Expr.h revision f89e55ab1bfb3ea997f8b02997c611a02254eb2d
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- Expr.h - Classes for representing expressions ----------*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file defines the Expr interface and subclasses. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_AST_EXPR_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_AST_EXPR_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson#include "clang/AST/APValue.h" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Stmt.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Type.h" 20161755a09898c95d21bfff33707da9ca41cd53c5John McCall#include "clang/AST/DeclAccessPair.h" 215baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall#include "clang/AST/OperationKinds.h" 22709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek#include "clang/AST/ASTVector.h" 23409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#include "clang/AST/UsuallyTinyPtrVector.h" 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/APSInt.h" 25525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner#include "llvm/ADT/APFloat.h" 263b8d116703db8018f855cbb4733ace426422623bNate Begeman#include "llvm/ADT/SmallVector.h" 27b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar#include "llvm/ADT/StringRef.h" 28c5ae899b4bbf65488445316c63168079177db0edSteve Naroff#include <vector> 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 31590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 32c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 33c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 34c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 35c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 368e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 37c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 3856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 39409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson class CXXBaseSpecifier; 4088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 4188a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 42833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall class TemplateArgumentLoc; 43d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall class TemplateArgumentListInfo; 4488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 457ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 46f871d0cc377a1367b519a6cce26be74607566ebaJohn McCalltypedef llvm::SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; 477ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 54898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 55bef0efd11bc4430a3ee437a3213cec5c18af855aChris Lattner virtual void ANCHOR(); // key function. 565baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 578e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCallprotected: 58f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, 59f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall bool TD, bool VD) : Stmt(SC) { 608e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.TypeDependent = TD; 618e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.ValueDependent = VD; 62f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ValueKind = VK; 63f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ObjectKind = OK; 64898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 65898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 66898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 670b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 680b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 690b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 71f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 739d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 749d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 759d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 769d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 779d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 789d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 799d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 80905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 818320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 82f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 849d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 8577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 86898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 87898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 88898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 90898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 91898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 92898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 938e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isValueDependent() const { return ExprBits.ValueDependent; } 94898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 950b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 968e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setValueDependent(bool VD) { ExprBits.ValueDependent = VD; } 970b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 98898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 99898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 105898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 106898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 107898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 1098e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isTypeDependent() const { return ExprBits.TypeDependent; } 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1110b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1128e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setTypeDependent(bool TD) { ExprBits.TypeDependent = TD; } 1130b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 123026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 124026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 125026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 126026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 127026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 128df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 13908ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 14076458501a8963fa11b91c9337a487de6871169b4Sebastian Redl /// - b ? x : y, where x and y are lvalues of suitable types [C++] 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 146fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 14786f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 1482514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 149e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 150e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 15228be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 15353202857c60214d80950a975e6e52aebf30bd16aEli Friedman 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 15944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 16044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 16144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 16244e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 167fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 169ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1724f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1735daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 174ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 17586f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 1762514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 177e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 178e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor MLV_ClassTemporary 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 18044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 18144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 1821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1832111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 1842111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 1852111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 1862111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 1872111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 1882111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 1892111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 1902111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 1912111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 1922111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 1932111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 1942111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 1952111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 1962111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_ClassTemporary, // A prvalue of class type 1972111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 1982111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 1992111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 2002111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 2012111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 2022111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 2032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 2042111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 2052111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 2062111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NotBlockQualified, // Not captured in the closure 2072111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 2082111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 2092111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 2102111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 2112111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2122111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2132111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 2142111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 2152111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 2172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 2182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 2202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 2212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 2222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 2252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 2272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 2282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 2292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 2302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 2322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 2332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 2342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 2352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 2362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 2372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 238369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Classify - Classify this expression according to the C++0x 2392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 2402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x defines ([basic.lval]) a new taxonomy of expressions to replace the 2422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 2432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 2442111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 2452111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 2462111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 2472111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 2482111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 2492111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 2502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 2512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 2522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 254369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief ClassifyModifiable - Classify this expression according to the 2552111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x expression taxonomy, and see if it is valid on the left side 2562111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 2572111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2582111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 2592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 2602111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 2612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 2622111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 2632111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 2642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2652111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 266f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKindForType - Given a formal return or parameter type, 267f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// give its value kind. 268f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static ExprValueKind getValueKindForType(QualType T) { 269f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall if (const ReferenceType *RT = T->getAs<ReferenceType>()) 270f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return isa<LValueReferenceType>(RT) ? VK_LValue : VK_XValue; 271f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return VK_RValue; 272f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 273f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 274f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKind - The value kind that this expression produces. 275f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind getValueKind() const { 276f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprValueKind>(ExprBits.ValueKind); 277f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 278f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 279f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getObjectKind - The object kind that this expression produces. 280f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// Object kinds are meaningful only for expressions that yield an 281f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// l-value or x-value. 282f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprObjectKind getObjectKind() const { 283f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprObjectKind>(ExprBits.ObjectKind); 284f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 285f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 286f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setValueKind - Set the value kind produced by this expression. 287f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setValueKind(ExprValueKind Cat) { ExprBits.ValueKind = Cat; } 288f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 289f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setObjectKind - Set the object kind produced by this expression. 290f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setObjectKind(ExprObjectKind Cat) { ExprBits.ObjectKind = Cat; } 291f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 2922111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 2932111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 2942111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2952111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 2962111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 29733bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 29833bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 29933bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 30138d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 30238d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 30338d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 3041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 305093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 306093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 307c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3082b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 3092b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 3102b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 3112b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 3122b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 313c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 318590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 319590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 321590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 3228070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 323590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 325c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 326c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 3274204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 3281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 33094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 3312d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 33294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 3331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 33594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 33694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 3371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 33994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 34094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 34194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 34294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 34394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 34494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 34594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 34694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 34794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 34894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 3491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 351e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 352e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // isGlobalLValue - Return true if the evaluated lvalue expression 353e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // is global. 354e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool isGlobalLValue() const; 355e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 356e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 357e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 358e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 359e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 36094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 36194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 3626ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 363019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 364019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 365019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 3665b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 3675b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 368cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 369cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 370cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// any crazy technique that we want to. 371cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall bool EvaluateAsBooleanCondition(bool &Result, ASTContext &Ctx) const; 372cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 3736ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 37445b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 37545b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 376c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 3776ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 378138d6a6890c171068ac60430431eaadb3fcef9abGabor Greif /// which must be evaluated each time and must not be optimized away 3796ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 3806ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 381393c247fe025ccb5f914e37e948192ea86faef8cFariborz Jahanian bool HasSideEffects(ASTContext &Ctx) const; 382c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 38351fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 38451fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 38551fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 38651fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 387b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 388b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 3891b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 3901b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 391e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue. 392e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool EvaluateAsAnyLValue(EvalResult &Result, ASTContext &Ctx) const; 393e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 394ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 395ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 396ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 397ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 398ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 399c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 400ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 401ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 402ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 403c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 404ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 405ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 406ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 407ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 408c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 409efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 410efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 411efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 412ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor bool isNullPointerConstant(ASTContext &Ctx, 413ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NullPointerConstantValueDependence NPC) const; 414efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 41544baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 4161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 417102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 4181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41911ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 42011ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 42111ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 422369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Result type of CanThrow(). 423369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl enum CanThrowResult { 424369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Cannot, 425369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Dependent, 426369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Can 427369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl }; 428369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Test if this expression, if evaluated, might throw, according to 429369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// the rules of C++ [expr.unary.noexcept]. 430369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CanThrowResult CanThrow(ASTContext &C) const; 431369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl 4324e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 4331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 4344e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 4354e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 4362b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 43756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 43856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 43927c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 44056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 4411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4422fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 4432fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 4442fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 4452fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 4464d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const Expr *IgnoreParenImpCasts() const { 4474d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 4484d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 4494d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 450ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 451ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 452ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 453ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 4541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4556eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 4566eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 4576eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 458c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 4596eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 4606eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 4616eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 4626eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 463c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 464558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 465558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 466558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 4672f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 4682b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 4694e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 4704e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 47156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 47256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 47356f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 474ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 475ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 476ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 4771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 478898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 479898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 480898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 4811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 4825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 4831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 4845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 4865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 4905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 4915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 493a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 494a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 495a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 496a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The nested name specifier. 