#include "ByteCode/Context.h"#include "ByteCode/Frame.h"#include "ByteCode/State.h"#include "ExprConstShared.h"#include "clang/AST/APValue.h"#include "clang/AST/ASTContext.h"#include "clang/AST/ASTLambda.h"#include "clang/AST/Attr.h"#include "clang/AST/CXXInheritance.h"#include "clang/AST/CharUnits.h"#include "clang/AST/CurrentSourceLocExprScope.h"#include "clang/AST/Expr.h"#include "clang/AST/OSLog.h"#include "clang/AST/OptionalDiagnostic.h"#include "clang/AST/RecordLayout.h"#include "clang/AST/StmtVisitor.h"#include "clang/AST/Type.h"#include "clang/AST/TypeLoc.h"#include "clang/Basic/Builtins.h"#include "clang/Basic/DiagnosticSema.h"#include "clang/Basic/TargetBuiltins.h"#include "clang/Basic/TargetInfo.h"#include "llvm/ADT/APFixedPoint.h"#include "llvm/ADT/Sequence.h"#include "llvm/ADT/SmallBitVector.h"#include "llvm/ADT/StringExtras.h"#include "llvm/Support/Casting.h"#include "llvm/Support/Debug.h"#include "llvm/Support/SaveAndRestore.h"#include "llvm/Support/SipHash.h"#include "llvm/Support/TimeProfiler.h"#include "llvm/Support/raw_ostream.h"#include <cstring>#include <functional>#include <limits>#include <optional>#include "clang/AST/TypeNodes.inc"#include "clang/AST/BuiltinTypes.def"#include "clang/Basic/OpenCLImageTypes.def"#include "clang/Basic/OpenCLExtensionTypes.def"#include "clang/Basic/AArch64ACLETypes.def"#include "clang/Basic/PPCTypes.def"#include "clang/Basic/RISCVVTypes.def"#include "clang/Basic/WebAssemblyReferenceTypes.def"#include "clang/Basic/AMDGPUTypes.def"#include "clang/Basic/HLSLIntangibleTypes.def"#include "clang/AST/StmtNodes.inc"Go to the source code of this file.
Classes | |
| struct | llvm::DenseMapInfo< ObjectUnderConstruction > |
| struct | LValueBaseString |
| struct | DynamicType |
Namespaces | |
| namespace | llvm |
| Diagnostic wrappers for TextAPI types for error reporting. | |
Macros | |
| #define | DEBUG_TYPE "exprconstant" |
| #define | TYPE(Class, Base) |
| #define | ABSTRACT_TYPE(Class, Base) |
| #define | NON_CANONICAL_TYPE(Class, Base) |
| #define | DEPENDENT_TYPE(Class, Base) |
| #define | NON_CANONICAL_UNLESS_DEPENDENT(Class, Base) |
| #define | TYPE(ID, BASE) |
| #define | DEPENDENT_TYPE(ID, BASE) |
| #define | NON_CANONICAL_TYPE(ID, BASE) |
| #define | NON_CANONICAL_UNLESS_DEPENDENT_TYPE(ID, BASE) |
| #define | BUILTIN_TYPE(ID, SINGLETON_ID) |
| #define | SIGNED_TYPE(ID, SINGLETON_ID) |
| #define | FLOATING_TYPE(ID, SINGLETON_ID) |
| #define | PLACEHOLDER_TYPE(ID, SINGLETON_ID) |
| #define | IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) |
| #define | EXT_OPAQUE_TYPE(ExtType, Id, Ext) |
| #define | SVE_TYPE(Name, Id, SingletonId) |
| #define | PPC_VECTOR_TYPE(Name, Id, Size) |
| #define | RVV_TYPE(Name, Id, SingletonId) |
| #define | WASM_TYPE(Name, Id, SingletonId) |
| #define | AMDGPU_TYPE(Name, Id, SingletonId, Width, Align) |
| #define | HLSL_INTANGIBLE_TYPE(Name, Id, SingletonId) |
| #define | ABSTRACT_STMT(Node) |
| #define | STMT(Node, Base) |
| #define | EXPR(Node, Base) |
Typedefs | |
| using | CheckedTemporaries |
| Materialized temporaries that we've already checked to determine if they're initializsed by a constant expression. | |
Enumerations | |
| enum class | CheckEvaluationResultKind { ConstantExpression , FullyInitialized } |
| enum class | SizeOfType { SizeOf , DataSizeOf } |
Functions | |
| static bool | HandleDestruction (EvalInfo &Info, const Expr *E, const LValue &This, QualType ThisType) |
| Perform a destructor or pseudo-destructor call on the given object, which might in general not be a complete object. | |
| static bool | HandleDestruction (EvalInfo &Info, SourceLocation Loc, APValue::LValueBase LVBase, APValue &Value, QualType T) |
| Destroy and end the lifetime of the given complete object. | |
| static bool | isRead (AccessKinds AK) |
| static bool | isModification (AccessKinds AK) |
| static bool | isAnyAccess (AccessKinds AK) |
| static bool | isFormalAccess (AccessKinds AK) |
| Is this an access per the C++ definition? | |
| static bool | isValidIndeterminateAccess (AccessKinds AK) |
| Is this kind of access valid on an indeterminate object value? | |
| static bool | Evaluate (APValue &Result, EvalInfo &Info, const Expr *E) |
| static bool | EvaluateInPlace (APValue &Result, EvalInfo &Info, const LValue &This, const Expr *E, bool AllowNonLiteralTypes) |
| EvaluateInPlace - Evaluate an expression in-place in an APValue. In some cases, the in-place evaluation is essential, since later initializers for an object can indirectly refer to subobjects which were initialized earlier. | |
| static bool | EvaluateLValue (const Expr *E, LValue &Result, EvalInfo &Info, bool InvalidBaseOK) |
| Evaluate an expression as an lvalue. This can be legitimately called on expressions which are not glvalues, in three cases: | |
| static bool | EvaluatePointer (const Expr *E, LValue &Result, EvalInfo &Info, bool InvalidBaseOK=false) |
| static bool | EvaluateMemberPointer (const Expr *E, MemberPtr &Result, EvalInfo &Info) |
| static bool | EvaluateTemporary (const Expr *E, LValue &Result, EvalInfo &Info) |
| Evaluate an expression of record type as a temporary. | |
| static bool | EvaluateInteger (const Expr *E, APSInt &Result, EvalInfo &Info) |
| static bool | EvaluateIntegerOrLValue (const Expr *E, APValue &Result, EvalInfo &Info) |
| EvaluateIntegerOrLValue - Evaluate an rvalue integral-typed expression, and produce either the integer value or a pointer. | |
| static bool | EvaluateFloat (const Expr *E, APFloat &Result, EvalInfo &Info) |
| static bool | EvaluateComplex (const Expr *E, ComplexValue &Res, EvalInfo &Info) |
| static bool | EvaluateAtomic (const Expr *E, const LValue *This, APValue &Result, EvalInfo &Info) |
| static bool | EvaluateAsRValue (EvalInfo &Info, const Expr *E, APValue &Result) |
| EvaluateAsRValue - Try to evaluate this expression, performing an implicit lvalue-to-rvalue cast if it is an lvalue. | |
| static bool | EvaluateBuiltinStrLen (const Expr *E, uint64_t &Result, EvalInfo &Info, std::string *StringResult=nullptr) |
| static bool | EvaluateFixedPointOrInteger (const Expr *E, APFixedPoint &Result, EvalInfo &Info) |
| Evaluate an integer or fixed point expression into an APResult. | |
| static bool | EvaluateFixedPoint (const Expr *E, APFixedPoint &Result, EvalInfo &Info) |
| Evaluate only a fixed point expression into an APResult. | |
| static void | negateAsSigned (APSInt &Int) |
| Negate an APSInt in place, converting it to a signed form if necessary, and preserving its value (by extending by up to one bit as needed). | |
| static bool | EvaluateIgnoredValue (EvalInfo &Info, const Expr *E) |
| Evaluate an expression to see if it had side-effects, and discard its result. | |
| static bool | IsOpaqueConstantCall (const CallExpr *E) |
| Should this call expression be treated as forming an opaque constant? | |
| static bool | IsOpaqueConstantCall (const LValue &LVal) |
| static bool | IsGlobalLValue (APValue::LValueBase B) |
| static const ValueDecl * | GetLValueBaseDecl (const LValue &LVal) |
| static bool | GetLValueBaseAsString (const EvalInfo &Info, const LValue &LVal, LValueBaseString &AsString) |
| static bool | ArePotentiallyOverlappingStringLiterals (const EvalInfo &Info, const LValue &LHS, const LValue &RHS) |
| static bool | IsWeakLValue (const LValue &Value) |
| static bool | isZeroSized (const LValue &Value) |
| static bool | HasSameBase (const LValue &A, const LValue &B) |
| static void | NoteLValueLocation (EvalInfo &Info, APValue::LValueBase Base) |
| static bool | CheckEvaluationResult (CheckEvaluationResultKind CERK, EvalInfo &Info, SourceLocation DiagLoc, QualType Type, const APValue &Value, ConstantExprKind Kind, const FieldDecl *SubobjectDecl, CheckedTemporaries &CheckedTemps) |
| static bool | CheckLValueConstantExpression (EvalInfo &Info, SourceLocation Loc, QualType Type, const LValue &LVal, ConstantExprKind Kind, CheckedTemporaries &CheckedTemps) |
| Check that this reference or pointer core constant expression is a valid value for an address or reference constant expression. | |
| static bool | CheckMemberPointerConstantExpression (EvalInfo &Info, SourceLocation Loc, QualType Type, const APValue &Value, ConstantExprKind Kind) |
| Member pointers are constant expressions unless they point to a non-virtual dllimport member function. | |
| static bool | CheckLiteralType (EvalInfo &Info, const Expr *E, const LValue *This=nullptr) |
| Check that this core constant expression is of literal type, and if not, produce an appropriate diagnostic. | |
| static bool | CheckConstantExpression (EvalInfo &Info, SourceLocation DiagLoc, QualType Type, const APValue &Value, ConstantExprKind Kind) |
| Check that this core constant expression value is a valid value for a constant expression. | |
| static bool | CheckFullyInitialized (EvalInfo &Info, SourceLocation DiagLoc, QualType Type, const APValue &Value) |
| Check that this evaluated value is fully-initialized and can be loaded by an lvalue-to-rvalue conversion. | |
| static bool | CheckMemoryLeaks (EvalInfo &Info) |
| Enforce C++2a [expr.const]/4.17, which disallows new-expressions unless "the allocated storage is deallocated within the evaluation". | |
| static bool | EvalPointerValueAsBool (const APValue &Value, bool &Result) |
| static bool | HandleConversionToBool (const APValue &Val, bool &Result) |
| static bool | EvaluateAsBooleanCondition (const Expr *E, bool &Result, EvalInfo &Info) |
| template<typename T> | |
| static bool | HandleOverflow (EvalInfo &Info, const Expr *E, const T &SrcValue, QualType DestType) |
| static bool | HandleFloatToIntCast (EvalInfo &Info, const Expr *E, QualType SrcType, const APFloat &Value, QualType DestType, APSInt &Result) |
| static llvm::RoundingMode | getActiveRoundingMode (EvalInfo &Info, const Expr *E) |
| Get rounding mode to use in evaluation of the specified expression. | |
| static bool | checkFloatingPointResult (EvalInfo &Info, const Expr *E, APFloat::opStatus St) |
| Check if the given evaluation result is allowed for constant evaluation. | |
| static bool | HandleFloatToFloatCast (EvalInfo &Info, const Expr *E, QualType SrcType, QualType DestType, APFloat &Result) |
| static APSInt | HandleIntToIntCast (EvalInfo &Info, const Expr *E, QualType DestType, QualType SrcType, const APSInt &Value) |
| static bool | HandleIntToFloatCast (EvalInfo &Info, const Expr *E, const FPOptions FPO, QualType SrcType, const APSInt &Value, QualType DestType, APFloat &Result) |
| static bool | truncateBitfieldValue (EvalInfo &Info, const Expr *E, APValue &Value, const FieldDecl *FD) |
| template<typename Operation> | |
| static bool | CheckedIntArithmetic (EvalInfo &Info, const Expr *E, const APSInt &LHS, const APSInt &RHS, unsigned BitWidth, Operation Op, APSInt &Result) |
| Perform the given integer operation, which is known to need at most BitWidth bits, and check for overflow in the original type (if that type was not an unsigned type). | |
| static bool | handleIntIntBinOp (EvalInfo &Info, const BinaryOperator *E, const APSInt &LHS, BinaryOperatorKind Opcode, APSInt RHS, APSInt &Result) |
| Perform the given binary integer operation. | |
| static bool | handleFloatFloatBinOp (EvalInfo &Info, const BinaryOperator *E, APFloat &LHS, BinaryOperatorKind Opcode, const APFloat &RHS) |
| Perform the given binary floating-point operation, in-place, on LHS. | |
| static bool | handleLogicalOpForVector (const APInt &LHSValue, BinaryOperatorKind Opcode, const APInt &RHSValue, APInt &Result) |
| static bool | handleLogicalOpForVector (const APFloat &LHSValue, BinaryOperatorKind Opcode, const APFloat &RHSValue, APInt &Result) |
| static bool | handleLogicalOpForVector (const APValue &LHSValue, BinaryOperatorKind Opcode, const APValue &RHSValue, APInt &Result) |
| template<typename APTy> | |
| static bool | handleCompareOpForVectorHelper (const APTy &LHSValue, BinaryOperatorKind Opcode, const APTy &RHSValue, APInt &Result) |
| static bool | handleCompareOpForVector (const APValue &LHSValue, BinaryOperatorKind Opcode, const APValue &RHSValue, APInt &Result) |
| static bool | handleVectorVectorBinOp (EvalInfo &Info, const BinaryOperator *E, BinaryOperatorKind Opcode, APValue &LHSValue, const APValue &RHSValue) |
| static bool | CastToDerivedClass (EvalInfo &Info, const Expr *E, LValue &Result, const RecordDecl *TruncatedType, unsigned TruncatedElements) |
| Cast an lvalue referring to a base subobject to a derived class, by truncating the lvalue's path to the given length. | |
| static bool | HandleLValueDirectBase (EvalInfo &Info, const Expr *E, LValue &Obj, const CXXRecordDecl *Derived, const CXXRecordDecl *Base, const ASTRecordLayout *RL=nullptr) |
| static bool | HandleLValueBase (EvalInfo &Info, const Expr *E, LValue &Obj, const CXXRecordDecl *DerivedDecl, const CXXBaseSpecifier *Base) |
| static bool | HandleLValueBasePath (EvalInfo &Info, const CastExpr *E, QualType Type, LValue &Result) |
| static bool | CastToBaseClass (EvalInfo &Info, const Expr *E, LValue &Result, const CXXRecordDecl *DerivedRD, const CXXRecordDecl *BaseRD) |
| Cast an lvalue referring to a derived class to a known base subobject. | |
| static bool | HandleLValueMember (EvalInfo &Info, const Expr *E, LValue &LVal, const FieldDecl *FD, const ASTRecordLayout *RL=nullptr) |
| Update LVal to refer to the given field, which must be a member of the type currently described by LVal. | |
| static bool | HandleLValueIndirectMember (EvalInfo &Info, const Expr *E, LValue &LVal, const IndirectFieldDecl *IFD) |
| Update LVal to refer to the given indirect field. | |
| static bool | HandleSizeof (EvalInfo &Info, SourceLocation Loc, QualType Type, CharUnits &Size, SizeOfType SOT=SizeOfType::SizeOf) |
| Get the size of the given type in char units. | |
| static bool | HandleLValueArrayAdjustment (EvalInfo &Info, const Expr *E, LValue &LVal, QualType EltTy, APSInt Adjustment) |
| Update a pointer value to model pointer arithmetic. | |
