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 64e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher struct DTB { 65e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher const CastExpr *BasePath; 66e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher const CXXRecordDecl *DerivedClass; 67e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher }; 680a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 69e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher struct P { 70e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher const MemberPointerType *MPT; 71e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher Expr *RHS; 72e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher }; 73e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher 74e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher union { 75e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher struct DTB DerivedToBase; 76e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher FieldDecl *Field; 77e462c60ac3365d3302b7d0a566c5cb7dbe0e5ae3Eric Christopher struct P Ptr; 780a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola }; 790a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 800a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola SubobjectAdjustment(const CastExpr *BasePath, 810a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola const CXXRecordDecl *DerivedClass) 820a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola : Kind(DerivedToBaseAdjustment) { 830a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola DerivedToBase.BasePath = BasePath; 840a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola DerivedToBase.DerivedClass = DerivedClass; 850a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola } 860a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 870a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola SubobjectAdjustment(FieldDecl *Field) 880a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola : Kind(FieldAdjustment) { 890a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola this->Field = Field; 900a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola } 910a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 920a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola SubobjectAdjustment(const MemberPointerType *MPT, Expr *RHS) 930a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola : Kind(MemberPointerAdjustment) { 940a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola this->Ptr.MPT = MPT; 950a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola this->Ptr.RHS = RHS; 960a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola } 970a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola}; 980a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 105898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1068e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCallprotected: 107f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, 108ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool TD, bool VD, bool ID, bool ContainsUnexpandedParameterPack) 109ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Stmt(SC) 110561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor { 1118e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.TypeDependent = TD; 1128e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.ValueDependent = VD; 113561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = ID; 114f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ValueKind = VK; 115f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ObjectKind = OK; 116bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = ContainsUnexpandedParameterPack; 117898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 118898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 119898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1200b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 1210b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 1220b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 124f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 1251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 1269d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 1279d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 1289d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 1299d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 1309d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 1319d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 1329d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 133905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 1348320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 135f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 1361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 1379d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 13877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 139898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 140898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 141898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 1421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 143898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 144898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 145898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 1468e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isValueDependent() const { return ExprBits.ValueDependent; } 147898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1480b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 149ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setValueDependent(bool VD) { 150ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie ExprBits.ValueDependent = VD; 151561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor if (VD) 152561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = true; 153561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 1540b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 155898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 156898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 157898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 158898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 159898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 160898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 162898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 163898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 164898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 165898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 1668e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isTypeDependent() const { return ExprBits.TypeDependent; } 167898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1680b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 169ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setTypeDependent(bool TD) { 170ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie ExprBits.TypeDependent = TD; 171561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor if (TD) 172561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = true; 173561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 174561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor 175561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \brief Whether this expression is instantiation-dependent, meaning that 176561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// it depends in some way on a template parameter, even if neither its type 177561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// nor (constant) value can change due to the template instantiation. 178561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 179561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// In the following example, the expression \c sizeof(sizeof(T() + T())) is 180561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// instantiation-dependent (since it involves a template parameter \c T), but 181561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// is neither type- nor value-dependent, since the type of the inner 182561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \c sizeof is known (\c std::size_t) and therefore the size of the outer 183561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \c sizeof is known. 