497a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *NNS; 498c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 499a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source range covered by the nested name specifier. 500a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange Range; 501a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 502a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 503a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 504a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 505a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 506a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 507a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 508c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 509a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 510a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 511c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 512a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 513a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 514a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 515a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 516c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 517a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 518833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 519833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 520a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 521c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 522a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 523833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 524833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 525a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 526d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 527d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 528d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 5298dfbd8b252ba4e6cf4b7a3422f6ef0ca21312dfeArgyrios Kyrtzidis static std::size_t sizeFor(unsigned NumTemplateArgs); 530d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 531a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 532c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 5345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 5355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 536a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 537c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 538a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 539a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 540c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 541a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 542a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 543a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 544c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 545c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 546a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 547c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 548a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 549dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 5502577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 551a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 5525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 5539e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 5542577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// DNLoc - Provides source/type location info for the 5552577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in DecoratedD. 5562577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 5572577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 558a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 559a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 5602cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 561a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 562c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 563a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 564a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 565c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 566a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 567a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 568a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 569a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 570096832c5ed5b9106fa177ebc148489760c3bc496John McCall 571a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 572dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 573d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 574f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 575663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 5762577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 5772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 5782577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 579f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 5802577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 581663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 582663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 583663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 584c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5850da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 5860da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 5870da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 5889e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 590f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, ExprValueKind VK, SourceLocation l) : 591f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(DeclRefExprClass, t, VK, OK_Ordinary, false, false), 592f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DecoratedD(d, 0), Loc(l) { 5930da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 5940da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 5951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 596a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 597a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 598a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 599dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 600a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 601f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 6020da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 603663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 6042577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 6052577743c5650c646fb705df01403707e94f2df04Abramo Bagnara NestedNameSpecifier *Qualifier, 6062577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceRange QualifierRange, 6072577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 6082577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 609f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 6102577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 6112577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 612663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 613663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 614663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis bool HasQualifier, unsigned NumTemplateArgs); 615c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 616dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 617dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 618dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 619904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 6202577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 6212577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 6222577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 6232577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 6249e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 6250b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 626a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor virtual SourceRange getSourceRange() const; 6271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 628a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 629a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 630a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 631c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 632a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the source range of 633a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// the nested-name-specifier that precedes the name. Otherwise, 634a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// returns an empty source range. 635a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange getQualifierRange() const { 636a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 637a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceRange(); 638c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 639a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->Range; 640a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 641c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 642c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 643a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 644a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 645a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 646a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 647c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 648a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->NNS; 649a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 650c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 651096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 652096832c5ed5b9106fa177ebc148489760c3bc496John McCall return (DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag); 653096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 654096832c5ed5b9106fa177ebc148489760c3bc496John McCall 655096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 656096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 657096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 658096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(hasExplicitTemplateArgs()); 659096832c5ed5b9106fa177ebc148489760c3bc496John McCall 660096832c5ed5b9106fa177ebc148489760c3bc496John McCall if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 661096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 662096832c5ed5b9106fa177ebc148489760c3bc496John McCall 663096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 664096832c5ed5b9106fa177ebc148489760c3bc496John McCall getNameQualifier() + 1); 665096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 666096832c5ed5b9106fa177ebc148489760c3bc496John McCall 667096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 668096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 669096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 670096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 671a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 672d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 673096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 674096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 675096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 676096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getExplicitTemplateArgsOpt() const { 677096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 678096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 679096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 680096832c5ed5b9106fa177ebc148489760c3bc496John McCall 681d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 682d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 683d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 684096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 685096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 686d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 687c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 688a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 689a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 690a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 691096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 692a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 693c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 694096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 695a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 696c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 697a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 698a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 699833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 700096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 701a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 702c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 703096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 704a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 705c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 706a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 707a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 708a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 709096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 710a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 711c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 712096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 713a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 714c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 715a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 716a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 717a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 718096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 719a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 720c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 721096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 722a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 723c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 7241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 72599e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 7265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 7281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 72977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 73077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 73177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 732663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 73360adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 7343397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 737d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 738d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 739227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 740227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 741227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 742227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 743848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 744848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 745848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 746848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 747227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 7481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 749227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 750227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 751227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 752227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 7531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 754f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 755f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall type->isDependentType(), type->isDependentType()), 756f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 7571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 75817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 7591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 76017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 76117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 762227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 76317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 76417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 76517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 76617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 76717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 768848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 7693a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 770227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 771227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 7721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 774227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 775d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 7761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 77777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 77877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 77977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 780227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 781227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 7829996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 7839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 7849996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 7859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 7869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 7879996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 7889996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 7899996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 7909996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 7919996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned BitWidth; 7929996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 7939996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 7949996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 7959996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 7969996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 7979996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 7989996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 7999996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 8009996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 8019996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8029996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 8039996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage() : BitWidth(0), VAL(0) { } 8049996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8059996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 8069996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 8079996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 8089996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 8099996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 8109996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 8119996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 8129996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 8139996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8149996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APIntStorage : public APNumericStorage { 8169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 8179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return getIntValue(); } 8189996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 8199996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8209996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8219996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APFloatStorage : public APNumericStorage { 8229996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 8239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return llvm::APFloat(getIntValue()); } 8249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 8259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 8269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 8279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8289996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 8309996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APIntStorage Num; 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 8349996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 8359996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 8369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 8409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral(ASTContext &C, const llvm::APInt &V, 8419996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l) 842f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(IntegerLiteralClass, type, VK_RValue, OK_Ordinary, false, false), 843f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l) { 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 8459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 847a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 8489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 8499996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // or UnsignedLongLongTy 8509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 8519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 8529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 8530b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8549996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return Num.getValue(); } 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 857313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 858313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 859313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 8609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { Num.setValue(C, Val); } 8610b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 8620b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 8671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 86877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 86977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 87077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 8755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 876c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 8775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 879c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 880f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false), 881f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Value(value), Loc(l), IsWide(iswide) { 8825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8830b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8840b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 8850b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 8860b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 887018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 888c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 8891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 8911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8940b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 8950b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 8960b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 8970b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 90277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 90377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 90477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 90577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 9099996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APFloatStorage Num; 910720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 9129996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9139996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 914720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 915f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(FloatingLiteralClass, Type, VK_RValue, OK_Ordinary, false, false), 9169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IsExact(isexact), Loc(L) { 9179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 9189996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 92017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 9211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 