an integral constant expression in C++98. | |
| bool | isCXX11ConstantExpr (const ASTContext &Ctx, APValue *Result=nullptr) const |
| isCXX11ConstantExpr - Return true if this expression is a constant expression in C++11. | |
| 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. | |
| const ValueDecl * | getAsBuiltinConstantDeclRef (const ASTContext &Context) const |
| If this expression is an unambiguous reference to a single declaration, in the style of __builtin_function_start, return that declaration. | |
| 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. | |
| bool | EvaluateAsBooleanCondition (bool &Result, const ASTContext &Ctx, bool InConstantContext=false) 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. | |
| bool | EvaluateAsInt (EvalResult &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects, bool InConstantContext=false) 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. | |
| bool | EvaluateAsFloat (llvm::APFloat &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects, bool InConstantContext=false) 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. | |
| bool | EvaluateAsFixedPoint (EvalResult &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects, bool InConstantContext=false) const |
| EvaluateAsFixedPoint - Return true if this is a constant which we can fold and convert to a fixed point value. | |
| 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. | |
| 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. | |
| bool | hasNonTrivialCall (const ASTContext &Ctx) const |
| Determine whether this expression involves a call to any function that is not trivial. | |
| llvm::APSInt | EvaluateKnownConstInt (const ASTContext &Ctx, SmallVectorImpl< PartialDiagnosticAt > *Diag=nullptr) const |
| EvaluateKnownConstInt - Call EvaluateAsRValue and return the folded integer. | |
| llvm::APSInt | EvaluateKnownConstIntCheckOverflow (const ASTContext &Ctx, SmallVectorImpl< PartialDiagnosticAt > *Diag=nullptr) const |
| void | EvaluateForOverflow (const ASTContext &Ctx) const |
| bool | EvaluateAsLValue (EvalResult &Result, const ASTContext &Ctx, bool InConstantContext=false) const |
| EvaluateAsLValue - Evaluate an expression to see if we can fold it to an lvalue with link time known address, with no side-effects. | |
| bool | EvaluateAsInitializer (APValue &Result, const ASTContext &Ctx, const VarDecl *VD, SmallVectorImpl< PartialDiagnosticAt > &Notes, bool IsConstantInitializer) const |
| EvaluateAsInitializer - Evaluate an expression as if it were the initializer of the given declaration. | |
| 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. | |
| bool | EvaluateAsConstantExpr (EvalResult &Result, const ASTContext &Ctx, ConstantExprKind Kind=ConstantExprKind::Normal) const |
| Evaluate an expression that is required to be a constant expression. | |
| 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. | |
| bool | tryEvaluateStrLen (uint64_t &Result, ASTContext &Ctx) const |
| If the current Expr is a pointer, this will try to statically determine the strlen of the string pointed to. | |
| bool | EvaluateCharRangeAsString (std::string &Result, const Expr *SizeExpression, const Expr *PtrExpression, ASTContext &Ctx, EvalResult &Status) const |
| bool | EvaluateCharRangeAsString (APValue &Result, const Expr *SizeExpression, const Expr *PtrExpression, ASTContext &Ctx, EvalResult &Status) const |
| std::optional< std::string > | tryEvaluateString (ASTContext &Ctx) const |
| If the current Expr can be evaluated to a pointer to a null-terminated constant string, return the constant string (without the terminating null). | |
| NullPointerConstantKind | isNullPointerConstant (ASTContext &Ctx, NullPointerConstantValueDependence NPC) const |
| isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to a Null pointer constant. | |
| bool | isOBJCGCCandidate (ASTContext &Ctx) const |
| isOBJCGCCandidate - Return true if this expression may be used in a read/ write barrier. | |
| bool | isBoundMemberFunction (ASTContext &Ctx) const |
| Returns true if this expression is a bound member function. | |
| Expr * | IgnoreUnlessSpelledInSource () |
| Skip past any invisible AST nodes which might surround this statement, such as ExprWithCleanups or ImplicitCastExpr nodes, but also injected CXXMemberExpr and CXXConstructExpr which represent implicit conversions. | |
| const Expr * | IgnoreUnlessSpelledInSource () const |
