Expr.h revision 663e380d7b2de2bbf20e886e05371195bea9adc4
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" 21709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek#include "clang/AST/ASTVector.h" 22409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#include "clang/AST/UsuallyTinyPtrVector.h" 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/APSInt.h" 24525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner#include "llvm/ADT/APFloat.h" 253b8d116703db8018f855cbb4733ace426422623bNate Begeman#include "llvm/ADT/SmallVector.h" 26b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar#include "llvm/ADT/StringRef.h" 27c5ae899b4bbf65488445316c63168079177db0edSteve Naroff#include <vector> 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 30590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 31c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 32c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 33c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 34c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 358e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 36c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 3756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 38409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson class CXXBaseSpecifier; 3988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 4088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 41833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall class TemplateArgumentLoc; 42d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall class TemplateArgumentListInfo; 4388a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 447ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 457ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlssontypedef UsuallyTinyPtrVector<const CXXBaseSpecifier> CXXBaseSpecifierArray; 467ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 53898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 54bef0efd11bc4430a3ee437a3213cec5c18af855aChris Lattner virtual void ANCHOR(); // key function. 559ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregorprotected: 561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// TypeDependent - Whether this expression is type-dependent 57898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.expr]). 58898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool TypeDependent : 1; 59898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// ValueDependent - Whether this expression is value-dependent 61898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.constexpr]). 62898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool ValueDependent : 1; 63898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 64898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(StmtClass SC, QualType T, bool TD, bool VD) 65b3eef68111ffc220e449be96da1747998c057790Douglas Gregor : Stmt(SC), TypeDependent(TD), ValueDependent(VD) { 66898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 67898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 68898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 690b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 700b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 710b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 7343d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// \brief Increases the reference count for this expression. 7443d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// 7543d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// Invoke the Retain() operation when this expression 7643d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// is being shared by another owner. 7743d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Expr *Retain() { 7843d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Stmt::Retain(); 7943d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor return this; 8043d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor } 811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 849d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 859d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 869d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 879d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 889d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 899d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 909d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 91905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 928320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 93f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 959d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 9677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 97898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 98898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 99898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 1001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 104898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isValueDependent() const { return ValueDependent; } 105898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 1070b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValueDependent(bool VD) { ValueDependent = VD; } 1080b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 113898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 114898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 117898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 118898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 119898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 120898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isTypeDependent() const { return TypeDependent; } 121898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1220b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1230b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setTypeDependent(bool TD) { TypeDependent = TD; } 1240b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 134026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 135026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 136026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 137026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 138026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 139df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 15008ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 15176458501a8963fa11b91c9337a487de6871169b4Sebastian Redl /// - b ? x : y, where x and y are lvalues of suitable types [C++] 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 157fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 15886f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 1592514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 160e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 161e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 16328be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 16453202857c60214d80950a975e6e52aebf30bd16aEli Friedman 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 17044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 17144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 17244e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 17344e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 178fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 180ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1834f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1845daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 185ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 18686f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 1872514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 188e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 189e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor MLV_ClassTemporary 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 19144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 19244e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 1931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1942111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 1952111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 1962111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 1972111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 1982111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 1992111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 2002111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 2012111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 2022111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 2032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 2042111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 2052111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 2062111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 2072111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_ClassTemporary, // A prvalue of class type 2082111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 2092111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2102111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 2112111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 2122111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 2132111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 2142111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 2152111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 2162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 2172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NotBlockQualified, // Not captured in the closure 2182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 2192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 2202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 2212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 2222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 2252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 2262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 2282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 2292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 2312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 2322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 2332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 2362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 2382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 2392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 2402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 2412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 2432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 2442111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 2452111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 2462111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 2472111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 2482111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2492111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief classify - Classify this expression according to the C++0x 2502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 2512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x defines ([basic.lval]) a new taxonomy of expressions to replace the 2532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 2542111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 2552111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 2562111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 2572111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 2582111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 2592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 2602111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 2612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// If a 2622111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 2632111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 2642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2652111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2662111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief classifyModifiable - Classify this expression according to the 2672111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x expression taxonomy, and see if it is valid on the left side 2682111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 2692111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2702111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 2712111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 2722111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 2732111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 2742111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 2752111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 2762111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2772111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2782111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 2792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 2802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 2822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 28333bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 28433bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 28533bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28738d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 28838d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 28938d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 2901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 291093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 292093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 293c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 2942b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 2952b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 2962b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 2972b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 2982b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 299c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 304590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 305590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 307590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 3088070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 309590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 311c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 312c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 313c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt bool isConstantInitializer(ASTContext &Ctx) const; 3141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 31694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 3172d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 31894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 3191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 32194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 32294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 3231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 32594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 32694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 32794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 32894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 32994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 33094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 33194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 33294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 33394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 33494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 3351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 337e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 338e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // isGlobalLValue - Return true if the evaluated lvalue expression 339e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // is global. 340e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool isGlobalLValue() const; 341e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 342e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 343e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 344e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 345e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 34694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 34794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 3486ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 349019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 350019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 351019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 3525b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 3535b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 354cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 355cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 356cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// any crazy technique that we want to. 357cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall bool EvaluateAsBooleanCondition(bool &Result, ASTContext &Ctx) const; 358cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 3596ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 36045b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 36145b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 362c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 3636ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 364c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// which must be evaluated each time and must not be optimization away 3656ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 3666ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 367393c247fe025ccb5f914e37e948192ea86faef8cFariborz Jahanian bool HasSideEffects(ASTContext &Ctx) const; 368c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 36951fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 37051fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 37151fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 37251fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 373b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 374b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 3751b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 3761b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 377e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue. 378e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool EvaluateAsAnyLValue(EvalResult &Result, ASTContext &Ctx) const; 379e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 380ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 381ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 382ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 383ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 384ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 385c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 386ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 387ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 388ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 389c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 390ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 391ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 392ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 393ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 394c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 395efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 396efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 397efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 398ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor bool isNullPointerConstant(ASTContext &Ctx, 399ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NullPointerConstantValueDependence NPC) const; 400efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 40144baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 4021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 403102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 4041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4054e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 4061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 4074e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 4084e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 4092b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 41056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 41156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 41227c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 41356f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 4141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4152fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 4162fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 4172fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 4182fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 419ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 420ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 421ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 422ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 4231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4246eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 4256eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 4266eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 427c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 4286eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 4296eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 4306eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 4316eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 432c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 4332f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// \brief Determine whether this expression directly creates a 4342f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// temporary object (of class type). 4352f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor bool isTemporaryObject() const { return getTemporaryObject() != 0; } 4362f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 4372f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// \brief If this expression directly creates a temporary object of 4382f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// class type, return the expression that actually constructs that 4392f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// temporary object. 4402f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor const Expr *getTemporaryObject() const; 4412f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 4422b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 4434e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 4444e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 44556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 44656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 44756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 448ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 449ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 450ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 4511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 452898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 453898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 454898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 4551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 4565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 4571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 4585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 4605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 4645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 4655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 467a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 468a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 469a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 470a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The nested name specifier. 471a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *NNS; 472c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 473a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source range covered by the nested name specifier. 