184561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 185561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \code 186561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// template<typename T> 187561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// void f(T x, T y) { 188561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// sizeof(sizeof(T() + T()); 189561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// } 190561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \endcode 191561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 192ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool isInstantiationDependent() const { 193ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return ExprBits.InstantiationDependent; 194561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 195ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 196561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \brief Set whether this expression is instantiation-dependent or not. 197ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setInstantiationDependent(bool ID) { 198561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = ID; 199561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 2000b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 201d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Whether this expression contains an unexpanded parameter 2024e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// pack (for C++11 variadic templates). 203d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 204d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// Given the following function template: 205d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 206d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \code 207d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// template<typename F, typename ...Types> 208d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// void forward(const F &f, Types &&...args) { 209d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// f(static_cast<Types&&>(args)...); 210d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// } 211d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \endcode 212d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 213d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// The expressions \c args and \c static_cast<Types&&>(args) both 214d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// contain parameter packs. 215ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool containsUnexpandedParameterPack() const { 216ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return ExprBits.ContainsUnexpandedParameterPack; 217d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 218d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 219bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// \brief Set the bit that describes whether this expression 220bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// contains an unexpanded parameter pack. 221bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void setContainsUnexpandedParameterPack(bool PP = true) { 222bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = PP; 223bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor } 224bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 2274f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY; 2281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 229026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 230a6115068cde719142eb394db88612c185cabd05bEli Friedman /// be warned about if the result is unused. If so, fill in expr, location, 231a6115068cde719142eb394db88612c185cabd05bEli Friedman /// and ranges with expr to warn on and source locations/ranges appropriate 232a6115068cde719142eb394db88612c185cabd05bEli Friedman /// for a warning. 233a6115068cde719142eb394db88612c185cabd05bEli Friedman bool isUnusedResultAWarning(const Expr *&WarnExpr, SourceLocation &Loc, 234a6115068cde719142eb394db88612c185cabd05bEli Friedman SourceRange &R1, SourceRange &R2, 235a6115068cde719142eb394db88612c185cabd05bEli Friedman ASTContext &Ctx) const; 2361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2377eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// isLValue - True if this expression is an "l-value" according to 2387eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the rules of the current language. C and C++ give somewhat 2397eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// different rules for this concept, but in general, the result of 2407eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// an l-value expression identifies a specific object whereas the 2417eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// result of an r-value expression is a value detached from any 2427eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// specific storage. 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2444e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// C++11 divides the concept of "r-value" into pure r-values 2457eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// ("pr-values") and so-called expiring values ("x-values"), which 2467eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// identify specific objects that can be safely cannibalized for 2477eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// their resources. This is an unfortunate abuse of terminology on 2487eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the part of the C++ committee. In Clang, when we say "r-value", 2497eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// we generally mean a pr-value. 2507eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isLValue() const { return getValueKind() == VK_LValue; } 2517eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isRValue() const { return getValueKind() == VK_RValue; } 2527eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isXValue() const { return getValueKind() == VK_XValue; } 2537eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isGLValue() const { return getValueKind() != VK_RValue; } 2547eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall 2557eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall enum LValueClassification { 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 2575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 259fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 26086f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 261077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian LV_InvalidMessageExpression, 2622514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 263e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 26436d02af300a207242f0486b4255420d8be796b21Richard Smith LV_ClassTemporary, 26536d02af300a207242f0486b4255420d8be796b21Richard Smith LV_ArrayTemporary 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 2677eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// Reasons why an expression might not be an l-value. 2687eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall LValueClassification ClassifyLValue(ASTContext &Ctx) const; 26953202857c60214d80950a975e6e52aebf30bd16aEli Friedman 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 2715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 274fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 276ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 2775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 2785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 2794f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 28086f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 2812514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 282e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 283077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian MLV_InvalidMessageExpression, 28436d02af300a207242f0486b4255420d8be796b21Richard Smith MLV_ClassTemporary, 28536d02af300a207242f0486b4255420d8be796b21Richard Smith MLV_ArrayTemporary 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 287ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 288ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// does not have an incomplete type, does not have a const-qualified type, 289ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// and if it is a structure or union, does not have any member (including, 290ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// recursively, any member or element of all contained aggregates or unions) 291ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// with a const-qualified type. 292ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// 293ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// \param Loc [in,out] - A source location which *may* be filled 294ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// in with the location of the expression making this a 295ad0fe03b897f9486191e75c8d90c3ffa9b4fd6a5Ted Kremenek /// non-modifiable lvalue, if specified. 