9229996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(FloatingLiteralClass, Empty), IsExact(false) { } 92317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 9249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 9259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 9269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 9279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 9289996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9299996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return Num.getValue(); } 9309996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 9319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis Num.setValue(C, Val); 9329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 93317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 934720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 93517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 936c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 937da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 938da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 939da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 940da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 9411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 94217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 94317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 94417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 9465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 9511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 95277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 95377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 95477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9575d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 9585d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 9595d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 9605d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 9615d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 9625d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 9635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 9645d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 9655d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 966f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false), 967f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 9681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 969cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 9701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 971cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 972cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 9735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 9745549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 975cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 976cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 9775d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 9781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 9805d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 9815d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 9821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9835d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 9845d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 9855d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 9865d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 9875d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 988e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 989e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 990e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 991a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 992c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 993c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 994690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 995690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 9968bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 997690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 998c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 999c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1000c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1001c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1002c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1003c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 1008726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 1009726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 10102085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1011f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1012f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false) {} 10131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10152085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 10162085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 10172085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 10182085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 1019a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 10202085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 10212085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 10221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 10232085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 10242085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 10252085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 10262085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1027a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1028673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1029673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1030673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1031b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 1032b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 1033b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 10342f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 1036673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1037673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 1038b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 1039673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 1041673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 1042673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 10438d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1044b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 1045b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1046b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 104733fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 104833fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 104933fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1050726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1051726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1052726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 10531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1054726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1055726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1056726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1057726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 10581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1059673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1060673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1061673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 106208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner 106308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 106408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 106508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 106608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 106708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 106808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 106908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 107008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 107108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 107208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1073673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1074b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1075b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1076b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 10791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 10851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 108677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 108777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 108877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 10955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1098898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1099f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 11001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump val->isTypeDependent(), val->isValueDependent()), 1101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 11021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1103c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 11041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1105c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1106c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 11075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 11085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1109c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1110c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 1111866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1113313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1114313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1115c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1116313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1117313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1118313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1119c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1120313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 11211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 11251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 112677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 112777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 112877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11320518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 11330518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1135dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1136dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1137dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1138dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1139dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1140dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1141dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11445baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 11455baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 11470799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 11490799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 11501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 11515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1152f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1153f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1154f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1155de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 11561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump input->isValueDependent()), 11570799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11590b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 11601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 11612de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 11620b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11630799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 11640b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 11650b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11665549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 11670b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 11680b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 11710b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 11720b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 11742085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 11752de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 11762085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11785a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 11792085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 11802de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 11812085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 11825a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 11830799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 11840799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 11852de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 1186993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc == UO_PreInc || Opc == UO_PostInc; 11872de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 11882de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 1189993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc <= UO_PreDec; 11902de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 11912de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 11922de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 11932de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 11940799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 11951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1200bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1201bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1202bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1203bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1204bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1205bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1206bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1207bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 12151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 12201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 122177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 122277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 122377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 12245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 12278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 12288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 12298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 12308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1231c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// double d; 12328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 12338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 12348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 12358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 12368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 12378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1238c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 12398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 12418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 12428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 12438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 12448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 12458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 12468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1247cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 12488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1249cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 12508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1251cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1252cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1253cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1254cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1255cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 12568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 12578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 12598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1260c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 12628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1263c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 12658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1266c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - An unsigned index into the array of Expr*'s stored after this node 12678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 12688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 12698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 12708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1271c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - A CXXBaseSpecifier*, for references that look at a field in a 1272cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 12738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1274c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 12768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1277c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 12788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 12798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1280c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1282c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 12838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1284c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 12858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1286c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 12888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 12898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1290c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 12918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1292cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1293cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1294cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1295cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1296c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1298c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt Kind getKind() const { 12998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 13008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1301c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 13038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 13048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 13058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 13068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 13078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 13108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 13118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1312cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 13138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1314c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 13168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 13178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1318c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1319cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1320cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1321cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1322c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1323cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1324c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 13268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 13278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 13288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1329c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// contains the location of the period (if there is one) and the 13308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 13318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange getRange() const { return Range; } 13328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 13338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1335c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 13378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 13388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 13398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 13408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 13418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 13428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1343c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1344c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfExpr(ASTContext &C, QualType type, 13458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1346c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 13478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 13488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 13498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 13518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1352c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 13538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1355c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1356c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *Create(ASTContext &C, QualType type, 1357c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1358c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 13598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 13608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 13618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1362c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *CreateEmpty(ASTContext &C, 13638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 13648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 13668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 13678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 13688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 13708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 13718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1372c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 13748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 13758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 13778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 13788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1379c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor const OffsetOfNode &getComponent(unsigned Idx) { 13818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 13828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<OffsetOfNode *> (this + 1)[Idx]; 13838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 13868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 13878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 13888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1389c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 13918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 13928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 13958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 13968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 13978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 13988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 14018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 14028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 14038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 14048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1405c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 14078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 14088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual SourceRange getSourceRange() const { 14118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 14128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 14158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 14168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 14198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 14218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_begin(); 14228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_end(); 14238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 14248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14250518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 14260518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 14270518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 14280518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 14290518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1430d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1431a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1432d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1433d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 14345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 143542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 14365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1437a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall SizeOfAlignOfExpr(bool issizeof, TypeSourceInfo *TInfo, 14380518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 14390518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 1440f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SizeOfAlignOfExprClass, resultType, VK_RValue, OK_Ordinary, 1441ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 