| Expr * | IgnoreImpCasts () LLVM_READONLY |
| Skip past any implicit casts which might surround this expression until reaching a fixed point. | |
| const Expr * | IgnoreImpCasts () const |
| Expr * | IgnoreCasts () LLVM_READONLY |
| Skip past any casts which might surround this expression until reaching a fixed point. | |
| const Expr * | IgnoreCasts () const |
| Expr * | IgnoreImplicit () LLVM_READONLY |
| Skip past any implicit AST nodes which might surround this expression until reaching a fixed point. | |
| const Expr * | IgnoreImplicit () const |
| Expr * | IgnoreImplicitAsWritten () LLVM_READONLY |
| Skip past any implicit AST nodes which might surround this expression until reaching a fixed point. | |
| const Expr * | IgnoreImplicitAsWritten () const |
| Expr * | IgnoreParens () LLVM_READONLY |
| Skip past any parentheses which might surround this expression until reaching a fixed point. | |
| const Expr * | IgnoreParens () const |
| Expr * | IgnoreParenImpCasts () LLVM_READONLY |
| Skip past any parentheses and implicit casts which might surround this expression until reaching a fixed point. | |
| const Expr * | IgnoreParenImpCasts () const |
| Expr * | IgnoreParenCasts () LLVM_READONLY |
| Skip past any parentheses and casts which might surround this expression until reaching a fixed point. | |
| const Expr * | IgnoreParenCasts () const |
| Expr * | IgnoreConversionOperatorSingleStep () LLVM_READONLY |
| Skip conversion operators. | |
| const Expr * | IgnoreConversionOperatorSingleStep () const |
| Expr * | IgnoreParenLValueCasts () LLVM_READONLY |
| Skip past any parentheses and lvalue casts which might surround this expression until reaching a fixed point. | |
| const Expr * | IgnoreParenLValueCasts () const |
| Expr * | IgnoreParenNoopCasts (const ASTContext &Ctx) LLVM_READONLY |
| Skip past any parentheses and casts which do not change the value (including ptr->int casts of the same size) until reaching a fixed point. | |
| const Expr * | IgnoreParenNoopCasts (const ASTContext &Ctx) const |
| Expr * | IgnoreParenBaseCasts () LLVM_READONLY |
| Skip past any parentheses and derived-to-base casts until reaching a fixed point. | |
| const Expr * | IgnoreParenBaseCasts () const |
| bool | isDefaultArgument () const |
| Determine whether this expression is a default function argument. | |
| bool | isTemporaryObject (ASTContext &Ctx, const CXXRecordDecl *TempTy) const |
| Determine whether the result of this expression is a temporary object of the given class type. | |
| bool | isImplicitCXXThis () const |
| Whether this expression is an implicit reference to 'this' in C++. | |
| 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. | |
| const Expr * | getBestDynamicClassTypeExpr () const |
| Get the inner expression that determines the best dynamic class. | |
| 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. | |
| const Expr * | skipRValueSubobjectAdjustments () const |
| Public Member Functions inherited from clang::ValueStmt | |
| const Expr * | getExprStmt () const |
| Expr * | getExprStmt () |
| 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 ()=delete | |
| Stmt (const Stmt &)=delete | |
| Stmt (Stmt &&)=delete | |
| Stmt & | operator= (const Stmt &)=delete |
| Stmt & | operator= (Stmt &&)=delete |
| 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. | |
| SourceLocation | getBeginLoc () const LLVM_READONLY |
| SourceLocation | getEndLoc () const LLVM_READONLY |
| void | dump () const |
Dumps the specified AST fragment and all subtrees to llvm::errs(). | |
| void | dump (raw_ostream &OS, const ASTContext &Context) const |
| int64_t | getID (const ASTContext &Context) const |
| void | dumpColor () const |
| dumpColor - same as dump(), but forces color highlighting. | |
| 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. | |
| void | printPretty (raw_ostream &OS, PrinterHelper *Helper, const PrintingPolicy &Policy, unsigned Indentation=0, StringRef NewlineSymbol="\n", const ASTContext *Context=nullptr) const |
| void | printPrettyControlled (raw_ostream &OS, PrinterHelper *Helper, const PrintingPolicy &Policy, unsigned Indentation=0, StringRef NewlineSymbol="\n", const ASTContext *Context=nullptr) const |
| void | printJson (raw_ostream &Out, PrinterHelper *Helper, const PrintingPolicy &Policy, bool AddQuotes) const |
| Pretty-prints in JSON format. | |
| void | viewAST () const |
| viewAST - Visualize an AST rooted at this Stmt* using GraphViz. | |
