Expr.h revision 223f0ff6a9a5d0eaf63b98b3aa92888b4c088868
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" 1830a2e16f6c27f888dd11eba6bbbae1e980078fcbChandler Carruth#include "clang/AST/ASTVector.h" 19478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer#include "clang/AST/Decl.h" 20161755a09898c95d21bfff33707da9ca41cd53c5John McCall#include "clang/AST/DeclAccessPair.h" 215baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall#include "clang/AST/OperationKinds.h" 2230a2e16f6c27f888dd11eba6bbbae1e980078fcbChandler Carruth#include "clang/AST/Stmt.h" 2371a7605977113c795edd44fcbd2302ad49506653Argyrios Kyrtzidis#include "clang/AST/TemplateBase.h" 2430a2e16f6c27f888dd11eba6bbbae1e980078fcbChandler Carruth#include "clang/AST/Type.h" 25223f0ff6a9a5d0eaf63b98b3aa92888b4c088868Jordan Rose#include "clang/Basic/CharInfo.h" 26f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne#include "clang/Basic/TypeTraits.h" 27525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner#include "llvm/ADT/APFloat.h" 2830a2e16f6c27f888dd11eba6bbbae1e980078fcbChandler Carruth#include "llvm/ADT/APSInt.h" 293b8d116703db8018f855cbb4733ace426422623bNate Begeman#include "llvm/ADT/SmallVector.h" 30b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar#include "llvm/ADT/StringRef.h" 31aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar#include "llvm/Support/Compiler.h" 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 34c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 359852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramer class ASTContext; 3656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 37409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson class CXXBaseSpecifier; 389852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramer class CXXMemberCallExpr; 3988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 409852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramer class CastExpr; 419852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramer class Decl; 429852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramer class IdentifierInfo; 430a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola class MaterializeTemporaryExpr; 449852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramer class NamedDecl; 45f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall class ObjCPropertyRefExpr; 4656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall class OpaqueValueExpr; 479852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramer class ParmVarDecl; 489852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramer class TargetInfo; 499852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramer class ValueDecl; 5088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 517ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 52686775deca8b8685eb90801495880e3abdd844c2Chris Lattnertypedef SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; 537ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 540a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola/// \brief An adjustment to be made to the temporary created when emitting a 550a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola/// reference binding, which accesses a particular subobject of that temporary. 560a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindolastruct SubobjectAdjustment { 570a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola enum { 580a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola DerivedToBaseAdjustment, 590a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola FieldAdjustment, 600a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola MemberPointerAdjustment 610a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola } Kind; 620a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 630a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola union { 640a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola struct { 650a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola const CastExpr *BasePath; 660a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola const CXXRecordDecl *DerivedClass; 670a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola } DerivedToBase; 680a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 690a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola FieldDecl *Field; 700a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 710a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola struct { 720a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola const MemberPointerType *MPT; 730a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola Expr *RHS; 740a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola } Ptr; 750a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola }; 760a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 770a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola SubobjectAdjustment(const CastExpr *BasePath, 780a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola const CXXRecordDecl *DerivedClass) 790a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola : Kind(DerivedToBaseAdjustment) { 800a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola DerivedToBase.BasePath = BasePath; 810a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola DerivedToBase.DerivedClass = DerivedClass; 820a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola } 830a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 840a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola SubobjectAdjustment(FieldDecl *Field) 850a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola : Kind(FieldAdjustment) { 860a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola this->Field = Field; 870a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola } 880a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 890a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola SubobjectAdjustment(const MemberPointerType *MPT, Expr *RHS) 900a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola : Kind(MemberPointerAdjustment) { 910a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola this->Ptr.MPT = MPT; 920a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola this->Ptr.RHS = RHS; 930a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola } 940a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola}; 950a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1038e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCallprotected: 104f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, 105ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool TD, bool VD, bool ID, bool ContainsUnexpandedParameterPack) 106ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Stmt(SC) 107561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor { 1088e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.TypeDependent = TD; 1098e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.ValueDependent = VD; 110561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = ID; 111f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ValueKind = VK; 112f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ObjectKind = OK; 113bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = ContainsUnexpandedParameterPack; 114898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 115898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1170b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 1180b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 1190b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 121f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 1221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 1239d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 1249d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 1259d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 1269d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 1279d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 1289d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 1299d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 130905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 1318320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 132f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 1331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 1349d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 13577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 136898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 137898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 138898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 1391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 140898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 141898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 142898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 1438e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isValueDependent() const { return ExprBits.ValueDependent; } 144898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1450b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 146ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setValueDependent(bool VD) { 147ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie ExprBits.ValueDependent = VD; 148561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor if (VD) 149561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = true; 150561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 1510b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 152898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 153898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 154898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 155898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 156898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 157898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 159898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 160898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 161898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 162898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 1638e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isTypeDependent() const { return ExprBits.TypeDependent; } 164898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1650b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 166ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setTypeDependent(bool TD) { 167ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie ExprBits.TypeDependent = TD; 168561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor if (TD) 169561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = true; 170561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 171561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor 172561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \brief Whether this expression is instantiation-dependent, meaning that 173561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// it depends in some way on a template parameter, even if neither its type 174561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// nor (constant) value can change due to the template instantiation. 175561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 176561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// In the following example, the expression \c sizeof(sizeof(T() + T())) is 177561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// instantiation-dependent (since it involves a template parameter \c T), but 178561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// is neither type- nor value-dependent, since the type of the inner 179561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \c sizeof is known (\c std::size_t) and therefore the size of the outer 180561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \c sizeof is known. 181561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 182561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \code 183561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// template<typename T> 184561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// void f(T x, T y) { 185561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// sizeof(sizeof(T() + T()); 186561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// } 187561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \endcode 188561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 189ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool isInstantiationDependent() const { 190ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return ExprBits.InstantiationDependent; 191561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 192ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 193561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \brief Set whether this expression is instantiation-dependent or not. 194ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setInstantiationDependent(bool ID) { 195561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = ID; 196561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 1970b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 198d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Whether this expression contains an unexpanded parameter 1994e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// pack (for C++11 variadic templates). 200d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 201d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// Given the following function template: 202d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 203d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \code 204d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// template<typename F, typename ...Types> 205d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// void forward(const F &f, Types &&...args) { 206d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// f(static_cast<Types&&>(args)...); 207d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// } 208d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \endcode 209d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 210d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// The expressions \c args and \c static_cast<Types&&>(args) both 211d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// contain parameter packs. 212ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool containsUnexpandedParameterPack() const { 213ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return ExprBits.ContainsUnexpandedParameterPack; 214d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 215d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 216bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// \brief Set the bit that describes whether this expression 217bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// contains an unexpanded parameter pack. 218bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void setContainsUnexpandedParameterPack(bool PP = true) { 219bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = PP; 220bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor } 221bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 2244f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY; 2251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 226026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 227a6115068cde719142eb394db88612c185cabd05bEli Friedman /// be warned about if the result is unused. If so, fill in expr, location, 228a6115068cde719142eb394db88612c185cabd05bEli Friedman /// and ranges with expr to warn on and source locations/ranges appropriate 229a6115068cde719142eb394db88612c185cabd05bEli Friedman /// for a warning. 230a6115068cde719142eb394db88612c185cabd05bEli Friedman bool isUnusedResultAWarning(const Expr *&WarnExpr, SourceLocation &Loc, 231a6115068cde719142eb394db88612c185cabd05bEli Friedman SourceRange &R1, SourceRange &R2, 232a6115068cde719142eb394db88612c185cabd05bEli Friedman ASTContext &Ctx) const; 2331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2347eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// isLValue - True if this expression is an "l-value" according to 2357eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the rules of the current language. C and C++ give somewhat 2367eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// different rules for this concept, but in general, the result of 2377eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// an l-value expression identifies a specific object whereas the 2387eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// result of an r-value expression is a value detached from any 2397eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// specific storage. 2405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2414e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// C++11 divides the concept of "r-value" into pure r-values 2427eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// ("pr-values") and so-called expiring values ("x-values"), which 2437eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// identify specific objects that can be safely cannibalized for 2447eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// their resources. This is an unfortunate abuse of terminology on 2457eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the part of the C++ committee. In Clang, when we say "r-value", 2467eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// we generally mean a pr-value. 2477eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isLValue() const { return getValueKind() == VK_LValue; } 2487eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isRValue() const { return getValueKind() == VK_RValue; } 2497eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isXValue() const { return getValueKind() == VK_XValue; } 2507eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isGLValue() const { return getValueKind() != VK_RValue; } 2517eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall 2527eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall enum LValueClassification { 2535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 256fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 25786f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 258077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian LV_InvalidMessageExpression, 2592514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 260e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 26136d02af300a207242f0486b4255420d8be796b21Richard Smith LV_ClassTemporary, 26236d02af300a207242f0486b4255420d8be796b21Richard Smith LV_ArrayTemporary 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 2647eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// Reasons why an expression might not be an l-value. 2657eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall LValueClassification ClassifyLValue(ASTContext &Ctx) const; 26653202857c60214d80950a975e6e52aebf30bd16aEli Friedman 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 271fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 273ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 2745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 2764f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 277ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 27886f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 2792514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 280e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 281077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian MLV_InvalidMessageExpression, 28236d02af300a207242f0486b4255420d8be796b21Richard Smith MLV_ClassTemporary, 28336d02af300a207242f0486b4255420d8be796b21Richard Smith MLV_ArrayTemporary 2845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 285ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 286ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// does not have an incomplete type, does not have a const-qualified type, 287ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// and if it is a structure or union, does not have any member (including, 288ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// recursively, any member or element of all contained aggregates or unions) 289ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// with a const-qualified type. 290ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// 291ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// \param Loc [in,out] - A source location which *may* be filled 292ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// in with the location of the expression making this a 293ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// non-modifiable lvalue, if specified. 29444e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 29544e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 2961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2974e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// \brief The return type of classify(). Represents the C++11 expression 2982111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 2992111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 3002111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 3012111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 3022111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 3032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 3042111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 3052111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 3062111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 3071c860d5640e8eebb11a5d515a761242b66761b0bPeter Collingbourne CL_AddressableVoid, // Void expression whose address can be taken in C. 3082111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 3092111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 3102111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 31136d02af300a207242f0486b4255420d8be796b21Richard Smith CL_ClassTemporary, // A temporary of class type, or subobject thereof. 31236d02af300a207242f0486b4255420d8be796b21Richard Smith CL_ArrayTemporary, // A temporary of array type. 313077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian CL_ObjCMessageRValue, // ObjC message is an rvalue 3142111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 3152111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 3162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 3172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 3182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 3192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 3202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 3212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 3222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 3232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 3242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 3252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 3262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 3272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 3282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 3302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 3312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 3332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 3342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 3362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 3372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 3382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 3402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 3412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 3432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 3442111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 3452111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 3462111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3472111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 3482111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 3492111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 3502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 3512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 3522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 353ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3542c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor /// \brief Create a simple, modifiably lvalue 3552c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor static Classification makeSimpleLValue() { 3562c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor return Classification(CL_LValue, CM_Modifiable); 3572c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor } 358ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 3604e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// \brief Classify - Classify this expression according to the C++11 3612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 3622111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 3634e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// C++11 defines ([basic.lval]) a new taxonomy of expressions to replace the 3642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 3652111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 3662111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 3672111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 3682111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 3692111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 3702111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 3712111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 3722111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 3732111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 3742111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3752111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 376369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief ClassifyModifiable - Classify this expression according to the 3774e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// C++11 expression taxonomy, and see if it is valid on the left side 3782111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 3792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 3802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 3812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 3822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 3832111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 3842111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 3852111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 3862111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3872111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 388f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKindForType - Given a formal return or parameter type, 389f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// give its value kind. 390f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static ExprValueKind getValueKindForType(QualType T) { 391f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall if (const ReferenceType *RT = T->getAs<ReferenceType>()) 3920943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall return (isa<LValueReferenceType>(RT) 3930943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue 3940943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : (RT->getPointeeType()->isFunctionType() 3950943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue : VK_XValue)); 396f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return VK_RValue; 397f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 398f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 399f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKind - The value kind that this expression produces. 400f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind getValueKind() const { 401f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprValueKind>(ExprBits.ValueKind); 402f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 403f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 404f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getObjectKind - The object kind that this expression produces. 405f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// Object kinds are meaningful only for expressions that yield an 406f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// l-value or x-value. 407f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprObjectKind getObjectKind() const { 408f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprObjectKind>(ExprBits.ObjectKind); 409f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 410f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 41156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool isOrdinaryOrBitFieldObject() const { 41256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprObjectKind OK = getObjectKind(); 41356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return (OK == OK_Ordinary || OK == OK_BitField); 41456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 41556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 416f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setValueKind - Set the value kind produced by this expression. 417f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setValueKind(ExprValueKind Cat) { ExprBits.ValueKind = Cat; } 418f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 419f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setObjectKind - Set the object kind produced by this expression. 420f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setObjectKind(ExprObjectKind Cat) { ExprBits.ObjectKind = Cat; } 421f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 4222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 4232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 4242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 4252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 4262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 42733bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 42833bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 42933bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 4305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 43138d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 43238d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 43338d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 4341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 435f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// \brief If this expression is an l-value for an Objective C 436f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// property, find the underlying property reference expression. 437f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const ObjCPropertyRefExpr *getObjCProperty() const; 438f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 439bbff82f302a1dd67589f65912351978905f0c5a7Anna Zaks /// \brief Check if this expression is the ObjC 'self' implicit parameter. 440bbff82f302a1dd67589f65912351978905f0c5a7Anna Zaks bool isObjCSelfExpr() const; 441bbff82f302a1dd67589f65912351978905f0c5a7Anna Zaks 442093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 443093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 4444919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall 4454919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall /// \brief Returns whether this expression has a placeholder type. 4464919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall bool hasPlaceholderType() const { 4474919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return getType()->isPlaceholderType(); 4484919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall } 4494919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall 4504919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall /// \brief Returns whether this expression has a specific placeholder type. 4514919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall bool hasPlaceholderType(BuiltinType::Kind K) const { 45285def357129b6cdfd69a66ad0e6994506418a2a9John McCall assert(BuiltinType::isPlaceholderTypeKind(K)); 4534919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall if (const BuiltinType *BT = dyn_cast<BuiltinType>(getType())) 4544919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return BT->getKind() == K; 4554919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return false; 4564919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall } 457ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 4582b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 4592b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 4602b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 4612b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 4622b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 463ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 4645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 4655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 4675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 468282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// 469282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// Note: This does not perform the implicit conversions required by C++11 470282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// [expr.const]p5. 471590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 472590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 4735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 474f48fdb0937e67f691393f9ffdf75653e5128ea13Richard Smith bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const; 4750e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith 47670488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith /// isCXX98IntegralConstantExpr - Return true if this expression is an 47770488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith /// integral constant expression in C++98. Can only be used in C++. 47870488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith bool isCXX98IntegralConstantExpr(ASTContext &Ctx) const; 47970488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith 4804c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// isCXX11ConstantExpr - Return true if this expression is a constant 4814c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// expression in C++11. Can only be used in C++. 482282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// 483282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// Note: This does not perform the implicit conversions required by C++11 484282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// [expr.const]p5. 4854c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith bool isCXX11ConstantExpr(ASTContext &Ctx, APValue *Result = 0, 4864c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith SourceLocation *Loc = 0) const; 4874c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith 488745f5147e065900267c85a5568785a1991d4838fRichard Smith /// isPotentialConstantExpr - Return true if this function's definition 489745f5147e065900267c85a5568785a1991d4838fRichard Smith /// might be usable in a constant expression in C++11, if it were marked 490745f5147e065900267c85a5568785a1991d4838fRichard Smith /// constexpr. Return false if the function can never produce a constant 491745f5147e065900267c85a5568785a1991d4838fRichard Smith /// expression, along with diagnostics describing why not. 492745f5147e065900267c85a5568785a1991d4838fRichard Smith static bool isPotentialConstantExpr(const FunctionDecl *FD, 493cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVectorImpl< 494745f5147e065900267c85a5568785a1991d4838fRichard Smith PartialDiagnosticAt> &Diags); 495745f5147e065900267c85a5568785a1991d4838fRichard Smith 4960e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// isConstantInitializer - Returns true if this expression can be emitted to 4970e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// IR as a constant, and thus can be used as a constant initializer in C. 4984204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 4991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5001e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalStatus is a struct with detailed info about an evaluation in progress. 5011e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalStatus { 50294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 50394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 50494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 5051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 506dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// Diag - If this is non-null, it will be filled in with a stack of notes 507dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// indicating why evaluation failed (or why it failed to produce a constant 508dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression). 509dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// If the expression is unfoldable, the notes will indicate why it's not 510dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// foldable. If the expression is foldable, but not a constant expression, 511dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// the notes will describes why it isn't a constant expression. If the 512dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression *is* a constant expression, no notes will be produced. 513cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVectorImpl<PartialDiagnosticAt> *Diag; 514dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith 515dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith EvalStatus() : HasSideEffects(false), Diag(0) {} 516e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 517e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 518e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 519e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 520e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 521e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 52294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 52394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 5241e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalResult is a struct with detailed info about an evaluated expression. 5251e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalResult : EvalStatus { 5261e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// Val - This is the value the expression can be folded to. 5271e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith APValue Val; 5281e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 5291e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // isGlobalLValue - Return true if the evaluated lvalue expression 5301e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // is global. 5311e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith bool isGlobalLValue() const; 5321e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith }; 5331e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 53451f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsRValue - Return true if this is a constant which we can fold to 53551f4708c00110940ca3f337961915f2ca1668375Richard Smith /// an rvalue using any crazy technique (that has nothing to do with language 53651f4708c00110940ca3f337961915f2ca1668375Richard Smith /// standards) that we want to, even if the expression has side-effects. If 53751f4708c00110940ca3f337961915f2ca1668375Richard Smith /// this function returns true, it returns the folded constant in Result. If 53851f4708c00110940ca3f337961915f2ca1668375Richard Smith /// the expression is a glvalue, an lvalue-to-rvalue conversion will be 53951f4708c00110940ca3f337961915f2ca1668375Richard Smith /// applied. 54051f4708c00110940ca3f337961915f2ca1668375Richard Smith bool EvaluateAsRValue(EvalResult &Result, const ASTContext &Ctx) const; 5415b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 542cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 543cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 544a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// any crazy technique that we want to, even if the expression has 545a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// side-effects. 