474a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange Range; 475a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 476a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 477a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 478a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 479a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 480a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 481a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 482c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 483a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 484a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 485c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 486a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 487a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 488a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 489a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 490c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 491a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 492833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 493833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 494a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 495c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 496a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 497833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 498833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 499a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 500d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 501d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 502d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 5038dfbd8b252ba4e6cf4b7a3422f6ef0ca21312dfeArgyrios Kyrtzidis static std::size_t sizeFor(unsigned NumTemplateArgs); 504d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 505a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 506c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 510a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 511c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 512a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 513a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 514c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 515a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 516a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 517a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 518c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 519c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 520a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 521c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 522a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 523dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 524c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 525a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 5265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 5279e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 528a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 529a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 5302cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 531a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 532c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 533a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 534a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 535c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 536a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 537a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 538a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 539a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 540c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 541a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the explicit template argument list that followed the 542a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member template name, if any. 543a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 5442cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag) == 0) 545a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 546c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5472cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 548a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 549c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 550a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 551a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor getNameQualifier() + 1); 552a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 553c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 554a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the explicit template argument list that followed the 555a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member template name, if any. 556a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 557a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgumentList(); 558a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 559c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 560a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 561dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 562d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 5630da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T); 564663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 565663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 566663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 567663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 568c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5690da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 5700da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 5710da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 5729e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 5735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 574dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, SourceLocation l) : 5750da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor Expr(DeclRefExprClass, t, false, false), DecoratedD(d, 0), Loc(l) { 5760da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 5770da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 5781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 579a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 580a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 581a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 582dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 583a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 5840da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T, 5850da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 586663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 587663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 588663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 589663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis bool HasQualifier, unsigned NumTemplateArgs); 590c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 591dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 592dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 593dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 594904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 5959e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 5960b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 597a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor virtual SourceRange getSourceRange() const; 5981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 599a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 600a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 601a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 602c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 603a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the source range of 604a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// the nested-name-specifier that precedes the name. Otherwise, 605a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// returns an empty source range. 606a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange getQualifierRange() const { 607a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 608a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceRange(); 609c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 610a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->Range; 611a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 612c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 613c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 614a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 615a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 616a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 617a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 618c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 619a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->NNS; 620a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 621c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 622a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determines whether this member expression actually had a C++ 623a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 624a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasExplicitTemplateArgumentList() const { 625a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag; 626a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 627d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 628d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 629d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 630d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 631d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall if (hasExplicitTemplateArgumentList()) 632d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall getExplicitTemplateArgumentList()->copyInto(List); 633d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 634c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 635a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 636a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 637a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 638a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 639a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 640c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 641a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->LAngleLoc; 642a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 643c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 644a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 645a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 646833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 647a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 648a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 649c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 650a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->getTemplateArgs(); 651a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 652c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 653a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 654a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 655a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 656a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 657a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 658c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 659a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->NumTemplateArgs; 660a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 661c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 662a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 663a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 664a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 665a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 666a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 667c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 668a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->RAngleLoc; 669a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 670c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 6711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 67299e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 6751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 67677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 67777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 67877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 679663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 680663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis friend class PCHStmtReader; 681663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis friend class PCHStmtWriter; 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 684d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 685d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 686227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 687227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 688227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 689227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 690848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 691848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 692848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 693848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 694227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 6951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 696227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 697227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 698227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 699227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 7001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 701c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Expr(PredefinedExprClass, type, type->isDependentType(), 702773f3973cf5e2b6b8788e895967dcb3c1e6ffe79Anders Carlsson type->isDependentType()), Loc(l), Type(IT) {} 7031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 70417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 7051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 70617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 70717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 708227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 70917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 71017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 71117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 71217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 71317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 714848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 7153a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 716227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 717227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 7181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 720227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 721d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 7221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 72377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 72477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 72577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 726227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 727227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 7305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 7315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 7345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 7352333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(IntegerLiteralClass, type, false, false), Value(V), Loc(l) { 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 738a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 7390b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty integer literal. 7401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit IntegerLiteral(EmptyShell Empty) 7410b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(IntegerLiteralClass, Empty) { } 7420b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 746313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 747313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 748313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 7490b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(const llvm::APInt &Val) { Value = Val; } 7500b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 7510b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 7521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 7561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 75777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 75877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 75977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 765c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 768c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 7692333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(CharacterLiteralClass, type, false, false), Value(value), Loc(l), 7702333f7727f97018d6742e1e0938133bcfad967abEli Friedman IsWide(iswide) { 7715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7720b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 7730b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 7740b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 7750b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 776018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 777c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 7781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 7801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7830b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 7840b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 7850b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 7860b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 7871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 7895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 79177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 79277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 79377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 79477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 798525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner llvm::APFloat Value; 799720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FloatingLiteral(const llvm::APFloat &V, bool isexact, 803720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 8042333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(FloatingLiteralClass, Type, false, false), Value(V), 8052333f7727f97018d6742e1e0938133bcfad967abEli Friedman IsExact(isexact), Loc(L) {} 8065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 80717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 8081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 80917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(FloatingLiteralClass, Empty), Value(0.0) { } 81017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 811c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner const llvm::APFloat &getValue() const { return Value; } 81217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setValue(const llvm::APFloat &Val) { Value = Val; } 81317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 814720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 81517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 816c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 817da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 818da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 819da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 820da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 8211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 82317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 82417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 8295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 8311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 83277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 83377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 83477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8375d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 8385d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 8395d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 8405d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 8415d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 8425d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 8435549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 8445d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 8455d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 8462333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ImaginaryLiteralClass, Ty, false, false), Val(val) {} 8471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 848cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 8491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 850cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 851cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8525549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 8535549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 854cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 855cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8565d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 8571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 8595d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 8605d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 8611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8625d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 8635d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 8645d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 8655d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 8665d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 867e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 868e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 869e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 870a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 871c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 872c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 873690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 874690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 8758bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 876690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 877c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 878c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 879c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 880c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 881c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 882c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 8835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 8855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 8865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 887726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 888726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 8892085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 8902333f7727f97018d6742e1e0938133bcfad967abEli Friedman StringLiteral(QualType Ty) : Expr(StringLiteralClass, Ty, false, false) {} 8911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 89242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 89342602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext &C); 89442602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8962085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 8972085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 8982085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 8992085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 900a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 9012085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 9022085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 9031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 9042085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 9052085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 9062085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 9072085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 908a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 909673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 910673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 911673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 912b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 913b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 914b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 915b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar // FIXME: These are deprecated, replace with StringRef. 