| static bool | HandleLValueArrayAdjustment (EvalInfo &Info, const Expr *E, LValue &LVal, QualType EltTy, int64_t Adjustment) |
| static bool | HandleLValueComplexElement (EvalInfo &Info, const Expr *E, LValue &LVal, QualType EltTy, bool Imag) |
| Update an lvalue to refer to a component of a complex number. | |
| static bool | HandleLValueVectorElement (EvalInfo &Info, const Expr *E, LValue &LVal, QualType EltTy, uint64_t Size, uint64_t Idx) |
| static bool | evaluateVarDeclInit (EvalInfo &Info, const Expr *E, const VarDecl *VD, CallStackFrame *Frame, unsigned Version, APValue *&Result) |
| Try to evaluate the initializer for a variable declaration. | |
| static unsigned | getBaseIndex (const CXXRecordDecl *Derived, const CXXRecordDecl *Base) |
| Get the base index of the given base class within an APValue representing the given derived class. | |
| static APSInt | extractStringLiteralCharacter (EvalInfo &Info, const Expr *Lit, uint64_t Index) |
| Extract the value of a character from a string literal. | |
| static void | expandStringLiteral (EvalInfo &Info, const StringLiteral *S, APValue &Result, QualType AllocType=QualType()) |
| static void | expandArray (APValue &Array, unsigned Index) |
| static bool | isReadByLvalueToRvalueConversion (const CXXRecordDecl *RD) |
| Determine whether a type would actually be read by an lvalue-to-rvalue conversion. | |
| static bool | isReadByLvalueToRvalueConversion (QualType T) |
| static bool | diagnoseMutableFields (EvalInfo &Info, const Expr *E, AccessKinds AK, QualType T) |
| Diagnose an attempt to read from any unreadable field within the specified type, which might be a class type. | |
| static bool | lifetimeStartedInEvaluation (EvalInfo &Info, APValue::LValueBase Base, bool MutableSubobject=false) |
| static bool | CheckArraySize (EvalInfo &Info, const ConstantArrayType *CAT, SourceLocation CallLoc={}) |
| static QualType | getSubobjectType (QualType ObjType, QualType SubobjType, bool IsMutable=false) |
| template<typename SubobjectHandler> | |
| static SubobjectHandler::result_type | findSubobject (EvalInfo &Info, const Expr *E, const CompleteObject &Obj, const SubobjectDesignator &Sub, SubobjectHandler &handler) |
| Find the designated sub-object of an rvalue. | |
| static bool | extractSubobject (EvalInfo &Info, const Expr *E, const CompleteObject &Obj, const SubobjectDesignator &Sub, APValue &Result, AccessKinds AK=AK_Read) |
| Extract the designated sub-object of an rvalue. | |
| static bool | modifySubobject (EvalInfo &Info, const Expr *E, const CompleteObject &Obj, const SubobjectDesignator &Sub, APValue &NewVal) |
| Update the designated sub-object of an rvalue to the given value. | |
| static unsigned | FindDesignatorMismatch (QualType ObjType, const SubobjectDesignator &A, const SubobjectDesignator &B, bool &WasArrayIndex) |
| Find the position where two subobject designators diverge, or equivalently the length of the common initial subsequence. | |
| static bool | AreElementsOfSameArray (QualType ObjType, const SubobjectDesignator &A, const SubobjectDesignator &B) |
| Determine whether the given subobject designators refer to elements of the same array object. | |
| static CompleteObject | findCompleteObject (EvalInfo &Info, const Expr *E, AccessKinds AK, const LValue &LVal, QualType LValType) |
| Find the complete object to which an LValue refers. | |
| static bool | handleLValueToRValueConversion (EvalInfo &Info, const Expr *Conv, QualType Type, const LValue &LVal, APValue &RVal, bool WantObjectRepresentation=false) |
| Perform an lvalue-to-rvalue conversion on the given glvalue. | |
| static bool | handleAssignment (EvalInfo &Info, const Expr *E, const LValue &LVal, QualType LValType, APValue &Val) |
| Perform an assignment of Val to LVal. Takes ownership of Val. | |
| static bool | handleCompoundAssignment (EvalInfo &Info, const CompoundAssignOperator *E, const LValue &LVal, QualType LValType, QualType PromotedLValType, BinaryOperatorKind Opcode, const APValue &RVal) |
| Perform a compound assignment of LVal <op>= RVal. | |
| static bool | handleIncDec (EvalInfo &Info, const Expr *E, const LValue &LVal, QualType LValType, bool IsIncrement, APValue *Old) |
| Perform an increment or decrement on LVal. | |
| static bool | EvaluateObjectArgument (EvalInfo &Info, const Expr *Object, LValue &This) |
| Build an lvalue for the object argument of a member function call. | |
| static const ValueDecl * | HandleMemberPointerAccess (EvalInfo &Info, QualType LVType, LValue &LV, const Expr *RHS, bool IncludeMember=true) |
| HandleMemberPointerAccess - Evaluate a member access operation and build an lvalue referring to the result. | |
| static const ValueDecl * | HandleMemberPointerAccess (EvalInfo &Info, const BinaryOperator *BO, LValue &LV, bool IncludeMember=true) |
| static bool | HandleBaseToDerivedCast (EvalInfo &Info, const CastExpr *E, LValue &Result) |
| HandleBaseToDerivedCast - Apply the given base-to-derived cast operation on the provided lvalue, which currently refers to the base object. | |
| static bool | handleDefaultInitValue (QualType T, APValue &Result) |
| Get the value to use for a default-initialized object of type T. | |
| static bool | EvaluateInitForDeclOfReferenceType (EvalInfo &Info, const ValueDecl *D, const Expr *Init, LValue &Result, APValue &Val) |
| Evaluates the initializer of a reference. | |
| static bool | EvaluateVarDecl (EvalInfo &Info, const VarDecl *VD) |
| static bool | EvaluateDecompositionDeclInit (EvalInfo &Info, const DecompositionDecl *DD) |
| static bool | EvaluateDecl (EvalInfo &Info, const Decl *D, bool EvaluateConditionDecl=false) |
| static bool | MaybeEvaluateDeferredVarDeclInit (EvalInfo &Info, const VarDecl *VD) |
| static bool | EvaluateDependentExpr (const Expr *E, EvalInfo &Info) |
| static bool | EvaluateCond (EvalInfo &Info, const VarDecl *CondDecl, const Expr *Cond, bool &Result) |
| Evaluate a condition (either a variable declaration or an expression). | |
| static EvalStmtResult | EvaluateStmt (StmtResult &Result, EvalInfo &Info, const Stmt *S, const SwitchCase *SC=nullptr) |
| static bool | ShouldPropagateBreakContinue (EvalInfo &Info, const Stmt *LoopOrSwitch, ArrayRef< BlockScopeRAII * > Scopes, EvalStmtResult &ESR) |
| Helper to implement named break/continue. | |
| static EvalStmtResult | EvaluateLoopBody (StmtResult &Result, EvalInfo &Info, const Stmt *Body, const SwitchCase *Case=nullptr) |
| Evaluate the body of a loop, and translate the result as appropriate. | |
| static EvalStmtResult | EvaluateSwitch (StmtResult &Result, EvalInfo &Info, const SwitchStmt *SS) |
| Evaluate a switch statement. | |
| static bool | CheckLocalVariableDeclaration (EvalInfo &Info, const VarDecl *VD) |
| static bool | CheckTrivialDefaultConstructor (EvalInfo &Info, SourceLocation Loc, const CXXConstructorDecl *CD, bool IsValueInitialization) |
| CheckTrivialDefaultConstructor - Check whether a constructor is a trivial default constructor. | |
| static bool | CheckConstexprFunction (EvalInfo &Info, SourceLocation CallLoc, const FunctionDecl *Declaration, const FunctionDecl *Definition, const Stmt *Body) |
| CheckConstexprFunction - Check that a function can be called in a constant expression. | |
| static bool | checkDynamicType (EvalInfo &Info, const Expr *E, const LValue &This, AccessKinds AK, bool Polymorphic) |
| Check that we can access the notional vptr of an object / determine its dynamic type. | |
| static bool | checkNonVirtualMemberCallThisPointer (EvalInfo &Info, const Expr *E, const LValue &This, const CXXMethodDecl *NamedMember) |
| Check that the pointee of the 'this' pointer in a member function call is either within its lifetime or in its period of construction or destruction. | |
| static const CXXRecordDecl * | getBaseClassType (SubobjectDesignator &Designator, unsigned PathLength) |
| static std::optional< DynamicType > | ComputeDynamicType (EvalInfo &Info, const Expr *E, LValue &This, AccessKinds AK) |
| Determine the dynamic type of an object. | |
| static const CXXMethodDecl * | HandleVirtualDispatch (EvalInfo &Info, const Expr *E, LValue &This, const CXXMethodDecl *Found, llvm::SmallVectorImpl< QualType > &CovariantAdjustmentPath) |
| Perform virtual dispatch. | |
| static bool | HandleCovariantReturnAdjustment (EvalInfo &Info, const Expr *E, APValue &Result, ArrayRef< QualType > Path) |
| Perform the adjustment from a value returned by a virtual function to a value of the statically expected type, which may be a pointer or reference to a base class of the returned type. | |
| static bool | isBaseClassPublic (const CXXRecordDecl *Derived, const CXXRecordDecl *Base) |
Determine whether Base, which is known to be a direct base class of Derived, is a public base class. | |
| static bool | HandleDynamicCast (EvalInfo &Info, const ExplicitCastExpr *E, LValue &Ptr) |
| Apply the given dynamic cast operation on the provided lvalue. | |
| static bool | MaybeHandleUnionActiveMemberChange (EvalInfo &Info, const Expr *LHSExpr, const LValue &LHS) |
| Handle a builtin simple-assignment or a call to a trivial assignment operator whose left-hand side might involve a union member access. | |
| static bool | EvaluateCallArg (const ParmVarDecl *PVD, const Expr *Arg, CallRef Call, EvalInfo &Info, bool NonNull=false, APValue **EvaluatedArg=nullptr) |
| static bool | EvaluateArgs (ArrayRef< const Expr * > Args, CallRef Call, EvalInfo &Info, const FunctionDecl *Callee, bool RightToLeft=false, LValue *ObjectArg=nullptr) |
| Evaluate the arguments to a function call. | |
| static bool | handleTrivialCopy (EvalInfo &Info, const ParmVarDecl *Param, const Expr *E, APValue &Result, bool CopyObjectRepresentation) |
| Perform a trivial copy from Param, which is the parameter of a copy or move constructor or assignment operator. | |
| static bool | HandleFunctionCall (SourceLocation CallLoc, const FunctionDecl *Callee, const LValue *ObjectArg, const Expr *E, ArrayRef< const Expr * > Args, CallRef Call, const Stmt *Body, EvalInfo &Info, APValue &Result, const LValue *ResultSlot) |
| Evaluate a function call. | |
| static bool | HandleConstructorCall (const Expr *E, const LValue &This, CallRef Call, const CXXConstructorDecl *Definition, EvalInfo &Info, APValue &Result) |
| Evaluate a constructor call. | |
| static bool | HandleConstructorCall (const Expr *E, const LValue &This, ArrayRef< const Expr * > Args, const CXXConstructorDecl *Definition, EvalInfo &Info, APValue &Result) |
| static bool | HandleDestructionImpl (EvalInfo &Info, SourceRange CallRange, const LValue &This, APValue &Value, QualType T) |
| static bool | HandleOperatorNewCall (EvalInfo &Info, const CallExpr *E, LValue &Result) |
| Perform a call to 'operator new' or to ‘__builtin_operator_new’. | |
| static bool | hasVirtualDestructor (QualType T) |
| static const FunctionDecl * | getVirtualOperatorDelete (QualType T) |
| static std::optional< DynAlloc * > | CheckDeleteKind (EvalInfo &Info, const Expr *E, const LValue &Pointer, DynAlloc::Kind DeallocKind) |
| Check that the given object is a suitable pointer to a heap allocation that still exists and is of the right kind for the purpose of a deletion. | |
| static bool | HandleOperatorDeleteCall (EvalInfo &Info, const CallExpr *E) |
| static bool | HandleLambdaCapture (EvalInfo &Info, const Expr *E, LValue &Result, const CXXMethodDecl *MD, const FieldDecl *FD, bool LValueToRValueConversion) |
| Get an lvalue to a field of a lambda's closure type. | |
| static bool | getBytesReturnedByAllocSizeCall (const ASTContext &Ctx, const LValue &LVal, llvm::APInt &Result) |
| Convenience function. LVal's base must be a call to an alloc_size function. | |
| static bool | evaluateLValueAsAllocSize (EvalInfo &Info, APValue::LValueBase Base, LValue &Result) |
| Attempts to evaluate the given LValueBase as the result of a call to a function with the alloc_size attribute. If it was possible to do so, this function will return true, make Result's Base point to said function call, and mark Result's Base as invalid. | |
| static bool | IsDeclSourceLocationCurrent (const FunctionDecl *FD) |
| static CharUnits | GetAlignOfType (const ASTContext &Ctx, QualType T, UnaryExprOrTypeTrait ExprKind) |
| CharUnits | GetAlignOfExpr (const ASTContext &Ctx, const Expr *E, UnaryExprOrTypeTrait ExprKind) |
| static CharUnits | getBaseAlignment (EvalInfo &Info, const LValue &Value) |
| static bool | getAlignmentArgument (const Expr *E, QualType ForType, EvalInfo &Info, APSInt &Alignment) |
| Evaluate the value of the alignment argument to __builtin_align_{up,down}, __builtin_is_aligned and __builtin_assume_aligned. | |
| static bool | isOneByteCharacterType (QualType T) |
| static bool | EvaluateArrayNewInitList (EvalInfo &Info, LValue &This, APValue &Result, const InitListExpr *ILE, QualType AllocType) |
| static bool | EvaluateArrayNewConstructExpr (EvalInfo &Info, LValue &This, APValue &Result, const CXXConstructExpr *CCE, QualType AllocType) |
| static bool | HandleClassZeroInitialization (EvalInfo &Info, const Expr *E, const RecordDecl *RD, const LValue &This, APValue &Result) |
| Perform zero-initialization on an object of non-union class type. C++11 [dcl.init]p5: To zero-initialize an object or reference of type T means: [...] – if T is a (possibly cv-qualified) non-union class type, each non-static data member and each base-class subobject is zero-initialized. | |
| static bool | EvaluateRecord (const Expr *E, const LValue &This, APValue &Result, EvalInfo &Info) |
| static bool | EvaluateVector (const Expr *E, APValue &Result, EvalInfo &Info) |
| static llvm::APInt | ConvertBoolVectorToInt (const APValue &Val) |
| static std::optional< APValue > | handleVectorUnaryOperator (ASTContext &Ctx, QualType ResultTy, UnaryOperatorKind Op, APValue Elt) |
| static bool | handleVectorElementCast (EvalInfo &Info, const FPOptions FPO, const Expr *E, QualType SourceTy, QualType DestTy, APValue const &Original, APValue &Result) |