5464ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsBooleanCondition(bool &Result, const ASTContext &Ctx) const; 547cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 54880d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith enum SideEffectsKind { SE_NoSideEffects, SE_AllowSideEffects }; 54980d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith 550a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// EvaluateAsInt - Return true if this is a constant which we can fold and 55180d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith /// convert to an integer, using any crazy technique that we want to. 55280d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith bool EvaluateAsInt(llvm::APSInt &Result, const ASTContext &Ctx, 55380d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith SideEffectsKind AllowSideEffects = SE_NoSideEffects) const; 554a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith 55551f4708c00110940ca3f337961915f2ca1668375Richard Smith /// isEvaluatable - Call EvaluateAsRValue to see if this expression can be 55651f4708c00110940ca3f337961915f2ca1668375Richard Smith /// constant folded without side-effects, but discard the result. 5574ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isEvaluatable(const ASTContext &Ctx) const; 558c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 5596ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 56060b70388e43d146d968a1cc0705b30cb2d7263feRichard Smith /// which have any effect other than producing a value. Example is a function 56160b70388e43d146d968a1cc0705b30cb2d7263feRichard Smith /// call, volatile variable read, or throwing an exception. 5624ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool HasSideEffects(const ASTContext &Ctx) const; 56351f4708c00110940ca3f337961915f2ca1668375Richard Smith 56425d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor /// \brief Determine whether this expression involves a call to any function 56525d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor /// that is not trivial. 56625d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor bool hasNonTrivialCall(ASTContext &Ctx); 56725d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor 56851f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateKnownConstInt - Call EvaluateAsRValue and return the folded 56951f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. This must be called on an expression that constant folds to an 57051f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. 571a18e70b25c85d7e653e642b5e6e58d6063af3d83Fariborz Jahanian llvm::APSInt EvaluateKnownConstInt(const ASTContext &Ctx, 572cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVectorImpl<PartialDiagnosticAt> *Diag=0) const; 573ad48a500596d7d678b99c7f94326cfa856c3b49fFariborz Jahanian 574ad48a500596d7d678b99c7f94326cfa856c3b49fFariborz Jahanian void EvaluateForOverflow(const ASTContext &Ctx, 575ad48a500596d7d678b99c7f94326cfa856c3b49fFariborz Jahanian SmallVectorImpl<PartialDiagnosticAt> *Diag) const; 57651fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 57751f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsLValue - Evaluate an expression to see if we can fold it to an 57851f4708c00110940ca3f337961915f2ca1668375Richard Smith /// lvalue with link time known address, with no side-effects. 5794ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsLValue(EvalResult &Result, const ASTContext &Ctx) const; 5801b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 581099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// EvaluateAsInitializer - Evaluate an expression as if it were the 582099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// initializer of the given declaration. Returns true if the initializer 583099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// can be folded to a constant, and produces any relevant notes. In C++11, 584099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// notes will be produced if the expression is not a constant expression. 585099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith bool EvaluateAsInitializer(APValue &Result, const ASTContext &Ctx, 586099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith const VarDecl *VD, 587cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVectorImpl<PartialDiagnosticAt> &Notes) const; 588099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith 58982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Enumeration used to describe the kind of Null pointer constant 59082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// returned from \c isNullPointerConstant(). 59182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth enum NullPointerConstantKind { 59282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is not a Null pointer constant. 59382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_NotNull = 0, 59482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 59550800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// \brief Expression is a Null pointer constant built from a zero integer 59650800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// expression that is not a simple, possibly parenthesized, zero literal. 59750800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// C++ Core Issue 903 will classify these expressions as "not pointers" 59850800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// once it is adopted. 59950800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#903 60050800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie NPCK_ZeroExpression, 60150800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie 60250800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// \brief Expression is a Null pointer constant built from a literal zero. 60350800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie NPCK_ZeroLiteral, 60482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 6054e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// \brief Expression is a C++11 nullptr. 6064e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith NPCK_CXX11_nullptr, 60782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 60882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a GNU-style __null constant. 60982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_GNUNull 61082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth }; 61182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 612ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 613ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 614ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 615ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 616ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 617ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 618ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 619ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 620ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 621ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 622ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 623ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 624ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 625ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 626ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 62782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to 62882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// a Null pointer constant. The return value can further distinguish the 62982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// kind of NULL pointer constant that was detected. 63082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantKind isNullPointerConstant( 63182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth ASTContext &Ctx, 63282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantValueDependence NPC) const; 633efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 63444baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 6351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 636102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 6371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 63811ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 63911ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 64011ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 641864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// \brief Given an expression of bound-member type, find the type 642864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// of the member. Returns null if this is an *overloaded* bound 643864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// member expression. 644864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall static QualType findBoundMemberType(const Expr *expr); 645864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 64691a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// IgnoreImpCasts - Skip past any implicit casts which might 64791a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// surround this expression. Only skips ImplicitCastExprs. 648f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreImpCasts() LLVM_READONLY; 64991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 6507e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// IgnoreImplicit - Skip past any implicit AST nodes which might 6517e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// surround this expression. 652f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreImplicit() LLVM_READONLY { 653f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar return cast<Expr>(Stmt::IgnoreImplicit()); 654f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar } 6557e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 656132283beb1b032e0acd09bdfb45dceadeea0026eJordan Rose const Expr *IgnoreImplicit() const LLVM_READONLY { 657132283beb1b032e0acd09bdfb45dceadeea0026eJordan Rose return const_cast<Expr*>(this)->IgnoreImplicit(); 658132283beb1b032e0acd09bdfb45dceadeea0026eJordan Rose } 659132283beb1b032e0acd09bdfb45dceadeea0026eJordan Rose 6604e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 6611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 6624e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 6634e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 664f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParens() LLVM_READONLY; 66556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 66656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 66727c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 668f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenCasts() LLVM_READONLY; 6691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 670ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off 671ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// any ParenExpr or ImplicitCastExprs, returning their operand. 672f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenImpCasts() LLVM_READONLY; 6732fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 6742f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// IgnoreConversionOperator - Ignore conversion operator. If this Expr is a 6752f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// call to a conversion operator, return the argument. 676f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreConversionOperator() LLVM_READONLY; 6772f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 678f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreConversionOperator() const LLVM_READONLY { 6792f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg return const_cast<Expr*>(this)->IgnoreConversionOperator(); 6802f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg } 6812f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 682f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenImpCasts() const LLVM_READONLY { 6834d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 6844d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 685ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 686f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 687f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 688f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenLValueCasts() LLVM_READONLY; 689ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 690f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenLValueCasts() const LLVM_READONLY { 691f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 692f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 6934d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 694ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 695ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 696ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 697f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenNoopCasts(ASTContext &Ctx) LLVM_READONLY; 6981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 699632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola /// Ignore parentheses and derived-to-base casts. 700632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola Expr *ignoreParenBaseCasts() LLVM_READONLY; 701632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola 702632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola const Expr *ignoreParenBaseCasts() const LLVM_READONLY { 703632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola return const_cast<Expr*>(this)->ignoreParenBaseCasts(); 704632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola } 705632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola 7066eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 7076eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 7086eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 709ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// by semantic analysis for function calls, object constructions, etc. in 7106eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 7116eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 7126eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 7136eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 714ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 715558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 716558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 717558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 7182f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 71975e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Whether this expression is an implicit reference to 'this' in C++. 72075e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitCXXThis() const; 72191a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 722f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreImpCasts() const LLVM_READONLY { 72391a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return const_cast<Expr*>(this)->IgnoreImpCasts(); 72491a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall } 725f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParens() const LLVM_READONLY { 7264e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 7274e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 728f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenCasts() const LLVM_READONLY { 72956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 73056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 731f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const LLVM_READONLY { 732ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 733ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 7341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 735cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko static bool hasAnyTypeDependentArguments(ArrayRef<Expr *> Exprs); 736898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 7378d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// \brief For an expression of class type or pointer to class type, 7388d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// return the most derived class decl the expression is known to refer to. 7390b4fe503ef00d9f8ea330850d3e3b303e9c7c876Rafael Espindola /// 7400b4fe503ef00d9f8ea330850d3e3b303e9c7c876Rafael Espindola /// If this expression is a cast, this method looks through it to find the 7418d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// most derived decl that can be inferred from the expression. 7428d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// This is valid because derived-to-base conversions have undefined 7438d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// behavior if the object isn't dynamically of the derived type. 7448d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola const CXXRecordDecl *getBestDynamicClassType() const; 7450b4fe503ef00d9f8ea330850d3e3b303e9c7c876Rafael Espindola 7460a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola /// Walk outwards from an expression we want to bind a reference to and 7470a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola /// find the expression whose lifetime needs to be extended. Record 7480a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola /// the adjustments needed along the path. 7490a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola const Expr * 7500a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola skipRValueSubobjectAdjustments( 7510a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola SmallVectorImpl<SubobjectAdjustment> &Adjustments) const; 7520a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 7530a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola /// Skip irrelevant expressions to find what should be materialize for 7540a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola /// binding with a reference. 7550a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola const Expr * 7560a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola findMaterializedTemporary(const MaterializeTemporaryExpr *&MTE) const; 7570a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 7581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 7601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 7675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 76956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 77056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// fixed type and value class. These don't correspond to concrete 77156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// syntax; instead they're used to express operations (usually copy 77256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operations) on values whose source is generally obvious from 77356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// context. 77456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass OpaqueValueExpr : public Expr { 77556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 77656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *SourceExpr; 77756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation Loc; 778ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 77956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 780ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK, 78197df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor ExprObjectKind OK = OK_Ordinary, 78297df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor Expr *SourceExpr = 0) 78356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 78497df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor T->isDependentType(), 78597df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor T->isDependentType() || 78697df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor (SourceExpr && SourceExpr->isValueDependent()), 787561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isInstantiationDependentType(), 788ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie false), 78997df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor SourceExpr(SourceExpr), Loc(Loc) { 79056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 79156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 79256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Given an expression which invokes a copy constructor --- i.e. a 79356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// CXXConstructExpr, possibly wrapped in an ExprWithCleanups --- 79456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// find the OpaqueValueExpr that's the source of the construction. 79556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static const OpaqueValueExpr *findInCopyConstruct(const Expr *expr); 79656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 79756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit OpaqueValueExpr(EmptyShell Empty) 79856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, Empty) { } 79956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 80056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Retrieve the location of this expression. 80156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getLocation() const { return Loc; } 802ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 80365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 80465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return SourceExpr ? SourceExpr->getLocStart() : Loc; 80565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 80665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 80765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return SourceExpr ? SourceExpr->getLocEnd() : Loc; 80856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 8094f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { 81056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getExprLoc(); 81156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 81256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 81356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 81456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { return child_range(); } 81556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 81656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression of an opaque value expression is the 81756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which originally generated the value. This is 81856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// provided as a convenience for analyses that don't wish to 81956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// precisely model the execution behavior of the program. 82056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 82156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression is typically set when building the 82256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which binds the opaque value expression in the first 82356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// place. 82456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getSourceExpr() const { return SourceExpr; } 82556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 82656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 82756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == OpaqueValueExprClass; 82856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 82956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 83056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 831cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// \brief A reference to a declared variable, function, enum, etc. 832cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// [C99 6.5.1p2] 833cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 834cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// This encodes all the information about how a declaration is referenced 835cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// within an expression. 836cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 837cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// There are several optional constructs attached to DeclRefExprs only when 838cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// they apply in order to conserve memory. These are laid out past the end of 839cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// the object, and flags in the DeclRefExprBitfield track whether they exist: 840cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 841cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// DeclRefExprBits.HasQualifier: 842cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has a C++ 843cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// nested-name-specifier. 8443aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// DeclRefExprBits.HasFoundDecl: 8453aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// Specifies when this declaration reference expression has a record of 8463aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// a NamedDecl (different from the referenced ValueDecl) which was found 8473aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// during name lookup and/or overload resolution. 848e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara/// DeclRefExprBits.HasTemplateKWAndArgsInfo: 849cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has an explicit 850e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara/// C++ template keyword and/or template argument list. 851f4b88a45902af1802a1cb42ba48b1c474474f228John McCall/// DeclRefExprBits.RefersToEnclosingLocal 852f4b88a45902af1802a1cb42ba48b1c474474f228John McCall/// Specifies when this declaration reference expression (validly) 853f4b88a45902af1802a1cb42ba48b1c474474f228John McCall/// refers to a local variable from a different function. 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 855cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The declaration that we are referencing. 856cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *D; 8572577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 858cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The location of the declaration name itself. 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8609e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 861cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief Provides source/type location info for the declaration name 862cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// embedded in D. 8632577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 8642577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 8656857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 8666857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc &getInternalQualifierLoc() { 8677e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth assert(hasQualifier()); 8686857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return *reinterpret_cast<NestedNameSpecifierLoc *>(this + 1); 869a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 870cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth 8716857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 8726857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth const NestedNameSpecifierLoc &getInternalQualifierLoc() const { 8736857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalQualifierLoc(); 874a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 875096832c5ed5b9106fa177ebc148489760c3bc496John McCall 8763aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Test whether there is a distinct FoundDecl attached to the end of 8773aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// this DRE. 8783aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool hasFoundDecl() const { return DeclRefExprBits.HasFoundDecl; } 8793aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8803aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 8813aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// reference occured. 8823aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *&getInternalFoundDecl() { 8833aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth assert(hasFoundDecl()); 8843aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 8853aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(&getInternalQualifierLoc() + 1); 8863aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(this + 1); 8873aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 8883aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8893aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 8903aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// reference occured. 8913aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getInternalFoundDecl() const { 8923aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalFoundDecl(); 8933aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 8943aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8953d13c5a1e72ed8f8be9c083791d30643d1b1ec43Daniel Dunbar DeclRefExpr(ASTContext &Ctx, 8963d13c5a1e72ed8f8be9c083791d30643d1b1ec43Daniel Dunbar NestedNameSpecifierLoc QualifierLoc, 897e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 898f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ValueDecl *D, bool refersToEnclosingLocal, 899f4b88a45902af1802a1cb42ba48b1c474474f228John McCall const DeclarationNameInfo &NameInfo, 9003aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD, 9012577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 902f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 9032577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 904663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 905663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 906663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 9077e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 9080da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 9090da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 9103d13c5a1e72ed8f8be9c083791d30643d1b1ec43Daniel Dunbar void computeDependence(ASTContext &C); 9119e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 913f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExpr(ValueDecl *D, bool refersToEnclosingLocal, QualType T, 914f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ExprValueKind VK, SourceLocation L, 9155b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor const DeclarationNameLoc &LocInfo = DeclarationNameLoc()) 916561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(DeclRefExprClass, T, VK, OK_Ordinary, false, false, false, false), 9175b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor D(D), Loc(L), DNLoc(LocInfo) { 918cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth DeclRefExprBits.HasQualifier = 0; 919e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara DeclRefExprBits.HasTemplateKWAndArgsInfo = 0; 9203aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth DeclRefExprBits.HasFoundDecl = 0; 9217cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = 0; 922f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExprBits.RefersToEnclosingLocal = refersToEnclosingLocal; 9233d13c5a1e72ed8f8be9c083791d30643d1b1ec43Daniel Dunbar computeDependence(D->getASTContext()); 9240da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 9251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 926a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 92740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 928e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 929dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 930f4b88a45902af1802a1cb42ba48b1c474474f228John McCall bool isEnclosingLocal, 931a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 932f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 9333aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD = 0, 9340da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 935663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 9362577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 93740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 938e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 9392577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 940f4b88a45902af1802a1cb42ba48b1c474474f228John McCall bool isEnclosingLocal, 9412577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 942f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 9433aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD = 0, 9442577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 9452577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 946663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 947663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 9483aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasQualifier, 9493aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasFoundDecl, 950e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool HasTemplateKWAndArgsInfo, 951def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor unsigned NumTemplateArgs); 9527e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 953cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *getDecl() { return D; } 954cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth const ValueDecl *getDecl() const { return D; } 955cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth void setDecl(ValueDecl *NewD) { D = NewD; } 956904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 9572577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 9582577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 9592577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 9602577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 9619e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 9620b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 963aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY; 964aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY; 9651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 966a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 967a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 968cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth bool hasQualifier() const { return DeclRefExprBits.HasQualifier; } 9697e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 9707e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 971a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 972a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 973a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 974a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 9757e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 9766857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc().getNestedNameSpecifier(); 977a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 97840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 9797e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 98040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// that precedes the name, with source-location information. 98140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 98240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 98340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 9847e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 9856857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc(); 98640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 98740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 9883aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Get the NamedDecl through which this reference occured. 9893aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// 9903aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// This Decl may be different from the ValueDecl actually referred to in the 9913aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// presence of using declarations, etc. It always returns non-NULL, and may 9923aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// simple return the ValueDecl when appropriate. 9933aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getFoundDecl() { 9943aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 9953aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 9963aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 9973aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Get the NamedDecl through which this reference occurred. 9983aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// See non-const variant. 9993aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth const NamedDecl *getFoundDecl() const { 10003aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 10013aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 10023aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 1003e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKWAndArgsInfo() const { 1004e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return DeclRefExprBits.HasTemplateKWAndArgsInfo; 1005096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 10067e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1007e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 1008e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() { 1009e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) 1010e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return 0; 1011e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 10123aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasFoundDecl()) 1013e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 10143aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalFoundDecl() + 1); 10153aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 10163aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 1017e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 10183aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalQualifierLoc() + 1); 10197e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1020e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>(this + 1); 1021e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 1022e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1023e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 1024e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() const { 1025e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return const_cast<DeclRefExpr*>(this)->getTemplateKWAndArgsInfo(); 1026e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 1027e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1028e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the template keyword preceding 1029e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// this name, if any. 1030e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getTemplateKeywordLoc() const { 1031e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 1032e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->getTemplateKeywordLoc(); 1033e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 1034e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1035e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the left angle bracket starting the 1036e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the name, if any. 1037e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getLAngleLoc() const { 1038e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 1039e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->LAngleLoc; 1040e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 1041e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1042e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the right angle bracket ending the 1043e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the name, if any. 1044e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getRAngleLoc() const { 1045e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 1046e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->RAngleLoc; 1047e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 1048e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1049e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether the name in this declaration reference 1050e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// was preceded by the template keyword. 