| Stmt * | IgnoreContainers (bool IgnoreCaptured=false) |
| Skip no-op (attributed, compound) container stmts and skip captured stmt at the top, if IgnoreCaptured is true. | |
| const Stmt * | IgnoreContainers (bool IgnoreCaptured=false) const |
| const Stmt * | stripLabelLikeStatements () const |
| Strip off all label-like statements. | |
| 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, bool ProfileLambdaExpr=false) const |
| Produce a unique representation of the given statement. | |
| void | ProcessODRHash (llvm::FoldingSetNodeID &ID, ODRHash &Hash) const |
| Calculate a unique representation for a statement that is stable across compiler invocations. | |
Static Public Member Functions | |
| static ObjCMessageExpr * | Create (const ASTContext &Context, QualType T, ExprValueKind VK, SourceLocation LBracLoc, SourceLocation SuperLoc, bool IsInstanceSuper, QualType SuperType, Selector Sel, ArrayRef< SourceLocation > SelLocs, ObjCMethodDecl *Method, ArrayRef< Expr * > Args, SourceLocation RBracLoc, bool isImplicit) |
| Create a message send to super. | |
| static ObjCMessageExpr * | Create (const ASTContext &Context, QualType T, ExprValueKind VK, SourceLocation LBracLoc, TypeSourceInfo *Receiver, Selector Sel, ArrayRef< SourceLocation > SelLocs, ObjCMethodDecl *Method, ArrayRef< Expr * > Args, SourceLocation RBracLoc, bool isImplicit) |
| Create a class message send. | |
| static ObjCMessageExpr * | Create (const ASTContext &Context, QualType T, ExprValueKind VK, SourceLocation LBracLoc, Expr *Receiver, Selector Sel, ArrayRef< SourceLocation > SeLocs, ObjCMethodDecl *Method, ArrayRef< Expr * > Args, SourceLocation RBracLoc, bool isImplicit) |
| Create an instance message send. | |
| static ObjCMessageExpr * | CreateEmpty (const ASTContext &Context, unsigned NumArgs, unsigned NumStoredSelLocs) |
| Create an empty Objective-C message expression, to be filled in by subsequent calls. | |
| static bool | classof (const Stmt *T) |
| Static Public Member Functions inherited from clang::Expr | |
| static std::pair< const NamedDecl *, const WarnUnusedResultAttr * > | getUnusedResultAttrImpl (const Decl *Callee, QualType ReturnType) |
| Returns the WarnUnusedResultAttr that is declared on the callee or its return type declaration, together with a NamedDecl that refers to the declaration the attribute is attached to. | |
| static ExprValueKind | getValueKindForType (QualType T) |
| getValueKindForType - Given a formal return or parameter type, give its value kind. | |
| 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. | |
| static bool | isPotentialConstantExprUnevaluated (Expr *E, const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags) |
| isPotentialConstantExprUnevaluated - 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. | |
| static QualType | findBoundMemberType (const Expr *expr) |
| Given an expression of bound-member type, find the type of the member. | |
| static bool | hasAnyTypeDependentArguments (ArrayRef< Expr * > Exprs) |
| hasAnyTypeDependentArguments - Determines if any of the expressions in Exprs is type-dependent. | |
| static bool | isSameComparisonOperand (const Expr *E1, const Expr *E2) |
| Checks that the two Expr's will refer to the same value as a comparison operand. | |
| static bool | classof (const Stmt *T) |
| Static Public Member Functions inherited from clang::ValueStmt | |
| 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 Likelihood | getLikelihood (ArrayRef< const Attr * > Attrs) |
| static Likelihood | getLikelihood (const Stmt *S) |
| static const Attr * | getLikelihoodAttr (const Stmt *S) |
| static Likelihood | getLikelihood (const Stmt *Then, const Stmt *Else) |
| static std::tuple< bool, const Attr *, const Attr * > | determineLikelihoodConflict (const Stmt *Then, const Stmt *Else) |
Public Attributes | |
| friend | TrailingObjects |
Friends | |
| class | ASTStmtReader |
| class | ASTStmtWriter |
Detailed Description
An expression that sends a message to the given Objective-C object or class.
The following contains two message send expressions:
The innermost message send invokes the "alloc" class method on the NSString class, while the outermost message send invokes the "initWithString" instance method on the object returned from NSString's "alloc". In all, an Objective-C message send can take on four different (although related) forms:
- Send to an object instance.