2966bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines isModifiableLvalueResult 2976bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines isModifiableLvalue(ASTContext &Ctx, SourceLocation *Loc = nullptr) const; 2981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2994e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// \brief The return type of classify(). Represents the C++11 expression 3002111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 3012111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 3022111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 3032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 3042111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 3052111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 3062111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 3072111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 3082111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 3091c860d5640e8eebb11a5d515a761242b66761b0bPeter Collingbourne CL_AddressableVoid, // Void expression whose address can be taken in C. 3102111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 3112111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 3122111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 31336d02af300a207242f0486b4255420d8be796b21Richard Smith CL_ClassTemporary, // A temporary of class type, or subobject thereof. 31436d02af300a207242f0486b4255420d8be796b21Richard Smith CL_ArrayTemporary, // A temporary of array type. 315077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian CL_ObjCMessageRValue, // ObjC message is an rvalue 3162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 3172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 3182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 3192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 3202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 3212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 3222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 3232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 3242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 3252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 3262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 3272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 3282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 3292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 3302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 3322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 3332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 3352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 3362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 3382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 3392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 3402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 3422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 3432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3442111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 3452111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 3462111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 3472111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 3482111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3492111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 3502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 3512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 3522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 3532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 3542111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 355ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3562c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor /// \brief Create a simple, modifiably lvalue 3572c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor static Classification makeSimpleLValue() { 3582c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor return Classification(CL_LValue, CM_Modifiable); 3592c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor } 360ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 3624e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// \brief Classify - Classify this expression according to the C++11 3632111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 3642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 3654e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// C++11 defines ([basic.lval]) a new taxonomy of expressions to replace the 3662111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 3672111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 3682111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 3692111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 3702111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 3712111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 3722111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 3732111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 3742111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 3756bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return ClassifyImpl(Ctx, nullptr); 3762111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3772111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 378369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief ClassifyModifiable - Classify this expression according to the 3794e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// C++11 expression taxonomy, and see if it is valid on the left side 3802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 3812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 3822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 3832111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 3842111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 3852111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 3862111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 3872111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 3882111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3892111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 390f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKindForType - Given a formal return or parameter type, 391f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// give its value kind. 392f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static ExprValueKind getValueKindForType(QualType T) { 393f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall if (const ReferenceType *RT = T->getAs<ReferenceType>()) 3940943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall return (isa<LValueReferenceType>(RT) 3950943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue 3960943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : (RT->getPointeeType()->isFunctionType() 3970943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue : VK_XValue)); 398f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return VK_RValue; 399f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 400f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 401f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKind - The value kind that this expression produces. 402f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind getValueKind() const { 403f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprValueKind>(ExprBits.ValueKind); 404f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 405f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 406f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getObjectKind - The object kind that this expression produces. 407f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// Object kinds are meaningful only for expressions that yield an 408f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// l-value or x-value. 409f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprObjectKind getObjectKind() const { 410f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprObjectKind>(ExprBits.ObjectKind); 411f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 412f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 41356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool isOrdinaryOrBitFieldObject() const { 41456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprObjectKind OK = getObjectKind(); 41556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return (OK == OK_Ordinary || OK == OK_BitField); 41656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 41756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 418f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setValueKind - Set the value kind produced by this expression. 419f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setValueKind(ExprValueKind Cat) { ExprBits.ValueKind = Cat; } 420f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 421f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setObjectKind - Set the object kind produced by this expression. 