1051e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); } 1052e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1053e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether this declaration reference was followed by an 1054e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list. 1055e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); } 1056e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1057e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the explicit template argument list that followed the 1058e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// member template name. 1059e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 1060e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara assert(hasExplicitTemplateArgs()); 1061e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return *getTemplateKWAndArgsInfo(); 1062096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 10637e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1064096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 1065096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 1066b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 1067096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 1068a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 1069d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 1070096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 1071096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 1072096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 1073e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateArgumentListInfo *getOptionalExplicitTemplateArgs() const { 1074096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 1075096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 1076096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 10777e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1078d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1079d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1080d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1081096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 1082096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 1083d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 10847e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1085a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 1086a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 1087833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1088096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 1089a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 10907e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1091096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 1092a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 10937e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1094a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1095a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 1096a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 1097096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 1098a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 10997e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1100096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 1101a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 11027e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 11037cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this expression refers to a function that 11047cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 11057cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 11067cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return DeclRefExprBits.HadMultipleCandidates; 11077cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 11087cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 11097cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a function that was resolved from an overloaded set having size 11107cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 11117cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 11127cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = V; 11137cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 11147cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 1115f4b88a45902af1802a1cb42ba48b1c474474f228John McCall /// Does this DeclRefExpr refer to a local declaration from an 1116f4b88a45902af1802a1cb42ba48b1c474474f228John McCall /// enclosing function scope? 1117f4b88a45902af1802a1cb42ba48b1c474474f228John McCall bool refersToEnclosingLocal() const { 1118f4b88a45902af1802a1cb42ba48b1c474474f228John McCall return DeclRefExprBits.RefersToEnclosingLocal; 1119f4b88a45902af1802a1cb42ba48b1c474474f228John McCall } 1120f4b88a45902af1802a1cb42ba48b1c474474f228John McCall 11211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 112299e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 112577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 112663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 11277e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 112860adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 11293397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1132d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 1133d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 1134227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 1135227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 1136227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 1137227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 113828ad063b279378b19cb0704f977429df366a151eNico Weber LFunction, // Same as Function, but as wide string. 1139848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 1140848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 1141848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 1142848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 1143227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 11441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1145227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 1146227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 1147227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 1148227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 11491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 1150f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 1151ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie type->isDependentType(), type->isDependentType(), 1152561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType(), 1153bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 1154f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 11551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 115617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 11571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 115817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 115917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1160227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 116117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 116217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 116317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 116417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 116517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1166848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 11673a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 116865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Loc; } 116965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Loc; } 1170227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 11711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 1173227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 11741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 117577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 117663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 1177227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 1178227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 11799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 11809996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 11819996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 11829996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 11839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 11849996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 11859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 11869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 11879996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 11889996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 11899996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 11909996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 11919996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 119291219326471798c7d3b02dc48691581580338969Benjamin Kramer unsigned BitWidth; 11939996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11949996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 11959996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 1196f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko APNumericStorage(const APNumericStorage &) LLVM_DELETED_FUNCTION; 1197f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko void operator=(const APNumericStorage &) LLVM_DELETED_FUNCTION; 11989996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11999996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 120091219326471798c7d3b02dc48691581580338969Benjamin Kramer APNumericStorage() : VAL(0), BitWidth(0) { } 12019996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 12029996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 12039996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 12049996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 12059996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 12069996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 12079996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 12089996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 12099996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 12109996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 12119996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 121291219326471798c7d3b02dc48691581580338969Benjamin Kramerclass APIntStorage : private APNumericStorage { 1213ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 1214ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie llvm::APInt getValue() const { return getIntValue(); } 12159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 12169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 12179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 1218bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramerclass APFloatStorage : private APNumericStorage { 1219ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 12209ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover llvm::APFloat getValue(const llvm::fltSemantics &Semantics) const { 12219ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover return llvm::APFloat(Semantics, getIntValue()); 122231dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka } 12239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 12249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 12259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 12269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 12279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 122891219326471798c7d3b02dc48691581580338969Benjamin Kramerclass IntegerLiteral : public Expr, public APIntStorage { 12295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12309996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 12319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 12329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 12339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 12349996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 1238478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer IntegerLiteral(ASTContext &C, const llvm::APInt &V, QualType type, 1239478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer SourceLocation l); 1240a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 12411dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new integer literal with value 'V' and type 'type'. 12421dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param type - either IntTy, LongTy, LongLongTy, UnsignedIntTy, 12431dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// UnsignedLongTy, or UnsignedLongLongTy which should match the size of V 12441dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param V - the value that the returned integer literal contains. 12459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 12469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 12471dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new empty integer literal. 12489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 12490b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 125065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Loc; } 125165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Loc; } 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1253313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 1254313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 1255313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 12560b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 12570b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 12581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 12605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 126277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 126363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 12645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 12675cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 12685cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum CharacterKind { 12695cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 12705cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 12715cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 12725cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 12735cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 12745cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 12755cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 12765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 12775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 12805cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor CharacterLiteral(unsigned value, CharacterKind kind, QualType type, 12815cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation l) 1282bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1283561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1284bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer Value(value), Loc(l) { 1285bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer CharacterLiteralBits.Kind = kind; 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12870b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 12880b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 12890b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 12900b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1291018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 1292bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer CharacterKind getKind() const { 1293bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer return static_cast<CharacterKind>(CharacterLiteralBits.Kind); 1294bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 12951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 129665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Loc; } 129765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Loc; } 12981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13010b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 1302bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setKind(CharacterKind kind) { CharacterLiteralBits.Kind = kind; } 13030b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 13040b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 13051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 13061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 130877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 130977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 131063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 13115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1313bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramerclass FloatingLiteral : public Expr, private APFloatStorage { 13145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 13159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 13169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 1317478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer QualType Type, SourceLocation L); 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 131917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 1320478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer explicit FloatingLiteral(ASTContext &C, EmptyShell Empty); 132117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 13229996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 13239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 13249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 13259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 13269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 1327bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer llvm::APFloat getValue() const { 13289ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover return APFloatStorage::getValue(getSemantics()); 1329bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 13309996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 13319ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover assert(&getSemantics() == &Val.getSemantics() && "Inconsistent semantics"); 1332bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer APFloatStorage::setValue(C, Val); 13339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 133417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 13359ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// Get a raw enumeration value representing the floating-point semantics of 13369ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// this literal (32-bit IEEE, x87, ...), suitable for serialisation. 13379ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover APFloatSemantics getRawSemantics() const { 13389ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover return static_cast<APFloatSemantics>(FloatingLiteralBits.Semantics); 13399ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover } 13409ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover 13419ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// Set the raw enumeration value representing the floating-point semantics of 13429ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// this literal (32-bit IEEE, x87, ...), suitable for serialisation. 13439ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover void setRawSemantics(APFloatSemantics Sem) { 13449ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover FloatingLiteralBits.Semantics = Sem; 13459ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover } 13469ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover 13479ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// Return the APFloat semantics this literal uses. 13489ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover const llvm::fltSemantics &getSemantics() const; 13499ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover 13509ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// Set the APFloat semantics this literal uses. 13519ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover void setSemantics(const llvm::fltSemantics &Sem); 13529ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover 1353bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer bool isExact() const { return FloatingLiteralBits.IsExact; } 1354bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setExact(bool E) { FloatingLiteralBits.IsExact = E; } 1355c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 1356da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 1357da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 1358da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 1359da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 13601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 136117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 136217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 136317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 136465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Loc; } 136565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Loc; } 13665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 13681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 13695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 137177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 137263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 13735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13755d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 13765d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 13775d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 13785d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 13795d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 13805d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 13815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 13825d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 13835d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 1384bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false, 1385561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1386f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 13871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1388cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 13891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 1390cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 1391cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 13925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 13935549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1394cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1395cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 139665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Val->getLocStart(); } 139765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Val->getLocEnd(); } 139865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 13991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 14015d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 14021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14035d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 140463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 14055d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 14065d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1407e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1408e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 1409e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1410a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1411c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1412c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1413690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1414690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 14158bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1416690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1417c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1418c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1419c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1420c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1421c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1422c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 14235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 14245cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 14255cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum StringKind { 14265cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 14275cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 14285cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF8, 14295cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 14305cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 14315cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 14325cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 14335cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 14343e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson friend class ASTStmtReader; 14353e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson 143664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman union { 143764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const char *asChar; 143864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint16_t *asUInt16; 143964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint32_t *asUInt32; 144064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } StrData; 144164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned Length; 14420840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned CharByteWidth : 4; 14435cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor unsigned Kind : 3; 14440840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned IsPascal : 1; 14450840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned NumConcatenated; 1446726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 14472085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1448f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1449561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false, false, 1450561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false) {} 14511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 145264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman static int mapCharByteWidth(TargetInfo const &target,StringKind k); 145364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 14545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14552085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 14562085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 14575cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor static StringLiteral *Create(ASTContext &C, StringRef Str, StringKind Kind, 145865aa6885818d4b4eea2e5a9d12085b2398148662Jay Foad bool Pascal, QualType Ty, 1459a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 14602085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 14612085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 14625cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor static StringLiteral *Create(ASTContext &C, StringRef Str, StringKind Kind, 14635cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool Pascal, QualType Ty, 14645cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation Loc) { 14655cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor return Create(C, Str, Kind, Pascal, Ty, &Loc, 1); 14662085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1467a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1468673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1469673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1470673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1471686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef getString() const { 147264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert(CharByteWidth==1 147364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman && "This function is used in places that assume strings use char"); 147464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(StrData.asChar, getByteLength()); 147564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 147664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 14770982205bade2fb4fc984c27b2ab401e683963b10James Dennett /// Allow access to clients that need the byte representation, such as 14780982205bade2fb4fc984c27b2ab401e683963b10James Dennett /// ASTWriterStmt::VisitStringLiteral(). 147964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringRef getBytes() const { 1480e91e0ae772004912285ccc3848b27208da8c045bChris Lattner // FIXME: StringRef may not be the right type to use as a result for this. 1481e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 1) 1482e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StringRef(StrData.asChar, getByteLength()); 1483e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 4) 148464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(reinterpret_cast<const char*>(StrData.asUInt32), 148564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman getByteLength()); 1486e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(CharByteWidth == 2 && "unsupported CharByteWidth"); 1487e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StringRef(reinterpret_cast<const char*>(StrData.asUInt16), 1488e91e0ae772004912285ccc3848b27208da8c045bChris Lattner getByteLength()); 1489b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 14902f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 1491ae54121c15cdd38f415f6fdda48215ab5e4dcee1Alexander Kornienko void outputString(raw_ostream &OS) const; 14928ab09da1faaa33b9fa78de59cc4e191bfe9907b5Richard Trieu 149364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman uint32_t getCodeUnit(size_t i) const { 1494e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(i < Length && "out of bounds access"); 1495e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 1) 149664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return static_cast<unsigned char>(StrData.asChar[i]); 1497e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 4) 1498e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StrData.asUInt32[i]; 1499e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(CharByteWidth == 2 && "unsupported CharByteWidth"); 1500e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StrData.asUInt16[i]; 150164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 150264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 150364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getByteLength() const { return CharByteWidth*Length; } 150464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getLength() const { return Length; } 150564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getCharByteWidth() const { return CharByteWidth; } 1506673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1507673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 150864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman void setString(ASTContext &C, StringRef Str, 150964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringKind Kind, bool IsPascal); 1510673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 15115cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor StringKind getKind() const { return static_cast<StringKind>(Kind); } 1512ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1513ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 15145cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isAscii() const { return Kind == Ascii; } 15155cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isWide() const { return Kind == Wide; } 15165cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF8() const { return Kind == UTF8; } 15175cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF16() const { return Kind == UTF16; } 15185cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF32() const { return Kind == UTF32; } 15193e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool isPascal() const { return IsPascal; } 15205cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 15218d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1522686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef Str = getString(); 1523b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1524223f0ff6a9a5d0eaf63b98b3aa92888b4c088868Jordan Rose if (!isASCII(Str[i]) || !Str[i]) 152533fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 152633fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 152733fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1528ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1529726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1530726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1531726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 15321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1533726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1534726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1535726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1536726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 15371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1538673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1539673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1540673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 1541ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 154208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 154308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 154408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 154508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 154608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 154708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 154808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 154908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 155008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 155108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1552673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1553b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1554b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1555b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 15565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 155765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return TokLocs[0]; } 155865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 155965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return TokLocs[NumConcatenated - 1]; 15605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 156165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 15621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 15645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 156677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 156763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 15685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 15715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 15725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 15735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 15745549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 15755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1577898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1578f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 1579bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->isTypeDependent(), val->isValueDependent(), 1580561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor val->isInstantiationDependent(), 1581bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->containsUnexpandedParameterPack()), 1582898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 15831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1584c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 15851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1586c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1587c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 15885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 15895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1590c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1591c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 159265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return L; } 159365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return R; } 15945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1595313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1596313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1597c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1598313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1599313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1600313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1601c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1602313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 16031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 16055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 160777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 160863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 16095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16120518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 16130518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 16145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1615dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1616dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1617dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1618dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1619dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1620dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1621dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 16225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 16235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16245baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 16255baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 16265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 16270799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 16285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 16290799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 16301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1632f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1633f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1634f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1635de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 1636bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->isValueDependent(), 1637ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (input->isInstantiationDependent() || 1638561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType()), 1639bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->containsUnexpandedParameterPack()), 16400799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16420b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 16431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 16442de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 16450b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16460799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 16470b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 16480b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 16500b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 16510b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 16535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 16540b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 16550b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 16572085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 16582de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 16592085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1661cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 16622085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 16632de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 16642085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 16655a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 16660799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 16670799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 16683c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 16693c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementOp(Opcode Op) { 16703c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreInc || Op == UO_PostInc; 16713c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 16722de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 16733c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementOp(getOpcode()); 16743c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 16753c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 16763c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isDecrementOp(Opcode Op) { 16773c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreDec || Op == UO_PostDec; 16782de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 16793c3b7f90a863af43fa63043d396553ecf205351cJohn McCall bool isDecrementOp() const { 16803c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isDecrementOp(getOpcode()); 16813c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 16823c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 16833c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementDecrementOp(Opcode Op) { return Op <= UO_PreDec; } 16842de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 16853c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementDecrementOp(getOpcode()); 16862de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 16873c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 16882de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 16892de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 16902de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 16910799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 16921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 16945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 