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 918673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 919673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 920b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 921673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 923673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 924673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 9258d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 926b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 927b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 928b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 92933fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 93033fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 93133fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 932726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 933726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 934726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 9351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 936726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 937726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 938726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 939726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 9401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 941673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 942673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 943673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 944673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 945b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 946b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 947b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 9501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 9515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 9561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 95777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 95877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 95977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 9635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 9645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 9665549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 969898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 9701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump val->isTypeDependent(), val->isValueDependent()), 971898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 9721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 973c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 9741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 975c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 976c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 9775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 9785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 979c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 980c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 981866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 983313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 984313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 985c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 986313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 987313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 988313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 989c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 990313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 9911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 9935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 9951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 99677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 99777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 99877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10020518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 10030518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1005dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1006dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1007dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1008dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1009dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1010dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1011dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 101273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 10131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// subexpression is a compound literal with the various MemberExpr and 10148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// ArraySubscriptExpr's applied to it. (This is only used in C) 101573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 101813d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 102673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner Extension, // __extension__ marker. 102773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner OffsetOf // __builtin_offsetof 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 10295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 10305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 10331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 10345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 10369103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 10379103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isTypeDependent() && opc != OffsetOf, 10381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump input->isValueDependent()), 10399103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor Val(input), Opc(opc), Loc(l) {} 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10410b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 10421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 10430b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(UnaryOperatorClass, Empty), Opc(AddrOf) { } 10440b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 10460b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 10470b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 10490b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 10500b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 10525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 10530b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 10540b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 10562085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 10572085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PostInc || Op == PostDec; 10582085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10605a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 10612085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 10622085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PreInc || Op == PreDec; 10632085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 10645a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 10655a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek bool isPrefix() const { return isPrefix(Opc); } 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 10675d826b82936beb2c32dd02460332ba8035192c65Ted Kremenek bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 10685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 10695a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson bool isOffsetOfOp() const { return Opc == OffsetOf; } 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 10711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isArithmeticOp() const { return isArithmeticOp(Opc); } 10721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 10755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 10765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1077bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1078bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1079bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1080bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1081bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1082bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1083bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1084bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 10921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 10971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 109877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 109977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 110077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 11048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 11058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 11068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 11078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1108c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// double d; 11098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 11108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 11118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 11128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 11138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 11148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1115c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 11168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 11188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 11198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 11208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 11218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 11228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 11238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1124cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 11258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1126cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 11278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1128cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1129cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1130cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1131cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1132cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 11338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 11348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 11368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1137c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 11398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1140c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 11428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1143c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - An unsigned index into the array of Expr*'s stored after this node 11448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 11458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 11468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 11478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1148c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - A CXXBaseSpecifier*, for references that look at a field in a 1149cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 11508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1151c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 11538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1154c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 11558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 11568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1157c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1159c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 11608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1161c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 11628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1163c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 11658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 11668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1167c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 11688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1169cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1170cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1171cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1172cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1173c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1175c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt Kind getKind() const { 11768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 11778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1178c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 11808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 11818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 11828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 11838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 11848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 11858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 11878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 11888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1189cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 11908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1191c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 11938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 11948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1195c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1196cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1197cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1198cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1199c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1200cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1201c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 12038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 12048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 12058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1206c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// contains the location of the period (if there is one) and the 12078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 12088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange getRange() const { return Range; } 12098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 12108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1212c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 12148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 12158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 12168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 12178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 12188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 12198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1220c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1221c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfExpr(ASTContext &C, QualType type, 12228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1223c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 12248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 12258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 12268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 12288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1229c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 12308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1232c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1233c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *Create(ASTContext &C, QualType type, 1234c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1235c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 12368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 12378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 12388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1239c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *CreateEmpty(ASTContext &C, 12408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 12418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 12438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 12448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 12458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 12478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 12488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1249c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 12518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 12528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 12548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 12558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1256c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor const OffsetOfNode &getComponent(unsigned Idx) { 12588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 12598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<OffsetOfNode *> (this + 1)[Idx]; 12608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 12638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 12648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 12658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1266c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 12688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 12698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 12728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 12738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 12748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 12758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 12788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 12798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 12808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 12818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1282c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 12848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 12858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual SourceRange getSourceRange() const { 12888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 12898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 12928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 12938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 12968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 12988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_begin(); 12998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_end(); 13008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 13018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13020518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 13030518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 13040518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 13050518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 13060518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1307d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1308a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1309d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1310d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 13115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 131242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 131342602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 131442602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 131542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 13165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1317a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall SizeOfAlignOfExpr(bool issizeof, TypeSourceInfo *TInfo, 13180518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 13190518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 13202850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl Expr(SizeOfAlignOfExprClass, resultType, 1321ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 13222850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1323a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TInfo->getType()->isDependentType()), 1324ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 1325a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1326ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1327ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 13281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, Expr *E, 1329ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 1330ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 1331ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Expr(SizeOfAlignOfExprClass, resultType, 1332ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1333ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1334ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 1335ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 1336ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1337d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 13380518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 13390b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 13400b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 13410b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 13420b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 13440b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 13450b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13460518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 13470518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 13485ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 13495ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1350a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 13510518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 13525ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 13530518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1354caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 13550518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1356d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 13570518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1358caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1359caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 1360caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 13610b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13620b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1363a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1364a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 13651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 13660b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 13670b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13680518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 13690518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 13700518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 13710518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 13720518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 13730518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 137476e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 13750b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 13760b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13770b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 13780b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1379866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1380866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 1381866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1382866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 13835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 13851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == SizeOfAlignOfExprClass; 13865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13870518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 13881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 138977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 139077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 139177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 13925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 13955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 13965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 13975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 13995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 140077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 14011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 14025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 14035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14042324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 140573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 14062850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl : Expr(ArraySubscriptExprClass, t, 14072850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 14082850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 14092850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 141073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 141173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 141273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 