14422850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1443a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TInfo->getType()->isDependentType()), 1444ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 1445a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1446ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1447ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 14481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, Expr *E, 1449ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 1450ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 1451f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SizeOfAlignOfExprClass, resultType, VK_RValue, OK_Ordinary, 1452ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1453ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1454ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 1455ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 1456ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1457d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 14580518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 14590b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 14600b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 14610b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 14620b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 14640b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 14650b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14660518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 14670518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 14685ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 14695ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1470a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 14710518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 14725ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 14730518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1474caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 14750518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1476d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 14770518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1478caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1479caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 1480caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 14810b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14820b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1483a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1484a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 14851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 14860b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 14870b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14880518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 14890518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 14900518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 14910518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 14920518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 14930518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 149476e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 14950b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 14960b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14970b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 14980b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1499866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1500866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 1501866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1502866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 15035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == SizeOfAlignOfExprClass; 15065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15070518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 15081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 150977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 151077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 151177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 15125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 15155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 15165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 15175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 15195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 152077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 15211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 15225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 15235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15242324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 1525f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 152673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 1527f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 15282850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 15292850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 15302850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 153173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 153273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 153373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 15341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1535cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1536cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1537cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1538cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 15392324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 15402324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 15412324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 15422324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 15432324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 154433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 154533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 154633fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 154733fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 15485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 15495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1550cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1551cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 15525549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 15535549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1554cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 15551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 15575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 155877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 15591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 15615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 15622324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 15631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 15655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 15662324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 15671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 156877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 15695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 15701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 15711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 157377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 15745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1576026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1577cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1578cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 15795cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 15835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 15851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 158677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 158777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 158877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 15895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1592b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 15931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1594b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 15951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1596b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1597b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 15985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 159977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 16005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 16015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 16025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 16031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1604b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1605b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 1606668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 1607f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, SourceLocation rparenloc); 160842602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 16095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 1611f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 16121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16131f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1614ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 16151f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 16165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 16175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 161818b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1619a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1620d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 1621d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 1622d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 1623d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 1624d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 1625a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1626a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1627bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1628bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1629bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1630a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 16325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 16341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 16365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 16375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 16385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 16425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 16435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1645934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1646934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1647934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1648934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 1649934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 16501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1651d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1652d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1653d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 16548189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 16551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16565549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 16575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 16581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1659d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1660d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 16615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 16625549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 16631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 16655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 16665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 16675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1668cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1669cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 16703c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 16711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 16731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 16746dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 16756dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 16761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1677d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 16781f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1679866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 16801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 168177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 16825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16854bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 16864bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 16875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 168988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 169077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 169177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 169277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 16935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1695ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 16965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 16975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 16986bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 16996bb8017bb9e828d118e15e59d71c66bba323c364John McCall struct MemberNameQualifier : public NameQualifier { 1700161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 17016bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 17026bb8017bb9e828d118e15e59d71c66bba323c364John McCall 1703ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1704ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 17055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 17061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1707ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1708ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1709f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 17101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1711ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 17125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 17131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17142577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 17152577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 17162577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 17172577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 1718ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 171983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 17201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 172183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 17226bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 17236bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 1724c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 17256bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 17261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1727c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1728c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1729c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1730c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 17316bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 1732c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 17331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 173483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 17356bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 17366bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 17376bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 173883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 173983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 174083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 17416bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 1742c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1743c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1746f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1747f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 1748f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1749f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 17502577743c5650c646fb705df01403707e94f2df04Abramo Bagnara base->isTypeDependent(), base->isValueDependent()), 17512577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 17522577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 17532577743c5650c646fb705df01403707e94f2df04Abramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) { 17542577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 17552577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 17562577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 17572577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 17582577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 17592577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 17602577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // for constructors, destructors and conversion oeprators). 17612577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1762f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 1763f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1764f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1765ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 17662577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 17672577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 17686bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1769510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 17701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 177183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 1772161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 17732577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 1774d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1775f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 17761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 177788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 17785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 177957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 178057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 178157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 178257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 178357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1784f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1785f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 17861f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 17876bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1788161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 17896bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1790161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1791161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 17926bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 17936bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 17946bb8017bb9e828d118e15e59d71c66bba323c364John McCall 17951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 17960979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 17970979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 17986bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 17991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 180083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 180183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 180283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 18031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 18046bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 180583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 18061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 180783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 180883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 18091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 181183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 181283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 18131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 18146bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 181583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 18161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 181783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 181883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1819c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1820c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1821c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1822096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 18231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1824c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1826d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1827d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1828d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1829096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 1830096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 1831096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1832096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1833096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1834096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 1835096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 1836096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 1837096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(HasExplicitTemplateArgumentList); 1838096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!HasQualifierOrFoundDecl) 1839096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 1840096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1841096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 1842096832c5ed5b9106fa177ebc148489760c3bc496John McCall getMemberQualifier() + 1); 1843096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1844096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1845096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1846096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 1847096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 1848096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 1849096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 1850096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1851096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1852096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 1853096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 1854096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 1855096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getOptionalExplicitTemplateArgs() const { 1856096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 1857096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 1858d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 1859c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 18601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1861c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 18621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1863c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1864c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 18651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1866096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 1867c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1869c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1870c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1871833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1872c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 18731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 18741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1875096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 1876c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1878c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1879c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 18801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1881c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 18821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 18831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1884096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 1885c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1888c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 18891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1890c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1891c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 18921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1893096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 1894c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18962577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 18972577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 18982577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 18992577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 19002577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 19012577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 19025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 19031f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 19041f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1905ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1906ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1907026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 19081f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 19095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 191172527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 191272527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 19132577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceLocation EndLoc = (HasExplicitTemplateArgumentList) 19142577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ? getRAngleLoc() : getMemberNameInfo().getEndLoc(); 19151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 191672527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 191772527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1918c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1919c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 19205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 19235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 192583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 19265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 19281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19291237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 19301237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 19311237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 19324045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 19334045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 19344045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 19355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 1938aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1939aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 19400fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 19410fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 19420fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 19430fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 19441d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 19451d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 19461d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 194742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 19485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1949e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1950aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 19512333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can compound literals be value-dependent? 