422f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setObjectKind(ExprObjectKind Cat) { ExprBits.ObjectKind = Cat; } 423f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 4242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 4252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 4262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 4272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 4282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 429993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall /// \brief Returns true if this expression is a gl-value that 430993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall /// potentially refers to a bit-field. 431993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall /// 432993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall /// In C++, whether a gl-value refers to a bitfield is essentially 433993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall /// an aspect of the value-kind type system. 434993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall bool refersToBitField() const { return getObjectKind() == OK_BitField; } 435993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall 43633bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 43733bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 438993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall /// 439993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall /// Note that this returns a non-null pointer in subtly different 440993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall /// places than refersToBitField returns true. In particular, this can 441993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall /// return a non-null pointer even for r-values loaded from 442993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall /// bit-fields, but it will return null for a conditional bit-field. 443993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall FieldDecl *getSourceBitField(); 444993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall 445993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall const FieldDecl *getSourceBitField() const { 446993f43f24d7a45a5cd4678a3316b0852261fc5d4John McCall return const_cast<Expr*>(this)->getSourceBitField(); 44738d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 4481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 449f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// \brief If this expression is an l-value for an Objective C 450f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// property, find the underlying property reference expression. 451f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const ObjCPropertyRefExpr *getObjCProperty() const; 452f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 453bbff82f302a1dd67589f65912351978905f0c5a7Anna Zaks /// \brief Check if this expression is the ObjC 'self' implicit parameter. 454bbff82f302a1dd67589f65912351978905f0c5a7Anna Zaks bool isObjCSelfExpr() const; 455bbff82f302a1dd67589f65912351978905f0c5a7Anna Zaks 456093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 457093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 4584919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall 4594919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall /// \brief Returns whether this expression has a placeholder type. 4604919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall bool hasPlaceholderType() const { 4614919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return getType()->isPlaceholderType(); 4624919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall } 4634919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall 4644919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall /// \brief Returns whether this expression has a specific placeholder type. 4654919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall bool hasPlaceholderType(BuiltinType::Kind K) const { 46685def357129b6cdfd69a66ad0e6994506418a2a9John McCall assert(BuiltinType::isPlaceholderTypeKind(K)); 4674919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall if (const BuiltinType *BT = dyn_cast<BuiltinType>(getType())) 4684919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return BT->getKind() == K; 4694919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return false; 4704919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall } 471ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 4722b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 4732b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 4742b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 4752b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 4762b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 477ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 4785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 4795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 4805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 4815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 482282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// 483282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// Note: This does not perform the implicit conversions required by C++11 484282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// [expr.const]p5. 48532b5a1e82f535d43e94332183cd330f4a39b2dbdCraig Topper bool isIntegerConstantExpr(llvm::APSInt &Result, const ASTContext &Ctx, 4866bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation *Loc = nullptr, 4875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 48832b5a1e82f535d43e94332183cd330f4a39b2dbdCraig Topper bool isIntegerConstantExpr(const ASTContext &Ctx, 4896bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation *Loc = nullptr) const; 4900e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith 49170488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith /// isCXX98IntegralConstantExpr - Return true if this expression is an 49270488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith /// integral constant expression in C++98. Can only be used in C++. 49332b5a1e82f535d43e94332183cd330f4a39b2dbdCraig Topper bool isCXX98IntegralConstantExpr(const ASTContext &Ctx) const; 49470488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith 4954c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// isCXX11ConstantExpr - Return true if this expression is a constant 4964c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// expression in C++11. Can only be used in C++. 497282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// 498282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// Note: This does not perform the implicit conversions required by C++11 499282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// [expr.const]p5. 5006bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool isCXX11ConstantExpr(const ASTContext &Ctx, APValue *Result = nullptr, 5016bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation *Loc = nullptr) const; 5024c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith 503745f5147e065900267c85a5568785a1991d4838fRichard Smith /// isPotentialConstantExpr - Return true if this function's definition 504745f5147e065900267c85a5568785a1991d4838fRichard Smith /// might be usable in a constant expression in C++11, if it were marked 505745f5147e065900267c85a5568785a1991d4838fRichard Smith /// constexpr. Return false if the function can never produce a constant 506745f5147e065900267c85a5568785a1991d4838fRichard Smith /// expression, along with diagnostics describing why not. 507745f5147e065900267c85a5568785a1991d4838fRichard Smith static bool isPotentialConstantExpr(const FunctionDecl *FD, 508cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVectorImpl< 509745f5147e065900267c85a5568785a1991d4838fRichard Smith PartialDiagnosticAt> &Diags); 510745f5147e065900267c85a5568785a1991d4838fRichard Smith 511651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// isPotentialConstantExprUnevaluted - Return true if this expression might 512651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// be usable in a constant expression in C++11 in an unevaluated context, if 513651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// it were in function FD marked constexpr. Return false if the function can 514651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// never produce a constant expression, along with diagnostics describing 515651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// why not. 516651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines static bool isPotentialConstantExprUnevaluated(Expr *E, 517651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const FunctionDecl *FD, 518651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SmallVectorImpl< 519651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines PartialDiagnosticAt> &Diags); 520651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 5210e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// isConstantInitializer - Returns true if this expression can be emitted to 5220e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// IR as a constant, and thus can be used as a constant initializer in C. 5236bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /// If this expression is not constant and Culprit is non-null, 5246bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /// it is used to store the address of first non constant expr. 5256bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool isConstantInitializer(ASTContext &Ctx, bool ForRef, 5266bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const Expr **Culprit = nullptr) const; 5271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5281e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalStatus is a struct with detailed info about an evaluation in progress. 