14131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1414cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1415cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1416cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1417cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 14182324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 14192324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 14202324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 14212324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 14222324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 142333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 142433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 142533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 142633fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 14275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 14285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1429cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1430cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 14315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 14325549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1433cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 14341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 14365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 143777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 14381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 14405549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 14412324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 14421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 14445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 14452324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 14461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 144777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 14485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 14491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 14501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 145277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 14535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1455026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1456cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1457cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 14585cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 14595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 14625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 14641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 146577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 146677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 146777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 14685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1471b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 14721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1473b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 14741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1475b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1476b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 14775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 147877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 14795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 14815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 14821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1483b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1484b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 1485668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 1486668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek QualType t, SourceLocation rparenloc); 148742602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 148842602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 14891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 14925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 14931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14941f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1495ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 14961f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1497668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek ~CallExpr() {} 14981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 15005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 150118b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1502a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1503d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 1504d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 1505d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 1506d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 1507d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 1508a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1509a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1510bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1511bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1512bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1513a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 15145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 15155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 15165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 15171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 15195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 15205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 15215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 15225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 15245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 15255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 15265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1528934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1529934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1530934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1531934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 1532934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 15331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1534d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1535d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1536d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 15378189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 15381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 15405549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 15411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1542d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1543d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 15445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 15455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 15461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 15485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 15495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 15505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1551cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1552cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 15533c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 15541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 15561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 15576dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 15586dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 15591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1560d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 15611f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1562866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 15631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 156477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 15655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15684bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 15694bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 15705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 157288a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 157377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 157477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 157577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 15765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1578ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 15795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 15816bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 15826bb8017bb9e828d118e15e59d71c66bba323c364John McCall struct MemberNameQualifier : public NameQualifier { 1583161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 15846bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 15856bb8017bb9e828d118e15e59d71c66bba323c364John McCall 1586ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1587ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 15885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 15891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1590ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1591ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1592f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 15931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1594ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 15955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 15961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1597ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 159883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 15991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 160083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 16016bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 16026bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 1603c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 16046bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 16051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1606c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1607c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1608c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1609c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 16106bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 1611c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 16121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 161383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 16146bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 16156bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 16166bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 161783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 161883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 161983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 16206bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 1621c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1622c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 16231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1624c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1625c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1626c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 1627c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 162883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 16291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16306bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1631c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 16321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1633c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 1634c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor getMemberQualifier() + 1); 1635c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 16361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1637c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1638c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1639c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 1640c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getExplicitTemplateArgumentList(); 164183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 16421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1644f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1645f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman SourceLocation l, QualType ty) 16461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(MemberExprClass, ty, 1647ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 164883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow), 16496bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1650510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 16511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 165283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 1653161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 1654c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation l, 1655d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1656c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor QualType ty); 16571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 165888a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 16595549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 166057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 166157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 166257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 166357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 166457e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1665f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1666f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 16671f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 16686bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1669161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 16706bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1671161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1672161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 16736bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 16746bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 16756bb8017bb9e828d118e15e59d71c66bba323c364John McCall 16761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 16770979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 16780979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 16796bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 16801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 168183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 168283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 168383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 16841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 16856bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 168683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 16871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 168883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 168983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 16901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 169283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 169383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 16941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 16956bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 169683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 16971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 169883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 169983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1700c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1701c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1702c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1703d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall bool hasExplicitTemplateArgumentList() const { 17041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1705c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1707d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1708d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1709d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1710d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall if (hasExplicitTemplateArgumentList()) 1711d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall getExplicitTemplateArgumentList()->copyInto(List); 1712d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 1713c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 17141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1715c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 17161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1717c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1718c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 17191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1720c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->LAngleLoc; 1721c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1723c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1724c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1725833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1726c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 17271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 17281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1729c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->getTemplateArgs(); 1730c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1732c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1733c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 17341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1735c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 17361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 17371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1738c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->NumTemplateArgs; 1739c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1742c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 17431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1744c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1745c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 17461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1747c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->RAngleLoc; 1748c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 17511f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 17521f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1753ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1754ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1755026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 17561f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 17575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 175972527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 176072527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 1761c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation EndLoc = MemberLoc; 1762c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (HasExplicitTemplateArgumentList) 1763c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor EndLoc = getRAngleLoc(); 17641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 176572527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 176672527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1767c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1768c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 17695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 17725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 177483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 17755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 17771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17781237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 17791237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 17801237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 17815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 1784aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1785aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 17860fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 17870fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 17880fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 17890fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 17901d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 17911d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 17921d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 179342f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 17945549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1795e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1796aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 17972333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can compound literals be value-dependent? 179842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 17991d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall QualType T, Expr *init, bool fileScope) 18001d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall : Expr(CompoundLiteralExprClass, T, 180142f56b50062cd3b3c6b23fdb9053578ae9145664John McCall tinfo->getType()->isDependentType(), false), 180242f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 18031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1804ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1805ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1806ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1807ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 18085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 18095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1810ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1811e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1812e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1813ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1814ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 18150fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1816ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1817ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 181842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 181942f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 182042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 182173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 18220fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 18230fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 18240fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 18250fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 182673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 18270fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 182873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1829aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 18301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 18311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 1832aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1833aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 18341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18351237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18361237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18371237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1838aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1839aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 184049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 184149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 184249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 184349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 18440835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 1845cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 1846cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CastKind - the kind of cast this represents. 1847cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson enum CastKind { 1848cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_Unknown - Unknown cast kind. 18491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// FIXME: The goal is to get rid of this and make all casts have a 1850cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// kind so that the AST client doesn't have to try to figure out what's 1851cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// going on. 1852cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_Unknown, 18531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1854cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_BitCast - Used for reinterpret_cast. 1855cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_BitCast, 18561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1857cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_NoOp - Used for const_cast. 18583503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson CK_NoOp, 18591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 186011de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson /// CK_BaseToDerived - Base to derived class casts. 