| static bool | handleVectorShuffle (EvalInfo &Info, const ShuffleVectorExpr *E, QualType ElemType, APValue const &VecVal1, APValue const &VecVal2, unsigned EltNum, APValue &Result) |
| static bool | EvaluateArray (const Expr *E, const LValue &This, APValue &Result, EvalInfo &Info) |
| static bool | MaybeElementDependentArrayFiller (const Expr *FillerExpr) |
| GCCTypeClass | EvaluateBuiltinClassifyType (QualType T, const LangOptions &LangOpts) |
| EvaluateBuiltinClassifyType - Evaluate __builtin_classify_type the same way as GCC. | |
| static GCCTypeClass | EvaluateBuiltinClassifyType (const CallExpr *E, const LangOptions &LangOpts) |
| EvaluateBuiltinClassifyType - Evaluate __builtin_classify_type the same way as GCC. | |
| static bool | EvaluateBuiltinConstantPForLValue (const APValue &LV) |
| EvaluateBuiltinConstantPForLValue - Determine the result of __builtin_constant_p when applied to the given pointer. | |
| static bool | EvaluateBuiltinConstantP (EvalInfo &Info, const Expr *Arg) |
| EvaluateBuiltinConstantP - Evaluate __builtin_constant_p as similarly to GCC as we can manage. | |
| static QualType | getObjectType (APValue::LValueBase B) |
| Retrieves the "underlying object type" of the given expression, as used by __builtin_object_size. | |
| static const Expr * | ignorePointerCastsAndParens (const Expr *E) |
| A more selective version of E->IgnoreParenCasts for tryEvaluateBuiltinObjectSize. This ignores some casts/parens that serve only to change the type of E. Ex. For E = (short*)((char*)(&foo)), returns &foo | |
| static bool | isDesignatorAtObjectEnd (const ASTContext &Ctx, const LValue &LVal) |
| Checks to see if the given LValue's Designator is at the end of the LValue's record layout. e.g. struct { struct { int a, b; } fst, snd; } obj; obj.fst // no obj.snd // yes obj.fst.a // no obj.fst.b // no obj.snd.a // no obj.snd.b // yes. | |
| static bool | refersToCompleteObject (const LValue &LVal) |
| Tests to see if the LValue has a user-specified designator (that isn't necessarily valid). Note that this always returns 'true' if the LValue has an unsized array as its first designator entry, because there's currently no way to tell if the user typed *foo or foo[0]. | |
| static bool | isUserWritingOffTheEnd (const ASTContext &Ctx, const LValue &LVal) |
| Attempts to detect a user writing into a piece of memory that's impossible to figure out the size of by just using types. | |
| static bool | convertUnsignedAPIntToCharUnits (const llvm::APInt &Int, CharUnits &Result) |
| Converts the given APInt to CharUnits, assuming the APInt is unsigned. Fails if the conversion would cause loss of precision. | |
| static void | addFlexibleArrayMemberInitSize (EvalInfo &Info, const QualType &T, const LValue &LV, CharUnits &Size) |
| If we're evaluating the object size of an instance of a struct that contains a flexible array member, add the size of the initializer. | |
| static bool | determineEndOffset (EvalInfo &Info, SourceLocation ExprLoc, unsigned Type, const LValue &LVal, CharUnits &EndOffset) |
| Helper for tryEvaluateBuiltinObjectSize – Given an LValue, this will determine how many bytes exist from the beginning of the object to either the end of the current subobject, or the end of the object itself, depending on what the LValue looks like + the value of Type. | |
| static bool | tryEvaluateBuiltinObjectSize (const Expr *E, unsigned Type, EvalInfo &Info, uint64_t &Size) |
Tries to evaluate the __builtin_object_size for E. If successful, returns true and stores the result in Size. | |
| static bool | getBuiltinAlignArguments (const CallExpr *E, EvalInfo &Info, APValue &Val, APSInt &Alignment) |
| static bool | isOnePastTheEndOfCompleteObject (const ASTContext &Ctx, const LValue &LV) |
| Determine whether this is a pointer past the end of the complete object referred to by the lvalue. | |
| static void | addOrSubLValueAsInteger (APValue &LVal, const APSInt &Index, bool IsSub) |
| template<class SuccessCB, class AfterCB> | |
| static bool | EvaluateComparisonBinaryOperator (EvalInfo &Info, const BinaryOperator *E, SuccessCB &&Success, AfterCB &&DoAfter) |
| static bool | TryEvaluateBuiltinNaN (const ASTContext &Context, QualType ResultTy, const Expr *Arg, bool SNaN, llvm::APFloat &Result) |
| void | HandleComplexComplexMul (APFloat A, APFloat B, APFloat C, APFloat D, APFloat &ResR, APFloat &ResI) |
| void | HandleComplexComplexDiv (APFloat A, APFloat B, APFloat C, APFloat D, APFloat &ResR, APFloat &ResI) |
| static bool | EvaluateVoid (const Expr *E, EvalInfo &Info) |
| static bool | FastEvaluateAsRValue (const Expr *Exp, APValue &Result, const ASTContext &Ctx, bool &IsConst) |
| static bool | hasUnacceptableSideEffect (Expr::EvalStatus &Result, Expr::SideEffectsKind SEK) |
| static bool | EvaluateAsRValue (const Expr *E, Expr::EvalResult &Result, const ASTContext &Ctx, EvalInfo &Info) |
| static bool | EvaluateAsInt (const Expr *E, Expr::EvalResult &ExprResult, const ASTContext &Ctx, Expr::SideEffectsKind AllowSideEffects, EvalInfo &Info) |
| static bool | EvaluateAsFixedPoint (const Expr *E, Expr::EvalResult &ExprResult, const ASTContext &Ctx, Expr::SideEffectsKind AllowSideEffects, EvalInfo &Info) |
| static bool | EvaluateDestruction (const ASTContext &Ctx, APValue::LValueBase Base, APValue DestroyedValue, QualType Type, SourceLocation Loc, Expr::EvalStatus &EStatus, bool IsConstantDestruction) |
| static ICEDiag | NoDiag () |
| static ICEDiag | Worst (ICEDiag A, ICEDiag B) |
| static ICEDiag | CheckEvalInICE (const Expr *E, const ASTContext &Ctx) |
| static ICEDiag | CheckICE (const Expr *E, const ASTContext &Ctx) |
| static bool | EvaluateCPlusPlus11IntegralConstantExpr (const ASTContext &Ctx, const Expr *E, llvm::APSInt *Value) |
| Evaluate an expression as a C++11 integral constant expression. | |
| template<typename T> | |
| static bool | EvaluateCharRangeAsStringImpl (const Expr *, T &Result, const Expr *SizeExpression, const Expr *PtrExpression, ASTContext &Ctx, Expr::EvalResult &Status) |
Macro Definition Documentation
◆ ABSTRACT_STMT
| #define ABSTRACT_STMT | ( | Node | ) |
◆ ABSTRACT_TYPE
| #define ABSTRACT_TYPE | ( | Class, | |
| Base ) |
◆ AMDGPU_TYPE
| #define AMDGPU_TYPE | ( | Name, | |
| Id, | |||
| SingletonId, | |||
| Width, | |||
| Align ) |
◆ BUILTIN_TYPE
| #define BUILTIN_TYPE | ( | ID, | |
| SINGLETON_ID ) |
◆ DEBUG_TYPE
| #define DEBUG_TYPE "exprconstant" |
Definition at line 72 of file ExprConstant.cpp.
◆ DEPENDENT_TYPE [1/2]
| #define DEPENDENT_TYPE | ( | Class, | |
| Base ) |
◆ DEPENDENT_TYPE [2/2]
| #define DEPENDENT_TYPE | ( | ID, | |
| BASE ) |
◆ EXPR
| #define EXPR | ( | Node, | |
| Base ) |
◆ EXT_OPAQUE_TYPE
| #define EXT_OPAQUE_TYPE | ( | ExtType, | |
| Id, | |||
| Ext ) |
◆ FLOATING_TYPE
| #define FLOATING_TYPE | ( | ID, | |
| SINGLETON_ID ) |
◆ HLSL_INTANGIBLE_TYPE
| #define HLSL_INTANGIBLE_TYPE | ( | Name, | |
| Id, | |||
| SingletonId ) |
◆ IMAGE_TYPE
| #define IMAGE_TYPE | ( | ImgType, | |
| Id, | |||
| SingletonId, | |||
| Access, | |||
| Suffix ) |
◆ NON_CANONICAL_TYPE [1/2]
| #define NON_CANONICAL_TYPE | ( | Class, | |
| Base ) |
◆ NON_CANONICAL_TYPE [2/2]
| #define NON_CANONICAL_TYPE | ( | ID, | |
| BASE ) |
◆ NON_CANONICAL_UNLESS_DEPENDENT
| #define NON_CANONICAL_UNLESS_DEPENDENT | ( | Class, | |
| Base ) |
◆ NON_CANONICAL_UNLESS_DEPENDENT_TYPE
| #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE | ( | ID, | |
| BASE ) |
◆ PLACEHOLDER_TYPE
| #define PLACEHOLDER_TYPE | ( | ID, | |
| SINGLETON_ID ) |
◆ PPC_VECTOR_TYPE
| #define PPC_VECTOR_TYPE | ( | Name, | |
| Id, | |||
| Size ) |
◆ RVV_TYPE
| #define RVV_TYPE | ( | Name, | |
| Id, | |||
| SingletonId ) |
◆ SIGNED_TYPE
| #define SIGNED_TYPE | ( | ID, | |
| SINGLETON_ID ) |
◆ STMT
| #define STMT | ( | Node, | |
| Base ) |
◆ SVE_TYPE
| #define SVE_TYPE | ( | Name, | |
| Id, | |||
| SingletonId ) |
◆ TYPE [1/2]
| #define TYPE | ( | Class, | |
| Base ) |
◆ TYPE [2/2]
| #define TYPE | ( | ID, | |
| BASE ) |
◆ WASM_TYPE
| #define WASM_TYPE | ( | Name, | |
| Id, | |||
| SingletonId ) |
Typedef Documentation
◆ CheckedTemporaries
| using CheckedTemporaries |
Materialized temporaries that we've already checked to determine if they're initializsed by a constant expression.
Definition at line 2290 of file ExprConstant.cpp.
Enumeration Type Documentation
◆ CheckEvaluationResultKind
|
strong |
| Enumerator | |
|---|---|
| ConstantExpression | |
| FullyInitialized | |
Definition at line 2283 of file ExprConstant.cpp.
◆ SizeOfType
|
strong |
| Enumerator | |
|---|---|
| SizeOf | |
| DataSizeOf | |
Definition at line 3342 of file ExprConstant.cpp.
Function Documentation
◆ addFlexibleArrayMemberInitSize()
|
static |
If we're evaluating the object size of an instance of a struct that contains a flexible array member, add the size of the initializer.
Definition at line 13407 of file ExprConstant.cpp.
References clang::VarDecl::getFlexibleArrayInitChars(), clang::VarDecl::hasInit(), clang::T, and V.
Referenced by determineEndOffset().
◆ addOrSubLValueAsInteger()
Definition at line 14882 of file ExprConstant.cpp.
References clang::CharUnits::fromQuantity(), clang::APValue::getLValueOffset(), and clang::APValue::hasLValuePath().
◆ AreElementsOfSameArray()
|
static |
Determine whether the given subobject designators refer to elements of the same array object.
Definition at line 4246 of file ExprConstant.cpp.
References FindDesignatorMismatch().
◆ ArePotentiallyOverlappingStringLiterals()
|
static |
Definition at line 2178 of file ExprConstant.cpp.
References LValueBaseString::Bytes, and GetLValueBaseAsString().
Referenced by EvaluateComparisonBinaryOperator().
◆ CastToBaseClass()
|
static |
Cast an lvalue referring to a derived class to a known base subobject.
Definition at line 3302 of file ExprConstant.cpp.
References clang::CXXBasePaths::front(), HandleLValueBase(), and clang::CXXRecordDecl::isDerivedFrom().
Referenced by HandleCovariantReturnAdjustment().
◆ CastToDerivedClass()
|
static |
Cast an lvalue referring to a base subobject to a derived class, by truncating the lvalue's path to the given length.
Definition at line 3216 of file ExprConstant.cpp.
References clang::CSK_Derived, clang::ASTContext::getASTRecordLayout(), clang::ASTRecordLayout::getBaseClassOffset(), clang::ASTRecordLayout::getVBaseClassOffset(), and clang::Decl::isInvalidDecl().
Referenced by HandleBaseToDerivedCast(), HandleDynamicCast(), HandleLValueBase(), HandleMemberPointerAccess(), and HandleVirtualDispatch().
◆ CheckArraySize()
|
static |
Definition at line 3819 of file ExprConstant.cpp.
Referenced by findSubobject(), and HandleDestructionImpl().
◆ CheckConstantExpression()
|
static |
Check that this core constant expression value is a valid value for a constant expression.
If not, report an appropriate diagnostic. Does not check that the expression is of literal type.
Definition at line 2632 of file ExprConstant.cpp.
References CheckEvaluationResult(), ConstantExpression, and clang::Type::isVoidType().
Referenced by clang::Expr::EvaluateAsConstantExpr(), clang::Expr::EvaluateAsInitializer(), and EvaluateAsRValue().
◆ CheckConstexprFunction()
|
static |
CheckConstexprFunction - Check that a function can be called in a constant expression.
Definition at line 6022 of file ExprConstant.cpp.
References bool, clang::cast(), clang::Declaration, clang::Definition, clang::NamedDecl::getIdentifier(), clang::ASTContext::getLangOpts(), clang::Decl::getLocation(), clang::NamedDecl::getName(), clang::isa(), clang::FunctionDecl::isConstexpr(), and clang::SourceLocation::isMacroID().
Referenced by HandleDestructionImpl().
◆ CheckDeleteKind()
|
static |
Check that the given object is a suitable pointer to a heap allocation that still exists and is of the right kind for the purpose of a deletion.
On success, returns the heap allocation to deallocate. On failure, produces a diagnostic and returns std::nullopt.
Definition at line 7292 of file ExprConstant.cpp.
References NoteLValueLocation(), Pointer, and clang::ASTContext::VoidPtrTy.
Referenced by HandleOperatorDeleteCall().
◆ checkDynamicType()
|
static |
Check that we can access the notional vptr of an object / determine its dynamic type.
Definition at line 6112 of file ExprConstant.cpp.
References findCompleteObject(), findSubobject(), clang::APValue::getAsString(), and clang::ASTContext::getLValueReferenceType().
Referenced by checkNonVirtualMemberCallThisPointer(), and ComputeDynamicType().
◆ CheckedIntArithmetic()
|
static |
Perform the given integer operation, which is known to need at most BitWidth bits, and check for overflow in the original type (if that type was not an unsigned type).
Definition at line 2878 of file ExprConstant.cpp.
References clang::ASTContext::getDiagnostics(), clang::Expr::getExprLoc(), clang::Stmt::getSourceRange(), clang::Expr::getType(), HandleOverflow(), clang::DiagnosticsEngine::Report(), and toString().
Referenced by handleIntIntBinOp().
◆ CheckEvalInICE()
|
static |
Definition at line 18010 of file ExprConstant.cpp.
References clang::ConstantExpression, EvaluateAsRValue(), clang::Stmt::getBeginLoc(), clang::Expr::EvalStatus::HasSideEffects, clang::APValue::isInt(), NoDiag(), and clang::Expr::EvalResult::Val.
Referenced by CheckICE().
◆ CheckEvaluationResult()
|
static |
Definition at line 2537 of file ExprConstant.cpp.
References clang::Type::castAsArrayTypeUnsafe(), clang::Type::castAsRecordDecl(), CheckEvaluationResult(), CheckLValueConstantExpression(), CheckMemberPointerConstantExpression(), ConstantExpression, clang::Type::getAs(), clang::ArrayType::getElementType(), clang::Decl::getLocation(), clang::Value::getType(), clang::APValue::hasValue(), and clang::Value::hasValue().
Referenced by CheckConstantExpression(), CheckEvaluationResult(), CheckFullyInitialized(), and CheckLValueConstantExpression().
◆ checkFloatingPointResult()
Check if the given evaluation result is allowed for constant evaluation.
Definition at line 2774 of file ExprConstant.cpp.