5291e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalStatus { 53094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 53194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 53294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 5331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 534dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// Diag - If this is non-null, it will be filled in with a stack of notes 535dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// indicating why evaluation failed (or why it failed to produce a constant 536dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression). 537dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// If the expression is unfoldable, the notes will indicate why it's not 538dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// foldable. If the expression is foldable, but not a constant expression, 539dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// the notes will describes why it isn't a constant expression. If the 540dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression *is* a constant expression, no notes will be produced. 541cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVectorImpl<PartialDiagnosticAt> *Diag; 542dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith 5436bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines EvalStatus() : HasSideEffects(false), Diag(nullptr) {} 544e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 545e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 546e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 547e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 548e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 549e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 55094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 55194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 5521e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalResult is a struct with detailed info about an evaluated expression. 5531e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalResult : EvalStatus { 5541e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// Val - This is the value the expression can be folded to. 5551e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith APValue Val; 5561e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 5571e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // isGlobalLValue - Return true if the evaluated lvalue expression 5581e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // is global. 5591e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith bool isGlobalLValue() const; 5601e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith }; 5611e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 56251f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsRValue - Return true if this is a constant which we can fold to 56351f4708c00110940ca3f337961915f2ca1668375Richard Smith /// an rvalue using any crazy technique (that has nothing to do with language 56451f4708c00110940ca3f337961915f2ca1668375Richard Smith /// standards) that we want to, even if the expression has side-effects. If 56551f4708c00110940ca3f337961915f2ca1668375Richard Smith /// this function returns true, it returns the folded constant in Result. If 56651f4708c00110940ca3f337961915f2ca1668375Richard Smith /// the expression is a glvalue, an lvalue-to-rvalue conversion will be 56751f4708c00110940ca3f337961915f2ca1668375Richard Smith /// applied. 56851f4708c00110940ca3f337961915f2ca1668375Richard Smith bool EvaluateAsRValue(EvalResult &Result, const ASTContext &Ctx) const; 5695b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 570cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 571cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 572a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// any crazy technique that we want to, even if the expression has 573a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// side-effects. 5744ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsBooleanCondition(bool &Result, const ASTContext &Ctx) const; 575cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 57680d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith enum SideEffectsKind { SE_NoSideEffects, SE_AllowSideEffects }; 57780d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith 578a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// EvaluateAsInt - Return true if this is a constant which we can fold and 57980d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith /// convert to an integer, using any crazy technique that we want to. 58080d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith bool EvaluateAsInt(llvm::APSInt &Result, const ASTContext &Ctx, 58180d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith SideEffectsKind AllowSideEffects = SE_NoSideEffects) const; 582a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith 58351f4708c00110940ca3f337961915f2ca1668375Richard Smith /// isEvaluatable - Call EvaluateAsRValue to see if this expression can be 58451f4708c00110940ca3f337961915f2ca1668375Richard Smith /// constant folded without side-effects, but discard the result. 5854ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isEvaluatable(const ASTContext &Ctx) const; 586c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 5876ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 58860b70388e43d146d968a1cc0705b30cb2d7263feRichard Smith /// which have any effect other than producing a value. Example is a function 58960b70388e43d146d968a1cc0705b30cb2d7263feRichard Smith /// call, volatile variable read, or throwing an exception. 5904ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool HasSideEffects(const ASTContext &Ctx) const; 59151f4708c00110940ca3f337961915f2ca1668375Richard Smith 59225d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor /// \brief Determine whether this expression involves a call to any function 59325d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor /// that is not trivial. 59425d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor bool hasNonTrivialCall(ASTContext &Ctx); 5950004329758b99d2b92096b353e35c427ebbee622Richard Smith 59651f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateKnownConstInt - Call EvaluateAsRValue and return the folded 59751f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. This must be called on an expression that constant folds to an 59851f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. 599a18e70b25c85d7e653e642b5e6e58d6063af3d83Fariborz Jahanian llvm::APSInt EvaluateKnownConstInt(const ASTContext &Ctx, 6006bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SmallVectorImpl<PartialDiagnosticAt> *Diag = nullptr) const; 6010004329758b99d2b92096b353e35c427ebbee622Richard Smith 6020004329758b99d2b92096b353e35c427ebbee622Richard Smith void EvaluateForOverflow(const ASTContext &Ctx) const; 60351fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 60451f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsLValue - Evaluate an expression to see if we can fold it to an 60551f4708c00110940ca3f337961915f2ca1668375Richard Smith /// lvalue with link time known address, with no side-effects. 