195242f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 1953f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 1954f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 195542f56b50062cd3b3c6b23fdb9053578ae9145664John McCall tinfo->getType()->isDependentType(), false), 195642f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 19571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1958ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1959ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1960ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1961ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 19625549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 19635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1964ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1965e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1966e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1967ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1968ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 19690fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1970ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1971ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 197242f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 197342f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 197442f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 197573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 19760fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 19770fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 19780fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 19790fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 198073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 19810fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 198273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1983aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 19841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 19851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 1986aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1987aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 19881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19891237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 19901237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 19911237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1992aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1993aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 199449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 199549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 199649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 199749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 19980835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 1999cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 20005baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 20011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2002cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 20030835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2004409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2005daa8e4e888758d55a7a759dd4a91b83921cef222John McCall void CheckCastConsistency() const { 2006409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 2007409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 20085cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 2009cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 2010cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 2011409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 2012409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 2013f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(!path_empty() && "Cast kind should have a base path!"); 2014f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 2015409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2016409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 2017409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 2018409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 2019409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 2020409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 2021409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 2022409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 2023404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall case CK_NullToPointer: 2024409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 2025409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 2026409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 2027409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 2028409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 2029409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 2030409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 2031409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 2032409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 2033409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 2034409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 2035569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor case CK_ObjCObjectLValueCast: 20362bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingRealToComplex: 2037f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToReal: 20382bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingComplexCast: 2039f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToIntegralComplex: 20402bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralRealToComplex: 2041f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToReal: 20422bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralComplexCast: 2043f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToFloatingComplex: 2044daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(!getType()->isBooleanType() && "unheralded conversion to bool"); 2045daa8e4e888758d55a7a759dd4a91b83921cef222John McCall // fallthrough to check for null base path 2046daa8e4e888758d55a7a759dd4a91b83921cef222John McCall 2047daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_Dependent: 2048daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_NoOp: 2049daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_PointerToBoolean: 2050daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralToBoolean: 2051daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingToBoolean: 2052daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_MemberPointerToBoolean: 2053daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingComplexToBoolean: 2054daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralComplexToBoolean: 20555082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_LValueBitCast: // -> bool& 20565082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_UserDefinedConversion: // operator bool() 2057f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(path_empty() && "Cast kind should not have a base path!"); 2058409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 2059409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2060409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 2061409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2062409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2063f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2064f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2065f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2066f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2067f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 20680835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2069f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2070f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2071f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2072898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2073898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2074898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2075898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2076898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 20771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ty->isDependentType() || (op && op->isValueDependent())), 20788e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2079daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 20808e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 20818e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 2082daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 2083f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 20841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2085087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2086f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 20878e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 20888e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 20898e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 20901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20910835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 20928e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 20938e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2094f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2095f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 20960835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 20970835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2098087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2099087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 21006eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 21016eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 21026eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 21036eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 21046eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 21056eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 21066eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 210741b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2108f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2109f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 21108e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 21118e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2112f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2113f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2114f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2115f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2116f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2117f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 211841b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 21191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21204bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 21214bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 21220835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 21230835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 21241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21250835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 21260835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 21270835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 21280835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 21290835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 213049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 213149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 213249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 213349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 213449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2135bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2136bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2137906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2138bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2139bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2140bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2141bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2142906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 21431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2144906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2145906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2146906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2147906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2148bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2149bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 21500835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2151906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2152f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 21535baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2154f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 21555baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 215690045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2157087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2158f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2159f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2160f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2161f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2162f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2163f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 21645baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2165f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 21665baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2167f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2168f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2169f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2170f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 21715baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2172f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2173f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2174087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 21750835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 21760835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 21770835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 217890045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 21791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 218149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 218249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 218349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 218449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 218549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 21861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 218749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 218849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 218949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 219049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 219149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 219249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 21935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 219449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 219549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 219649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 219749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 219849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2199906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2200906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 22010835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 22029d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 22039d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 22049d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 220549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 220649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2207f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2208f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2209f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2210f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 221149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2212db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2213f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2214f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2215db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 221649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 22179d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 22189d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 22199d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 22209d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 22219d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 222249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 222349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 22249d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 222549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 22261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22274bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 22284bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 222949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 223049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 223149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 223249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 22336eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 223449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 223549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 22366eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2237b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2238b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2239f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2240f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2241f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 224241b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2243f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 224441b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 224549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2246db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2247f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2248f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2249f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2250f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2251f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2252f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2253f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2254f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2255f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2256f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2257f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2258db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2259b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2260db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2261db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2262b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2263db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2264db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 2266b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 22675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 22705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22716eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 22725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 22735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22743fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 22753fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 22763fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 22773fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 22783fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 22793fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 22803fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 22813fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 22823fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 22833fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 22843fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 22853fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 22863fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 22873fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 22883fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 22893fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 22903fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 22913fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 22925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 22935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 22945baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 22955baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 229617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 22970799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 22980799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 22990799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 230017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 23015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 23021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 23031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 230417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2305f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 230617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2307f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2308898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 23091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump lhs->isValueDependent() || rhs->isValueDependent()), 2310898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 23111237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 23121237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 23131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 23145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 23155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2317db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 23181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 23192de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2320db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 232117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2322db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2323db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23240799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2325db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2326db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2328db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 23295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2330db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2331db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 23335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 23345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 23375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 23385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 