References clang::LangOptionsBase::FPE_Ignore, clang::FPOptions::getExceptionMode(), clang::Expr::getFPFeaturesInEffect(), clang::ASTContext::getLangOpts(), and clang::FPOptions::getRoundingMode().
Referenced by handleFloatFloatBinOp(), HandleFloatToFloatCast(), and HandleIntToFloatCast().
◆ CheckFullyInitialized()
|
static |
Check that this evaluated value is fully-initialized and can be loaded by an lvalue-to-rvalue conversion.
Definition at line 2647 of file ExprConstant.cpp.
References CheckEvaluationResult(), and FullyInitialized.
◆ CheckICE()
|
static |
Definition at line 18023 of file ExprConstant.cpp.
References clang::cast(), CheckEvalInICE(), CheckICE(), clang::Expr::EvaluateKnownConstInt(), clang::ASTContext::getAsVariableArrayType(), clang::Stmt::getBeginLoc(), clang::CallExpr::getBuiltinCallee(), clang::BinaryConditionalOperator::getCommon(), clang::ConditionalOperator::getCond(), getExpr(), clang::BinaryConditionalOperator::getFalseExpr(), clang::ConditionalOperator::getFalseExpr(), clang::ASTContext::getIntWidth(), clang::UnaryExprOrTypeTraitExpr::getKind(), clang::ASTContext::getLangOpts(), clang::BinaryOperator::getLHS(), clang::BinaryOperator::getOpcode(), clang::UnaryOperator::getOpcode(), clang::BinaryOperator::getRHS(), clang::VariableArrayType::getSizeExpr(), clang::Stmt::getStmtClass(), clang::UnaryOperator::getSubExpr(), clang::ConditionalOperator::getTrueExpr(), clang::Expr::getType(), clang::ValueDecl::getType(), clang::UnaryExprOrTypeTraitExpr::getTypeOfArgument(), clang::Expr::IgnoreParenCasts(), clang::Expr::IgnoreParenImpCasts(), clang::isa(), clang::Type::isIntegralOrEnumerationType(), clang::Expr::isPRValue(), clang::Type::isReferenceType(), clang::Type::isSignedIntegerOrEnumerationType(), clang::VarDecl::isUsableInConstantExpressions(), clang::Expr::isValueDependent(), clang::Type::isVariableArrayType(), NoDiag(), clang::Stmt::NoStmtClass, and Worst().
Referenced by CheckICE(), clang::Expr::isCXX98IntegralConstantExpr(), and clang::Expr::isIntegerConstantExpr().
◆ CheckLiteralType()
Check that this core constant expression is of literal type, and if not, produce an appropriate diagnostic.
Definition at line 2503 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Type::isLiteralType(), and clang::Expr::isPRValue().
Referenced by CheckConstexprDeclStmt(), CheckConstexprParameterTypes(), CheckConstexprReturnType(), EvaluateAsRValue(), and EvaluateInPlace().
◆ CheckLocalVariableDeclaration()
Definition at line 5488 of file ExprConstant.cpp.
References clang::Decl::getLocation(), clang::VarDecl::getTSCSpec(), clang::VarDecl::isLocalVarDecl(), clang::VarDecl::isStaticLocal(), clang::VarDecl::isUsableInConstantExpressions(), and clang::TSCS_unspecified.
Referenced by EvaluateStmt().
◆ CheckLValueConstantExpression()
|
static |
Check that this reference or pointer core constant expression is a valid value for an address or reference constant expression.
Return true if we can fold this expression, whether or not it's a constant expression.
Definition at line 2303 of file ExprConstant.cpp.
References CheckEvaluationResult(), ConstantExpression, clang::FixItHint::CreateInsertion(), getType(), clang::Type::isAnyPointerType(), clang::QualType::isDestructedType(), IsGlobalLValue(), clang::Type::isReferenceType(), NoteLValueLocation(), and V.
Referenced by CheckEvaluationResult(), and clang::Expr::EvaluateAsLValue().
◆ CheckMemberPointerConstantExpression()
|
static |
Member pointers are constant expressions unless they point to a non-virtual dllimport member function.
Definition at line 2483 of file ExprConstant.cpp.
References clang::Member.
Referenced by CheckEvaluationResult().
◆ CheckMemoryLeaks()
|
static |
Enforce C++2a [expr.const]/4.17, which disallows new-expressions unless "the allocated storage is deallocated within the evaluation".
Definition at line 2657 of file ExprConstant.cpp.
Referenced by clang::Expr::EvaluateAsConstantExpr(), clang::Expr::EvaluateAsInitializer(), EvaluateAsRValue(), and EvaluateCharRangeAsStringImpl().
◆ checkNonVirtualMemberCallThisPointer()
|
static |
Check that the pointee of the 'this' pointer in a member function call is either within its lifetime or in its period of construction or destruction.
Definition at line 6157 of file ExprConstant.cpp.
References clang::AK_Destroy, clang::AK_MemberCall, checkDynamicType(), and clang::isa().
◆ CheckTrivialDefaultConstructor()
|
static |
CheckTrivialDefaultConstructor - Check whether a constructor is a trivial default constructor.
If so, we'll fold it whether or not it's marked as constexpr. If it is marked as constexpr, we will never implicitly define it, so we need special handling.
Definition at line 5997 of file ExprConstant.cpp.
References clang::Decl::getLocation(), clang::FunctionDecl::isConstexpr(), clang::CXXConstructorDecl::isDefaultConstructor(), and clang::FunctionDecl::isTrivial().
◆ ComputeDynamicType()
|
static |
Determine the dynamic type of an object.
Definition at line 6182 of file ExprConstant.cpp.
References clang::AK_TypeId, checkDynamicType(), and getBaseClassType().
Referenced by HandleDynamicCast(), and HandleVirtualDispatch().
◆ ConvertBoolVectorToInt()
|
static |
Definition at line 11271 of file ExprConstant.cpp.
References clang::APValue::getInt(), clang::APValue::getVectorElt(), clang::APValue::getVectorLength(), clang::APValue::isInt(), clang::APValue::isVector(), and clang::Result.
◆ convertUnsignedAPIntToCharUnits()
Converts the given APInt to CharUnits, assuming the APInt is unsigned. Fails if the conversion would cause loss of precision.
Definition at line 13396 of file ExprConstant.cpp.
References clang::CharUnits::fromQuantity().
Referenced by determineEndOffset().
◆ determineEndOffset()
|
static |
Helper for tryEvaluateBuiltinObjectSize – Given an LValue, this will determine how many bytes exist from the beginning of the object to either the end of the current subobject, or the end of the object itself, depending on what the LValue looks like + the value of Type.
If this returns false, the value of Result is undefined.
Definition at line 13423 of file ExprConstant.cpp.
References addFlexibleArrayMemberInitSize(), convertUnsignedAPIntToCharUnits(), getBytesReturnedByAllocSizeCall(), clang::QualType::getNonReferenceType(), getObjectType(), HandleSizeof(), clang::Type::isFunctionType(), clang::Type::isIncompleteType(), clang::QualType::isNull(), isUserWritingOffTheEnd(), and refersToCompleteObject().
Referenced by tryEvaluateBuiltinObjectSize().
◆ diagnoseMutableFields()
|
static |
Diagnose an attempt to read from any unreadable field within the specified type, which might be a class type.
Definition at line 3746 of file ExprConstant.cpp.
References clang::CXXRecordDecl::bases(), diagnoseMutableFields(), clang::RecordDecl::fields(), clang::Expr::getType(), clang::CXXRecordDecl::hasMutableFields(), isReadByLvalueToRvalueConversion(), clang::TagDecl::isUnion(), and clang::T.
Referenced by diagnoseMutableFields(), and findSubobject().
◆ EvalPointerValueAsBool()
Definition at line 2669 of file ExprConstant.cpp.
Referenced by HandleConversionToBool().
◆ Evaluate()
Definition at line 17358 of file ExprConstant.cpp.
References clang::APValue, clang::C, EvaluateArray(), EvaluateAtomic(), EvaluateComplex(), EvaluateFloat(), EvaluateLValue(), EvaluateMemberPointer(), EvaluatePointer(), EvaluateRecord(), EvaluateVector(), EvaluateVoid(), clang::Expr::getType(), clang::Type::isArrayType(), clang::Expr::isGLValue(), clang::Type::isRecordType(), clang::Expr::isValueDependent(), and clang::T.
Referenced by EvaluateAsBooleanCondition(), EvaluateAsRValue(), EvaluateIgnoredValue(), EvaluateInPlace(), EvaluateStmt(), clang::Expr::EvaluateWithSubstitution(), and clang::Expr::isPotentialConstantExprUnevaluated().
◆ EvaluateArgs()
|
static |
Evaluate the arguments to a function call.
Definition at line 6629 of file ExprConstant.cpp.
References clang::Call, EvaluateCallArg(), clang::ParmVarDecl::isExplicitObjectParameter(), clang::APValue::isLValue(), clang::NonNull, and clang::Success.
Referenced by HandleConstructorCall().
◆ EvaluateArray()
|
static |
Definition at line 12334 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Type::isArrayType(), clang::Expr::isPRValue(), and clang::Expr::isValueDependent().
Referenced by Evaluate(), and EvaluateInPlace().
◆ EvaluateArrayNewConstructExpr()
|
static |
Definition at line 12352 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Type::isArrayType(), clang::Expr::isPRValue(), and clang::Expr::isValueDependent().
◆ EvaluateArrayNewInitList()
|
static |
Definition at line 12342 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Type::isArrayType(), clang::Expr::isPRValue(), and clang::Expr::isValueDependent().
◆ EvaluateAsBooleanCondition()
Definition at line 2727 of file ExprConstant.cpp.
References Evaluate(), HandleConversionToBool(), clang::Expr::isPRValue(), and clang::Expr::isValueDependent().
Referenced by EvaluateCond(), and EvaluateStmt().
◆ EvaluateAsFixedPoint()
|
static |
Definition at line 17596 of file ExprConstant.cpp.
References EvaluateAsRValue(), clang::Expr::getType(), hasUnacceptableSideEffect(), clang::Type::isFixedPointType(), and clang::Expr::isValueDependent().
◆ EvaluateAsInt()
|
static |
Definition at line 17580 of file ExprConstant.cpp.
References EvaluateAsRValue(), clang::Expr::getType(), hasUnacceptableSideEffect(), clang::Type::isIntegralOrEnumerationType(), and clang::Expr::isValueDependent().
Referenced by isInLoop().
◆ EvaluateAsRValue() [1/2]
|
static |
Definition at line 17570 of file ExprConstant.cpp.
References EvaluateAsRValue(), FastEvaluateAsRValue(), and clang::Expr::isValueDependent().
◆ EvaluateAsRValue() [2/2]
EvaluateAsRValue - Try to evaluate this expression, performing an implicit lvalue-to-rvalue cast if it is an lvalue.
Definition at line 17478 of file ExprConstant.cpp.
References CheckConstantExpression(), CheckLiteralType(), CheckMemoryLeaks(), Evaluate(), clang::interp::Context::evaluateAsRValue(), clang::Expr::getExprLoc(), clang::ASTContext::getInterpContext(), clang::Expr::getType(), handleLValueToRValueConversion(), clang::Expr::isGLValue(), clang::QualType::isNull(), and clang::Expr::isValueDependent().
Referenced by CheckEvalInICE(), clang::Expr::EvaluateAsBooleanCondition(), EvaluateAsFixedPoint(), clang::Expr::EvaluateAsFloat(), EvaluateAsInt(), EvaluateAsRValue(), EvaluateBuiltinConstantP(), clang::Expr::EvaluateKnownConstInt(), clang::Expr::EvaluateKnownConstIntCheckOverflow(), clang::Expr::isCXX11ConstantExpr(), clang::Expr::isEvaluatable(), and tryEvaluateBuiltinObjectSize().
◆ EvaluateAtomic()
|
static |
Definition at line 17219 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Type::isAtomicType(), clang::Expr::isPRValue(), and clang::Expr::isValueDependent().
Referenced by Evaluate(), and EvaluateInPlace().
◆ EvaluateBuiltinClassifyType() [1/2]
|
static |
EvaluateBuiltinClassifyType - Evaluate __builtin_classify_type the same way as GCC.
Definition at line 13120 of file ExprConstant.cpp.
References EvaluateBuiltinClassifyType(), clang::CallExpr::getArg(), clang::CallExpr::getNumArgs(), clang::Expr::getType(), and None.
◆ EvaluateBuiltinClassifyType() [2/2]
| GCCTypeClass EvaluateBuiltinClassifyType | ( | QualType | T, |
| const LangOptions & | LangOpts ) |
EvaluateBuiltinClassifyType - Evaluate __builtin_classify_type the same way as GCC.
Definition at line 12965 of file ExprConstant.cpp.
References BitInt, Bool, clang::cast(), clang::Type::castAs(), ClassOrStruct, Complex, Enum, EvaluateBuiltinClassifyType(), getKind(), clang::Type::getTypeClass(), clang::AtomicType::getValueType(), Integer, clang::Type::isMemberDataPointerType(), clang::Type::isUnionType(), None, Pointer, PointerToDataMember, PointerToMemberFunction, clang::T, Union, Vector, and Void.
Referenced by EvaluateBuiltinClassifyType(), EvaluateBuiltinClassifyType(), and clang::interp::interp__builtin_classify_type().
◆ EvaluateBuiltinConstantP()
EvaluateBuiltinConstantP - Evaluate __builtin_constant_p as similarly to GCC as we can manage.
Definition at line 13158 of file ExprConstant.cpp.
References EvaluateAsRValue(), EvaluateBuiltinConstantPForLValue(), clang::Expr::getType(), clang::Expr::EvalStatus::HasSideEffects, clang::APValue::LValue, and V.
◆ EvaluateBuiltinConstantPForLValue()
EvaluateBuiltinConstantPForLValue - Determine the result of __builtin_constant_p when applied to the given pointer.
A pointer is only "constant" if it is null (or a pointer cast to integer) or it points to the first character of a string literal.
Definition at line 13137 of file ExprConstant.cpp.
References clang::APValue::getLValueBase(), clang::APValue::getLValueOffset(), clang::isa(), and clang::CharUnits::isZero().
Referenced by EvaluateBuiltinConstantP().
◆ EvaluateBuiltinStrLen()
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Definition at line 18715 of file ExprConstant.cpp.
References clang::ASTContext::CharTy, EvaluatePointer(), clang::StringLiteral::getBytes(), clang::StringLiteral::getCharByteWidth(), clang::APValue::getInt(), clang::Type::getPointeeType(), clang::CharUnits::getQuantity(), clang::Expr::getType(), HandleLValueArrayAdjustment(), handleLValueToRValueConversion(), clang::Type::hasPointerRepresentation(), clang::ASTContext::hasSameUnqualifiedType(), clang::APValue::isInt(), and clang::Expr::isPRValue().
Referenced by clang::Expr::tryEvaluateString(), and clang::Expr::tryEvaluateStrLen().
◆ EvaluateCallArg()
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Definition at line 6600 of file ExprConstant.cpp.
References clang::Call, EvaluateInPlace(), clang::Expr::getType(), clang::NonNull, and V.
Referenced by EvaluateArgs(), and clang::Expr::EvaluateWithSubstitution().
◆ EvaluateCharRangeAsStringImpl()
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Definition at line 18779 of file ExprConstant.cpp.
References clang::APValue, clang::C, CheckMemoryLeaks(), clang::ConstantExpression, clang::interp::Context::evaluateCharRange(), EvaluateInteger(), EvaluatePointer(), clang::APValue::getInt(), clang::ASTContext::getInterpContext(), clang::Type::getPointeeType(), clang::Expr::getType(), HandleLValueArrayAdjustment(), handleLValueToRValueConversion(), and clang::T.