- Send to a class.
- Send to the superclass instance of the current class.
- Send to the superclass of the current class.
All four kinds of message sends are modeled by the ObjCMessageExpr class, and can be distinguished via getReceiverKind(). Example:
The "void *" trailing objects are actually ONE void * (the receiver pointer), and NumArgs Expr *. But due to the implementation of children(), these must be together contiguously.
Definition at line 938 of file ExprObjC.h.
Member Typedef Documentation
◆ arg_iterator
Definition at line 1466 of file ExprObjC.h.
◆ const_arg_iterator
Definition at line 1467 of file ExprObjC.h.
Member Enumeration Documentation
◆ ReceiverKind
The kind of receiver this message is sending to.
| Enumerator | |
|---|---|
| Class | The receiver is a class. |
| Instance | The receiver is an object instance. |
| SuperClass | The receiver is a superclass. |
| SuperInstance | The receiver is the instance of the superclass object. |
Definition at line 943 of file ExprObjC.h.
Member Function Documentation
◆ arg_begin() [1/2]
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inline |
Definition at line 1477 of file ExprObjC.h.
References getArgs().
Referenced by arguments(), and arguments().
◆ arg_begin() [2/2]
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inline |
Definition at line 1483 of file ExprObjC.h.
References getArgs().
◆ arg_end() [1/2]
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inline |
Definition at line 1479 of file ExprObjC.h.
References getArgs().
Referenced by arguments(), and arguments().
◆ arg_end() [2/2]
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inline |
Definition at line 1487 of file ExprObjC.h.
References getArgs().
◆ arguments() [1/2]
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inline |
Definition at line 1469 of file ExprObjC.h.
References arg_begin(), and arg_end().
Referenced by clang::computeDependence(), and clang::CodeGen::CodeGenFunction::EmitObjCMessageExpr().
◆ arguments() [2/2]
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inline |
Definition at line 1473 of file ExprObjC.h.
References arg_begin(), and arg_end().
◆ children() [1/2]
| Stmt::child_range ObjCMessageExpr::children | ( | ) |
Definition at line 322 of file ExprObjC.cpp.
References getArgs(), getNumArgs(), getReceiverKind(), and Instance.
Referenced by children().
◆ children() [2/2]
| Stmt::const_child_range ObjCMessageExpr::children | ( | ) | const |
Definition at line 332 of file ExprObjC.cpp.
References Children, and children().
◆ classof()
Definition at line 1491 of file ExprObjC.h.
References clang::T.
◆ Create() [1/3]
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static |
Create an instance message send.
- Parameters
-
Context The ASTContext in which this expression will be created. T The result type of this message. VK The value kind of this message. A message returning a l-value or r-value reference will be an l-value or x-value, respectively. LBracLoc The location of the open square bracket '['. Receiver The expression used to produce the object that will receive this message. Sel The selector used to determine which method gets called. Method The Objective-C method against which this message send was type-checked. May be nullptr. Args The message send arguments. RBracLoc The location of the closing square bracket ']'.
Definition at line 210 of file ExprObjC.cpp.
References clang::Expr::Expr(), isImplicit(), clang::Method, and clang::T.
◆ Create() [2/3]
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static |
Create a message send to super.
- Parameters
-
Context The ASTContext in which this expression will be created. T The result type of this message. VK The value kind of this message. A message returning a l-value or r-value reference will be an l-value or x-value, respectively. LBracLoc The location of the open square bracket '['. SuperLoc The location of the "super" keyword. IsInstanceSuper Whether this is an instance "super" message (otherwise, it's a class "super" message). Sel The selector used to determine which method gets called. Method The Objective-C method against which this message send was type-checked. May be nullptr. Args The message send arguments. RBracLoc The location of the closing square bracket ']'.
Definition at line 171 of file ExprObjC.cpp.
References isImplicit(), clang::Method, and clang::T.
Referenced by clang::SemaObjC::BuildClassMessage(), and clang::SemaObjC::BuildInstanceMessage().
◆ Create() [3/3]
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static |
Create a class message send.