6064ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsLValue(EvalResult &Result, const ASTContext &Ctx) const; 6071b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 608099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// EvaluateAsInitializer - Evaluate an expression as if it were the 609099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// initializer of the given declaration. Returns true if the initializer 610099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// can be folded to a constant, and produces any relevant notes. In C++11, 611099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// notes will be produced if the expression is not a constant expression. 612099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith bool EvaluateAsInitializer(APValue &Result, const ASTContext &Ctx, 613099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith const VarDecl *VD, 614cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVectorImpl<PartialDiagnosticAt> &Notes) const; 615099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith 616651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// EvaluateWithSubstitution - Evaluate an expression as if from the context 617651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// of a call to the given function with the given arguments, inside an 618651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// unevaluated context. Returns true if the expression could be folded to a 619651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// constant. 620651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool EvaluateWithSubstitution(APValue &Value, ASTContext &Ctx, 621651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const FunctionDecl *Callee, 622ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ArrayRef<const Expr*> Args) const; 623651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 62482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Enumeration used to describe the kind of Null pointer constant 62582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// returned from \c isNullPointerConstant(). 62682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth enum NullPointerConstantKind { 62782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is not a Null pointer constant. 62882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_NotNull = 0, 62982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 63050800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// \brief Expression is a Null pointer constant built from a zero integer 63150800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// expression that is not a simple, possibly parenthesized, zero literal. 63250800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// C++ Core Issue 903 will classify these expressions as "not pointers" 63350800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// once it is adopted. 63450800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#903 63550800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie NPCK_ZeroExpression, 63650800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie 63750800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie /// \brief Expression is a Null pointer constant built from a literal zero. 63850800fc551ac6b8a95cca662223e7f061bbd169aDavid Blaikie NPCK_ZeroLiteral, 63982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 6404e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith /// \brief Expression is a C++11 nullptr. 6414e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith NPCK_CXX11_nullptr, 64282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 64382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a GNU-style __null constant. 64482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_GNUNull 64582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth }; 64682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 647ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 648ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 649ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 650ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 651ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 652ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 653ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 654ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 655ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 656ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 657ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 658ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 659ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 660ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 661ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 66282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to 66382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// a Null pointer constant. The return value can further distinguish the 66482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// kind of NULL pointer constant that was detected. 66582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantKind isNullPointerConstant( 66682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth ASTContext &Ctx, 66782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantValueDependence NPC) const; 668efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 66944baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 6701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 671102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 6721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 67311ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 67411ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 67511ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 676864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// \brief Given an expression of bound-member type, find the type 677864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// of the member. Returns null if this is an *overloaded* bound 678864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// member expression. 679864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall static QualType findBoundMemberType(const Expr *expr); 680864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 68191a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// IgnoreImpCasts - Skip past any implicit casts which might 68291a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// surround this expression. Only skips ImplicitCastExprs. 683f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreImpCasts() LLVM_READONLY; 68491a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 6857e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// IgnoreImplicit - Skip past any implicit AST nodes which might 6867e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// surround this expression. 687f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreImplicit() LLVM_READONLY { 688f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar return cast<Expr>(Stmt::IgnoreImplicit()); 689f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar } 6907e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 691132283beb1b032e0acd09bdfb45dceadeea0026eJordan Rose const Expr *IgnoreImplicit() const LLVM_READONLY { 692132283beb1b032e0acd09bdfb45dceadeea0026eJordan Rose return const_cast<Expr*>(this)->IgnoreImplicit(); 693132283beb1b032e0acd09bdfb45dceadeea0026eJordan Rose } 694132283beb1b032e0acd09bdfb45dceadeea0026eJordan Rose 6954e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 6961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 6974e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 6984e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 699f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParens() LLVM_READONLY; 70056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 70156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 70227c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 703f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenCasts() LLVM_READONLY; 7041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7056bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /// Ignore casts. Strip off any CastExprs, returning their operand. 7066bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Expr *IgnoreCasts() LLVM_READONLY; 7076bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 708ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off 709ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// any ParenExpr or ImplicitCastExprs, returning their operand. 710f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenImpCasts() LLVM_READONLY; 7112fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 7122f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// IgnoreConversionOperator - Ignore conversion operator. If this Expr is a 7132f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// call to a conversion operator, return the argument. 