16950bea86307eb8c16339315a1e261fc490eb505c5bDavid Blaikie static StringRef getOpcodeStr(Opcode Op); 16965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1697bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1698bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1699bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1700bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1701bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1702bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1703bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1704bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 170565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 170665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return isPostfix() ? Val->getLocStart() : Loc; 170765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 170865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 170965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return isPostfix() ? Loc : Val->getLocEnd(); 17105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17114f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { return Loc; } 17121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 17155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 171777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 171863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 17195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 17228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 17238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 17248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 17258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1726ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// double d; 17278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 17288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 17298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 17308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 17318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 17328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1733ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 17348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 17368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 17378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 17388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 17398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 17408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 17418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1742cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 17438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1744cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 17458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1746cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1747cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1748cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1749cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1750cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 17518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 17528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 17548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1755ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 17578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1758ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 17608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1761ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - An unsigned index into the array of Expr*'s stored after this node 17628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 17638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 17648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 17658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1766ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - A CXXBaseSpecifier*, for references that look at a field in a 1767cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 17688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1769ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 17718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1772ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 17738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 17748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1775ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1777ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 17788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1779ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 17808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1781ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 17838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 17848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1785ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 17868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1787cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1788cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1789cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1790cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1791ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1793ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie Kind getKind() const { 17948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 17958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1796ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 17988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 17998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 18008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 18018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 18028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 18058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 18068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1807cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 18088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1809ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 18118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 18128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1813ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1814cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1815cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1816cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1817ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1818cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1819ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 18218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 18228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 18238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1824ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// contains the location of the period (if there is one) and the 18258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 1826aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { return Range; } 182765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Range.getBegin(); } 182865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Range.getEnd(); } 18298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 18308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1832ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 18348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 18358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 18368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 18378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 18388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 18398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1840ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1841ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfExpr(ASTContext &C, QualType type, 18428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 18433b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<OffsetOfNode> comps, ArrayRef<Expr*> exprs, 18448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 18458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 18478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1848ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 18498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1851ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1852ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie static OffsetOfExpr *Create(ASTContext &C, QualType type, 1853ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie SourceLocation OperatorLoc, TypeSourceInfo *tsi, 18543b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<OffsetOfNode> comps, 18553b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> exprs, SourceLocation RParenLoc); 18568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1857ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie static OffsetOfExpr *CreateEmpty(ASTContext &C, 18588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 18598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 18618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 18628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 18638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 18658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 18668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1867ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 18698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 18708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 18728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 18738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1874ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18758cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const OffsetOfNode &getComponent(unsigned Idx) const { 18768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 18778cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return reinterpret_cast<const OffsetOfNode *> (this + 1)[Idx]; 18788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 18818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 18828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 18838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1884ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 18868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 18878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 18908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 18918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 18928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 18938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18948cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getIndexExpr(unsigned Idx) const { 18958cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<OffsetOfExpr*>(this)->getIndexExpr(Idx); 18968cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 18978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 18998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 19008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 19018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 19028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1903ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 19048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 19058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 19068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 19078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 190865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return OperatorLoc; } 190965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 19108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 19118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 19128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 19138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 19148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 19158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 191663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 191763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = 191863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall reinterpret_cast<Stmt**>(reinterpret_cast<OffsetOfNode*>(this + 1) 191963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall + NumComps); 192063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumExprs); 192163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 19228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 19238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1924f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated) 1925f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// expression operand. Used for sizeof/alignof (C99 6.5.3.4) and 1926f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// vec_step (OpenCL 1.1 6.11.12). 1927f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourneclass UnaryExprOrTypeTraitExpr : public Expr { 1928d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1929a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1930d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1931d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 19325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 193342602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 19345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1935f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, TypeSourceInfo *TInfo, 1936f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1937f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1938f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1939ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 19402850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1941bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->isDependentType(), 1942561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor TInfo->getType()->isInstantiationDependentType(), 1943bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->containsUnexpandedParameterPack()), 1944bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer OpLoc(op), RParenLoc(rp) { 1945bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.Kind = ExprKind; 1946bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = true; 1947a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1948ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1949ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 1950f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, Expr *E, 1951f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1952f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1953f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1954ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1955ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1956bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->isTypeDependent(), 1957561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor E->isInstantiationDependent(), 1958bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->containsUnexpandedParameterPack()), 1959bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer OpLoc(op), RParenLoc(rp) { 1960bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.Kind = ExprKind; 1961bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = false; 1962ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1963d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 19640518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 19650b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 1966f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne explicit UnaryExprOrTypeTraitExpr(EmptyShell Empty) 1967f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne : Expr(UnaryExprOrTypeTraitExprClass, Empty) { } 19680b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1969f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTrait getKind() const { 1970bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer return static_cast<UnaryExprOrTypeTrait>(UnaryExprOrTypeTraitExprBits.Kind); 1971f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne } 1972bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setKind(UnaryExprOrTypeTrait K) { UnaryExprOrTypeTraitExprBits.Kind = K;} 19730b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1974bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer bool isArgumentType() const { return UnaryExprOrTypeTraitExprBits.IsType; } 19750518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 19765ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 19775ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1978a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 19790518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 19805ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 19810518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1982caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 19830518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1984d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 19850518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1986caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1987f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return const_cast<UnaryExprOrTypeTraitExpr*>(this)->getArgumentExpr(); 1988caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 19890b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1990bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setArgument(Expr *E) { 1991bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer Argument.Ex = E; 1992bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = false; 1993bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 1994a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1995a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1996bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = true; 19970b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 19980b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 19990518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 20000518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 20010518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 20020518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 20030518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 20040518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 200576e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 20060b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 20070b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 20080b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 20090b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2010866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 201165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return OpLoc; } 201265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 20135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 2015f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return T->getStmtClass() == UnaryExprOrTypeTraitExprClass; 20165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 201877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 201963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children(); 20205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 20215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 20235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 20245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 20255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 20275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 202877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 20291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 20305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 20315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 20322324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 2033f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 203473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 2035f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 20362850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 2037bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2038561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2039561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2040bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2041bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 20422850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 204373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 204473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 204573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 20461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2047cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 2048cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 2049cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 2050cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 20512324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 20522324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 20532324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 20542324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 20552324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 205633fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 205733fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 205833fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 205933fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 20605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 20615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2062cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 2063cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 20645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 20655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2066cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 20671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 20695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 207077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 20711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 20735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 20742324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 20751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 20775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 20782324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 20791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 208077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 20815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 20821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 20831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 208465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 208565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getLHS()->getLocStart(); 20865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 208765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RBracketLoc; } 20881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2089026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 2090cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 2091cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 209265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getExprLoc() const LLVM_READONLY { 209365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getBase()->getExprLoc(); 209465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 20955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 20985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 210077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 210163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 210263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 210363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 21045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 21055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2107b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 21081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 2109b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 21101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 2111b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 2112b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 21135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 2114cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne enum { FN=0, PREARGS_START=1 }; 21155549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 21165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 21175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 21181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2119b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 2120cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne // These versions of the constructor are for derived classes. 2121cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext& C, StmtClass SC, Expr *fn, unsigned NumPreArgs, 21223b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> args, QualType t, ExprValueKind VK, 2123cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SourceLocation rparenloc); 2124cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext &C, StmtClass SC, unsigned NumPreArgs, EmptyShell Empty); 2125cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 2126cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Stmt *getPreArg(unsigned i) { 2127cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2128cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 2129cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2130cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const Stmt *getPreArg(unsigned i) const { 2131cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2132cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 2133cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2134cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne void setPreArg(unsigned i, Stmt *PreArg) { 2135cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2136cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[PREARGS_START+i] = PreArg; 2137cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2138cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 2139cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne unsigned getNumPreArgs() const { return CallExprBits.NumPreArgs; } 214042602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 21415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 21423b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer CallExpr(ASTContext& C, Expr *fn, ArrayRef<Expr*> args, QualType t, 2143f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 21441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21451f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 2146ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 21471f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 21485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 21495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 215018b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 2151a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 2152d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 2153d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 2154d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 2155d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 2156d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 2157a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 2158a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 2159bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 2160bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 2161bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 2162a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 21635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 21645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 21655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 21661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2167aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the call arguments. 2168cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **getArgs() { 2169cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return reinterpret_cast<Expr **>(SubExprs+getNumPreArgs()+PREARGS_START); 2170cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2171d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith const Expr *const *getArgs() const { 2172d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith return const_cast<CallExpr*>(this)->getArgs(); 2173d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith } 2174ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 21755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 21765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 21775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2178cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 21795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 21815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2182cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 21835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2185934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 2186934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 2187934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 2188cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[Arg+getNumPreArgs()+PREARGS_START] = ArgExpr; 2189934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 21901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2191d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 2192d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 2193d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 21948189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 21951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 21975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 21981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2199cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_begin() { return SubExprs+PREARGS_START+getNumPreArgs(); } 2200cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_end() { 2201cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2202cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2203cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_begin() const { 2204cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs(); 2205cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2206cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_end() const { 2207cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2208cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 22091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22105846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek /// This method provides fast access to all the subexpressions of 22115846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek /// a CallExpr without going through the slower virtual child_iterator 22125846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek /// interface. This provides efficient reverse iteration of the 22135846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek /// subexpressions. This is currently used for CFG construction. 22145846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek ArrayRef<Stmt*> getRawSubExprs() { 22155846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek return ArrayRef<Stmt*>(SubExprs, 22165846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek getNumPreArgs() + PREARGS_START + getNumArgs()); 22175846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek } 22185846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek 22195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 22205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 22215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 22225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2223cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 2224cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 2225180f47959a066795cc0f409433023af448bb0328Richard Smith unsigned isBuiltinCall() const; 22261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2227ba57183965f117279342903edec19766e478c9a8Richard Smith /// \brief Returns \c true if this is a call to a builtin which does not 2228ba57183965f117279342903edec19766e478c9a8Richard Smith /// evaluate side-effects within its arguments. 2229ba57183965f117279342903edec19766e478c9a8Richard Smith bool isUnevaluatedBuiltinCall(ASTContext &Ctx) const; 2230ba57183965f117279342903edec19766e478c9a8Richard Smith 22311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 22321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 22336dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 22346dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 22351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2236d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 22371f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2238866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 2239aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY; 2240aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY; 22411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22434bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 22444bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 22455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 224688a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 224777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 224863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 224963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], 225063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall &SubExprs[0]+NumArgs+getNumPreArgs()+PREARGS_START); 225163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 22525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 22535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2254ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 22555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 22565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 22576bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 22586857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth struct MemberNameQualifier { 22596857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The nested-name-specifier that qualifies the name, including 22606857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// source-location information. 22616857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc QualifierLoc; 22626857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth 22636857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The DeclAccessPair through which the MemberDecl was found due to 22646857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// name qualifiers. 2265161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 22666bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 22676bb8017bb9e828d118e15e59d71c66bba323c364John McCall 2268ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 2269ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 22705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 22711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2272ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 2273ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 2274f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 22751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22762577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 22772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 22782577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 22792577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 2280bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer /// MemberLoc - This is the location of the member name. 2281bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer SourceLocation MemberLoc; 2282bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer 2283ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 228483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 22851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 228683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 22876bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 22886bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 2289c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 22906bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 22911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2292e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief True if this member expression specified a template keyword 2293e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// and/or a template argument list explicitly, e.g., x->f<int>, 2294e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// x->template f, x->template f<int>. 2295e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// When true, an ASTTemplateKWAndArgsInfo structure and its 2296e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// TemplateArguments (if any) are allocated immediately after 2297e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// the MemberExpr or, if the member expression also has a qualifier, 2298e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// after the MemberNameQualifier structure. 2299e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool HasTemplateKWAndArgsInfo : 1; 23001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23017cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief True if this member expression refers to a method that 23027cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 23037cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool HadMultipleCandidates : 1; 23047cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 230583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 23066bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 23076bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 23086bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 230983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 231083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 231183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 23126bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 2313c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 2314c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2317f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2318f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 2319f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2320f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2321ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie base->isTypeDependent(), 2322561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isValueDependent(), 2323561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2324bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 2325bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer Base(base), MemberDecl(memberdecl), MemberDNLoc(NameInfo.getInfo()), 2326bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer MemberLoc(NameInfo.getLoc()), IsArrow(isarrow), 2327e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara HasQualifierOrFoundDecl(false), HasTemplateKWAndArgsInfo(false), 23287cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) { 23292577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 23302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 23312577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 23322577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 23332577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 23342577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 2335e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // for constructors, destructors and conversion operators). 