- Parameters
-
Context The ASTContext in which this expression will be created. T The result type of this message. VK The value kind of this message. A message returning a l-value or r-value reference will be an l-value or x-value, respectively. LBracLoc The location of the open square bracket '['. Receiver The type of the receiver, including source-location information. Sel The selector used to determine which method gets called. Method The Objective-C method against which this message send was type-checked. May be nullptr. Args The message send arguments. RBracLoc The location of the closing square bracket ']'.
Definition at line 191 of file ExprObjC.cpp.
References isImplicit(), clang::Method, and clang::T.
◆ CreateEmpty()
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static |
Create an empty Objective-C message expression, to be filled in by subsequent calls.
- Parameters
-
Context The context in which the message send will be created. NumArgs The number of message arguments, not including the receiver.
Definition at line 228 of file ExprObjC.cpp.
◆ getArg() [1/2]
getArg - Return the specified argument.
Definition at line 1403 of file ExprObjC.h.
References clang::Expr::Expr(), and getArgs().
Referenced by clang::SemaObjC::checkRetainCycles(), doRewriteToUTF8StringBoxedExpressionHelper(), clang::ento::ObjCMethodCall::getArgExpr(), clang::edit::rewriteObjCRedundantCallWithLiteral(), rewriteToArrayLiteral(), rewriteToArraySubscriptSet(), rewriteToDictionaryLiteral(), rewriteToDictionarySubscriptSet(), rewriteToNumberLiteral(), rewriteToNumericBoxedExpression(), rewriteToStringBoxedExpression(), rewriteToSubscriptGetCommon(), and shouldNotRewriteImmediateMessageArgs().
◆ getArg() [2/2]
Definition at line 1407 of file ExprObjC.h.
References clang::Expr::Expr(), and getArgs().
◆ getArgs() [1/2]
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inline |
Retrieve the arguments to this message, not including the receiver.
Definition at line 1394 of file ExprObjC.h.
References clang::Expr::Expr().
Referenced by arg_begin(), arg_begin(), arg_end(), arg_end(), children(), getArg(), getArg(), getSelectorLoc(), and setArg().
◆ getArgs() [2/2]
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inline |
Definition at line 1397 of file ExprObjC.h.
References clang::Expr::Expr().
◆ getBeginLoc()
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inline |
Definition at line 1458 of file ExprObjC.h.
Referenced by getSelectorStartLoc().
◆ getCallReturnType()
| QualType ObjCMessageExpr::getCallReturnType | ( | ASTContext & | Ctx | ) | const |
- Returns
- the return type of the message being sent. This is not always the type of the message expression itself because of references (the expression would not have a reference type). It is also not always the declared return type of the method because of instancetype (in that case it's an expression type).
Definition at line 261 of file ExprObjC.cpp.
References getMethodDecl(), clang::ASTContext::getObjCInstanceType(), clang::ASTContext::getReferenceQualifiedType(), and clang::Expr::getType().
Referenced by getUnusedResultAttr(), and clang::JSONNodeDumper::VisitObjCMessageExpr().
◆ getClassReceiver()
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inline |
Returns the type of a class message send, or NULL if the message is not a class message.
Definition at line 1287 of file ExprObjC.h.
References getClassReceiverTypeInfo().
Referenced by clang::CodeGen::CodeGenFunction::EmitObjCMessageExpr(), getReceiverType(), maybeAdjustInterfaceForSubscriptingCheck(), REGISTER_MAP_WITH_PROGRAMSTATE(), clang::JSONNodeDumper::VisitObjCMessageExpr(), and clang::TextNodeDumper::VisitObjCMessageExpr().
◆ getClassReceiverTypeInfo()
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inline |
Returns a type-source information of a class message send, or nullptr if the message is not a class message.
Definition at line 1296 of file ExprObjC.h.
References Class, and getReceiverKind().
Referenced by getClassReceiver(), and getReceiverRange().
◆ getEndLoc()
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inline |
Definition at line 1459 of file ExprObjC.h.
◆ getInstanceReceiver() [1/2]
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inline |
Returns the object expression (receiver) for an instance message, or null for a message that is not an instance message.
Definition at line 1268 of file ExprObjC.h.
References clang::Expr::Expr(), getReceiverKind(), and Instance.