23395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23400799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2341a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2342063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2343063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2344063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2345063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2346063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2347063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2348063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2349063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 23505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2351200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 23522de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 23532de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 23540799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 23552de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 23560799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2357aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 23582de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 23590799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2360f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 23612de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 23620799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2363f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 23642de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 23650799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 23661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23672de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 23680799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2369aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 23702de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 23710799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2372f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 23732de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isAssignmentOp() const { return Opc >= BO_Assign && Opc <= BO_OrAssign; } 23742de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isCompoundAssignmentOp() const { 23752de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 23762de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 23772de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isShiftAssignOp() const { 23782de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 23792de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 23801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 23824bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 23834bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 23845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 23861237c673c07f9d827129ba02720108816abde562Ted Kremenek 23871237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 23881237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 23891237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 23901237c673c07f9d827129ba02720108816abde562Ted Kremenek 23915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 239217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2393f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 23942333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 2395f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 23962333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 23972333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isValueDependent() || rhs->isValueDependent()), 23982333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 23991237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 24001237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 24015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2402ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 24031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 24042de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 24055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 24085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 24095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 24105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 24115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 24125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 24135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2414ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2415ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 24165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2417f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 2418f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2419f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 242017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 2421f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, true), 2422ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2423ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 24241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 24255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 24265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2428ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2429ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2430ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2431ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2432ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2433ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2434ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2435ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2436ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2437ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2438ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2439ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2440ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 24415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 24421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 24431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 24445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 24485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 24495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 24505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 24511237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 24525549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2453f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Stmt* Save; 245447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 24555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 245647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 2457f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation CLoc, Expr *rhs, Expr *save, 2458f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK) 2459f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ConditionalOperatorClass, t, VK, OK_Ordinary, 2460898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2461898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2462898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 2463898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 24641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 2465898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 246647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor (rhs && rhs->isValueDependent()))), 246747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 246847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 24691237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 24701237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 24711237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 2472f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Save = save; 24731237c673c07f9d827129ba02720108816abde562Ted Kremenek } 24745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2475ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2476ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 2477ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 2478ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2479395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 2480395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 24815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2482ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 2483395a2abf0028968d85958610e393e067885dc14fTed Kremenek 2484395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2485f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // expression if the condition evaluates to true. 2486395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 2487af9b96828f9126d993c3e155b8453be62013b735Fariborz Jahanian return cast<Expr>(SubExprs[LHS]); 2488395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 24891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2490ae2777cfe7d21f73e5a4155082fe20197cec62bdNick Lewycky // getFalseExpr - Return the subexpression representing the value of the ?: 2491395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 24925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 2493f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 2494f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // getSaveExpr - In most cases this value will be null. Except a GCC extension 2495f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // allows the left subexpression to be omitted, and instead of that condition 2496f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // be returned. e.g: x ?: y is shorthand for x ? x : y, except that the 2497f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // expression "x" is only evaluated once. Under this senario, this function 2498f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // returns the original, non-converted condition expression for the ?:operator 2499f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getSaveExpr() const { return Save? cast<Expr>(Save) : (Expr*)0; } 2500f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 2501f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getLHS() const { return Save ? 0 : cast<Expr>(SubExprs[LHS]); } 2502ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 2503ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 25045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2505ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 25065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2507f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getSAVE() const { return Save? cast<Expr>(Save) : (Expr*)0; } 2508f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian void setSAVE(Expr *E) { Save = E; } 2509f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 251047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 251147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 251247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 251347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 251447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 251547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 25165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 25175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 25185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 25201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 25215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 25231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25241237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25251237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25261237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 25275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25296481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 25306481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 25315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 25325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 25335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 25346481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 25356481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 2536f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false), 25372333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 25381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25397d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 25401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 25417d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 25427d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 25437d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 25447d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 25457d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 25467d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 25477d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 25485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 25495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 25505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 25537d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 25547d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 25555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 25561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 25575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25586481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 25591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25601237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25611237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25621237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 25635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2564ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2565ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2566ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2567ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2568f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 2569f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 2570f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 2571ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 25725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2573ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2574ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 25752333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2576d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2577d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 2578f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 2579f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall T->isDependentType(), false), 25802333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 25811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25826a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 25836a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 25846a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 25855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 25865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 25876a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 25886a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 2589ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 2590ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2591ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 25921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2593026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 25946a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2595026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 25966a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 25971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2598ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 25991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2600ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2601ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 26021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26031237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26041237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26051237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2606ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2607ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2608dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 2609d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 2610d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 2611d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 2612d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 26133fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *TInfo1; 26143fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *TInfo2; 2615363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2616d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 26171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 26183fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *tinfo1, TypeSourceInfo *tinfo2, 26193fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara SourceLocation RP) : 2620f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(TypesCompatibleExprClass, ReturnType, VK_RValue, OK_Ordinary, 2621f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall false, false), 26223fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TInfo1(tinfo1), TInfo2(tinfo2), BuiltinLoc(BLoc), RParenLoc(RP) {} 2623d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 262444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 262544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 262644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 262744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 26283fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *getArgTInfo1() const { return TInfo1; } 26293fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara void setArgTInfo1(TypeSourceInfo *TInfo) { TInfo1 = TInfo; } 26303fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *getArgTInfo2() const { return TInfo2; } 26313fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara void setArgTInfo2(TypeSourceInfo *TInfo) { TInfo2 = TInfo; } 26323fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara 26333fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara QualType getArgType1() const { return TInfo1->getType(); } 26343fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara QualType getArgType2() const { return TInfo2->getType(); } 26351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 263644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 263744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 26381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 263944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 264044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 26411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2642d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 2643363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2644d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2645d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 26461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == TypesCompatibleExprClass; 2647d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2648d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 26491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26501237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26511237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26521237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2653d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 2654d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2655d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2656d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2657d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2658d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2659d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2660d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2661d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2662d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2663d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2664d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2665d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2666d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2667d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 26685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2669d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2670d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2671d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 26722333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can a shufflevector be value-dependent? Does type-dependence need 26732333f7727f97018d6742e1e0938133bcfad967abEli Friedman // to be computed differently? 2674a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 26751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 26761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation RP) : 2677f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(ShuffleVectorExprClass, Type, VK_RValue, OK_Ordinary, 2678f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Type->isDependentType(), false), 26792333f7727f97018d6742e1e0938133bcfad967abEli Friedman BuiltinLoc(BLoc), RParenLoc(RP), NumExprs(nexpr) { 26801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2681a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 2682d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 2683d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 2684d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 268594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 268694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 26871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 268894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 268994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 269094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 269194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 26921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 269394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 269494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 269594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2696d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 2697d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2698d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2699d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 27001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2701d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2702d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 27031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2704d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2705d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2706d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2707d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 27081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2709d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2710d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2711d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 27125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2713d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2714d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2715d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 27165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2717d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 27181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2719888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 272094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2721dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2722dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 27239a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2724d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 27251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2726d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 2727d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 2728d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 2729d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2730d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2731d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 27321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2733d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 27347976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 27357976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 27367976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 27377976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 27387976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 27397976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2740d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 27411237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 27425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2743d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2744d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2745f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 2746f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 2747ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2748f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent), 27491237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 27501237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 27511237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 