23362577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2337f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 2338f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2339f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2340bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 2341561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2342bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 2343bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer Base(base), MemberDecl(memberdecl), MemberDNLoc(), MemberLoc(l), 23442577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 2345e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara HasQualifierOrFoundDecl(false), HasTemplateKWAndArgsInfo(false), 23467cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) {} 2347510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 23481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 234940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 2350e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 2351161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 23522577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 2353d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 2354f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 23551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 235688a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 23575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 235857e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 235957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 236057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 236157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 236257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 2363f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 2364f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 23651f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 23666bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 2367161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 23686bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 2369161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 2370161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 23716bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 23726bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 23736bb8017bb9e828d118e15e59d71c66bba323c364John McCall 23741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 23750979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 23760979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 23776bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 23781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 238083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 238183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 23821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 23836bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 238483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 23851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 238640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc.getNestedNameSpecifier(); 238740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 238840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 2389ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// \brief If the member name was qualified, retrieves the 239040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// nested-name-specifier that precedes the member name, with source-location 239140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// information. 239240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 239340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 239440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 2395ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 239640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc; 239783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 2398c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 2399e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 2400e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() { 2401e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) 2402e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return 0; 2403e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2404e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasQualifierOrFoundDecl) 2405e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>(this + 1); 2406e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2407e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 2408e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara getMemberQualifier() + 1); 2409e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2410e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2411e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 2412e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() const { 2413e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return const_cast<MemberExpr*>(this)->getTemplateKWAndArgsInfo(); 2414e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2415e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2416e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the template keyword preceding 2417e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// the member name, if any. 2418e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getTemplateKeywordLoc() const { 2419e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2420e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->getTemplateKeywordLoc(); 2421e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2422e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2423e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the left angle bracket starting the 2424e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the member name, if any. 2425e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getLAngleLoc() const { 2426e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2427e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->LAngleLoc; 2428e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2429e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2430e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the right angle bracket ending the 2431e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the member name, if any. 2432e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getRAngleLoc() const { 2433e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2434e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->RAngleLoc; 2435c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 24361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2437e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// Determines whether the member name was preceded by the template keyword. 2438e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); } 2439e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2440e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether the member name was followed by an 2441e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list. 2442e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); } 2443e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2444d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 2445d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 2446d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 2447096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 2448096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 2449096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2450096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2451096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2452096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 2453096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 2454b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 2455e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara assert(hasExplicitTemplateArgs()); 2456e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return *getTemplateKWAndArgsInfo(); 2457096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2458096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2459096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2460096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 2461096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 2462b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 2463096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 2464096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2465096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2466096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 2467096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 2468096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 2469b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo *getOptionalExplicitTemplateArgs() const { 2470096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 2471096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 2472d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 2473ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 2474c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 2475c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 2476833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 2477e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasExplicitTemplateArgs()) 24781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 24791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2480096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 2481c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 24821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2483c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 2484c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 24851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 2486e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasExplicitTemplateArgs()) 24871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 24881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2489096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 2490c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 24911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24922577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 24932577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 24942577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 24952577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 24962577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 24972577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 24985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 24991f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 25001f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 2501ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 2502ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 2503026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 25041f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 25055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2506aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY; 2507aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY; 2508ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 25094f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { return MemberLoc; } 25105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 251175e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Determine whether the base of this explicit is implicit. 251275e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitAccess() const { 251375e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor return getBase() && getBase()->isImplicitCXXThis(); 251475e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor } 25157cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 25167cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this member expression refers to a method that 25177cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 25187cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 25197cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return HadMultipleCandidates; 25207cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 25217cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 25227cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a method that was resolved from an overloaded set having size 25237cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 25247cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 25257cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates = V; 25267cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 25277cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 25281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 252983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 25305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25321237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 253363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 25344045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 25354045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 25364045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 25375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 2540aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 2541aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 25420fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 25430fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 25440fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 25450fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 25461d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 25471d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 25481d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 25493654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer /// The int part of the pair stores whether this expr is file scope. 25503654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer llvm::PointerIntPair<TypeSourceInfo *, 1, bool> TInfoAndScope; 25515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 2552aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 255342f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 2554f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 2555f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 2556ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie tinfo->getType()->isDependentType(), 2557bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->isValueDependent(), 2558561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (init->isInstantiationDependent() || 2559561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor tinfo->getType()->isInstantiationDependentType()), 2560bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->containsUnexpandedParameterPack()), 25613654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer LParenLoc(lparenloc), TInfoAndScope(tinfo, fileScope), Init(init) {} 25621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2563ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 2564ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 2565ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 2566ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 25675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 25685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 2569ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 2570e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 25713654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer bool isFileScope() const { return TInfoAndScope.getInt(); } 25723654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer void setFileScope(bool FS) { TInfoAndScope.setInt(FS); } 2573ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 25740fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 2575ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2576ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 25773654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer TypeSourceInfo *getTypeSourceInfo() const { 25783654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer return TInfoAndScope.getPointer(); 25793654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer } 25803654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer void setTypeSourceInfo(TypeSourceInfo *tinfo) { 25813654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer TInfoAndScope.setPointer(tinfo); 25823654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer } 258342f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 258465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 25850fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 25860fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 258765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return SourceLocation(); 25880fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 258965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return Init->getLocStart(); 259065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return LParenLoc; 259165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 259265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 259365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen // FIXME: Init should never be null. 259465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen if (!Init) 259565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return SourceLocation(); 259665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return Init->getLocEnd(); 259773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2598aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 25991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2601aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 26021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26031237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 260463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Init, &Init+1); } 2605aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2606aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 260749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 260849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 260949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 261049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 26110835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2612cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 26135baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 26141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2615cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 26160835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2617409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 26181d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall void CheckCastConsistency() const; 2619409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2620f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2621f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2622f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2623f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2624f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2625654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis void setBasePathSize(unsigned basePathSize) { 2626654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis CastExprBits.BasePathSize = basePathSize; 2627654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis assert(CastExprBits.BasePathSize == basePathSize && 2628654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis "basePathSize doesn't fit in bits of CastExprBits.BasePathSize!"); 2629654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis } 2630654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis 26310835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2632f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2633f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2634f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2635898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2636898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2637898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2638898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2639898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 2640bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType() || (op && op->isValueDependent()), 2641ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (ty->isInstantiationDependentType() || 2642561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (op && op->isInstantiationDependent())), 2643bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (ty->containsUnexpandedParameterPack() || 2644bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor op->containsUnexpandedParameterPack())), 26458e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2646daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 26478e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 2648654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 26491d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall#ifndef NDEBUG 2650daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 26511d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall#endif 2652f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 26531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2654087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2655f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 26568e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 2657654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 26588e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 26591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26600835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 26618e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 26628e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2663f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2664f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 26650835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 26660835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2667087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2668087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 26696eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 26706eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 26716eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 26726eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 26736eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 26746eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 26756eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 267641b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2677f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2678f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 26798e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 26808e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2681f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2682f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2683f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2684f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2685f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2686f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 268741b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 26881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26894bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 26904bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 26910835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 26921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26930835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 269463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Op, &Op+1); } 26950835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 26960835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 269749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 269849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 269949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 270049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 270149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2702bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2703bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2704906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2705bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2706bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2707bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2708bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2709906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 27101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2711906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2712906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2713906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2714906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2715bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2716bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 27170835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2718906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2719f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 27205baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2721f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 27225baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 272390045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2724087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2725f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2726f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2727f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2728f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2729f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2730f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 27315baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2732f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 27335baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2734f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2735f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2736f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2737f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 27385baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2739f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2740f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2741087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 2742aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY { 2743396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar return getSubExpr()->getLocStart(); 2744396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar } 2745aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY { 2746396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar return getSubExpr()->getLocEnd(); 2747396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar } 274890045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 27491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 275149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 275249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 275349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 275491a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCallinline Expr *Expr::IgnoreImpCasts() { 275591a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall Expr *e = this; 275691a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall while (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e)) 275791a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall e = ice->getSubExpr(); 275891a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return e; 275991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall} 276091a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 276149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 27621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 276349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 276449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 276549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 276649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 276749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 276849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 27695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 277049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 277149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 277249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 277349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 277449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2775906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2776906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 27770835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 27789d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 27799d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 27809d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 278149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 278249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2783f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2784f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2785f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2786f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 278749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2788db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2789f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2790f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2791db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 279249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 27939d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 27949d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 27959d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 27969d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 27979d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 279849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 279949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 28009d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 280149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 28021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 28034bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 28044bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 280549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 280649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 280749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 28086eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 280949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 281049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 28116eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2812b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2813b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2814f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2815f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2816f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 281741b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2818f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 281941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 282049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2821db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2822f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2823f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2824f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2825f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2826f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2827f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2828f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2829f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2830f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2831f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2832f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2833db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2834b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2835db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2836db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2837b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2838db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2839db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 284065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return LPLoc; } 284165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 284265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getSubExpr()->getLocEnd(); 28435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 284465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 28451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 28461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 28475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 28495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28503fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 28513fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 28523fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 28533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 28543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 28553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 28563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 28573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 28583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 28593fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 28603fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 28613fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 28623fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 28633fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 28643fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 28653fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 28663fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 28673fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 28685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 28695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 28705baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 28715baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 287217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 28730799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 2874be9af1288881110e406b87914162eaa59f1e5918Lang Hames 2875be9af1288881110e406b87914162eaa59f1e5918Lang Hames // Records the FP_CONTRACT pragma status at the point that this binary 2876be9af1288881110e406b87914162eaa59f1e5918Lang Hames // operator was parsed. This bit is only meaningful for operations on 2877be9af1288881110e406b87914162eaa59f1e5918Lang Hames // floating point types. For all other types it should default to 2878be9af1288881110e406b87914162eaa59f1e5918Lang Hames // false. 2879be9af1288881110e406b87914162eaa59f1e5918Lang Hames unsigned FPContractable : 1; 28800799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 28810799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 288217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 28835549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 28841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 28851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 288617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2887f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2888be9af1288881110e406b87914162eaa59f1e5918Lang Hames SourceLocation opLoc, bool fpContractable) 2889f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2890898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 2891bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2892561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2893561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2894bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2895bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 2896be9af1288881110e406b87914162eaa59f1e5918Lang Hames Opc(opc), FPContractable(fpContractable), OpLoc(opLoc) { 28971237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 28981237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 28991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 29005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 29015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2903db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 29041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 29052de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2906db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 29074f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { return OpLoc; } 290817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2909db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2910db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 29110799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2912db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2913db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 29145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2915db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 29165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2917db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2918db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 291965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 292065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getLHS()->getLocStart(); 292165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 292265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 292365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getRHS()->getLocEnd(); 29245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 29275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 29280bea86307eb8c16339315a1e261fc490eb505c5bDavid Blaikie static StringRef getOpcodeStr(Opcode Op); 29295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 29300bea86307eb8c16339315a1e261fc490eb505c5bDavid Blaikie StringRef getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2931a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2932063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2933063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2934063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2935063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2936063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2937063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2938063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2939063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 29405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2941200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 29422de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 29432de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 29440799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 29452de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 29460799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2947aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 29482de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 29490799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2950f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 29512de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 29520799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2953f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 29542de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 29550799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 29561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29572de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 29580799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2959aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 29602de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 29610799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2962f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 29630e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isAssignmentOp(Opcode Opc) { 29640e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return Opc >= BO_Assign && Opc <= BO_OrAssign; 29650e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 29660e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); } 29670e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 29680e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isCompoundAssignmentOp(Opcode Opc) { 29692de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 29702de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 29710e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isCompoundAssignmentOp() const { 29720e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isCompoundAssignmentOp(getOpcode()); 29730e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 29744b9c2d235fb9449e249d74f48ecfec601650de93John McCall static Opcode getOpForCompoundAssignment(Opcode Opc) { 29754b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(isCompoundAssignmentOp(Opc)); 2976b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall if (Opc >= BO_AndAssign) 2977b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall return Opcode(unsigned(Opc) - BO_AndAssign + BO_And); 29784b9c2d235fb9449e249d74f48ecfec601650de93John McCall else 29794b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Opcode(unsigned(Opc) - BO_MulAssign + BO_Mul); 29804b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 29810e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 29820e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isShiftAssignOp(Opcode Opc) { 29832de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 29842de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 29850e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isShiftAssignOp() const { 29860e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isShiftAssignOp(getOpcode()); 29870e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 29881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 29904bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 29914bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 29925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29931237c673c07f9d827129ba02720108816abde562Ted Kremenek 29941237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 299563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 299663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 299763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 29981237c673c07f9d827129ba02720108816abde562Ted Kremenek 2999be9af1288881110e406b87914162eaa59f1e5918Lang Hames // Set the FP contractability status of this operator. Only meaningful for 3000be9af1288881110e406b87914162eaa59f1e5918Lang Hames // operations on floating point types. 