Referenced by clang::Expr::EvaluateCharRangeAsString(), and clang::Expr::EvaluateCharRangeAsString().
◆ EvaluateComparisonBinaryOperator()
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Definition at line 15047 of file ExprConstant.cpp.
References ArePotentiallyOverlappingStringLiterals(), clang::Equal, clang::Error, EvaluateComplex(), EvaluateFixedPointOrInteger(), EvaluateFloat(), EvaluateInteger(), EvaluateLValue(), EvaluateMemberPointer(), EvaluatePointer(), FindDesignatorMismatch(), clang::Decl::getAccess(), clang::ASTContext::getFixedPointSemantics(), clang::BinaryOperator::getFPFeaturesInEffect(), clang::ASTContext::getLangOpts(), clang::BinaryOperator::getLHS(), clang::BinaryOperator::getOpcode(), clang::FieldDecl::getParent(), clang::CharUnits::getQuantity(), clang::BinaryOperator::getRHS(), clang::Expr::getType(), getType(), clang::ASTContext::getTypeSize(), clang::ASTContext::getTypeSizeInChars(), HasSameBase(), clang::Type::isAnyComplexType(), clang::BinaryOperator::isAssignmentOp(), clang::BinaryOperator::isComparisonOp(), clang::BinaryOperator::isEqualityOp(), clang::Type::isFixedPointType(), clang::FPOptions::isFPConstrained(), clang::Type::isIncompleteType(), clang::Type::isIntegralOrEnumerationType(), clang::Type::isMemberPointerType(), clang::APValue::LValueBase::isNull(), clang::Type::isNullPtrType(), isOnePastTheEndOfCompleteObject(), IsOpaqueConstantCall(), clang::Type::isPointerType(), clang::Type::isRealFloatingType(), clang::BinaryOperator::isRelationalOp(), clang::TagDecl::isUnion(), clang::Expr::isValueDependent(), IsWeakLValue(), clang::CharUnits::isZero(), isZeroSized(), clang::Reversed, and clang::Success.
◆ EvaluateComplex()
Definition at line 16650 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Type::isAnyComplexType(), clang::Expr::isPRValue(), and clang::Expr::isValueDependent().
Referenced by Evaluate(), and EvaluateComparisonBinaryOperator().
◆ EvaluateCond()
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Evaluate a condition (either a variable declaration or an expression).
Definition at line 5311 of file ExprConstant.cpp.
References clang::Cond, EvaluateAsBooleanCondition(), EvaluateDecl(), and MaybeEvaluateDeferredVarDeclInit().
Referenced by EvaluateStmt().
◆ EvaluateCPlusPlus11IntegralConstantExpr()
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Evaluate an expression as a C++11 integral constant expression.
Definition at line 18442 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Expr::isCXX11ConstantExpr(), and clang::Type::isIntegralOrUnscopedEnumerationType().
Referenced by clang::Expr::getIntegerConstantExpr(), and clang::Expr::isIntegerConstantExpr().
◆ EvaluateDecl()
Definition at line 5269 of file ExprConstant.cpp.
References EvaluateDecompositionDeclInit(), and EvaluateVarDecl().
Referenced by EvaluateCond(), EvaluateDecompositionDeclInit(), EvaluateStmt(), and EvaluateSwitch().
◆ EvaluateDecompositionDeclInit()
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Definition at line 5282 of file ExprConstant.cpp.
References EvaluateDecl(), and clang::DecompositionDecl::flat_bindings().
Referenced by EvaluateDecl(), and MaybeEvaluateDeferredVarDeclInit().
◆ EvaluateDependentExpr()
Definition at line 5301 of file ExprConstant.cpp.
References clang::Expr::containsErrors(), and clang::Expr::isValueDependent().
Referenced by EvaluateStmt(), EvaluateSwitch(), and HandleConstructorCall().
◆ EvaluateDestruction()
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Definition at line 17714 of file ExprConstant.cpp.
References clang::ConstantExpression, clang::ConstantFold, HandleDestruction(), and clang::Expr::EvalStatus::HasSideEffects.
Referenced by clang::Expr::EvaluateAsConstantExpr(), and clang::VarDecl::evaluateDestruction().
◆ EvaluateFixedPoint()
Evaluate only a fixed point expression into an APResult.
Definition at line 12904 of file ExprConstant.cpp.
References clang::APValue::getFixedPoint(), clang::Expr::getType(), clang::APValue::isFixedPoint(), clang::Type::isFixedPointType(), and clang::Expr::isValueDependent().
Referenced by EvaluateFixedPointOrInteger().
◆ EvaluateFixedPointOrInteger()
Evaluate an integer or fixed point expression into an APResult.
Definition at line 12920 of file ExprConstant.cpp.
References EvaluateFixedPoint(), EvaluateInteger(), clang::ASTContext::getFixedPointSemantics(), clang::Expr::getType(), clang::Type::isFixedPointType(), clang::Type::isIntegerType(), and clang::Expr::isValueDependent().
Referenced by EvaluateComparisonBinaryOperator().
◆ EvaluateFloat()
Definition at line 16314 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Expr::isPRValue(), clang::Type::isRealFloatingType(), and clang::Expr::isValueDependent().
Referenced by Evaluate(), and EvaluateComparisonBinaryOperator().
◆ EvaluateIgnoredValue()
Evaluate an expression to see if it had side-effects, and discard its result.
- Returns
trueif the caller should keep evaluating.
Definition at line 2032 of file ExprConstant.cpp.
References Evaluate(), and clang::Expr::isValueDependent().
Referenced by EvaluateStmt(), HandleOperatorDeleteCall(), and HandleOperatorNewCall().
◆ EvaluateInitForDeclOfReferenceType()
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Evaluates the initializer of a reference.
Definition at line 5209 of file ExprConstant.cpp.
References clang::AK_Dereference, EvaluateLValue(), clang::ValueDecl::getType(), clang::Init, and clang::Type::isReferenceType().
Referenced by EvaluateVarDecl(), and HandleConstructorCall().
◆ EvaluateInPlace()
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EvaluateInPlace - Evaluate an expression in-place in an APValue. In some cases, the in-place evaluation is essential, since later initializers for an object can indirectly refer to subobjects which were initialized earlier.
Definition at line 17444 of file ExprConstant.cpp.
References CheckLiteralType(), Evaluate(), EvaluateArray(), EvaluateAtomic(), EvaluateRecord(), clang::Expr::getType(), clang::Type::isArrayType(), clang::QualType::isNull(), clang::Expr::isPRValue(), clang::Type::isRecordType(), clang::Expr::isValueDependent(), and clang::T.
Referenced by clang::Expr::EvaluateAsConstantExpr(), clang::Expr::EvaluateAsInitializer(), EvaluateCallArg(), EvaluateStmt(), EvaluateVarDecl(), HandleClassZeroInitialization(), and HandleConstructorCall().
◆ EvaluateInteger()
Definition at line 12883 of file ExprConstant.cpp.
References EvaluateIntegerOrLValue(), clang::APValue::getInt(), clang::APValue::isInt(), and clang::Expr::isValueDependent().
Referenced by EvaluateCharRangeAsStringImpl(), EvaluateComparisonBinaryOperator(), EvaluateFixedPointOrInteger(), EvaluateSwitch(), getAlignmentArgument(), getBuiltinAlignArguments(), and HandleOperatorNewCall().
◆ EvaluateIntegerOrLValue()
EvaluateIntegerOrLValue - Evaluate an rvalue integral-typed expression, and produce either the integer value or a pointer.
GCC has a heinous extension which folds casts between pointer types and pointer-sized integral types. We support this by allowing the evaluation of an integer rvalue to produce a pointer (represented as an lvalue) instead. Some simple arithmetic on such values is supported (they are treated much like char*).
Definition at line 12876 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Type::isIntegralOrEnumerationType(), clang::Expr::isPRValue(), and clang::Expr::isValueDependent().
Referenced by EvaluateInteger().
◆ EvaluateLoopBody()
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Evaluate the body of a loop, and translate the result as appropriate.
Definition at line 5392 of file ExprConstant.cpp.
References EvaluateStmt().
Referenced by EvaluateStmt().
◆ EvaluateLValue()
Evaluate an expression as an lvalue. This can be legitimately called on expressions which are not glvalues, in three cases:
- function designators in C, and
- "extern void" objects
- @selector() expressions in Objective-C
Definition at line 9038 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Expr::IgnoreParens(), clang::isa(), clang::Type::isFunctionType(), clang::Expr::isGLValue(), clang::Expr::isValueDependent(), and clang::Type::isVoidType().
Referenced by Evaluate(), clang::Expr::EvaluateAsLValue(), EvaluateComparisonBinaryOperator(), EvaluateInitForDeclOfReferenceType(), and EvaluateObjectArgument().
◆ evaluateLValueAsAllocSize()
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Attempts to evaluate the given LValueBase as the result of a call to a function with the alloc_size attribute. If it was possible to do so, this function will return true, make Result's Base point to said function call, and mark Result's Base as invalid.
Definition at line 9501 of file ExprConstant.cpp.
References clang::Type::castAs(), clang::VarDecl::getAnyInitializer(), getPointeeType(), clang::Expr::getType(), clang::ValueDecl::getType(), clang::Init, clang::QualType::isConstQualified(), and clang::VarDecl::isLocalVarDecl().
◆ EvaluateMemberPointer()
Definition at line 10640 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Type::isMemberPointerType(), clang::Expr::isPRValue(), and clang::Expr::isValueDependent().
Referenced by Evaluate(), EvaluateComparisonBinaryOperator(), HandleMemberPointerAccess(), and HandleMemberPointerAccess().
◆ EvaluateObjectArgument()
Build an lvalue for the object argument of a member function call.
Definition at line 4950 of file ExprConstant.cpp.
References EvaluateLValue(), EvaluatePointer(), and EvaluateTemporary().
Referenced by clang::Expr::EvaluateWithSubstitution(), and HandleMemberPointerAccess().
◆ EvaluatePointer()
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Definition at line 9671 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Type::hasPointerRepresentation(), clang::Expr::isPRValue(), and clang::Expr::isValueDependent().
Referenced by Evaluate(), EvaluateBuiltinStrLen(), EvaluateCharRangeAsStringImpl(), EvaluateComparisonBinaryOperator(), EvaluateObjectArgument(), getBuiltinAlignArguments(), HandleOperatorDeleteCall(), and tryEvaluateBuiltinObjectSize().
◆ EvaluateRecord()
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Definition at line 11160 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Expr::isPRValue(), clang::Type::isRecordType(), and clang::Expr::isValueDependent().
Referenced by Evaluate(), and EvaluateInPlace().
◆ EvaluateStmt()
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Definition at line 5503 of file ExprConstant.cpp.
References clang::CompoundStmt::body(), clang::cast(), CheckLocalVariableDeclaration(), clang::Cond, clang::DeclStmt::decls(), Evaluate(), EvaluateAsBooleanCondition(), EvaluateCond(), EvaluateDecl(), EvaluateDependentExpr(), EvaluateIgnoredValue(), EvaluateInPlace(), EvaluateLoopBody(), EvaluateStmt(), EvaluateSwitch(), EvaluateVarDecl(), clang::Stmt::getBeginLoc(), clang::CXXForRangeStmt::getBeginStmt(), clang::CXXForRangeStmt::getBody(), clang::DoStmt::getBody(), clang::ForStmt::getBody(), clang::WhileStmt::getBody(), clang::CXXForRangeStmt::getCond(), clang::DoStmt::getCond(), clang::ForStmt::getCond(), clang::IfStmt::getCond(), clang::WhileStmt::getCond(), clang::ForStmt::getConditionVariable(), clang::IfStmt::getConditionVariable(), clang::WhileStmt::getConditionVariable(), clang::IfStmt::getElse(), clang::CXXForRangeStmt::getEndStmt(), clang::CXXForRangeStmt::getInc(), clang::ForStmt::getInc(), clang::CXXForRangeStmt::getInit(), clang::ForStmt::getInit(), clang::IfStmt::getInit(), clang::CXXForRangeStmt::getLoopVarStmt(), clang::CXXForRangeStmt::getRangeStmt(), clang::Stmt::getSourceRange(), clang::Stmt::getStmtClass(), clang::IfStmt::getThen(), clang::hasSpecificAttr(), clang::Init, clang::isa(), clang::IfStmt::isConsteval(), clang::IfStmt::isNonNegatedConsteval(), clang::Expr::isValueDependent(), and ShouldPropagateBreakContinue().
Referenced by EvaluateLoopBody(), EvaluateStmt(), EvaluateSwitch(), HandleConstructorCall(), HandleDestructionImpl(), and HandleFunctionCall().
◆ EvaluateSwitch()
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Evaluate a switch statement.
Definition at line 5405 of file ExprConstant.cpp.
References clang::cast(), EvaluateDecl(), EvaluateDependentExpr(), EvaluateInteger(), clang::Expr::EvaluateKnownConstInt(), EvaluateStmt(), clang::Found, clang::SwitchStmt::getBody(), clang::SwitchStmt::getCond(), clang::SwitchStmt::getConditionVariable(), clang::SwitchStmt::getInit(), clang::CaseStmt::getLHS(), clang::SwitchCase::getNextSwitchCase(), clang::CaseStmt::getRHS(), clang::SwitchStmt::getSwitchCaseList(), clang::Init, clang::isa(), clang::Expr::isValueDependent(), MaybeEvaluateDeferredVarDeclInit(), and ShouldPropagateBreakContinue().
Referenced by EvaluateStmt().
◆ EvaluateTemporary()
Evaluate an expression of record type as a temporary.
Definition at line 11217 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Expr::isPRValue(), clang::Type::isRecordType(), and clang::Expr::isValueDependent().
Referenced by EvaluateObjectArgument().
◆ EvaluateVarDecl()
Definition at line 5232 of file ExprConstant.cpp.
References clang::APValue, EvaluateInitForDeclOfReferenceType(), EvaluateInPlace(), clang::VarDecl::getInit(), clang::ValueDecl::getType(), handleDefaultInitValue(), clang::VarDecl::hasLocalStorage(), clang::Type::isDependentType(), clang::Decl::isInvalidDecl(), clang::Type::isReferenceType(), and clang::Expr::isValueDependent().
Referenced by EvaluateDecl(), and EvaluateStmt().
◆ evaluateVarDeclInit()
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Try to evaluate the initializer for a variable declaration.
- Parameters
-
Info Information about the ongoing evaluation. E An expression to be used when printing diagnostics. VD The variable whose initializer should be obtained. Version The version of the variable within the frame. Frame The frame in which the variable was created. Must be null if this variable is not local to the evaluation. Result Filled in with a pointer to the value of the variable.
Definition at line 3440 of file ExprConstant.cpp.
References clang::DeclContext::Equals(), clang::VarDecl::evaluateValue(), clang::VarDecl::getAnyInitializer(), clang::Stmt::getBeginLoc(), clang::Decl::getDeclContext(), clang::VarDecl::getEvaluatedValue(), clang::ValueDecl::getType(), clang::VarDecl::hasConstantInitialization(), clang::VarDecl::hasICEInitializer(), clang::Init, clang::isa(), clang::VarDecl::isInitCapture(), clang::isLambdaCallOperator(), clang::Type::isReferenceType(), clang::Expr::isValueDependent(), clang::ValueDecl::isWeak(), clang::VarDecl::mightBeUsableInConstantExpressions(), and NoteLValueLocation().
Referenced by findCompleteObject().
◆ EvaluateVector()
Definition at line 11265 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Expr::isPRValue(), and clang::Type::isVectorType().
Referenced by Evaluate().
◆ EvaluateVoid()
Definition at line 17348 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Expr::isPRValue(), clang::Expr::isValueDependent(), and clang::Type::isVoidType().
Referenced by Evaluate().