27521237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 27531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 27547976932a1c256d447316ffac58e9821417725e34Eli Friedman 275544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 275644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 275744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 27587976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 27597976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 276027437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 27617976932a1c256d447316ffac58e9821417725e34Eli Friedman 27627976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 27637976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 27647976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 27657976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 27667976932a1c256d447316ffac58e9821417725e34Eli Friedman } 27677976932a1c256d447316ffac58e9821417725e34Eli Friedman 27685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 276944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 27705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 277144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 27725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 277344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 277444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 277544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 277644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 27771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 277844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 277944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 27801237c673c07f9d827129ba02720108816abde562Ted Kremenek 2781d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2782d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2783d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2784d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 27851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2786d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2787d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 27881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27891237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 27901237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 27911237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2792d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2793d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 27942d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 27952d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 27962d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 27972d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 27982d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 27992d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 28002d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 28012d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 28022d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 28032d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 28042d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 28051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 2806f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false), 2807f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 28082d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 280944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 281044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 281144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 28122d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 28132d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 281444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 28152d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 28162d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 28172d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 28182d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 28192d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 28201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 28212d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 28222d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 28231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28242d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 28252d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 28262d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 28272d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 28282d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 282974626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 28307c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 28315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 28322cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 28337c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 28347c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 28352cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 28362cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 2837f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 2838f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall t->isDependentType(), false), 28392cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 28407c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 28417c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 28421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 284374626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 2844d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2845d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 28475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2848d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2849d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28502cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 28512cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 28522cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 2853d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2854d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 28551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2856d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2857d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2858d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28597c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 28607c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 28611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 28627c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 28637c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 28647c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 28657c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 28661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28677c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 28687c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 28691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 28707c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 28711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 28734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 28744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 28754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 28764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 28774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 28784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 28794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 28804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2881196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 28824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 28834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 28844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 28854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 28864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 28874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 28884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 28894c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2890196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 28914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 28924c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 28934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 28944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 28954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 28964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 28974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 28983498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 28994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 29004c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 29014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2902196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 29034c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 29044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 29054c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 29064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 29074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 29084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 290966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 2910ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 2911709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 2912709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 291366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 29141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 29164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 29174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 29184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 29190bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 29200bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 29210bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 29220bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2923a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2924a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2925a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2926a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 292766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 2928709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 2929709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 2930ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 2931d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2932d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2933709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 2934709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 29351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2936ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 29371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 293816c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 2939c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 294166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 29421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 294316c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 2944c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 294666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 29471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 2949c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29509e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 29519e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2952c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2953fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2954709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 29551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 29574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 29584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 29594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 29604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 29614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 29624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 29634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 29644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 29654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 29664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 29674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 29684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 29694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 29704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 2971709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 2972c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 29730bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 29740bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 29750bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 29760bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 29770bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 29780bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 29790bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 29800bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 29810bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2982c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 2983c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 2984b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 2985b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 2986b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 29871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2988d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 2989d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 2990d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 299187fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 299287fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 29934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 29944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 29954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 29961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 29974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 29984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 29994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3000a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 30011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 3002d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 3003a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3004a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 3005c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek virtual SourceRange getSourceRange() const; 3006c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 300766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 30081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 300966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 301066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 30111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 301266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 301366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 301466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 30151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3016709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 30178111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3018709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 30198111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 30201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3021ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 30228111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3023ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 30248111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3025ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 30268111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3027ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 30288111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 302966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 303066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 303105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 303205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 303305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 303405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 303505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 303605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 303705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 30381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 303905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 304005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 304105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 304205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 304305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 304405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 304505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 304605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 304705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 304805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 304905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 305005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 305105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3052ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3053ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3054ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3055ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3056ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 305705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 305805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 305905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 306005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3061eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 306205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3063eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 306405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 306505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 306605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 306705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3068ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 3069ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 3070ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 3071ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 307205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 307305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 307405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 307505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 307605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3077ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3078319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3079ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3080eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 30819ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 30829ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 308305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3084d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3085d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3086d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 3087d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 308805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 308905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 309005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 309105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 309205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 309305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 309405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 309505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 309605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 309705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 30981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 309905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 310005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 31011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 310205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 310305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 310405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 310505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 310605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 310705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 310805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 310905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 311005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 311105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 311205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 311305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 311405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 311505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 311605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 31171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 311805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 311905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 312005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 312105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 312205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 312305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 312405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 312505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 312605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 312705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 312805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 312905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 313005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 313105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 313205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 313305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 313405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 313505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 313605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 313705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 313805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 313905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 314005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 314105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 314205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3143ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3144ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 314505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 31461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 31471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 314805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 314905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 315005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 315105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 315205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 315305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 315405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 31551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 315605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 315705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 315805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 315905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 316005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 316105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 316205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 316305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 316405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 31651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 316605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 316705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 316805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 316905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 317005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 317105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 317205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 317305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 317405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 317505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 317605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 317705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 317805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 317905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 318005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 318105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 318205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 318305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 318405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 318505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 318605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 318705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 318805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 318905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 