Referenced by canRewriteToSubscriptSyntax(), checkForLiteralCreation(), clang::SemaObjC::checkRetainCycles(), clang::computeDependence(), clang::CodeGen::CodeGenFunction::EmitObjCMessageExpr(), getInstanceReceiver(), getReceiverRange(), getReceiverType(), clang::sema::FunctionScopeInfo::recordUseOfWeak(), REGISTER_MAP_WITH_PROGRAMSTATE(), rewriteToArraySubscriptSet(), rewriteToDictionarySubscriptSet(), rewriteToSubscriptGetCommon(), shouldExtendReceiverForInnerPointerMessage(), and tryEmitSpecializedAllocInit().
◆ getInstanceReceiver() [2/2]
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inline |
Definition at line 1274 of file ExprObjC.h.
References clang::Expr::Expr(), and getInstanceReceiver().
◆ getLeftLoc()
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inline |
Definition at line 1424 of file ExprObjC.h.
◆ getMethodDecl() [1/2]
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inline |
Definition at line 1371 of file ExprObjC.h.
◆ getMethodDecl() [2/2]
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inline |
Definition at line 1364 of file ExprObjC.h.
Referenced by checkForLiteralCreation(), clang::SemaObjC::checkRetainCycles(), clang::CodeGen::CodeGenFunction::EmitObjCMessageExpr(), clang::CodeGen::CodeGenFunction::EmitObjCMessageExprLValue(), clang::SemaObjC::EmitRelatedResultTypeNote(), findMethodDecl(), getCallReturnType(), clang::ento::ObjCMethodCall::getDecl(), getMethodFamily(), clang::ento::ObjCMethodCall::getRuntimeDefinition(), getUnusedResultAttr(), and clang::edit::rewriteToObjCSubscriptSyntax().
◆ getMethodFamily()
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inline |
Definition at line 1383 of file ExprObjC.h.
References getMethodDecl(), clang::ObjCMethodDecl::getMethodFamily(), clang::Selector::getMethodFamily(), and getSelector().
Referenced by clang::ento::ObjCMethodCall::getMethodFamily(), and clang::Expr::isUnusedResultAWarning().
◆ getNumArgs()
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inline |
Return the number of actual arguments in this message, not counting the receiver.
Definition at line 1390 of file ExprObjC.h.
Referenced by clang::SemaObjC::checkRetainCycles(), children(), clang::ento::ObjCMethodCall::getNumArgs(), getSelectorLoc(), clang::sema::FunctionScopeInfo::recordUseOfWeak(), clang::edit::rewriteObjCRedundantCallWithLiteral(), rewriteToArrayLiteral(), rewriteToArraySubscriptSet(), rewriteToDictionaryLiteral(), rewriteToDictionarySubscriptSet(), rewriteToNumberLiteral(), rewriteToNumericBoxedExpression(), clang::edit::rewriteToObjCSubscriptSyntax(), rewriteToStringBoxedExpression(), rewriteToSubscriptGetCommon(), and shouldNotRewriteImmediateMessageArgs().
◆ getNumSelectorLocs()
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inline |
Definition at line 1444 of file ExprObjC.h.
References clang::Selector::getNumArgs(), getSelector(), isImplicit(), and clang::Selector::isUnarySelector().
Referenced by getSelectorLoc(), and getSelectorLocs().
◆ getReceiverInterface()
| ObjCInterfaceDecl * ObjCMessageExpr::getReceiverInterface | ( | ) | const |
Retrieve the Objective-C interface to which this message is being directed, if known.
This routine cross-cuts all of the different kinds of message sends to determine what the underlying (statically known) type of the receiver will be; use getReceiverKind() to determine whether the message is a class or an instance method, whether it is a send to super or not, etc.
- Returns
- The Objective-C interface if known, otherwise nullptr.
Definition at line 310 of file ExprObjC.cpp.
References getReceiverType(), and clang::T.
Referenced by checkForLiteralCreation(), clang::ento::ObjCMethodCall::getReceiverInterface(), clang::ento::ObjCMethodCall::getRuntimeDefinition(), and clang::ObjCNoReturn::isImplicitNoReturn().
◆ getReceiverKind()
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inline |
Determine the kind of receiver that this message is being sent to.
Definition at line 1229 of file ExprObjC.h.