◆ expandArray()
Definition at line 3694 of file ExprConstant.cpp.
References clang::APValue::getArrayFiller(), clang::APValue::getArrayInitializedElt(), clang::APValue::hasArrayFiller(), and clang::APValue::swap().
Referenced by findSubobject(), and HandleDestructionImpl().
◆ expandStringLiteral()
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Definition at line 3671 of file ExprConstant.cpp.
References clang::APValue, clang::ASTContext::getAsConstantArrayType(), clang::StringLiteral::getCodeUnit(), clang::ArrayType::getElementType(), clang::StringLiteral::getLength(), clang::Expr::getType(), clang::ASTContext::getTypeSize(), clang::ConstantArrayType::getZExtSize(), clang::Type::isIntegerType(), and clang::Type::isUnsignedIntegerType().
◆ extractStringLiteralCharacter()
Extract the value of a character from a string literal.
Definition at line 3639 of file ExprConstant.cpp.
References clang::cast(), clang::ASTContext::getAsConstantArrayType(), clang::StringLiteral::getCodeUnit(), clang::ArrayType::getElementType(), clang::ASTContext::getObjCEncodingForType(), clang::Expr::getType(), clang::ASTContext::getTypeSize(), clang::isa(), clang::Type::isIntegerType(), and clang::Type::isUnsignedIntegerType().
Referenced by handleLValueToRValueConversion().
◆ extractSubobject()
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Extract the designated sub-object of an rvalue.
Definition at line 4141 of file ExprConstant.cpp.
References clang::AK_Read, clang::AK_ReadObjectRepresentation, and findSubobject().
Referenced by handleLValueToRValueConversion().
◆ FastEvaluateAsRValue()
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Definition at line 17511 of file ExprConstant.cpp.
References clang::APValue, FastEvaluateAsRValue(), clang::Expr::getType(), clang::APValue::isLValue(), clang::QualType::isNull(), and clang::ASTContext::MakeIntValue().
Referenced by clang::Expr::EvaluateAsConstantExpr(), EvaluateAsRValue(), clang::Expr::EvaluateForOverflow(), FastEvaluateAsRValue(), and clang::Expr::isCXX11ConstantExpr().
◆ findCompleteObject()
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Find the complete object to which an LValue refers.
Definition at line 4266 of file ExprConstant.cpp.
References clang::AK_Dereference, clang::APValue::LValueBase::dyn_cast(), evaluateVarDeclInit(), clang::APValue::getAsString(), clang::VarDecl::getDefinition(), clang::APValue::LValueBase::getDynamicAllocType(), clang::Decl::getLocation(), clang::ASTContext::getLValueReferenceType(), getType(), clang::APValue::LValueBase::getVersion(), clang::VarDecl::hasDefinition(), clang::Expr::EvalStatus::HasSideEffects, clang::APValue::LValueBase::is(), clang::isa(), isAnyAccess(), clang::Type::isArrayType(), clang::VarDecl::isConstexpr(), isFormalAccess(), clang::Decl::isInvalidDecl(), isModification(), clang::QualType::isVolatileQualified(), lifetimeStartedInEvaluation(), NoteLValueLocation(), clang::SD_Static, and V.
Referenced by checkDynamicType(), handleAssignment(), handleCompoundAssignment(), HandleDestruction(), handleIncDec(), handleLValueToRValueConversion(), and MaybeHandleUnionActiveMemberChange().
◆ FindDesignatorMismatch()
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Find the position where two subobject designators diverge, or equivalently the length of the common initial subsequence.
Definition at line 4209 of file ExprConstant.cpp.
References clang::Type::castAs(), clang::Type::castAsArrayTypeUnsafe(), clang::ArrayType::getElementType(), clang::Type::isAnyComplexType(), clang::Type::isArrayType(), and clang::QualType::isNull().
Referenced by AreElementsOfSameArray(), and EvaluateComparisonBinaryOperator().
◆ findSubobject()
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Find the designated sub-object of an rvalue.
Definition at line 3880 of file ExprConstant.cpp.
References clang::AK_Construct, clang::AK_IsWithinLifetime, clang::APValue, clang::Type::castAs(), clang::Type::castAsCanonical(), CheckArraySize(), diagnoseMutableFields(), clang::APValue::LValueBase::dyn_cast(), expandArray(), clang::APValue::getArrayFiller(), clang::APValue::getArrayInitializedElt(), clang::APValue::getArrayInitializedElts(), clang::Type::getAs(), clang::ASTContext::getAsArrayType(), clang::Type::getAsCXXRecordDecl(), getBaseIndex(), clang::FieldDecl::getCanonicalDecl(), clang::ASTContext::getCanonicalTagType(), clang::ASTContext::getCanonicalType(), clang::APValue::getComplexFloatImag(), clang::APValue::getComplexFloatReal(), clang::APValue::getComplexIntImag(), clang::APValue::getComplexIntReal(), clang::ArrayType::getElementType(), clang::ComplexType::getElementType(), clang::Expr::getExprLoc(), clang::Decl::getLocation(), clang::ConstantArrayType::getSize(), clang::Stmt::getSourceRange(), clang::APValue::getStructBase(), clang::APValue::getStructField(), getSubobjectType(), clang::APValue::getUnionField(), clang::APValue::getUnionValue(), clang::APValue::getVectorElt(), clang::isa(), clang::APValue::isAbsent(), clang::Type::isAnyComplexType(), clang::Type::isArrayType(), clang::FieldDecl::isBitField(), clang::APValue::isComplexFloat(), clang::APValue::isComplexInt(), clang::QualType::isConstQualified(), isFormalAccess(), clang::APValue::isIndeterminate(), isModification(), isRead(), clang::Type::isRecordType(), clang::TagDecl::isUnion(), isValidIndeterminateAccess(), clang::QualType::isVolatileQualified(), clang::QualType::removeLocalConst(), clang::QualType::removeLocalVolatile(), clang::APValue::setUnion(), and truncateBitfieldValue().
Referenced by checkDynamicType(), extractSubobject(), handleCompoundAssignment(), HandleDestruction(), handleIncDec(), MaybeHandleUnionActiveMemberChange(), and modifySubobject().
◆ getActiveRoundingMode()
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Get rounding mode to use in evaluation of the specified expression.
If rounding mode is unknown at compile time, still try to evaluate the expression. If the result is exact, it does not depend on rounding mode. So return "tonearest" mode instead of "dynamic".
Definition at line 2765 of file ExprConstant.cpp.
References clang::Expr::getFPFeaturesInEffect(), clang::ASTContext::getLangOpts(), and clang::FPOptions::getRoundingMode().
Referenced by handleFloatFloatBinOp(), HandleFloatToFloatCast(), and HandleIntToFloatCast().
◆ getAlignmentArgument()
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Evaluate the value of the alignment argument to __builtin_align_{up,down}, __builtin_is_aligned and __builtin_assume_aligned.
Definition at line 9954 of file ExprConstant.cpp.
References EvaluateInteger(), and clang::ASTContext::getIntWidth().
Referenced by getBuiltinAlignArguments().
◆ GetAlignOfExpr()
| CharUnits GetAlignOfExpr | ( | const ASTContext & | Ctx, |
| const Expr * | E, | ||
| UnaryExprOrTypeTrait | ExprKind ) |
Definition at line 9923 of file ExprConstant.cpp.
References GetAlignOfType(), clang::ASTContext::getDeclAlign(), clang::Expr::getType(), and clang::Expr::IgnoreParens().
Referenced by getBaseAlignment(), and clang::interp::interp__builtin_assume_aligned().
◆ GetAlignOfType()
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Definition at line 9898 of file ExprConstant.cpp.
References clang::ASTContext::getLangOpts(), clang::ASTContext::getPreferredTypeAlign(), clang::ASTContext::getTypeAlignInChars(), clang::CharUnits::One(), clang::T, and clang::ASTContext::toCharUnitsFromBits().
Referenced by GetAlignOfExpr(), and getBaseAlignment().
◆ getBaseAlignment()
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Definition at line 9944 of file ExprConstant.cpp.
References GetAlignOfExpr(), GetAlignOfType(), and clang::ASTContext::getDeclAlign().
◆ getBaseClassType()
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Definition at line 6172 of file ExprConstant.cpp.
Referenced by ComputeDynamicType(), HandleDynamicCast(), and HandleVirtualDispatch().
◆ getBaseIndex()
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Get the base index of the given base class within an APValue representing the given derived class.
Definition at line 3625 of file ExprConstant.cpp.
References clang::CXXRecordDecl::bases_begin(), and clang::CXXRecordDecl::bases_end().
Referenced by findSubobject().
◆ getBuiltinAlignArguments()
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Definition at line 13562 of file ExprConstant.cpp.
References clang::APValue, EvaluateInteger(), EvaluatePointer(), getAlignmentArgument(), clang::CallExpr::getArg(), clang::Expr::getType(), clang::APValue::hasValue(), clang::Type::isIntegralOrEnumerationType(), and clang::Type::isPointerType().
◆ getBytesReturnedByAllocSizeCall()
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Convenience function. LVal's base must be a call to an alloc_size function.
Definition at line 9481 of file ExprConstant.cpp.
Referenced by determineEndOffset().
◆ GetLValueBaseAsString()
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Definition at line 2136 of file ExprConstant.cpp.
References LValueBaseString::Bytes, LValueBaseString::CharWidth, clang::APValue::LValueBase::dyn_cast(), clang::ASTContext::getObjCEncodingForType(), and LValueBaseString::ObjCEncodeStorage.
Referenced by ArePotentiallyOverlappingStringLiterals().
◆ GetLValueBaseDecl()
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Definition at line 2124 of file ExprConstant.cpp.
References clang::APValue::LValueBase::dyn_cast().
Referenced by IsWeakLValue(), and isZeroSized().
◆ getObjectType()
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Retrieves the "underlying object type" of the given expression, as used by __builtin_object_size.
Definition at line 13207 of file ExprConstant.cpp.
References clang::APValue::LValueBase::dyn_cast(), clang::APValue::LValueBase::getDynamicAllocType(), clang::Expr::getType(), clang::ValueDecl::getType(), clang::APValue::LValueBase::getTypeInfoType(), clang::APValue::LValueBase::is(), and clang::isa().
Referenced by clang::SemaObjC::checkInitMethod(), determineEndOffset(), clang::ObjCObjectPointerType::getInterfaceDecl(), clang::ObjCObjectPointerType::getNumProtocols(), clang::ObjCObjectPointerType::getProtocol(), clang::ObjCObjectPointerType::getTypeArgs(), clang::ObjCObjectPointerType::getTypeArgsAsWritten(), clang::ObjCObjectPointerType::isKindOfType(), clang::ObjCObjectPointerType::isObjCClassType(), clang::ObjCObjectPointerType::isObjCIdOrClassType(), clang::ObjCObjectPointerType::isObjCIdType(), clang::ObjCObjectPointerType::isObjCQualifiedClassType(), clang::ObjCObjectPointerType::isObjCQualifiedIdType(), clang::ObjCObjectPointerType::isSpecialized(), clang::ObjCObjectPointerType::isSpecializedAsWritten(), clang::ObjCObjectPointerType::isUnspecialized(), clang::ObjCObjectPointerType::qual_begin(), clang::ObjCObjectPointerType::qual_empty(), and clang::ObjCObjectPointerType::qual_end().
◆ getSubobjectType()
Definition at line 3863 of file ExprConstant.cpp.
References clang::QualType::addConst(), clang::QualType::addVolatile(), clang::QualType::isConstQualified(), and clang::QualType::isVolatileQualified().
Referenced by findSubobject().
◆ getVirtualOperatorDelete()
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Definition at line 7280 of file ExprConstant.cpp.
References clang::T.
Referenced by clang::interp::Free().
◆ handleAssignment()
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Perform an assignment of Val to LVal. Takes ownership of Val.
Definition at line 4639 of file ExprConstant.cpp.
References clang::AK_Assign, findCompleteObject(), and modifySubobject().
Referenced by HandleFunctionCall().
◆ HandleBaseToDerivedCast()
HandleBaseToDerivedCast - Apply the given base-to-derived cast operation on the provided lvalue, which currently refers to the base object.
Definition at line 5102 of file ExprConstant.cpp.
References CastToDerivedClass(), clang::CSK_Derived, clang::Type::getAs(), clang::Type::getAsCXXRecordDecl(), clang::CXXRecordDecl::getCanonicalDecl(), clang::Type::getPointeeType(), clang::Expr::getType(), and clang::CastExpr::path_size().
◆ HandleClassZeroInitialization()
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Perform zero-initialization on an object of non-union class type. C++11 [dcl.init]p5: To zero-initialize an object or reference of type T means: [...] – if T is a (possibly cv-qualified) non-union class type, each non-static data member and each base-class subobject is zero-initialized.
Definition at line 10748 of file ExprConstant.cpp.
References clang::APValue, clang::CXXRecordDecl::bases_begin(), clang::CXXRecordDecl::bases_end(), EvaluateInPlace(), clang::RecordDecl::field_begin(), clang::RecordDecl::field_end(), clang::RecordDecl::fields(), clang::ASTContext::getASTRecordLayout(), clang::CXXRecordDecl::getNumBases(), HandleClassZeroInitialization(), HandleLValueDirectBase(), HandleLValueMember(), clang::Decl::isInvalidDecl(), and clang::TagDecl::isUnion().
Referenced by HandleClassZeroInitialization().
◆ handleCompareOpForVector()
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Definition at line 3132 of file ExprConstant.cpp.
References clang::APValue::Float, clang::APValue::getFloat(), clang::APValue::getInt(), clang::APValue::getKind(), handleCompareOpForVectorHelper(), and clang::APValue::Int.
Referenced by handleVectorVectorBinOp().
◆ handleCompareOpForVectorHelper()
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Definition at line 3099 of file ExprConstant.cpp.
Referenced by handleCompareOpForVector().
◆ HandleComplexComplexDiv()
| void HandleComplexComplexDiv | ( | APFloat | A, |
| APFloat | B, | ||
| APFloat | C, | ||
| APFloat | D, | ||
| APFloat & | ResR, | ||
| APFloat & | ResI ) |
Definition at line 16905 of file ExprConstant.cpp.
References abs(), clang::C, ilogb, and scalbn.
Referenced by clang::interp::Divc().
◆ HandleComplexComplexMul()
| void HandleComplexComplexMul | ( | APFloat | A, |
| APFloat | B, | ||
| APFloat | C, | ||
| APFloat | D, | ||
| APFloat & | ResR, | ||
| APFloat & | ResI ) |
Definition at line 16849 of file ExprConstant.cpp.
References clang::C.
Referenced by clang::interp::Mulc().
◆ handleCompoundAssignment()
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Perform a compound assignment of LVal <op>= RVal.
Definition at line 4783 of file ExprConstant.cpp.
References clang::AK_Assign, findCompleteObject(), and findSubobject().
◆ HandleConstructorCall() [1/2]
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Definition at line 6975 of file ExprConstant.cpp.
References clang::Call, clang::Definition, EvaluateArgs(), and HandleConstructorCall().
◆ HandleConstructorCall() [2/2]
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Evaluate a constructor call.
Definition at line 6751 of file ExprConstant.cpp.