186111de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson CK_BaseToDerived, 186211de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson 18633503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson /// CK_DerivedToBase - Derived to base class casts. 1864714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson CK_DerivedToBase, 18651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 186623cba801e11b03929c44f8cf54578305963a3476John McCall /// CK_UncheckedDerivedToBase - Derived to base class casts that 186723cba801e11b03929c44f8cf54578305963a3476John McCall /// assume that the derived pointer is not null. 186823cba801e11b03929c44f8cf54578305963a3476John McCall CK_UncheckedDerivedToBase, 186923cba801e11b03929c44f8cf54578305963a3476John McCall 1870714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson /// CK_Dynamic - Dynamic cast. 18714d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson CK_Dynamic, 18721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18734d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson /// CK_ToUnion - Cast to union (GCC extension). 1874112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson CK_ToUnion, 18751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1876112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson /// CK_ArrayToPointerDecay - Array to pointer decay. 187727a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_ArrayToPointerDecay, 18781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1879b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson // CK_FunctionToPointerDecay - Function to pointer decay. 1880b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson CK_FunctionToPointerDecay, 18811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 188227a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_NullToMemberPointer - Null pointer to member pointer. 188327a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_NullToMemberPointer, 18841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 188527a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_BaseToDerivedMemberPointer - Member pointer in base class to 188627a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// member pointer in derived class. 18879099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian CK_BaseToDerivedMemberPointer, 18889099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian 18891a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson /// CK_DerivedToBaseMemberPointer - Member pointer in derived class to 18901a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson /// member pointer in base class. 18911a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson CK_DerivedToBaseMemberPointer, 1892c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 18931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// CK_UserDefinedConversion - Conversion using a user defined type 189458d3f1af9b4efa426826816a16894986b78b2692Fariborz Jahanian /// conversion function. 18957fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian CK_UserDefinedConversion, 18967fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian 18977fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian /// CK_ConstructorConversion - Conversion by constructor 18987f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_ConstructorConversion, 1899c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 19007f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_IntegralToPointer - Integral to pointer 19017f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_IntegralToPointer, 1902c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 19037f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_PointerToIntegral - Pointer to integral 1904ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson CK_PointerToIntegral, 1905c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1906ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson /// CK_ToVoid - Cast to void. 190716a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson CK_ToVoid, 1908c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 190916a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson /// CK_VectorSplat - Casting from an integer/floating type to an extended 1910c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// vector type with the same element type as the src type. Splats the 1911f67cea84bac1d3417f0baaf1fcbc86ee126e2d87Anders Carlsson /// src expression into the destination expression. 191282debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_VectorSplat, 1913c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 191482debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_IntegralCast - Casting between integral types of different size. 191582debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_IntegralCast, 191682debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson 191782debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_IntegralToFloating - Integral to floating point. 191882debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_IntegralToFloating, 1919c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 192082debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_FloatingToIntegral - Floating point to integral. 192182debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_FloatingToIntegral, 1922c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 192382debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_FloatingCast - Casting between floating types of different size. 1924bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson CK_FloatingCast, 1925c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1926bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson /// CK_MemberPointerToBoolean - Member pointer to boolean 192792ef5d75720c032808181133e4d7c5f82230237eFariborz Jahanian CK_MemberPointerToBoolean, 192892ef5d75720c032808181133e4d7c5f82230237eFariborz Jahanian 1929c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// CK_AnyPointerToObjCPointerCast - Casting any pointer to objective-c 193092ef5d75720c032808181133e4d7c5f82230237eFariborz Jahanian /// pointer 19313b27f1a80e4e433b503efd344c909eeafaa9033cFariborz Jahanian CK_AnyPointerToObjCPointerCast, 1932c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// CK_AnyPointerToBlockPointerCast - Casting any pointer to block 19333b27f1a80e4e433b503efd344c909eeafaa9033cFariborz Jahanian /// pointer 19343b27f1a80e4e433b503efd344c909eeafaa9033cFariborz Jahanian CK_AnyPointerToBlockPointerCast 1935bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson 1936cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson }; 19371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1938cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 1939cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind Kind; 19400835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 1941409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 19427ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson /// BasePath - For derived-to-base and base-to-derived casts, the base array 19437ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson /// contains the inheritance path. 1944f1b48b7014992155286d58bb1676f9f51031d18bAnders Carlsson CXXBaseSpecifierArray BasePath; 19457ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 19467ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson void CheckBasePath() const { 1947409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 1948409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 19495cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 1950cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 1951cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 1952409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 1953409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 1954f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson assert(!BasePath.empty() && "Cast kind should have a base path!"); 1955f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 1956409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 1957409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 1958409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Unknown: 1959409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 1960409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NoOp: 1961409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 1962409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 1963409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 1964409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 1965409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 1966409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_UserDefinedConversion: 1967409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 1968409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 1969409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 1970409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 1971409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 1972409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 1973409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 1974409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 1975409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 1976409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_MemberPointerToBoolean: 1977409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 1978409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 19795cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson assert(BasePath.empty() && "Cast kind should not have a base path!"); 1980409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 1981409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 1982409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 1983409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 1984409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 19850835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 1986409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson CastExpr(StmtClass SC, QualType ty, const CastKind kind, Expr *op, 1987f1b48b7014992155286d58bb1676f9f51031d18bAnders Carlsson CXXBaseSpecifierArray BasePath) : 1988898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 1989898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 1990898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 1991898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 1992898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 1993898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 19941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ty->isDependentType() || (op && op->isValueDependent())), 19957ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson Kind(kind), Op(op), BasePath(BasePath) { 19967ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson CheckBasePath(); 1997409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 19981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1999087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 20001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CastExpr(StmtClass SC, EmptyShell Empty) 2001087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : Expr(SC, Empty) { } 20021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2003a3bddeda81ca784bed5501d79e1e7c53befaa91dAnders Carlsson virtual void DoDestroy(ASTContext &C); 2004a3bddeda81ca784bed5501d79e1e7c53befaa91dAnders Carlsson 20050835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 2006cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind getCastKind() const { return Kind; } 2007cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson void setCastKind(CastKind K) { Kind = K; } 2008f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2009f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 20100835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 20110835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2012087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2013087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 20146eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 20156eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 20166eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 20176eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 20186eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 20196eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 20206eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 202141b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2022fc89c31a329eb6b36c6dbd8b7cb945d1a831650eAnders Carlsson const CXXBaseSpecifierArray& getBasePath() const { return BasePath; } 20230745d0a648b75bd304045309276c70a755adaafbArgyrios Kyrtzidis CXXBaseSpecifierArray& getBasePath() { return BasePath; } 202441b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 20251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20264bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 20274bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 20280835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 20290835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 20301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20310835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 20320835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 20330835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 20340835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 20350835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 203649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 203749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 203849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 203949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 204049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2041bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2042bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2043bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// an lvalue. For example: 2044bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2045bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2046bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2047bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 20481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2049bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// Base& b = d; // initializer is an ImplicitCastExpr to an lvalue of type Base 2050bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2051bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 20520835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2053eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// LvalueCast - Whether this cast produces an lvalue. 2054eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool LvalueCast; 2055eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 205649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffpublic: 2057c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 2058f1b48b7014992155286d58bb1676f9f51031d18bAnders Carlsson CXXBaseSpecifierArray BasePath, bool Lvalue) 2059c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : CastExpr(ImplicitCastExprClass, ty, kind, op, BasePath), 20607ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson LvalueCast(Lvalue) { } 206190045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2062087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 20631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitCastExpr(EmptyShell Shell) 2064087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : CastExpr(ImplicitCastExprClass, Shell) { } 2065087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 20660835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 20670835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 20680835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 206990045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2070eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// isLvalueCast - Whether this cast produces an lvalue. 2071eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool isLvalueCast() const { return LvalueCast; } 2072eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 2073eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// setLvalueCast - Set whether this cast produces an lvalue. 2074eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor void setLvalueCast(bool Lvalue) { LvalueCast = Lvalue; } 2075eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 20761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 207849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 207949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 208049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 208149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 208249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 20831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 208449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 208549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 208649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 208749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 208849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 208949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 20905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 209149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 209249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 209349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 209449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 209549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 209649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// expression will be an lvalue. The reference type, however, will 209749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// not be used as the type of the expression. 20980835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 20999d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 21009d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 21019d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 210249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 210349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2104c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson ExplicitCastExpr(StmtClass SC, QualType exprTy, CastKind kind, 210541b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson Expr *op, CXXBaseSpecifierArray BasePath, 210641b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson TypeSourceInfo *writtenTy) 210741b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson : CastExpr(SC, exprTy, kind, op, BasePath), TInfo(writtenTy) {} 210849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2109db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 21101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExplicitCastExpr(StmtClass SC, EmptyShell Shell) 2111db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : CastExpr(SC, Shell) { } 2112db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 211349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 21149d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 21159d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 21169d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 21179d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 21189d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 211949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 212049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 21219d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 212249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 21231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21244bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 21254bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 212649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 212749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 212849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 212949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 21306eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 213149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 213249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 21336eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2134b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2135b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 21365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 21379d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall CStyleCastExpr(QualType exprTy, CastKind kind, Expr *op, 213841b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson CXXBaseSpecifierArray BasePath, TypeSourceInfo *writtenTy, 213941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 214041b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson : ExplicitCastExpr(CStyleCastExprClass, exprTy, kind, op, BasePath, 214141b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 214249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2143db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 21441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit CStyleCastExpr(EmptyShell Shell) 2145db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : ExplicitCastExpr(CStyleCastExprClass, Shell) { } 2146db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2147b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2148db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2149db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2150b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2151db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2152db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 21535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 2154b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 21555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 21585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21596eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 21605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 21615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21623fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 21633fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 21643fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 21653fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 21663fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 21673fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 21683fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 21693fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 21703fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 21713fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 21723fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 21733fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 21743fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 21753fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 21763fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 21773fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 21783fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 21793fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 21805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 21815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 21825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 21835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 218403d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 2185224605064a4ef87d1c3d35ad1cb363f8b534012bSebastian Redl PtrMemD, PtrMemI, // [C++ 5.5] Pointer-to-member operators. 