Referenced by checkForLiteralCreation(), clang::SemaObjC::checkRetainCycles(), children(), clang::CodeGen::CodeGenFunction::EmitObjCMessageExpr(), findMethodDecl(), getClassReceiverTypeInfo(), getInstanceReceiver(), getReceiverRange(), getReceiverType(), getSuperLoc(), getSuperType(), isClassMessage(), isInstanceMessage(), maybeAdjustInterfaceForSubscriptingCheck(), REGISTER_MAP_WITH_PROGRAMSTATE(), clang::edit::rewriteToObjCSubscriptSyntax(), shouldExtendReceiverForInnerPointerMessage(), tryEmitSpecializedAllocInit(), clang::JSONNodeDumper::VisitObjCMessageExpr(), and clang::TextNodeDumper::VisitObjCMessageExpr().
◆ getReceiverRange()
| SourceRange ObjCMessageExpr::getReceiverRange | ( | ) | const |
Source range of the receiver.
Definition at line 273 of file ExprObjC.cpp.
References Class, getClassReceiverTypeInfo(), getInstanceReceiver(), getReceiverKind(), clang::Stmt::getSourceRange(), clang::TypeLoc::getSourceRange(), getSuperLoc(), clang::TypeSourceInfo::getTypeLoc(), Instance, SuperClass, and SuperInstance.
◆ getReceiverType()
| QualType ObjCMessageExpr::getReceiverType | ( | ) | const |
Retrieve the receiver type to which this message is being directed.
This routine cross-cuts all of the different kinds of message sends to determine what the underlying (statically known) type of the receiver will be; use getReceiverKind() to determine whether the message is a class or an instance method, whether it is a send to super or not, etc.
- Returns
- The type of the receiver.
Definition at line 296 of file ExprObjC.cpp.
References Class, getClassReceiver(), getInstanceReceiver(), getReceiverKind(), getSuperType(), clang::Expr::getType(), Instance, SuperClass, and SuperInstance.
Referenced by findMethodDecl(), and getReceiverInterface().
◆ getRightLoc()
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inline |
Definition at line 1425 of file ExprObjC.h.
◆ getSelector()
| Selector ObjCMessageExpr::getSelector | ( | ) | const |
Definition at line 289 of file ExprObjC.cpp.
References getSelector().
Referenced by applyCocoaAPICheck(), clang::SemaObjC::checkRetainCycles(), clang::CodeGen::CodeGenFunction::EmitObjCMessageExpr(), findMethodDecl(), getMethodFamily(), getNumSelectorLocs(), clang::ento::ObjCMethodCall::getRuntimeDefinition(), clang::ento::ObjCMethodCall::getSelector(), getSelector(), getSelectorLoc(), clang::ObjCNoReturn::isImplicitNoReturn(), clang::edit::rewriteObjCRedundantCallWithLiteral(), rewriteToArrayLiteral(), rewriteToBoolLiteral(), rewriteToCharLiteral(), rewriteToDictionaryLiteral(), rewriteToNumberLiteral(), rewriteToNumericBoxedExpression(), clang::edit::rewriteToObjCSubscriptSyntax(), rewriteToStringBoxedExpression(), shouldNotRewriteImmediateMessageArgs(), tryEmitSpecializedAllocInit(), clang::JSONNodeDumper::VisitObjCMessageExpr(), and clang::TextNodeDumper::VisitObjCMessageExpr().
◆ getSelectorLoc()
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inline |
Definition at line 1433 of file ExprObjC.h.
References clang::Expr::Expr(), getArgs(), getNumArgs(), getNumSelectorLocs(), getSelector(), clang::getStandardSelectorLoc(), and clang::SelLoc_StandardWithSpace.
Referenced by getSelectorLocs(), and getSelectorStartLoc().
◆ getSelectorLocs()
| void ObjCMessageExpr::getSelectorLocs | ( | SmallVectorImpl< SourceLocation > & | SelLocs | ) | const |
Definition at line 254 of file ExprObjC.cpp.
References getNumSelectorLocs(), and getSelectorLoc().
◆ getSelectorStartLoc()
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inline |
Definition at line 1427 of file ExprObjC.h.
References getBeginLoc(), getSelectorLoc(), and isImplicit().
◆ getSuperLoc()
|
inline |
Retrieve the location of the 'super' keyword for a class or instance message to 'super', otherwise an invalid source location.
Definition at line 1309 of file ExprObjC.h.
References getReceiverKind(), SuperClass, and SuperInstance.
Referenced by clang::SemaObjC::checkRetainCycles(), and getReceiverRange().
◆ getSuperType()
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inline |
Retrieve the type referred to by 'super'.