References clang::APValue, clang::CXXRecordDecl::bases_begin(), clang::C, clang::Call, clang::cast(), clang::declaresSameEntity(), clang::Definition, EvaluateDependentExpr(), EvaluateInitForDeclOfReferenceType(), EvaluateInPlace(), EvaluateStmt(), clang::RecordDecl::field_begin(), clang::RecordDecl::field_end(), clang::ASTContext::getASTRecordLayout(), clang::ASTContext::getCanonicalTagType(), clang::Expr::getExprLoc(), clang::FieldDecl::getFieldIndex(), clang::CXXRecordDecl::getNumBases(), clang::CXXRecordDecl::getNumVBases(), clang::FieldDecl::getParent(), clang::Stmt::getSourceRange(), clang::CXXBaseSpecifier::getType(), clang::ValueDecl::getType(), handleDefaultInitValue(), HandleLValueDirectBase(), HandleLValueMember(), handleTrivialCopy(), clang::ASTContext::hasSameUnqualifiedType(), clang::Value::hasValue(), clang::Init, clang::isa(), clang::FieldDecl::isBitField(), clang::Type::isFunctionReferenceType(), clang::Decl::isInvalidDecl(), isReadByLvalueToRvalueConversion(), clang::Type::isReferenceType(), clang::TagDecl::isUnion(), clang::CXXBaseSpecifier::isVirtual(), clang::Success, and truncateBitfieldValue().
Referenced by HandleConstructorCall(), and clang::Expr::isPotentialConstantExpr().
◆ HandleConversionToBool()
Definition at line 2685 of file ExprConstant.cpp.
References clang::APValue::AddrLabelDiff, clang::APValue::Array, clang::APValue::ComplexFloat, clang::APValue::ComplexInt, EvalPointerValueAsBool(), clang::APValue::FixedPoint, clang::APValue::Float, clang::APValue::getComplexFloatImag(), clang::APValue::getComplexFloatReal(), clang::APValue::getComplexIntImag(), clang::APValue::getComplexIntReal(), clang::APValue::getFixedPoint(), clang::APValue::getFloat(), clang::APValue::getInt(), clang::APValue::getKind(), clang::APValue::getMemberPointerDecl(), clang::APValue::Indeterminate, clang::APValue::Int, clang::ValueDecl::isWeak(), clang::APValue::LValue, clang::APValue::MemberPointer, clang::APValue::None, clang::APValue::Struct, clang::APValue::Union, and clang::APValue::Vector.
Referenced by clang::Expr::EvaluateAsBooleanCondition(), and EvaluateAsBooleanCondition().
◆ HandleCovariantReturnAdjustment()
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Perform the adjustment from a value returned by a virtual function to a value of the statically expected type, which may be a pointer or reference to a base class of the returned type.
Definition at line 6308 of file ExprConstant.cpp.
References CastToBaseClass().
◆ handleDefaultInitValue()
Get the value to use for a default-initialized object of type T.
Return false if it encounters something invalid.
Definition at line 5143 of file ExprConstant.cpp.
References clang::APValue, handleDefaultInitValue(), clang::APValue::IndeterminateValue(), clang::Success, and clang::T.
Referenced by clang::VarDecl::evaluateDestruction(), EvaluateVarDecl(), HandleConstructorCall(), and handleDefaultInitValue().
◆ HandleDestruction() [1/2]
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Perform a destructor or pseudo-destructor call on the given object, which might in general not be a complete object.
Definition at line 7189 of file ExprConstant.cpp.
References clang::AK_Destroy, findCompleteObject(), and findSubobject().
Referenced by EvaluateDestruction().
◆ HandleDestruction() [2/2]
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Destroy and end the lifetime of the given complete object.
Definition at line 7197 of file ExprConstant.cpp.
References HandleDestructionImpl(), clang::Expr::EvalStatus::HasSideEffects, and clang::T.
◆ HandleDestructionImpl()
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Definition at line 6988 of file ExprConstant.cpp.
References clang::APValue, clang::CXXRecordDecl::bases(), CheckArraySize(), CheckConstexprFunction(), clang::Definition, EvaluateStmt(), expandArray(), clang::RecordDecl::fields(), clang::ASTContext::getAsConstantArrayType(), clang::APValue::getAsString(), clang::ASTContext::getASTRecordLayout(), clang::SourceRange::getBegin(), clang::FunctionDecl::getBody(), clang::CXXRecordDecl::getDestructor(), clang::ArrayType::getElementType(), clang::ASTContext::getLValueReferenceType(), clang::CXXRecordDecl::getNumBases(), clang::CXXRecordDecl::getNumVBases(), clang::ConstantArrayType::getZExtSize(), HandleDestructionImpl(), HandleLValueArrayAdjustment(), HandleLValueDirectBase(), HandleLValueMember(), clang::CXXRecordDecl::hasTrivialDestructor(), clang::ASTContext::IntTy, clang::RecordDecl::isAnonymousStructOrUnion(), clang::FunctionDecl::isTrivial(), clang::TagDecl::isUnion(), clang::T, and clang::VK_PRValue.
Referenced by HandleDestruction(), and HandleDestructionImpl().
◆ HandleDynamicCast()
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Apply the given dynamic cast operation on the provided lvalue.
This implements the hard case of dynamic_cast, requiring a "runtime check" to find a suitable target subobject.
Definition at line 6349 of file ExprConstant.cpp.
References clang::CXXBasePath::Access, clang::AK_DynamicCast, clang::AS_public, clang::C, CastToDerivedClass(), ComputeDynamicType(), clang::declaresSameEntity(), clang::CXXBasePaths::front(), getBaseClassType(), clang::ASTContext::getCanonicalTagType(), clang::Type::getPointeeCXXRecordDecl(), clang::Expr::getType(), clang::ExplicitCastExpr::getTypeAsWritten(), clang::QualType::getUnqualifiedType(), HandleLValueBase(), clang::CXXBasePaths::isAmbiguous(), isBaseClassPublic(), clang::Expr::isGLValue(), and clang::Type::isVoidPointerType().
◆ handleFloatFloatBinOp()
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Perform the given binary floating-point operation, in-place, on LHS.
Definition at line 3021 of file ExprConstant.cpp.
References checkFloatingPointResult(), and getActiveRoundingMode().
Referenced by handleVectorVectorBinOp().
◆ HandleFloatToFloatCast()
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Definition at line 2814 of file ExprConstant.cpp.
References checkFloatingPointResult(), getActiveRoundingMode(), clang::ASTContext::getFloatTypeSemantics(), and clang::isa().
Referenced by handleVectorElementCast().
◆ HandleFloatToIntCast()
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Definition at line 2745 of file ExprConstant.cpp.
References clang::ASTContext::getIntWidth(), HandleOverflow(), and clang::Type::isSignedIntegerOrEnumerationType().
Referenced by handleVectorElementCast().
◆ HandleFunctionCall()
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Evaluate a function call.
Definition at line 6691 of file ExprConstant.cpp.
References clang::Call, EvaluateStmt(), clang::CXXRecordDecl::getCaptureFields(), clang::CXXMethodDecl::getFunctionObjectParameterReferenceType(), clang::FunctionDecl::getParamDecl(), clang::CXXMethodDecl::getParent(), clang::Stmt::getSourceRange(), handleAssignment(), handleTrivialCopy(), clang::CXXMethodDecl::isCopyAssignmentOperator(), clang::FunctionDecl::isDefaulted(), clang::CXXMethodDecl::isExplicitObjectMemberFunction(), clang::isLambdaCallOperator(), clang::CXXMethodDecl::isMoveAssignmentOperator(), isReadByLvalueToRvalueConversion(), clang::FunctionDecl::isTrivial(), and clang::TagDecl::isUnion().
Referenced by clang::Expr::isPotentialConstantExpr().
◆ handleIncDec()
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Perform an increment or decrement on LVal.
Definition at line 4933 of file ExprConstant.cpp.
References clang::AK_Decrement, clang::AK_Increment, clang::cast(), findCompleteObject(), and findSubobject().
◆ handleIntIntBinOp()
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Perform the given binary integer operation.
Definition at line 2902 of file ExprConstant.cpp.
References CheckedIntArithmetic(), clang::BinaryOperator::getRHS(), clang::Stmt::getSourceRange(), clang::Expr::getType(), and HandleOverflow().
Referenced by handleVectorVectorBinOp().
◆ HandleIntToFloatCast()
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Definition at line 2843 of file ExprConstant.cpp.
References checkFloatingPointResult(), getActiveRoundingMode(), and clang::ASTContext::getFloatTypeSemantics().
Referenced by handleVectorElementCast().
◆ HandleIntToIntCast()
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Definition at line 2830 of file ExprConstant.cpp.
References clang::ASTContext::getIntWidth(), clang::Type::isBooleanType(), and clang::Type::isUnsignedIntegerOrEnumerationType().
Referenced by handleVectorElementCast().
◆ HandleLambdaCapture()
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Get an lvalue to a field of a lambda's closure type.
Definition at line 8986 of file ExprConstant.cpp.
References clang::APValue::allowConstexprUnknown(), clang::FunctionDecl::getParamDecl(), clang::ValueDecl::getType(), HandleLValueMember(), handleLValueToRValueConversion(), clang::APValue::hasValue(), clang::CXXMethodDecl::isExplicitObjectMemberFunction(), clang::CXXMethodDecl::isStatic(), and clang::Self.
◆ handleLogicalOpForVector() [1/3]
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Definition at line 3072 of file ExprConstant.cpp.
◆ handleLogicalOpForVector() [2/3]
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Definition at line 3060 of file ExprConstant.cpp.
Referenced by handleLogicalOpForVector(), and handleVectorVectorBinOp().
◆ handleLogicalOpForVector() [3/3]
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Definition at line 3085 of file ExprConstant.cpp.
References clang::APValue::Float, clang::APValue::getFloat(), clang::APValue::getInt(), clang::APValue::getKind(), handleLogicalOpForVector(), and clang::APValue::Int.
◆ HandleLValueArrayAdjustment() [1/2]
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Update a pointer value to model pointer arithmetic.
- Parameters
-
Info - Information about the ongoing evaluation. E - The expression being evaluated, for diagnostic purposes. LVal - The pointer value to be updated. EltTy - The pointee type represented by LVal. Adjustment - The adjustment, in objects of type EltTy, to add.
Definition at line 3382 of file ExprConstant.cpp.
References clang::Expr::getExprLoc(), and HandleSizeof().
Referenced by EvaluateBuiltinStrLen(), EvaluateCharRangeAsStringImpl(), HandleDestructionImpl(), and HandleLValueArrayAdjustment().
◆ HandleLValueArrayAdjustment() [2/2]
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Definition at line 3393 of file ExprConstant.cpp.
References HandleLValueArrayAdjustment().
◆ HandleLValueBase()
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Definition at line 3259 of file ExprConstant.cpp.
References CastToDerivedClass(), clang::Type::getAsCXXRecordDecl(), clang::ASTContext::getASTRecordLayout(), clang::QualType::getNonReferenceType(), clang::ASTRecordLayout::getVBaseClassOffset(), HandleLValueDirectBase(), and clang::Decl::isInvalidDecl().
Referenced by CastToBaseClass(), HandleDynamicCast(), and HandleLValueBasePath().
◆ HandleLValueBasePath()
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Definition at line 3288 of file ExprConstant.cpp.
References clang::Type::getAsCXXRecordDecl(), HandleLValueBase(), clang::CastExpr::path_begin(), and clang::CastExpr::path_end().
◆ HandleLValueComplexElement()
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Update an lvalue to refer to a component of a complex number.
- Parameters
-
Info - Information about the ongoing evaluation. LVal - The lvalue to be updated. EltTy - The complex number's component type. Imag - False for the real component, true for the imaginary.
Definition at line 3405 of file ExprConstant.cpp.
References clang::Expr::getExprLoc(), and HandleSizeof().
◆ HandleLValueDirectBase()
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Definition at line 3245 of file ExprConstant.cpp.
References clang::ASTContext::getASTRecordLayout(), and clang::Decl::isInvalidDecl().
Referenced by HandleClassZeroInitialization(), HandleConstructorCall(), HandleDestructionImpl(), HandleLValueBase(), and HandleMemberPointerAccess().
◆ HandleLValueIndirectMember()
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Update LVal to refer to the given indirect field.
Definition at line 3333 of file ExprConstant.cpp.
References clang::C, clang::cast(), clang::IndirectFieldDecl::chain(), and HandleLValueMember().
Referenced by HandleMemberPointerAccess().
◆ HandleLValueMember()
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Update LVal to refer to the given field, which must be a member of the type currently described by LVal.
Definition at line 3318 of file ExprConstant.cpp.
References clang::ASTContext::getASTRecordLayout(), clang::FieldDecl::getFieldIndex(), clang::FieldDecl::getParent(), clang::Decl::isInvalidDecl(), and clang::ASTContext::toCharUnitsFromBits().
Referenced by HandleClassZeroInitialization(), HandleConstructorCall(), HandleDestructionImpl(), HandleLambdaCapture(), HandleLValueIndirectMember(), and HandleMemberPointerAccess().
◆ handleLValueToRValueConversion()
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Perform an lvalue-to-rvalue conversion on the given glvalue.
This can also be used for 'lvalue-to-lvalue' conversions for looking up the glvalue referred to by an entity of reference type.
- Parameters
-
Info - Information about the ongoing evaluation. Conv - The expression for which we are performing the conversion. Used for diagnostics. Type - The type of the glvalue (before stripping cv-qualifiers in the case of a non-class type). LVal - The glvalue on which we are attempting to perform this action. RVal - The produced value will be placed here. WantObjectRepresentation - If true, we're looking for the object representation rather than the value, and in particular, there is no requirement that the result be fully initialized.
Definition at line 4596 of file ExprConstant.cpp.
References clang::AK_Read, clang::AK_ReadObjectRepresentation, clang::APValue, clang::APValue::LValueBase::dyn_cast(), extractStringLiteralCharacter(), extractSubobject(), findCompleteObject(), and clang::isa().
Referenced by EvaluateAsRValue(), EvaluateBuiltinStrLen(), EvaluateCharRangeAsStringImpl(), HandleLambdaCapture(), and handleTrivialCopy().
◆ HandleLValueVectorElement()
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Definition at line 3418 of file ExprConstant.cpp.
References clang::Expr::getExprLoc(), and HandleSizeof().
◆ HandleMemberPointerAccess() [1/2]
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Definition at line 5082 of file ExprConstant.cpp.
References EvaluateMemberPointer(), EvaluateObjectArgument(), clang::BinaryOperator::getLHS(), clang::BinaryOperator::getOpcode(), clang::BinaryOperator::getRHS(), clang::Expr::getType(), and HandleMemberPointerAccess().
◆ HandleMemberPointerAccess() [2/2]
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HandleMemberPointerAccess - Evaluate a member access operation and build an lvalue referring to the result.
- Parameters
-
Info - Information about the ongoing evaluation. LV - An lvalue referring to the base of the member pointer. RHS - The member pointer expression. IncludeMember - Specifies whether the member itself is included in the resulting LValue subobject designator. This is not possible when creating a bound member function.
- Returns
- The field or method declaration to which the member pointer refers, or 0 if evaluation fails.
Definition at line 4979 of file ExprConstant.cpp.
References CastToDerivedClass(), EvaluateMemberPointer(), clang::Type::getAs(), clang::Type::getAsCXXRecordDecl(), clang::CXXRecordDecl::getCanonicalDecl(), clang::Type::getPointeeType(), HandleLValueDirectBase(), HandleLValueIndirectMember(), and HandleLValueMember().
Referenced by HandleMemberPointerAccess().
◆ HandleOperatorDeleteCall()
Definition at line 7340 of file ExprConstant.cpp.
References CheckDeleteKind(), EvaluateIgnoredValue(), EvaluatePointer(), clang::CallExpr::getArg(), clang::Expr::getExprLoc(), clang::CallExpr::getNumArgs(), and Pointer.
◆ HandleOperatorNewCall()
Perform a call to 'operator new' or to ‘__builtin_operator_new’.
Definition at line 7211 of file ExprConstant.cpp.