3001be9af1288881110e406b87914162eaa59f1e5918Lang Hames void setFPContractable(bool FPC) { FPContractable = FPC; } 3002be9af1288881110e406b87914162eaa59f1e5918Lang Hames 3003be9af1288881110e406b87914162eaa59f1e5918Lang Hames // Get the FP contractability status of this operator. Only meaningful for 3004be9af1288881110e406b87914162eaa59f1e5918Lang Hames // operations on floating point types. 3005be9af1288881110e406b87914162eaa59f1e5918Lang Hames bool isFPContractable() const { return FPContractable; } 3006be9af1288881110e406b87914162eaa59f1e5918Lang Hames 30075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 300817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 3009f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 3010be9af1288881110e406b87914162eaa59f1e5918Lang Hames SourceLocation opLoc, bool fpContractable, bool dead2) 3011f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 30122333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 3013bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 3014561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 3015561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 3016bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 3017bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 3018be9af1288881110e406b87914162eaa59f1e5918Lang Hames Opc(opc), FPContractable(fpContractable), OpLoc(opLoc) { 30191237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 30201237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 30215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3022ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 30231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 30242de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 30255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 30265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 30275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 30285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 3029ec5bc81fd55bfcc26fc4bde6d5e33113d94c2209Zhongxing Xu/// these operators, the operands are promoted, the arithmetic performed, an 30305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 30315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 30325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 30335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 3034ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 3035ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 30365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3037f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 3038f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 3039f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 3040be9af1288881110e406b87914162eaa59f1e5918Lang Hames SourceLocation OpLoc, bool fpContractable) 3041be9af1288881110e406b87914162eaa59f1e5918Lang Hames : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, fpContractable, 3042be9af1288881110e406b87914162eaa59f1e5918Lang Hames true), 3043ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 3044ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 30451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 30465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 30475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 30485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3049ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 3050ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 3051ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 3052ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 3053ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 3054ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 3055ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 3056ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 3057ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 3058ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 3059ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 3060ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 3061ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 30621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 30631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 30645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 30655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 30665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 306756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// AbstractConditionalOperator - An abstract base class for 306856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator and BinaryConditionalOperator. 306956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass AbstractConditionalOperator : public Expr { 307056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation QuestionLoc, ColonLoc; 307156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 307256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 307356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallprotected: 307456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, QualType T, 307556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprValueKind VK, ExprObjectKind OK, 3076561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor bool TD, bool VD, bool ID, 307756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool ContainsUnexpandedParameterPack, 307856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, 307956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation cloc) 3080561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(SC, T, VK, OK, TD, VD, ID, ContainsUnexpandedParameterPack), 308156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QuestionLoc(qloc), ColonLoc(cloc) {} 308256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 308356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, EmptyShell Empty) 308456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, Empty) { } 308556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 308656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 308756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getCond - Return the expression representing the condition for 308856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 308956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const; 309056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 309156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 309256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 309356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const; 309456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 309556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 309656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 309756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 309856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const; 309956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 310056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getQuestionLoc() const { return QuestionLoc; } 310156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getColonLoc() const { return ColonLoc; } 310256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 310356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 310456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == ConditionalOperatorClass || 310556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->getStmtClass() == BinaryConditionalOperatorClass; 310656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 310756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 310856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 310956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator - The ?: ternary operator. The GNU "missing 311056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// middle" extension is a BinaryConditionalOperator. 311156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass ConditionalOperator : public AbstractConditionalOperator { 31121237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 31135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 311456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 311556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 31165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 311747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 311856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation CLoc, Expr *rhs, 31190943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 312056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, t, VK, OK, 3121898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 3122898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 3123898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 312456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (lhs->isTypeDependent() || rhs->isTypeDependent()), 312556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (cond->isValueDependent() || lhs->isValueDependent() || 312656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->isValueDependent()), 3127561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 3128561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 3129561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 3130bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 313156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall lhs->containsUnexpandedParameterPack() || 313256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 313356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QLoc, CLoc) { 31341237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 31351237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 31361237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 31371237c673c07f9d827129ba02720108816abde562Ted Kremenek } 31385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3139ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 3140ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 314156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, Empty) { } 3142ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 3143395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 314456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 31455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 3146395a2abf0028968d85958610e393e067885dc14fTed Kremenek 314756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 314856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 314956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { return cast<Expr>(SubExprs[LHS]); } 31501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 315156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 315256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 315356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 31545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 3155ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 315656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 31575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 315847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 315965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 316065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getCond()->getLocStart(); 316165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 316265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 316365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getRHS()->getLocEnd(); 31645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 316565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 31661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 31671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 31685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 31691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31701237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 317163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 317263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 317363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 31745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 31755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 317656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// BinaryConditionalOperator - The GNU extension to the conditional 317756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operator which allows the middle operand to be omitted. 317856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// 317956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// This is a different expression kind on the assumption that almost 318056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// every client ends up needing to know that these are different. 318156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass BinaryConditionalOperator : public AbstractConditionalOperator { 318256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall enum { COMMON, COND, LHS, RHS, NUM_SUBEXPRS }; 318356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 318456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the common condition/left-hand-side expression, which will be 318556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated as the opaque value 318656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the condition, expressed in terms of the opaque value 318756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the left-hand-side, expressed in terms of the opaque value 318856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the right-hand-side 318956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Stmt *SubExprs[NUM_SUBEXPRS]; 319056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *OpaqueValue; 319156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 319256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 319356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 319456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall BinaryConditionalOperator(Expr *common, OpaqueValueExpr *opaqueValue, 319556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *cond, Expr *lhs, Expr *rhs, 319656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, SourceLocation cloc, 319756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 319856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, t, VK, OK, 319956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isTypeDependent() || rhs->isTypeDependent()), 320056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isValueDependent() || rhs->isValueDependent()), 3201561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (common->isInstantiationDependent() || 3202561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 320356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->containsUnexpandedParameterPack() || 320456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 320556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall qloc, cloc), 320656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue(opaqueValue) { 320756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COMMON] = common; 320856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COND] = cond; 320956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[LHS] = lhs; 321056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[RHS] = rhs; 321197df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor assert(OpaqueValue->getSourceExpr() == common && "Wrong opaque value"); 321256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 321356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 321456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Build an empty conditional operator. 321556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit BinaryConditionalOperator(EmptyShell Empty) 321656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, Empty) { } 321756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 321856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCommon - Return the common expression, written to the 321956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// left of the condition. The opaque value will be bound to the 322056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// result of this expression. 322156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCommon() const { return cast<Expr>(SubExprs[COMMON]); } 322256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 322356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getOpaqueValue - Return the opaque value placeholder. 322456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *getOpaqueValue() const { return OpaqueValue; } 322556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 322656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCond - Return the condition expression; this is defined 322756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 322856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 322956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 323056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getTrueExpr - Return the subexpression which will be 323156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condition evaluates to true; this is defined 323256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 323356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { 323456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[LHS]); 323556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 323656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 323756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getFalseExpr - Return the subexpression which will be 323856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condnition evaluates to false; this is 323956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// defined in terms of the opaque value. 324056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const { 324156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[RHS]); 324256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 3243ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 324465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 324565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getCommon()->getLocStart(); 324665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 324765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 324865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getFalseExpr()->getLocEnd(); 324956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 325065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 325156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 325256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == BinaryConditionalOperatorClass; 325356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 325456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 325556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // Iterators 325656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { 325756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return child_range(SubExprs, SubExprs + NUM_SUBEXPRS); 325856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 325956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 326056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 326156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getCond() const { 326256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 326356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getCond(); 326456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getCond(); 326556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 326656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 326756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getTrueExpr() const { 326856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 326956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getTrueExpr(); 327056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getTrueExpr(); 327156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 327256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 327356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getFalseExpr() const { 327456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 327556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getFalseExpr(); 327656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getFalseExpr(); 327756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 327856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 32796481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 32806481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 32815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 3282ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *Label; 32835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3284ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelDecl *L, 32856481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 3286561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false, 3287561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 32882333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 32891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32907d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 32911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 32927d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 32937d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 32947d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 32957d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 32967d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 32977d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 32987d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 329965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return AmpAmpLoc; } 330065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return LabelLoc; } 33011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3302ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *getLabel() const { return Label; } 3303ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void setLabel(LabelDecl *L) { Label = L; } 33047d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 33055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 33061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 33075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 33081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33091237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 331063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 33115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3312ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3313ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 3314ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 3315ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 3316f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 3317f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 3318f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 3319ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 33205549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 3321ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 3322ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 33232333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 3324561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // FIXME: Do we need to compute instantiation instantiation-dependence for 3325561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // statements? (ugh!) 3326d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 3327d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 3328f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 3329561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isDependentType(), false, false, false), 33302333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 33311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33326a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 33336a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 33346a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 33355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 33365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 33376a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 33386a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 333965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return LParenLoc; } 334065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 33411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3342026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 33436a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 3344026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 33456a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 33461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3347ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 33481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 3349ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 33501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33511237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 335263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&SubStmt, &SubStmt+1); } 3353ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 3354ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3355d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 3356d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 3357d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 3358d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 3359d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 3360d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 3361d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 3362d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 3363d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 3364d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3365d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 3366d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 3367d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 3368d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 33695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 3370d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 3371d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3372d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 33733b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ShuffleVectorExpr(ASTContext &C, ArrayRef<Expr*> args, QualType Type, 33743b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer SourceLocation BLoc, SourceLocation RP); 337594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 337694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 33771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 337894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 337994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 338094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 338194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 33821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 338394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 338494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 338594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 338665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; } 338765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 338865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 3389d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 33901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 3391d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 33921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3393d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 3394d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 3395d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 3396d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 33971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3398aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the array of expressions. 3399aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 3400ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3401d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 3402d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 3403d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 34045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3405d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3406d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 3407d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 34085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3409d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 34101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3411888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 341294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 341388920d1a84dc63a3722b1f2b1fb5926c44bd81abRoman Divacky unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) const { 3414dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 3415a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith return getExpr(N+2)->EvaluateKnownConstInt(Ctx).getZExtValue(); 3416d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 34171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3418d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 341963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 342063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+NumExprs); 342163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3422d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 3423d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3424d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 34251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 3426d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 34277976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 34287976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 34297976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 34307976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 34317976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 34327976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 3433d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 34341237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 34355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 3436d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 3437d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 3438f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 3439f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 3440ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 3441bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent, 3442561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 3443561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 3444561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 3445bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 3446bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->containsUnexpandedParameterPack() || 3447bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 34481237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 34491237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 34501237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 34511237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 34521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 34537976932a1c256d447316ffac58e9821417725e34Eli Friedman 345444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 345544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 345644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 34577976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 34587976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 34594ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isConditionTrue(const ASTContext &C) const; 34607976932a1c256d447316ffac58e9821417725e34Eli Friedman 34617976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 34627976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 34634ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad Expr *getChosenSubExpr(const ASTContext &C) const { 34647976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 34657976932a1c256d447316ffac58e9821417725e34Eli Friedman } 34667976932a1c256d447316ffac58e9821417725e34Eli Friedman 34675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 346844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 34695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 347044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 34715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 347244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 347344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 347444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 347544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 34761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 347744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 347844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 34791237c673c07f9d827129ba02720108816abde562Ted Kremenek 348065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; } 348165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 348265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 3483d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 34841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 3485d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 34861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34871237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 348863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 348963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 349063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3491d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 3492d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 34932d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 34942d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 34952d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 34962d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 34972d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 34982d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 34992d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 35002d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 35012d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 35022d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 35032d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 35041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 3505561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false, 3506561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 3507f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 35082d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 350944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 351044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 351144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 35122d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 35132d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 351444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 35152d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 351665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return TokenLoc; } 351765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return TokenLoc; } 351865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 35192d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 35201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 35212d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 35221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35232d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 352463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 35252d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 35262d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 352774626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 35287c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 35295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 35302cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 35317c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 35327c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 35332cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 35342cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 3535f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 3536bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor t->isDependentType(), false, 3537561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (TInfo->getType()->isInstantiationDependentType() || 3538561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor e->isInstantiationDependent()), 3539bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (TInfo->getType()->containsUnexpandedParameterPack() || 3540bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor e->containsUnexpandedParameterPack())), 35412cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 35427c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 35437c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 35441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 354574626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 3546d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 3547d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 35485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 35495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 3550d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 3551d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 35522cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 35532cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 35542cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 3555d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 3556d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 35571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3558d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 3559d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 3560d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 356165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; } 356265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 356365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 35647c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 35657c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 35667c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 35671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35687c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 356963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 35707c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 35711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 35734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 35744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 35754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 35764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 35774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 35784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 35794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 35804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 3581196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 35824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 35834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 35844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 35854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 35864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 35874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 35884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 35894c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 3590196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 35914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 35924c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 35934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 35944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 35954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 35964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 35974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 35983498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 35994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 36004c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 36014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 3602196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 360323700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// After semantic analysis has completed, given an initializer list, 360423700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// method isSemanticForm() returns true if and only if this is the 360523700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// semantic form of the initializer list (note: the same AST node 360623700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// may at the same time be the syntactic form). 