319005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 319105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 319205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 319387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 319487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 319587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 319687f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 319787f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 319805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 319905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 320005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 320105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 320205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 320305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 320405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 320505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 320605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 320705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 320805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 320905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 321005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 321105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 321205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 321305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 321405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 321505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 321605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 321705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 321805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 321905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 32204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3221d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3222d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3223d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3224d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3225d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3226d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 32274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 32284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 32294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 32304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 32314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 32324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 323305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 323405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 32351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 323605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 323705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 323805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3239eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 324005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3241d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3242d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 324305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 324405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 324505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 324605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 324705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3248ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 32491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 32501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3251ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 325205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3253cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 3254cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 3255cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 3256cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 3257cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3258cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 3259cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 3260cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3261cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 3262711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3263711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3264c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3265319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3266d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 326705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 326805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 326905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 327005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 327105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 327205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 327305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3274d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 327505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 327605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3277eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3278eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3279d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 328005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 328105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 32821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 328305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 328405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 328505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 328605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 328705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 328805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 328905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3290d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3291d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3292d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3293d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3294d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3295d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3296d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3297d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3298d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3299d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3300d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3301d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3302d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3303d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3304d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3305d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3306d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3307d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3308d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3309d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3310ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3311ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3312319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3313ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3314ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 331505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 331605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 331705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 33181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 331905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 332005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 332105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 332205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 332305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 33241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 33253498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 33263498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33273498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 33283498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 33293498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 33301a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 33311a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 33323498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 33331a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 33341a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 33351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 33363498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 33371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 3338f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 3339f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall false, false) { } 33403498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3341d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3342d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3343d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3344d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 33451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 33463498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 33473498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 33483498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 33493498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33503498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 33513498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 33523498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 33533498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33543498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 33553498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 33561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 335705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 335805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 33592ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33602ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 33612ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 33622ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 33632ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 33642ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33652ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 33661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 33672ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 33682ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33692ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 337037bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 33711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33722ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 33731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 33752ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 33762ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 33772ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 33781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 33802ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 33812ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 33822ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 33832ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 338483ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 33851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33862ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 33872ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 33882ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33892ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 33902ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 33911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 33922ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 33931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 33942ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 33952ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 33961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33972ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 33982ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 33992ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 340037bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 340160adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 34023397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 34032ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 34042ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34064eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 34074eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 34084eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 34094eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3410a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3411a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3412a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3413a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3414a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 341573525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 341673525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 341773525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3418a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3419a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3420d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3421a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3422a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3423f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 3424f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 3425f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, OK_VectorComponent, 3426f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall base->isTypeDependent(), base->isValueDependent()), 3427d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 34281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3429d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3430d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3431d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3432d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3433a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3434a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3435d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3436d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3437d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3438d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3439d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3440d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3441d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3442d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3443a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3444a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 34451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3446a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3447a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3448a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 34491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3450a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3451a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3452a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 34531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3454a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 3455a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3456a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 34571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34582140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 34592140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 34602140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 34611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 34631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3464a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3465a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 34661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3467a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 3468a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 3469a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 3470a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3471a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3472a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 347356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 34749c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 34754eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 347656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 347756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 3478b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 34794eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3480b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 3481f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 3482f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ty->isDependentType(), false), 3483b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 34849c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 348584af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 348684af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 348784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3488d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 348956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 349084af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 349184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 349256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 349356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 349456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 349556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 34969c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 34979c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 349856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 34999c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 35009c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 350156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 350256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 350356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 3504b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 35055b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 3506b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 350784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 3508b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 35091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 35109c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 35114eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 35124eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 35131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35144eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 35154eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 35164eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 35174eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 35181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35194eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 35204eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 35214eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 35221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 35234eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 35247d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 35257d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 352689f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Stmt *CopyConstructorVal; 35274eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 35282333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Fix type/value dependence! 3529f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall BlockDeclRefExpr(ValueDecl *d, QualType t, ExprValueKind VK, 3530f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, bool ByRef, bool constAdded = false, 353184ca008a462b515f63871253f494d53c9190363cFariborz Jahanian Stmt *copyConstructorVal = 0) 3532f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockDeclRefExprClass, t, VK, OK_Ordinary, 3533f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall (!t.isNull() && t->isDependentType()), false), 353452bc56a296b11b4fc6bf5ddf4ded5262f6484bdbFariborz Jahanian D(d), Loc(l), IsByRef(ByRef), 353589f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian ConstQualAdded(constAdded), CopyConstructorVal(copyConstructorVal) {} 353694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 353794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 353894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 353994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 354094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 35411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35424eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 35434eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 354494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 354594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 354694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 354794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 354894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 35494eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 35501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35514eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 355294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 35531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35547d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 35557d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 355689f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian 355789f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian const Expr *getCopyConstructorExpr() const 355889f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 355989f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Expr *getCopyConstructorExpr() 356089f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 356189f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian void setCopyConstructorExpr(Expr *E) { CopyConstructorVal = E; } 356294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 35631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 35641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 35654eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 35664eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 35671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35684eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 35694eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 35704eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 35714eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 35724eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 35737cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 35747cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// fixed type and value class. These don't correspond to concrete 35757cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// syntax; instead they're used to express operations (usually copy 35767cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// operations) on values whose source is generally obvious from 35777cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// context. 35787cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCallclass OpaqueValueExpr : public Expr { 35797cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall friend class ASTStmtReader; 35807cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCallpublic: 3581f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall OpaqueValueExpr(QualType T, ExprValueKind VK, ExprObjectKind OK = OK_Ordinary) 3582f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 3583f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall T->isDependentType(), T->isDependentType()) { 35847cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall } 35857cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 35867cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall explicit OpaqueValueExpr(EmptyShell Empty) 35877cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall : Expr(OpaqueValueExprClass, Empty) { } 35887cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 35897cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual SourceRange getSourceRange() const; 35907cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual child_iterator child_begin(); 35917cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual child_iterator child_end(); 35927cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 35937cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall static bool classof(const Stmt *T) { 35947cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall return T->getStmtClass() == OpaqueValueExprClass; 35957cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall } 35967cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall static bool classof(const OpaqueValueExpr *) { return true; } 35977cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall}; 35987cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 35995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 36005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 36015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3602