References clang::APValue, clang::cast(), EvaluateIgnoredValue(), EvaluateInteger(), clang::CallExpr::getArg(), clang::CallExpr::getBeginLoc(), clang::ASTContext::getConstantArrayType(), clang::Expr::getExprLoc(), clang::CallExpr::getNumArgs(), clang::CharUnits::getQuantity(), clang::Expr::getType(), HandleSizeof(), clang::Type::isFunctionType(), clang::Type::isIncompleteType(), clang::Type::isNothrowT(), and clang::Normal.
◆ HandleOverflow()
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Definition at line 2738 of file ExprConstant.cpp.
References clang::T.
Referenced by CheckedIntArithmetic(), HandleFloatToIntCast(), and handleIntIntBinOp().
◆ HandleSizeof()
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Get the size of the given type in char units.
Definition at line 3348 of file ExprConstant.cpp.
References clang::ASTContext::getTypeInfoDataSizeInChars(), clang::ASTContext::getTypeSizeInChars(), clang::Type::isConstantSizeType(), clang::Type::isDependentType(), clang::Type::isFunctionType(), clang::Type::isVoidType(), clang::CharUnits::One(), SizeOf, and clang::TypeInfoChars::Width.
Referenced by determineEndOffset(), HandleLValueArrayAdjustment(), HandleLValueComplexElement(), HandleLValueVectorElement(), and HandleOperatorNewCall().
◆ handleTrivialCopy()
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Perform a trivial copy from Param, which is the parameter of a copy or move constructor or assignment operator.
Definition at line 6671 of file ExprConstant.cpp.
References clang::QualType::getNonReferenceType(), clang::Expr::getType(), and handleLValueToRValueConversion().
Referenced by HandleConstructorCall(), and HandleFunctionCall().
◆ handleVectorElementCast()
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Definition at line 11545 of file ExprConstant.cpp.
References clang::APValue, HandleFloatToFloatCast(), HandleFloatToIntCast(), HandleIntToFloatCast(), HandleIntToIntCast(), clang::Type::isIntegerType(), and clang::Type::isRealFloatingType().
◆ handleVectorShuffle()
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Definition at line 12204 of file ExprConstant.cpp.
References clang::ShuffleVectorExpr::getShuffleMaskIdx(), clang::APValue::getVectorElt(), and clang::APValue::getVectorLength().
◆ handleVectorUnaryOperator()
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Definition at line 11459 of file ExprConstant.cpp.
References clang::APValue::Float, clang::APValue::getFloat(), clang::APValue::getInt(), clang::ASTContext::getIntWidth(), clang::APValue::getKind(), clang::APValue::Int, and clang::Type::isUnsignedIntegerType().
◆ handleVectorVectorBinOp()
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Definition at line 3145 of file ExprConstant.cpp.
References clang::APValue, clang::Type::castAs(), clang::APValue::Float, clang::APValue::getFloat(), clang::APValue::getInt(), clang::ASTContext::getIntWidth(), clang::APValue::getKind(), clang::VectorType::getNumElements(), clang::Expr::getType(), clang::APValue::getVectorElt(), clang::APValue::getVectorLength(), handleCompareOpForVector(), handleFloatFloatBinOp(), handleIntIntBinOp(), handleLogicalOpForVector(), clang::BinaryOperator::isComparisonOp(), clang::Type::isFloatingType(), clang::Type::isIntegerType(), clang::BinaryOperator::isLogicalOp(), clang::APValue::isLValue(), clang::Type::isUnsignedIntegerType(), clang::APValue::isVector(), and clang::Success.
◆ HandleVirtualDispatch()
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Perform virtual dispatch.
Definition at line 6243 of file ExprConstant.cpp.
References clang::AK_Destroy, clang::AK_MemberCall, CastToDerivedClass(), ComputeDynamicType(), clang::Found, getBaseClassType(), clang::ASTContext::hasSameUnqualifiedType(), clang::isa(), and Next.
◆ HasSameBase()
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Definition at line 2236 of file ExprConstant.cpp.
Referenced by EvaluateComparisonBinaryOperator().
◆ hasUnacceptableSideEffect()
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Definition at line 17564 of file ExprConstant.cpp.
References clang::Expr::SE_AllowSideEffects, and clang::Expr::SE_AllowUndefinedBehavior.
Referenced by EvaluateAsFixedPoint(), clang::Expr::EvaluateAsFloat(), EvaluateAsInt(), and clang::Expr::isEvaluatable().
◆ hasVirtualDestructor()
Definition at line 7273 of file ExprConstant.cpp.
References clang::T.
◆ ignorePointerCastsAndParens()
A more selective version of E->IgnoreParenCasts for tryEvaluateBuiltinObjectSize. This ignores some casts/parens that serve only to change the type of E. Ex. For E = (short*)((char*)(&foo)), returns &foo
Always returns an RValue with a pointer representation.
Definition at line 13229 of file ExprConstant.cpp.
References clang::Expr::getType(), clang::Type::hasPointerRepresentation(), clang::Expr::IgnoreParens(), ignorePointerCastsAndParens(), and clang::Expr::isPRValue().
Referenced by ignorePointerCastsAndParens(), and tryEvaluateBuiltinObjectSize().
◆ isAnyAccess()
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Definition at line 1465 of file ExprConstant.cpp.
References isModification(), and isRead().
Referenced by findCompleteObject(), and isFormalAccess().
◆ isBaseClassPublic()
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Determine whether Base, which is known to be a direct base class of Derived, is a public base class.
Definition at line 6335 of file ExprConstant.cpp.
References clang::AS_public, clang::CXXRecordDecl::bases(), and clang::declaresSameEntity().
Referenced by HandleDynamicCast().
◆ IsDeclSourceLocationCurrent()
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Definition at line 9708 of file ExprConstant.cpp.
References clang::NamedDecl::getIdentifier(), clang::DeclContext::getParent(), clang::Decl::isInStdNamespace(), and clang::IdentifierInfo::isStr().
◆ isDesignatorAtObjectEnd()
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Checks to see if the given LValue's Designator is at the end of the LValue's record layout. e.g. struct { struct { int a, b; } fst, snd; } obj; obj.fst // no obj.snd // yes obj.fst.a // no obj.fst.b // no obj.snd.a // no obj.snd.b // yes.
Please note: this function is specialized for how __builtin_object_size views "objects".
If this encounters an invalid RecordDecl or otherwise cannot determine the correct result, it will always return true.
Definition at line 13265 of file ExprConstant.cpp.
References clang::cast(), clang::Type::castAs(), clang::ASTContext::getAsArrayType(), clang::ASTContext::getASTRecordLayout(), clang::ArrayType::getElementType(), clang::ComplexType::getElementType(), clang::ASTRecordLayout::getFieldCount(), clang::CXXMethodDecl::getParent(), getPointeeType(), clang::ValueDecl::getType(), getType(), clang::ConstantArrayType::getZExtSize(), clang::Decl::isInvalidDecl(), and clang::TagDecl::isUnion().
Referenced by isUserWritingOffTheEnd().
◆ isFormalAccess()
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Is this an access per the C++ definition?
Definition at line 1470 of file ExprConstant.cpp.
References clang::AK_Construct, clang::AK_Dereference, clang::AK_Destroy, clang::AK_IsWithinLifetime, and isAnyAccess().
Referenced by findCompleteObject(), and findSubobject().
◆ IsGlobalLValue()
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Definition at line 2056 of file ExprConstant.cpp.
References clang::cast(), clang::APValue::LValueBase::dyn_cast(), clang::APValue::LValueBase::get(), clang::Stmt::getStmtClass(), clang::APValue::LValueBase::is(), clang::isa(), clang::CompoundLiteralExpr::isFileScope(), clang::Expr::isLValue(), IsOpaqueConstantCall(), and clang::SD_Static.
Referenced by CheckLValueConstantExpression(), and clang::Expr::EvalResult::isGlobalLValue().
◆ isModification()
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Definition at line 1445 of file ExprConstant.cpp.
References clang::AK_Assign, clang::AK_Construct, clang::AK_Decrement, clang::AK_Dereference, clang::AK_Destroy, clang::AK_DynamicCast, clang::AK_Increment, clang::AK_IsWithinLifetime, clang::AK_MemberCall, clang::AK_Read, clang::AK_ReadObjectRepresentation, and clang::AK_TypeId.
Referenced by findCompleteObject(), findSubobject(), and isAnyAccess().
◆ isOneByteCharacterType()
Definition at line 10002 of file ExprConstant.cpp.
References clang::T.
Referenced by clang::interp::interp__builtin_memchr().
◆ isOnePastTheEndOfCompleteObject()
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Determine whether this is a pointer past the end of the complete object referred to by the lvalue.
Definition at line 14695 of file ExprConstant.cpp.
References getType(), clang::ASTContext::getTypeSizeInChars(), and clang::Type::isIncompleteType().
Referenced by EvaluateComparisonBinaryOperator().
◆ IsOpaqueConstantCall() [1/2]
Should this call expression be treated as forming an opaque constant?
Definition at line 2042 of file ExprConstant.cpp.
References clang::CallExpr::getBuiltinCallee().
Referenced by EvaluateComparisonBinaryOperator(), IsGlobalLValue(), and IsOpaqueConstantCall().
◆ IsOpaqueConstantCall() [2/2]
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Definition at line 2050 of file ExprConstant.cpp.
References clang::APValue::LValueBase::dyn_cast(), and IsOpaqueConstantCall().
◆ isRead()
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Definition at line 1440 of file ExprConstant.cpp.
References clang::AK_Dereference, clang::AK_IsWithinLifetime, clang::AK_Read, and clang::AK_ReadObjectRepresentation.
Referenced by findSubobject(), and isAnyAccess().
◆ isReadByLvalueToRvalueConversion() [1/2]
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Determine whether a type would actually be read by an lvalue-to-rvalue conversion.
If it's of class type, we may assume that the copy operation is trivial. Note that this is never true for a union type with fields (because the copy always "reads" the active member) and always true for a non-class type.
Definition at line 3724 of file ExprConstant.cpp.
References clang::CXXRecordDecl::bases(), clang::RecordDecl::field_empty(), clang::RecordDecl::fields(), clang::CXXRecordDecl::isEmpty(), isReadByLvalueToRvalueConversion(), and clang::TagDecl::isUnion().
Referenced by diagnoseMutableFields(), HandleConstructorCall(), HandleFunctionCall(), isReadByLvalueToRvalueConversion(), and isReadByLvalueToRvalueConversion().
◆ isReadByLvalueToRvalueConversion() [2/2]
Definition at line 3720 of file ExprConstant.cpp.
References isReadByLvalueToRvalueConversion(), and clang::T.
◆ isUserWritingOffTheEnd()
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Attempts to detect a user writing into a piece of memory that's impossible to figure out the size of by just using types.
Definition at line 13353 of file ExprConstant.cpp.
References clang::ASTContext::getLangOpts(), and isDesignatorAtObjectEnd().
Referenced by determineEndOffset(), and clang::interp::interp__builtin_object_size().
◆ isValidIndeterminateAccess()
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Is this kind of access valid on an indeterminate object value?
Definition at line 1476 of file ExprConstant.cpp.
References clang::AK_Assign, clang::AK_Construct, clang::AK_Decrement, clang::AK_Dereference, clang::AK_Destroy, clang::AK_DynamicCast, clang::AK_Increment, clang::AK_IsWithinLifetime, clang::AK_MemberCall, clang::AK_Read, clang::AK_ReadObjectRepresentation, and clang::AK_TypeId.
Referenced by findSubobject().
◆ IsWeakLValue()
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Definition at line 2220 of file ExprConstant.cpp.
References GetLValueBaseDecl().
Referenced by EvaluateComparisonBinaryOperator().
◆ isZeroSized()
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Definition at line 2225 of file ExprConstant.cpp.
References clang::Decl::getASTContext(), GetLValueBaseDecl(), clang::ASTContext::getTypeSize(), clang::Type::isArrayType(), and clang::Type::isIncompleteType().
Referenced by EvaluateComparisonBinaryOperator().
◆ lifetimeStartedInEvaluation()
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Definition at line 3779 of file ExprConstant.cpp.
References getType(), and clang::T.
Referenced by findCompleteObject().
◆ MaybeElementDependentArrayFiller()
Definition at line 12364 of file ExprConstant.cpp.
References clang::InitListExpr::getNumInits(), clang::isa(), and MaybeElementDependentArrayFiller().
Referenced by MaybeElementDependentArrayFiller().
◆ MaybeEvaluateDeferredVarDeclInit()
Definition at line 5292 of file ExprConstant.cpp.
References EvaluateDecompositionDeclInit().
Referenced by EvaluateCond(), and EvaluateSwitch().
◆ MaybeHandleUnionActiveMemberChange()
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Handle a builtin simple-assignment or a call to a trivial assignment operator whose left-hand side might involve a union member access.
If it does, implicitly start the lifetime of any accessed union elements per C++20 [class.union]5.
Definition at line 6497 of file ExprConstant.cpp.
References clang::AK_Assign, clang::declaresSameEntity(), findCompleteObject(), findSubobject(), clang::UnaryOperator::getSubExpr(), and clang::Expr::getType().
◆ modifySubobject()
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Update the designated sub-object of an rvalue to the given value.
Definition at line 4199 of file ExprConstant.cpp.
References findSubobject().
Referenced by handleAssignment().
◆ negateAsSigned()
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Negate an APSInt in place, converting it to a signed form if necessary, and preserving its value (by extending by up to one bit as needed).
Definition at line 1905 of file ExprConstant.cpp.
◆ NoDiag()
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Definition at line 18006 of file ExprConstant.cpp.
Referenced by CheckEvalInICE(), CheckICE(), and ParseDirective().
◆ NoteLValueLocation()
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Definition at line 2250 of file ExprConstant.cpp.
References clang::Expr::getExprLoc(), clang::ParmVarDecl::getFunctionScopeIndex(), and clang::Decl::getLocation().
Referenced by CheckDeleteKind(), CheckLValueConstantExpression(), evaluateVarDeclInit(), and findCompleteObject().
◆ refersToCompleteObject()
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Tests to see if the LValue has a user-specified designator (that isn't necessarily valid). Note that this always returns 'true' if the LValue has an unsized array as its first designator entry, because there's currently no way to tell if the user typed *foo or foo[0].
Definition at line 13335 of file ExprConstant.cpp.
References clang::APValue::LValueBase::dyn_cast(), and clang::isa().
Referenced by determineEndOffset().
◆ ShouldPropagateBreakContinue()
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Helper to implement named break/continue.
Returns 'true' if the evaluation result should be propagated up. Otherwise, it sets the evaluation result to either Continue to continue the current loop, or Succeeded to break it.
Definition at line 5356 of file ExprConstant.cpp.
References clang::isa().
Referenced by EvaluateStmt(), and EvaluateSwitch().
◆ truncateBitfieldValue()
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Definition at line 2853 of file ExprConstant.cpp.
References clang::FieldDecl::getBitWidthValue(), and clang::FieldDecl::isBitField().
Referenced by findSubobject(), and HandleConstructorCall().
◆ TryEvaluateBuiltinNaN()
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Definition at line 16320 of file ExprConstant.cpp.
References clang::StringLiteral::getString(), and clang::Expr::IgnoreParenCasts().
◆ tryEvaluateBuiltinObjectSize()
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Tries to evaluate the __builtin_object_size for E. If successful, returns true and stores the result in Size.
If WasError is non-null, this will report whether the failure to evaluate is to be treated as an Error in IntExprEvaluator.
Definition at line 13513 of file ExprConstant.cpp.
References determineEndOffset(), EvaluateAsRValue(), EvaluatePointer(), clang::Expr::getExprLoc(), ignorePointerCastsAndParens(), and clang::Expr::isGLValue().
Referenced by clang::Expr::tryEvaluateObjectSize().
◆ Worst()
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Definition at line 18008 of file ExprConstant.cpp.
Referenced by CheckICE().
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