21865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 21875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 21885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 21895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 21905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 21915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 21925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 21935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 21945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 21955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 21965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 21975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 21985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 21995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 22005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 22015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 22025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 22035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 220417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 220517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 22065549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 220717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner Opcode Opc; 220817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc; 22091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 22101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 221117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 221217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2213898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 2214898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 22151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump lhs->isValueDependent() || rhs->isValueDependent()), 2216898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 22171237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 22181237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 22191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 22205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 22215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2223db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 22241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 2225db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : Expr(BinaryOperatorClass, Empty), Opc(Comma) { } 2226db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 222717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2228db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2229db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 2231db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2232db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22335549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2234db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 22355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2236db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2237db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 22395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 22405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 22435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 22445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 22455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2246063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2247063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2248063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2249063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2250063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2251063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2252063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2253063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 22545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 22555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 2256ba0f61cf5363f80e3241dc754235dfb246afe320Jordy Rose static bool isAdditiveOp(Opcode Opc) { return Opc == Add || Opc == Sub; } 2257ba0f61cf5363f80e3241dc754235dfb246afe320Jordy Rose bool isAdditiveOp() const { return isAdditiveOp(Opc); } 225840a5ef90ac8d3f29bc8fe4ff80e00eaf3ef5b79fTed Kremenek static bool isShiftOp(Opcode Opc) { return Opc == Shl || Opc == Shr; } 225940a5ef90ac8d3f29bc8fe4ff80e00eaf3ef5b79fTed Kremenek bool isShiftOp() const { return isShiftOp(Opc); } 2260aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 2261aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl static bool isBitwiseOp(Opcode Opc) { return Opc >= And && Opc <= Or; } 2262aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl bool isBitwiseOp() const { return isBitwiseOp(Opc); } 2263f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 2264f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isRelationalOp(Opcode Opc) { return Opc >= LT && Opc <= GE; } 2265f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isRelationalOp() const { return isRelationalOp(Opc); } 2266f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 22671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool isEqualityOp(Opcode Opc) { return Opc == EQ || Opc == NE; } 2268f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isEqualityOp() const { return isEqualityOp(Opc); } 22691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2270aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl static bool isComparisonOp(Opcode Opc) { return Opc >= LT && Opc <= NE; } 2271aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl bool isComparisonOp() const { return isComparisonOp(Opc); } 2272aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 2273f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isLogicalOp(Opcode Opc) { return Opc == LAnd || Opc == LOr; } 2274f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isLogicalOp() const { return isLogicalOp(Opc); } 2275f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 22765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 22775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 22785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 22791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 22814bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 22824bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 22835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 22851237c673c07f9d827129ba02720108816abde562Ted Kremenek 22861237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 22871237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 22881237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 22891237c673c07f9d827129ba02720108816abde562Ted Kremenek 22905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 229117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 22922333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 22932333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(CompoundAssignOperatorClass, ResTy, 22942333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 22952333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isValueDependent() || rhs->isValueDependent()), 22962333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 22971237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 22981237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 22995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2300ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 23011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 2302ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(SC, Empty), Opc(MulAssign) { } 23035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 23065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 23075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 23085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 23095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 23105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 23115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2312ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2313ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 23145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 23155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 2316ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 2317ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 231817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 231917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 2320ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2321ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 23221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 23235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 23245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2326ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2327ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2328ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2329ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2330ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2331ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2332ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2333ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2334ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2335ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2336ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2337ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2338ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 23395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 23401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 23411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 23425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 23465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 23475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 23485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 23491237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 23505549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 235147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 23525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 235347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 235447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation CLoc, Expr *rhs, QualType t) 2355898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 2356898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2357898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2358898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 2359898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 23601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 2361898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 236247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor (rhs && rhs->isValueDependent()))), 236347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 236447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 23651237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 23661237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 23671237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 23681237c673c07f9d827129ba02720108816abde562Ted Kremenek } 23695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2370ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2371ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 2372ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 2373ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2374395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 2375395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 23765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2377ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 2378395a2abf0028968d85958610e393e067885dc14fTed Kremenek 2379395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2380395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 2381395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 2382395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 2383395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 23841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // is only evaluated once. 2385395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 23865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 2387395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 23881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2389395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2390395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 23915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 23921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23935549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 2394ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 2395ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 23965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2397ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 23985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 239947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 240047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 240147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 240247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 240347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 240447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 24055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 24065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 24075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 24105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 24121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24131237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 24141237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 24151237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 24165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24186481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 24196481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 24205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 24215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 24225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 24236481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 24246481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 24252333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(AddrLabelExprClass, t, false, false), 24262333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 24271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24287d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 24291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 24307d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 24317d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 24327d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 24337d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 24347d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 24357d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 24367d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 24375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 24385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 24395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 24427d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 24437d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 24445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 24451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 24465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24476481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 24481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24491237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 24501237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 24511237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 24525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2453ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2454ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2455ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2456ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2457ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 24585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2459ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2460ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 24612333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2462d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2463d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 24642333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(StmtExprClass, T, T->isDependentType(), false), 24652333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 24661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24676a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 24686a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 24696a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 24705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 24715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 24726a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 24736a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 2474ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 2475ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2476ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 24771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2478026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 24796a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2480026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 24816a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 24821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2483ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 24841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2485ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2486ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 24871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24881237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 24891237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 24901237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2491ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2492ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2493dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 2494d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 2495d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 2496d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 2497d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 2498d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type1; 2499d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type2; 2500363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2501d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 25021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 25031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType t1, QualType t2, SourceLocation RP) : 25042333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(TypesCompatibleExprClass, ReturnType, false, false), 25052333f7727f97018d6742e1e0938133bcfad967abEli Friedman Type1(t1), Type2(t2), BuiltinLoc(BLoc), RParenLoc(RP) {} 2506d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 250744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 250844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 250944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 251044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 25117f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType1() const { return Type1; } 251244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType1(QualType T) { Type1 = T; } 25137f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType2() const { return Type2; } 251444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType2(QualType T) { Type2 = T; } 25151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 251644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 251744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 25181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 251944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 252044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 25211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2522d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 2523363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2524d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2525d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 25261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == TypesCompatibleExprClass; 2527d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2528d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 25291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25301237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25311237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25321237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2533d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 2534d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2535d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2536d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2537d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2538d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2539d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2540d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2541d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2542d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2543d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2544d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2545d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2546d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2547d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 25485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2549d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2550d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2551888376a2bbcfc2f047902249f8455918e2489ae1Nate Begemanprotected: 25521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void DoDestroy(ASTContext &C); 2553888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman 2554d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 25552333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can a shufflevector be value-dependent? Does type-dependence need 25562333f7727f97018d6742e1e0938133bcfad967abEli Friedman // to be computed differently? 