36074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 360823700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// the syntactic form of that initializer list (when different) 360923700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// using method getSyntacticForm(); the method returns null if applied 361023700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// to a initializer list which is already in syntactic form. 361123700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// Similarly, given the syntactic form (i.e., an initializer list such 361223700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// that isSemanticForm() returns false), one can retrieve the semantic 361323700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// form using method getSemanticForm(). 361423700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// Since many initializer lists have the same syntactic and semantic forms, 361523700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// getSyntacticForm() may return NULL, indicating that the current 361623700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// semantic initializer list also serves as its syntactic form. 361766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 3618ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 3619709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 3620709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 362166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 36221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 362323700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara /// The alternative form of the initializer list (if it exists). 362423700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara /// The int part of the pair stores whether this initalizer list is 362523700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara /// in semantic form. If not null, the pointer points to: 362623700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara /// - the syntactic form, if this is in semantic form; 362723700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara /// - the semantic form, if this is in syntactic form. 362823700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara llvm::PointerIntPair<InitListExpr *, 1, bool> AltForm; 36294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 36304423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief Either: 36314423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes an array with more elements than 36324423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// there are initializers in the list, specifies an expression to be used 36334423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// for value initialization of the rest of the elements. 36344423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// Or 36354423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes a union, specifies which 36364423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// field within the union will be initialized. 36374423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis llvm::PointerUnion<Expr *, FieldDecl *> ArrayFillerOrUnionFieldInit; 36380bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 363966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 3640709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 36413b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> initExprs, SourceLocation rbraceloc); 3642d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3643d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 36442a82ca255b0f99f6201a75ed52b91fc024f6e9cfArgyrios Kyrtzidis explicit InitListExpr(EmptyShell Empty) 36452a82ca255b0f99f6201a75ed52b91fc024f6e9cfArgyrios Kyrtzidis : Expr(InitListExprClass, Empty) { } 36461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3647ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 36481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3649aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the set of initializers. 3650aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getInits() { return reinterpret_cast<Expr **>(InitExprs.data()); } 3651ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 365216c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 3653c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 36544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 365566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 36561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 365716c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 3658c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 36594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 366066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 36611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 3663c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 36649e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 36659e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 3666c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 3667fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 3668709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 36691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 36714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 36724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 36734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 36744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 36754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 36764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 36774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 36784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 36794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 36804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 36814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 36824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 36834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 3684fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// accommodate the new entry. 3685709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 3686c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 36874423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief If this initializer list initializes an array with more elements 36884423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// than there are initializers in the list, specifies an expression to be 36894423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// used for value initialization of the rest of the elements. 36904423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis Expr *getArrayFiller() { 36914423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<Expr *>(); 36924423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 36938cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getArrayFiller() const { 36948cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getArrayFiller(); 36958cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 36963e8dc2ac8926dfbebd8f2f6b74ceba4befccd4d2Argyrios Kyrtzidis void setArrayFiller(Expr *filler); 36974423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 369821f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// \brief Return true if this is an array initializer and its array "filler" 369921f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// has been set. 370021f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis bool hasArrayFiller() const { return getArrayFiller(); } 370121f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis 37020bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 37030bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 37040bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 37050bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 37060bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 37070bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 37084423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis FieldDecl *getInitializedFieldInUnion() { 37094423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<FieldDecl *>(); 37104423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 37118cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const FieldDecl *getInitializedFieldInUnion() const { 37128cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getInitializedFieldInUnion(); 37138cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 37144423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis void setInitializedFieldInUnion(FieldDecl *FD) { 37154423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis ArrayFillerOrUnionFieldInit = FD; 37164423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 37170bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3718c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3719c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3720b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3721b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3722b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 37231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3724fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith // Is this an initializer for an array of characters, initialized by a string 3725fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith // literal or an @encode? 3726fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith bool isStringLiteralInit() const; 3727fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith 3728d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3729d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3730d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 373187fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 373287fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 373323700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara bool isSemanticForm() const { return AltForm.getInt(); } 373423700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara InitListExpr *getSemanticForm() const { 373523700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara return isSemanticForm() ? 0 : AltForm.getPointer(); 373623700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara } 373723700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara InitListExpr *getSyntacticForm() const { 373823700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara return isSemanticForm() ? AltForm.getPointer() : 0; 373923700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara } 374023700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara 374123700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara void setSyntacticForm(InitListExpr *Init) { 374223700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara AltForm.setPointer(Init); 374323700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara AltForm.setInt(true); 374423700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara Init->AltForm.setPointer(this); 374523700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara Init->AltForm.setInt(false); 374623700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara } 37474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 374832cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl bool hadArrayRangeDesignator() const { 374932cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl return InitListExprBits.HadArrayRangeDesignator != 0; 375032cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl } 37511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 375232cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl InitListExprBits.HadArrayRangeDesignator = ARD; 375332cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl } 375432cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl 375532cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl bool initializesStdInitializerList() const { 375632cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl return InitListExprBits.InitializesStdInitializerList != 0; 375732cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl } 375832cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl void setInitializesStdInitializerList(bool ISIL = true) { 375932cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl InitListExprBits.InitializesStdInitializerList = ISIL; 3760a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3761a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 376265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY; 376365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY; 3764c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 376566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 37661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 376766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 37681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 376966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 377063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 377163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall if (InitExprs.empty()) return child_range(); 377263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&InitExprs[0], &InitExprs[0] + InitExprs.size()); 377363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 37741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3775709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 37768111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3777709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 37788111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 37791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3780ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 37818111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3782ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 37838111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3784ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 37858111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3786ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 37878111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 37884423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 37894423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtReader; 37904423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtWriter; 379166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 379266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 379305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 379405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 379505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 379605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 379705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 379805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 379905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 38001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 380105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 380205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 380305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 380405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 380505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 380605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 380705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 380805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 380905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 381005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 381105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 381205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 381305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3814ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3815ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3816ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3817ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3818ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 381905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 382005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 382105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 382205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3823eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 382405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3825eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 382605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 382705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 382805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 382905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 383005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 383105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 383205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 383305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 383405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3835a72c352e4950cb487942427550777378b68dc078Benjamin Kramer /// \brief The designators in this designated initialization 3836a72c352e4950cb487942427550777378b68dc078Benjamin Kramer /// expression. 3837a72c352e4950cb487942427550777378b68dc078Benjamin Kramer Designator *Designators; 3838a72c352e4950cb487942427550777378b68dc078Benjamin Kramer 3839ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3840319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3841ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3842eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 38433b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> IndexExprs, Expr *Init); 384405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3845d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3846d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3847a72c352e4950cb487942427550777378b68dc078Benjamin Kramer NumDesignators(0), NumSubExprs(NumSubExprs), Designators(0) { } 3848d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 384905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 385005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 385105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 385205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 385305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 385405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 385505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 385605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 385705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 385805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 38591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 386005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 386105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 38621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 386305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 386405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 386505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 386605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 386705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 386805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 386905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 387005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 387105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 387205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 387305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 387405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 387505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 387605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 387705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 38781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 387905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 388005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 388105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 388205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 388305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 388405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 388505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 388605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 388705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 388805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 388905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 389005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 389105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 389205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 389305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 389405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 389505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 389605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 389705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 389805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 389905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 390005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 390105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 390205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 390305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3904ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3905ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 390605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 39071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 39081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 390905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 391005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 391105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 391205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 391305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 391405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 391505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 39161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 391705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 391805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 391905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 392005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 392105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 392205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 392305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 392405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 392505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 39261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 392705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 392805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 392905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 393005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 393105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 393205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 393305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 393405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 393505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 393605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 393705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 393805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3939b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth IdentifierInfo *getFieldName() const; 394005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3941b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth FieldDecl *getField() const { 394205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 394305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 394405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 394505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 394605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 394705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 394805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 394905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 395005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 395105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 395205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 395305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 395487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 395587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 395687f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 395787f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 395887f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 395905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 396005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 396105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 396205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 396305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 396405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 396505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 396605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 396705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 396805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 396905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 397005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 397105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 397205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 397305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 397405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 397505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 397605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 397705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 397805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 397905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 398005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 39814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3982d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3983d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3984d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3985d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3986d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3987d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 398865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 39894c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 39904c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 39914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 39924c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 39934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 399465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 399524f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return Kind == FieldDesignator ? getFieldLoc() : getRBracketLoc(); 399624f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 3997aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 399865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return SourceRange(getLocStart(), getLocEnd()); 399924f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 400005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 400105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 40021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 400305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 40043b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> IndexExprs, 400505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 4006eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 400705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 4008d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 4009d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 401005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 401105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 401205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 401305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 4014b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef Designator *designators_iterator; 4015ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 40161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 40171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 4018ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 401905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 4020b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef const Designator *const_designators_iterator; 4021b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_begin() const { return Designators; } 4022b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_end() const { 4023b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return Designators + NumDesignators; 4024b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 4025b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 4026cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 4027cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 4028cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 4029cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 4030cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 4031cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 4032cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 4033cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 4034cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 4035b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef std::reverse_iterator<const_designators_iterator> 4036b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator; 4037b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rbegin() const { 4038b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_end()); 4039b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 4040b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rend() const { 4041b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_begin()); 4042b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 4043b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 4044711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 4045711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 4046ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setDesignators(ASTContext &C, const Designator *Desigs, 4047319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 4048d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 4049d615f88e3c24f91a65c25a4f7e66e0f97b18cc15Dmitri Gribenko Expr *getArrayIndex(const Designator &D) const; 4050d615f88e3c24f91a65c25a4f7e66e0f97b18cc15Dmitri Gribenko Expr *getArrayRangeStart(const Designator &D) const; 4051d615f88e3c24f91a65c25a4f7e66e0f97b18cc15Dmitri Gribenko Expr *getArrayRangeEnd(const Designator &D) const; 405205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 405305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 405405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 405505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 4056d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 405705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 405805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 4059eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 4060eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 4061d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 406205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 406305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 40641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 406505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 406605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 406705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 406805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 406905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 407005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 407105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 4072d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 4073d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 4074d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 4075d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 4076d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 4077d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 4078d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 4079d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 4080d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 4081d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 4082d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 4083d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 4084d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 4085d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 4086d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 4087d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 4088d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 4089d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 4090d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 4091d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 4092ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 4093ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 4094319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 4095ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 4096ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 409724f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getDesignatorsSourceRange() const; 409824f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara 409965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY; 410065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY; 410105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 410205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 41031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 410405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 410505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 410605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 410763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 410863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = reinterpret_cast<Stmt**>(this + 1); 410963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumSubExprs); 411063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 41113498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 41123498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 41133498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 41143498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 41153498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 41161a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 41171a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 41183498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 41191a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 41201a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 41211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 41223498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 41231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 4124f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 4125561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false, ty->isInstantiationDependentType(), false) { } 41263498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 4127d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 4128d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 4129d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 4130d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 41311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 41323498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 41333498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 41343498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 413565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return SourceLocation(); } 413665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return SourceLocation(); } 41373498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 41383498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 413963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 414005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 414105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 41422ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 41432ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 41442ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 41452ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 41462ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 41472ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 41482ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 41493b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ParenListExpr(ASTContext& C, SourceLocation lparenloc, ArrayRef<Expr*> exprs, 41503b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer SourceLocation rparenloc); 41512ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 41522ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 415337bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 41541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41552ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 41561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 41582ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 41592ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 41602ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 41611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 41632ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 41642ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 41652ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 41662ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 416783ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 41681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41692ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 41702ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 41712ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 417265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return LParenLoc; } 417365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 417465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 41752ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 41761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 41772ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 41781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41792ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 418063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 418163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&Exprs[0], &Exprs[0]+NumExprs); 418263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 418337bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 418460adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 41853397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 41862ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 41872ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 41881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4189ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// \brief Represents a C11 generic selection. 