714f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreConversionOperator() LLVM_READONLY; 7152f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 716f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreConversionOperator() const LLVM_READONLY { 7172f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg return const_cast<Expr*>(this)->IgnoreConversionOperator(); 7182f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg } 7192f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 720f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenImpCasts() const LLVM_READONLY { 7214d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 7224d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 723ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 724f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 725f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 726f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenLValueCasts() LLVM_READONLY; 727ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 728f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenLValueCasts() const LLVM_READONLY { 729f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 730f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 7314d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 732ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 733ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 734ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 735f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenNoopCasts(ASTContext &Ctx) LLVM_READONLY; 7361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 737632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola /// Ignore parentheses and derived-to-base casts. 738632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola Expr *ignoreParenBaseCasts() LLVM_READONLY; 739632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola 740632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola const Expr *ignoreParenBaseCasts() const LLVM_READONLY { 741632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola return const_cast<Expr*>(this)->ignoreParenBaseCasts(); 742632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola } 743632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola 7446eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 7456eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 7466eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 747ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// by semantic analysis for function calls, object constructions, etc. in 7486eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 7496eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 7506eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 7516eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 752ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 753558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 754558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 755558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 7562f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 75775e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Whether this expression is an implicit reference to 'this' in C++. 75875e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitCXXThis() const; 75991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 760f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreImpCasts() const LLVM_READONLY { 76191a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return const_cast<Expr*>(this)->IgnoreImpCasts(); 76291a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall } 763f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParens() const LLVM_READONLY { 7644e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 7654e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 766f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenCasts() const LLVM_READONLY { 76756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 76856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 7696bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /// Strip off casts, but keep parentheses. 7706bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const Expr *IgnoreCasts() const LLVM_READONLY { 7716bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return const_cast<Expr*>(this)->IgnoreCasts(); 7726bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines } 7736bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 774f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const LLVM_READONLY { 775ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 776ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 7771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 778cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko static bool hasAnyTypeDependentArguments(ArrayRef<Expr *> Exprs); 779898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 7808d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// \brief For an expression of class type or pointer to class type, 7818d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// return the most derived class decl the expression is known to refer to. 7820b4fe503ef00d9f8ea330850d3e3b303e9c7c876Rafael Espindola /// 7830b4fe503ef00d9f8ea330850d3e3b303e9c7c876Rafael Espindola /// If this expression is a cast, this method looks through it to find the 7848d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// most derived decl that can be inferred from the expression. 7858d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// This is valid because derived-to-base conversions have undefined 7868d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// behavior if the object isn't dynamically of the derived type. 7878d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola const CXXRecordDecl *getBestDynamicClassType() const; 7880b4fe503ef00d9f8ea330850d3e3b303e9c7c876Rafael Espindola 7890a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola /// Walk outwards from an expression we want to bind a reference to and 7900a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola /// find the expression whose lifetime needs to be extended. Record 7914e43dec4df9d7dd8e07b47bb15967f1b733a9bc6Richard Smith /// the LHSs of comma expressions and adjustments needed along the path. 7924e43dec4df9d7dd8e07b47bb15967f1b733a9bc6Richard Smith const Expr *skipRValueSubobjectAdjustments( 7934e43dec4df9d7dd8e07b47bb15967f1b733a9bc6Richard Smith SmallVectorImpl<const Expr *> &CommaLHS, 7944e43dec4df9d7dd8e07b47bb15967f1b733a9bc6Richard Smith SmallVectorImpl<SubobjectAdjustment> &Adjustments) const; 7950a7dd835184343ec9149277b668ecdc5d49fe8b0Rafael Espindola 7961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 7981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 8045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 8055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 8065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 80756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 80856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// fixed type and value class. These don't correspond to concrete 80956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// syntax; instead they're used to express operations (usually copy 81056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operations) on values whose source is generally obvious from 81156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// context. 81256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass OpaqueValueExpr : public Expr { 81356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 81456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *SourceExpr; 81556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation Loc; 816ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 81756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 818ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK, 81997df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor ExprObjectKind OK = OK_Ordinary, 8206bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Expr *SourceExpr = nullptr) 82156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 82297df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor T->isDependentType(), 82397df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor T->isDependentType() || 82497df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor (SourceExpr && SourceExpr->isValueDependent()), 825561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isInstantiationDependentType(), 826ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie false), 82797df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor SourceExpr(SourceExpr), Loc(Loc) { 82856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 82956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 83056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Given an expression which invokes a copy constructor --- i.e. a 83156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// CXXConstructExpr, possibly wrapped in an ExprWithCleanups --- 83256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// find the OpaqueValueExpr that's the source of the construction. 