2557a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 25581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 25591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation RP) : 25602333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(ShuffleVectorExprClass, Type, Type->isDependentType(), false), 25612333f7727f97018d6742e1e0938133bcfad967abEli Friedman BuiltinLoc(BLoc), RParenLoc(RP), NumExprs(nexpr) { 25621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2563a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 2564d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 2565d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 2566d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 256794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 256894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 25691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 257094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 257194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 257294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 257394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 25741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 257594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 257694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 257794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2578d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 2579d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2580d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2581d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 25821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2583d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2584d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 25851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2586888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman ~ShuffleVectorExpr() {} 25871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2588d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2589d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2590d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2591d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 25921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2593d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2594d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2595d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 25965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2597d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2598d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2599d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 26005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2601d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 26021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2603888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 260494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2605dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2606dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 26079a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2608d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 26091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2610d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 2611d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 2612d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 2613d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2614d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2615d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 26161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2617d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 26187976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 26197976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 26207976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 26217976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 26227976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 26237976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2624d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 26251237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 26265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2627d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2628d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2629d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 2630ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2631ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor : Expr(ChooseExprClass, t, TypeDependent, ValueDependent), 26321237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 26331237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 26341237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 26351237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 26361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 26377976932a1c256d447316ffac58e9821417725e34Eli Friedman 263844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 263944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 264044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 26417976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 26427976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 264327437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 26447976932a1c256d447316ffac58e9821417725e34Eli Friedman 26457976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 26467976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 26477976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 26487976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 26497976932a1c256d447316ffac58e9821417725e34Eli Friedman } 26507976932a1c256d447316ffac58e9821417725e34Eli Friedman 26515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 265244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 26535549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 265444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 26555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 265644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 265744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 265844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 265944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 26601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 266144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 266244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 26631237c673c07f9d827129ba02720108816abde562Ted Kremenek 2664d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2665d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2666d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2667d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 26681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2669d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2670d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 26711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26721237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26731237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26741237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2675d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2676d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 26772d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 26782d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 26792d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 26802d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 26812d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 26822d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 26832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 26842d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 26852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 26862d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 26872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 26881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 26892333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(GNUNullExprClass, Ty, false, false), TokenLoc(Loc) { } 26902d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 269144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 269244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 269344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 26942d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 26952d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 269644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 26972d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 26982d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 26992d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 27002d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 27012d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 27021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 27032d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 27042d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 27051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27062d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 27072d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 27082d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 27092d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 27102d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 271174626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 27127c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 27135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 27147c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 27157c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 27167c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 27172333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(VAArgExprClass, t, t->isDependentType(), false), 27187c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson Val(e), 27197c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 27207c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 27211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 272274626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 2723d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2724d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 27255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 27265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2727d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2728d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2729d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2730d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 27311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2732d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2733d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2734d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 27357c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 27367c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 27371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 27387c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 27397c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 27407c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 27417c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 27421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27437c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 27447c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 27451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 27467c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 27471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 27494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 27504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 27514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 27524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 27534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 27544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 27554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 27564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2757196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 27584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 27594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 27604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 27614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 27624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 27634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 27644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 27654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2766196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 27674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 27684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 27694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 27704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 27714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 27724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 27734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 27743498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 27754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 27764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 27774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2778196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 27794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 27804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 27814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 27824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 27834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 27844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 278566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 2786ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 2787709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 2788709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 278966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 27901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 27924c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 27934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 27944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 27950bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 27960bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 27970bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 27980bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2799a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2800a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2801a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2802a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 280366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 2804709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 2805709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 2806ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 2807d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2808d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2809709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 2810709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 28111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2812ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 28131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getInit(unsigned Init) const { 2815c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 28164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 281766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 28181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getInit(unsigned Init) { 2820c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 28214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 282266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 28231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 2825c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 28269e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 28279e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2828c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2829fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2830709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 28311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 28334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 28344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 28354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 28364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 28374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 28384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 28394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 28404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 28414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 28424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 28434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 28444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 28454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 28464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 2847709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 2848c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 28490bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 28500bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 28510bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 28520bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 28530bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 28540bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 28550bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 28560bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 28570bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2858c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 2859c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 2860b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 2861b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 2862b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 28631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2864d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 2865d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 2866d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 286787fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 286887fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 28694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 28704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 28714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 28721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 28734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 28744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 28754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2876a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 28771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 2878d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 2879a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 2880a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 288166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 288266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 28831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 288466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 28851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 288666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 288766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 28881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 288966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 289066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 289166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 28921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2893709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 2894709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 28951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2896ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 2897ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 2898ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 2899ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 290066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 290166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 290205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 290305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 290405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 290505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 290605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 290705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 290805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 29091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 291005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 291105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 291205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 291305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 291405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 291505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 291605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 291705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 291805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 291905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 292005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 292105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 292205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 2923ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 2924ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 2925ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 2926ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2927ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 292805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 292905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 293005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 293105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2932eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 293305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 2934eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 293505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 293605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 293705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 293805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2939ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 2940ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 2941ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 2942ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 294305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 294405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 294505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 294605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 294705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2948ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2949319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 2950ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 2951eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 29529ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 29539ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 295405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2955d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 2956d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 2957d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 2958d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 295942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 29601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void DoDestroy(ASTContext &C); 296142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 2962319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void DestroyDesignators(ASTContext &C); 2963c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 296405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 296505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 296605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 296705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 296805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 296905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 297005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 297105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 297205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 297305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 29741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 297505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 297605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 29771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 297805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 297905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 298005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 298105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 298205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 298305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 298405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 298505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 298605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 298705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 298805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 298905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 299005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 299105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 299205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 29931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 299405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 299505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 299605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 299705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 299805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 299905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 300005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 300105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 300205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 300305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 300405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 300505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 300605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 300705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 300805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 300905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 301005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 301105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 301205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 301305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 301405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 301505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 301605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 301705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 301805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3019ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3020ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 302105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 30221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 30231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 302405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 302505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 302605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 302705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 302805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 302905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 303005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 