4190f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4191ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// A generic selection (C11 6.5.1.1) contains an unevaluated controlling 4192f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression, followed by one or more generic associations. Each generic 4193f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association specifies a type name and an expression, or "default" and an 4194f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression (in which case it is known as a default generic association). 4195f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The type and value of the generic selection are identical to those of its 4196f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// result expression, which is defined as the expression in the generic 4197f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association with a type name that is compatible with the type of the 4198f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// controlling expression, or the expression in the default generic association 4199f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// if no types are compatible. For example: 4200f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4201f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @code 4202f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// _Generic(X, double: 1, float: 2, default: 3) 4203f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @endcode 4204f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4205f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The above expression evaluates to 1 if 1.0 is substituted for X, 2 if 1.0f 4206f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// or 3 if "hello". 4207f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4208f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// As an extension, generic selections are allowed in C++, where the following 4209f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// additional semantics apply: 4210f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4211f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Any generic selection whose controlling expression is type-dependent or 4212f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which names a dependent type in its association list is result-dependent, 4213f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which means that the choice of result expression is dependent. 4214f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Result-dependent generic associations are both type- and value-dependent. 4215f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourneclass GenericSelectionExpr : public Expr { 4216f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne enum { CONTROLLING, END_EXPR }; 4217f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes; 4218f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Stmt **SubExprs; 4219f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, ResultIndex; 4220f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, DefaultLoc, RParenLoc; 4221f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4222f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbournepublic: 4223f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 4224f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 42253b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<TypeSourceInfo*> AssocTypes, 42263b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> AssocExprs, 42273b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer SourceLocation DefaultLoc, SourceLocation RParenLoc, 4228f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack, 4229f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned ResultIndex); 4230f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4231f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// This constructor is used in the result-dependent case. 4232f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 4233f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 42343b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<TypeSourceInfo*> AssocTypes, 42353b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> AssocExprs, 42363b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer SourceLocation DefaultLoc, SourceLocation RParenLoc, 4237f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack); 4238f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4239f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne explicit GenericSelectionExpr(EmptyShell Empty) 4240f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne : Expr(GenericSelectionExprClass, Empty) { } 4241f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4242f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getNumAssocs() const { return NumAssocs; } 4243f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4244f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getGenericLoc() const { return GenericLoc; } 4245f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getDefaultLoc() const { return DefaultLoc; } 4246f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getRParenLoc() const { return RParenLoc; } 4247f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4248f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getAssocExpr(unsigned i) const { 4249f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[END_EXPR+i]); 4250f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4251f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getAssocExpr(unsigned i) { return cast<Expr>(SubExprs[END_EXPR+i]); } 4252f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4253f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) const { 4254f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return AssocTypes[i]; 4255f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4256f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) { return AssocTypes[i]; } 4257f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4258f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne QualType getAssocType(unsigned i) const { 4259f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne if (const TypeSourceInfo *TS = getAssocTypeSourceInfo(i)) 4260f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return TS->getType(); 4261f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne else 4262f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return QualType(); 4263f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4264f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4265f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getControllingExpr() const { 4266f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[CONTROLLING]); 4267f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4268f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getControllingExpr() { return cast<Expr>(SubExprs[CONTROLLING]); } 4269f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4270f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// Whether this generic selection is result-dependent. 4271f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool isResultDependent() const { return ResultIndex == -1U; } 4272f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4273f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The zero-based index of the result expression's generic association in 4274f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// the generic selection's association list. Defined only if the 4275f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4276f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getResultIndex() const { 4277f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne assert(!isResultDependent() && "Generic selection is result-dependent"); 4278f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return ResultIndex; 4279f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4280f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4281f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The generic selection's result expression. Defined only if the 4282f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4283f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getResultExpr() const { return getAssocExpr(getResultIndex()); } 4284f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getResultExpr() { return getAssocExpr(getResultIndex()); } 4285f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 428665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return GenericLoc; } 428765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 428865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 4289f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const Stmt *T) { 4290f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return T->getStmtClass() == GenericSelectionExprClass; 4291f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4292f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4293f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne child_range children() { 4294f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return child_range(SubExprs, SubExprs+END_EXPR+NumAssocs); 4295f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4296f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4297f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne friend class ASTStmtReader; 4298f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne}; 4299f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 43004eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 43014eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 43024eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 43034eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 4304a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4305a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 4306a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 4307a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 4308a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 430973525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 431073525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 431173525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 4312a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 4313a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 4314d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 4315a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 4316a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 4317f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 4318f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 43190943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 43200943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 4321bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 4322561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 4323bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 4324d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 43251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4326d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 4327d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 4328d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 4329d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4330a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 4331a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 4332d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 4333d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4334d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 4335d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 4336d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4337d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 4338d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 4339d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4340a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 4341a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 43421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4343a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 4344a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 4345a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 43461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4347a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 4348a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 4349686775deca8b8685eb90801495880e3abdd844c2Chris Lattner void getEncodedElementAccess(SmallVectorImpl<unsigned> &Elts) const; 43501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 435165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 435265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getBase()->getLocStart(); 4353a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 435465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return AccessorLoc; } 43551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43562140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 43572140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 43582140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 43591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 43611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 4362a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 43631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4364a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 436563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 4366a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 4367a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4368a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 436956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 43709c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 43714eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 437256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 437356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 43744eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 4375469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall BlockExpr(BlockDecl *BD, QualType ty) 4376f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 4377ec79d877c1998366480d97a7a6c94e15c053edd8Douglas Gregor ty->isDependentType(), ty->isDependentType(), 4378ec79d877c1998366480d97a7a6c94e15c053edd8Douglas Gregor ty->isInstantiationDependentType() || BD->isDependentContext(), 4379561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 4380469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall TheBlock(BD) {} 43819c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 438284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 438384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 438484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 4385d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 438656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 438784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 438884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 438956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 439056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 439156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 439256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 43939c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 439465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return getCaretLocation(); } 439565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return getBody()->getLocEnd(); } 43969c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 439756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 4398a345edb668380691fc92d4e4aa0a5ffec366ca6aJohn McCall const FunctionProtoType *getFunctionType() const; 439956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 44001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 44019c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 44024eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 44031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44044eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 440563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 44064eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 44071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 440861eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// AsTypeExpr - Clang builtin function __builtin_astype [OpenCL 6.2.4.2] 440961eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// This AST node provides support for reinterpreting a type to another 441061eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// type of the same size. 4411379010addb0e84fd0fbc37c829baf658958521bdJohn McCallclass AsTypeExpr : public Expr { // Should this be an ExplicitCastExpr? 441261eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerprivate: 4413379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Stmt *SrcExpr; 441461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, RParenLoc; 4415379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4416379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTReader; 4417379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTStmtReader; 4418379010addb0e84fd0fbc37c829baf658958521bdJohn McCall explicit AsTypeExpr(EmptyShell Empty) : Expr(AsTypeExprClass, Empty) {} 4419ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 442061eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerpublic: 442161eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner AsTypeExpr(Expr* SrcExpr, QualType DstType, 442261eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner ExprValueKind VK, ExprObjectKind OK, 442361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, SourceLocation RParenLoc) 4424ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Expr(AsTypeExprClass, DstType, VK, OK, 4425561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType(), 4426561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType() || SrcExpr->isValueDependent(), 4427561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->isInstantiationDependentType() || 4428561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->isInstantiationDependent()), 4429561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->containsUnexpandedParameterPack() || 4430561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->containsUnexpandedParameterPack())), 4431379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SrcExpr(SrcExpr), BuiltinLoc(BuiltinLoc), RParenLoc(RParenLoc) {} 4432ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 443361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner /// getSrcExpr - Return the Expr to be converted. 4434379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Expr *getSrcExpr() const { return cast<Expr>(SrcExpr); } 4435379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4436379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getBuiltinLoc - Return the location of the __builtin_astype token. 4437379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4438379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4439379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getRParenLoc - Return the location of final right parenthesis. 4440379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getRParenLoc() const { return RParenLoc; } 4441ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 444265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; } 444365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 4444ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 444561eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner static bool classof(const Stmt *T) { 4446ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return T->getStmtClass() == AsTypeExprClass; 444761eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner } 4448ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 444961eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner // Iterators 4450379010addb0e84fd0fbc37c829baf658958521bdJohn McCall child_range children() { return child_range(&SrcExpr, &SrcExpr+1); } 445161eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner}; 4452276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 44534b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr - An expression which accesses a pseudo-object 44544b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// l-value. A pseudo-object is an abstract object, accesses to which 44554b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// are translated to calls. The pseudo-object expression has a 44564b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// syntactic form, which shows how the expression was actually 44574b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// written in the source code, and a semantic form, which is a series 44584b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// of expressions to be executed in order which detail how the 44594b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// operation is actually evaluated. Optionally, one of the semantic 44604b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// forms may also provide a result value for the expression. 44614b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 44624b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// If any of the semantic-form expressions is an OpaqueValueExpr, 44634b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// that OVE is required to have a source expression, and it is bound 44644b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// to the result of that source expression. Such OVEs may appear 44654b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// only in subsequent semantic-form expressions and as 44664b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// sub-expressions of the syntactic form. 44674b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 44684b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr should be used only when an operation can be 44694b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// usefully described in terms of fairly simple rewrite rules on 44704b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// objects and functions that are meant to be used by end-developers. 44714b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// For example, under the Itanium ABI, dynamic casts are implemented 44724b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// as a call to a runtime function called __dynamic_cast; using this 44734b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// class to describe that would be inappropriate because that call is 44744b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// not really part of the user-visible semantics, and instead the 44754b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// cast is properly reflected in the AST and IR-generation has been 44764b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// taught to generate the call as necessary. In contrast, an 44774b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Objective-C property access is semantically defined to be 44784b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// equivalent to a particular message send, and this is very much 44794b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// part of the user model. The name of this class encourages this 44804b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// modelling design. 44814b9c2d235fb9449e249d74f48ecfec601650de93John McCallclass PseudoObjectExpr : public Expr { 44824b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.NumSubExprs - The number of sub-expressions. 44834b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Always at least two, because the first sub-expression is the 44844b9c2d235fb9449e249d74f48ecfec601650de93John McCall // syntactic form. 44854b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44864b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.ResultIndex - The index of the 44874b9c2d235fb9449e249d74f48ecfec601650de93John McCall // sub-expression holding the result. 0 means the result is void, 44884b9c2d235fb9449e249d74f48ecfec601650de93John McCall // which is unambiguous because it's the index of the syntactic 44894b9c2d235fb9449e249d74f48ecfec601650de93John McCall // form. Note that this is therefore 1 higher than the value passed 44904b9c2d235fb9449e249d74f48ecfec601650de93John McCall // in to Create, which is an index within the semantic forms. 44914b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Note also that ASTStmtWriter assumes this encoding. 44924b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44934b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr **getSubExprsBuffer() { return reinterpret_cast<Expr**>(this + 1); } 44944b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr * const *getSubExprsBuffer() const { 44954b9c2d235fb9449e249d74f48ecfec601650de93John McCall return reinterpret_cast<const Expr * const *>(this + 1); 44964b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44974b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44984b9c2d235fb9449e249d74f48ecfec601650de93John McCall friend class ASTStmtReader; 44994b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45004b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(QualType type, ExprValueKind VK, 45014b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *syntactic, ArrayRef<Expr*> semantic, 45024b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 45034b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45044b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(EmptyShell shell, unsigned numSemanticExprs); 45054b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45064b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSubExprs() const { 45074b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.NumSubExprs; 45084b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45094b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45104b9c2d235fb9449e249d74f48ecfec601650de93John McCallpublic: 45114b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// NoResult - A value for the result index indicating that there is 45124b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// no semantic result. 45134b9c2d235fb9449e249d74f48ecfec601650de93John McCall enum { NoResult = ~0U }; 45144b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45154b9c2d235fb9449e249d74f48ecfec601650de93John McCall static PseudoObjectExpr *Create(ASTContext &Context, Expr *syntactic, 45164b9c2d235fb9449e249d74f48ecfec601650de93John McCall ArrayRef<Expr*> semantic, 45174b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 45184b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45194b9c2d235fb9449e249d74f48ecfec601650de93John McCall static PseudoObjectExpr *Create(ASTContext &Context, EmptyShell shell, 45204b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned numSemanticExprs); 45214b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45224b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the syntactic form of this expression, i.e. the 45234b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expression it actually looks like. Likely to be expressed in 45244b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// terms of OpaqueValueExprs bound in the semantic form. 45254b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSyntacticForm() { return getSubExprsBuffer()[0]; } 45264b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSyntacticForm() const { return getSubExprsBuffer()[0]; } 45274b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45284b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the index of the result-bearing expression into the semantics 45294b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expressions, or PseudoObjectExpr::NoResult if there is none. 45304b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getResultExprIndex() const { 45314b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) return NoResult; 45324b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.ResultIndex - 1; 45334b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45344b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45354b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the result-bearing expression, or null if there is none. 45364b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getResultExpr() { 45374b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) 45384b9c2d235fb9449e249d74f48ecfec601650de93John McCall return 0; 45394b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[PseudoObjectExprBits.ResultIndex]; 45404b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45414b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getResultExpr() const { 45424b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getResultExpr(); 45434b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45444b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45454b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSemanticExprs() const { return getNumSubExprs() - 1; } 45464b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45474b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef Expr * const *semantics_iterator; 45484b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef const Expr * const *const_semantics_iterator; 45494b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_begin() { 45504b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 45514b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45524b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_begin() const { 45534b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 45544b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45554b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_end() { 45564b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 45574b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45584b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_end() const { 45594b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 45604b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45614b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSemanticExpr(unsigned index) { 45624b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(index + 1 < getNumSubExprs()); 45634b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[index + 1]; 45644b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45654b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSemanticExpr(unsigned index) const { 45664b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getSemanticExpr(index); 45674b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45684b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45694f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { 45704b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSyntacticForm()->getExprLoc(); 45714b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 457265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 457365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 457465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getSyntacticForm()->getLocStart(); 457565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 457665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 457765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getSyntacticForm()->getLocEnd(); 45784b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45794b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45804b9c2d235fb9449e249d74f48ecfec601650de93John McCall child_range children() { 45814b9c2d235fb9449e249d74f48ecfec601650de93John McCall Stmt **cs = reinterpret_cast<Stmt**>(getSubExprsBuffer()); 45824b9c2d235fb9449e249d74f48ecfec601650de93John McCall return child_range(cs, cs + getNumSubExprs()); 45834b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45844b9c2d235fb9449e249d74f48ecfec601650de93John McCall 45854b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool classof(const Stmt *T) { 45864b9c2d235fb9449e249d74f48ecfec601650de93John McCall return T->getStmtClass() == PseudoObjectExprClass; 45874b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 45884b9c2d235fb9449e249d74f48ecfec601650de93John McCall}; 45894b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4590276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// AtomicExpr - Variadic atomic builtins: __atomic_exchange, __atomic_fetch_*, 4591276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// __atomic_load, __atomic_store, and __atomic_compare_exchange_*, for the 4592ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith/// similarly-named C++11 instructions, and __c11 variants for <stdatomic.h>. 4593ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith/// All of these instructions take one primary pointer and at least one memory 4594ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith/// order. 4595276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanclass AtomicExpr : public Expr { 4596276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 4597ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith enum AtomicOp { 4598ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith#define BUILTIN(ID, TYPE, ATTRS) 4599ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith#define ATOMIC_BUILTIN(ID, TYPE, ATTRS) AO ## ID, 4600ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith#include "clang/Basic/Builtins.def" 4601ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith // Avoid trailing comma 4602ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith BI_First = 0 4603ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith }; 4604ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith 4605276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanprivate: 4606ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith enum { PTR, ORDER, VAL1, ORDER_FAIL, VAL2, WEAK, END_EXPR }; 4607276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Stmt* SubExprs[END_EXPR]; 4608276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned NumSubExprs; 4609276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation BuiltinLoc, RParenLoc; 4610276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp Op; 4611276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4612e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith friend class ASTStmtReader; 4613e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith 4614276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 46153b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer AtomicExpr(SourceLocation BLoc, ArrayRef<Expr*> args, QualType t, 4616dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman AtomicOp op, SourceLocation RP); 4617276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4618e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith /// \brief Determine the number of arguments the specified atomic builtin 4619e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith /// should have. 4620e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith static unsigned getNumSubExprs(AtomicOp Op); 4621e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith 4622276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman /// \brief Build an empty AtomicExpr. 4623276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman explicit AtomicExpr(EmptyShell Empty) : Expr(AtomicExprClass, Empty) { } 4624276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4625276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getPtr() const { 4626276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[PTR]); 4627276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4628276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrder() const { 4629276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER]); 4630276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4631276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal1() const { 4632ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith if (Op == AO__c11_atomic_init) 46337a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall return cast<Expr>(SubExprs[ORDER]); 4634ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > VAL1); 4635276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL1]); 4636276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4637276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrderFail() const { 4638ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > ORDER_FAIL); 4639276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER_FAIL]); 4640276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4641276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal2() const { 4642ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith if (Op == AO__atomic_exchange) 4643ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith return cast<Expr>(SubExprs[ORDER_FAIL]); 4644ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > VAL2); 4645276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL2]); 4646276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4647ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith Expr *getWeak() const { 4648ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > WEAK); 4649ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith return cast<Expr>(SubExprs[WEAK]); 4650ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith } 4651276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4652276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp getOp() const { return Op; } 4653276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned getNumSubExprs() { return NumSubExprs; } 4654276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4655dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 4656dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman 4657276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isVolatile() const { 4658276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return getPtr()->getType()->getPointeeType().isVolatileQualified(); 4659276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4660276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4661276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isCmpXChg() const { 4662ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith return getOp() == AO__c11_atomic_compare_exchange_strong || 4663ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith getOp() == AO__c11_atomic_compare_exchange_weak || 4664ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith getOp() == AO__atomic_compare_exchange || 4665ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith getOp() == AO__atomic_compare_exchange_n; 4666276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4667276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4668276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4669276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getRParenLoc() const { return RParenLoc; } 4670276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 467165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; } 467265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 467365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 4674276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman static bool classof(const Stmt *T) { 4675276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return T->getStmtClass() == AtomicExprClass; 4676276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4677276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4678276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman // Iterators 4679276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman child_range children() { 4680276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return child_range(SubExprs, SubExprs+NumSubExprs); 4681276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4682276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman}; 46835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 46845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 46855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 4686