The returned type will either be an ObjCInterfaceType (for an class message to super) or an ObjCObjectPointerType that refers to a class (for an instance message to super);
Definition at line 1344 of file ExprObjC.h.
References clang::QualType::getFromOpaquePtr(), getReceiverKind(), SuperClass, and SuperInstance.
Referenced by clang::CodeGen::CodeGenFunction::EmitObjCMessageExpr(), getReceiverType(), clang::ento::ObjCMethodCall::getRuntimeDefinition(), maybeAdjustInterfaceForSubscriptingCheck(), REGISTER_MAP_WITH_PROGRAMSTATE(), and clang::JSONNodeDumper::VisitObjCMessageExpr().
◆ getUnusedResultAttr()
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inline |
Returns the WarnUnusedResultAttr that is declared on the callee or its return type declaration, together with a NamedDecl that refers to the declaration the attribute is attached to.
Definition at line 1242 of file ExprObjC.h.
References getCallReturnType(), getMethodDecl(), and clang::Expr::getUnusedResultAttrImpl().
Referenced by hasUnusedResultAttr().
◆ hasUnusedResultAttr()
|
inline |
Returns true if this message send should warn on unused results.
Definition at line 1247 of file ExprObjC.h.
References getUnusedResultAttr().
Referenced by clang::Expr::isUnusedResultAWarning().
◆ isClassMessage()
|
inline |
Determine whether this is an class message to either a specified class or to super.
Definition at line 1262 of file ExprObjC.h.
References Class, getReceiverKind(), and SuperClass.
◆ isDelegateInitCall()
|
inline |
isDelegateInitCall - Answers whether this message send has been tagged as a "delegate init call", i.e.
a call to a method in the -init family on self from within an -init method implementation.
Definition at line 1421 of file ExprObjC.h.
Referenced by clang::CodeGen::CodeGenFunction::EmitObjCMessageExpr().
◆ isImplicit()
|
inline |
Indicates whether the message send was implicitly generated by the implementation.
If false, it was written explicitly in the source code.
Definition at line 1225 of file ExprObjC.h.
Referenced by checkForLiteralCreation(), Create(), Create(), Create(), getNumSelectorLocs(), getSelectorStartLoc(), and clang::edit::rewriteToObjCSubscriptSyntax().
◆ isInstanceMessage()
|
inline |
Determine whether this is an instance message to either a computed object or to super.
Definition at line 1256 of file ExprObjC.h.
References getReceiverKind(), Instance, and SuperInstance.
Referenced by clang::SemaObjC::checkRetainCycles(), clang::ento::ObjCMethodCall::getRuntimeDefinition(), clang::ObjCNoReturn::isImplicitNoReturn(), clang::ento::ObjCMethodCall::isInstanceMessage(), and clang::Expr::isUnusedResultAWarning().
◆ setArg()
setArg - Set the specified argument.
Definition at line 1413 of file ExprObjC.h.
References clang::Expr::Expr(), and getArgs().
◆ setClassReceiver()
|
inline |
Definition at line 1302 of file ExprObjC.h.
References Class.
◆ setDelegateInitCall()
|
inline |
Definition at line 1422 of file ExprObjC.h.
◆ setInstanceReceiver()
|
inline |
Turn this message send into an instance message that computes the receiver object with the given expression.
Definition at line 1280 of file ExprObjC.h.
References clang::Expr::Expr(), and Instance.
◆ setMethodDecl()
|
inline |
Definition at line 1378 of file ExprObjC.h.
◆ setSelector()
|
inline |
Definition at line 1359 of file ExprObjC.h.
References clang::Selector::getAsOpaquePtr().
◆ setSourceRange()
|
inline |
Definition at line 1453 of file ExprObjC.h.
References clang::SourceRange::getBegin(), and clang::SourceRange::getEnd().
◆ setSuper()
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inline |
Definition at line 1351 of file ExprObjC.h.
References SuperClass, SuperInstance, and clang::T.
Friends And Related Symbol Documentation
◆ ASTStmtReader
|
friend |
◆ ASTStmtWriter
|
friend |
Member Data Documentation
◆ TrailingObjects
| friend clang::ObjCMessageExpr::TrailingObjects |
Definition at line 1103 of file ExprObjC.h.
The documentation for this class was generated from the following files:
- include/clang/AST/ExprObjC.h
- lib/AST/ExprObjC.cpp
Generated on for clang by
1.14.0