30311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 303205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 303305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 303405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 303505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 303605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 303705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 303805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 303905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 304005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 30411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 304205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 304305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 304405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 304505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 304605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 304705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 304805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 304905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 305005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 305105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 305205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 305305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 305405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 305505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 305605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 305705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 305805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 305905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 306005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 306105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 306205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 306305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 306405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 306505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 306605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 306705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 306805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 306987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 307087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 307187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 307287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 307387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 307405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 307505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 307605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 307705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 307805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 307905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 308005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 308105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 308205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 308305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 308405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 308505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 308605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 308705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 308805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 308905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 309005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 309105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 309205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 309305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 309405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 309505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 30964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3097d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3098d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3099d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3100d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3101d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3102d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 31034c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 31044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 31054c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 31064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 31074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 31084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 310905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 311005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 31111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 311205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 311305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 311405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3115eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 311605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3117d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3118d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 311905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 312005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 312105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 312205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 312305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3124ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 31251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 31261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3127ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 312805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3129711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3130711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3131c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3132319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3133d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 313405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 313505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 313605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 313705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 313805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 313905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 314005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3141d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 314205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 314305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3144eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3145eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3146d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 314705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 314805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 31491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 315005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 315105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 315205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 315305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 315405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 315505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 315605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3157d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3158d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3159d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3160d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3161d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3162d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3163d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3164d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3165d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3166d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3167d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3168d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3169d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3170d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3171d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3172d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3173d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3174d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3175d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3176d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3177ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3178ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3179319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3180ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3181ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 318205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 318305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 318405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 31851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 318605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 318705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 318805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 318905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 319005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 31911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 31923498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 31933498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 31943498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 31953498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 31963498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 31971a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 31981a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 31993498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 32001a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 32011a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 32021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 32033498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 32041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 32052333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ImplicitValueInitExprClass, ty, false, false) { } 32063498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3207d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3208d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3209d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3210d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 32111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 32123498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 32133498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 32143498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 32153498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 32163498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 32173498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 32183498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 32193498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 32203498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 32213498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 32221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 322305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 322405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 32252ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32262ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 32272ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 32282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 32292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 32302ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpprotected: 32322ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual void DoDestroy(ASTContext& C); 32331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32342ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 32351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 32362ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 32372ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32382ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman ~ParenListExpr() {} 32392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 324137bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 32421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32432ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 32441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 32462ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 32472ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 32482ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 32491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 32512ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 32522ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 32532ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 32542ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 325583ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 32561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32572ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 32582ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 32592ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32602ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 32612ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 32621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 32632ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 32641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 32652ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 32662ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 32671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32682ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 32692ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 32702ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 327137bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 327237bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis friend class PCHStmtReader; 327337bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis friend class PCHStmtWriter; 32742ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 32752ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32774eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 32784eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 32794eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 32804eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3281a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3282a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3283a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3284a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3285a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 328673525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 328773525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 328873525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3289a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3290a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3291d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3292a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3293a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3294a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 3295a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 32962333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ExtVectorElementExprClass, ty, base->isTypeDependent(), 32972333f7727f97018d6742e1e0938133bcfad967abEli Friedman base->isValueDependent()), 3298d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 32991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3300d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3301d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3302d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3303d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3304a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3305a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3306d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3307d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3308d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3309d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3310d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3311d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3312d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3313d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3314a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3315a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 33161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3317a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3318a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3319a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 33201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3321a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3322a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3323a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 33241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3325a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 3326a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3327a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 33281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33292140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 33302140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 33312140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 33321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 33341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3335a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3336a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 33371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3338a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 3339a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 3340a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 3341a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3342a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3343a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 334456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 33459c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 33464eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 334756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 334856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 3349b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 33504eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3351b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 33522333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(BlockExprClass, ty, ty->isDependentType(), false), 3353b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 33549c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 335584af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 335684af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 335784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3358d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 335956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 336084af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 336184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 336256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 336356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 336456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 336556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 33669c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 33679c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 336856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 33699c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 33709c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 337156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 337256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 337356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 3374b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 33755b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 3376b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 337784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 3378b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 33791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 33809c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 33814eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 33824eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 33831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33844eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 33854eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 33864eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 33874eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 33881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33894eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 33904eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 33914eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 33921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 33934eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 33947d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 33957d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 339689f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Stmt *CopyConstructorVal; 33974eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 33982333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Fix type/value dependence! 33991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef, 340089f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian bool constAdded = false, 340189f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Stmt *copyConstructorVal = 0) 34022333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(BlockDeclRefExprClass, t, false, false), D(d), Loc(l), IsByRef(ByRef), 340389f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian ConstQualAdded(constAdded), CopyConstructorVal(copyConstructorVal) {} 340494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 340594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 340694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 340794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 340894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 34091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34104eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 34114eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 341294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 341394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 341494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 341594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 341694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 34174eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 34181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34194eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 342094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 34211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34227d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 34237d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 342489f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian 342589f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian const Expr *getCopyConstructorExpr() const 342689f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 342789f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Expr *getCopyConstructorExpr() 342889f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 342989f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian void setCopyConstructorExpr(Expr *E) { CopyConstructorVal = E; } 343094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 34311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 34321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 34334eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 34344eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 34351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34364eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 34374eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 34384eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 34394eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 34404eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 34415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 34425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 34435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3444