83356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static const OpaqueValueExpr *findInCopyConstruct(const Expr *expr); 83456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 83556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit OpaqueValueExpr(EmptyShell Empty) 83656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, Empty) { } 83756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 83856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Retrieve the location of this expression. 83956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getLocation() const { return Loc; } 840ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 84165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 84265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return SourceExpr ? SourceExpr->getLocStart() : Loc; 84365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 84465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 84565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return SourceExpr ? SourceExpr->getLocEnd() : Loc; 84656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 8474f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { 84856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getExprLoc(); 84956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 85056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 85156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 85256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { return child_range(); } 85356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 85456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression of an opaque value expression is the 85556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which originally generated the value. This is 85656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// provided as a convenience for analyses that don't wish to 85756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// precisely model the execution behavior of the program. 85856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 85956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression is typically set when building the 86056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which binds the opaque value expression in the first 86156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// place. 86256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getSourceExpr() const { return SourceExpr; } 86356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 86456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 86556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == OpaqueValueExprClass; 86656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 86756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 86856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 869cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// \brief A reference to a declared variable, function, enum, etc. 870cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// [C99 6.5.1p2] 871cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 872cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// This encodes all the information about how a declaration is referenced 873cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// within an expression. 874cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 875cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// There are several optional constructs attached to DeclRefExprs only when 876cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// they apply in order to conserve memory. These are laid out past the end of 877cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// the object, and flags in the DeclRefExprBitfield track whether they exist: 878cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 879cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// DeclRefExprBits.HasQualifier: 880cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has a C++ 881cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// nested-name-specifier. 8823aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// DeclRefExprBits.HasFoundDecl: 8833aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// Specifies when this declaration reference expression has a record of 8843aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// a NamedDecl (different from the referenced ValueDecl) which was found 8853aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// during name lookup and/or overload resolution. 886e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara/// DeclRefExprBits.HasTemplateKWAndArgsInfo: 887cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has an explicit 888e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara/// C++ template keyword and/or template argument list. 889f4b88a45902af1802a1cb42ba48b1c474474f228John McCall/// DeclRefExprBits.RefersToEnclosingLocal 890f4b88a45902af1802a1cb42ba48b1c474474f228John McCall/// Specifies when this declaration reference expression (validly) 891f4b88a45902af1802a1cb42ba48b1c474474f228John McCall/// refers to a local variable from a different function. 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 893cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The declaration that we are referencing. 894cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *D; 8952577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 896cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The location of the declaration name itself. 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8989e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 899cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief Provides source/type location info for the declaration name 900cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// embedded in D. 9012577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 9022577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 9036857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 9046857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc &getInternalQualifierLoc() { 9057e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth assert(hasQualifier()); 9066857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return *reinterpret_cast<NestedNameSpecifierLoc *>(this + 1); 907a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 908cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth 9096857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 9106857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth const NestedNameSpecifierLoc &getInternalQualifierLoc() const { 9116857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalQualifierLoc(); 912a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 913096832c5ed5b9106fa177ebc148489760c3bc496John McCall 9143aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Test whether there is a distinct FoundDecl attached to the end of 9153aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// this DRE. 9163aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool hasFoundDecl() const { return DeclRefExprBits.HasFoundDecl; } 9173aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 9183aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 919063820655db8121f0022a7c51458463c7250324cBenjamin Kramer /// reference occurred. 9203aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *&getInternalFoundDecl() { 9213aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth assert(hasFoundDecl()); 9223aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 9233aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(&getInternalQualifierLoc() + 1); 9243aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(this + 1); 9253aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 9263aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 9273aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 928063820655db8121f0022a7c51458463c7250324cBenjamin Kramer /// reference occurred. 9293aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getInternalFoundDecl() const { 9303aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalFoundDecl(); 9313aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 9323aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 9339db7a7eb4e23758e041752c9c0c0ec1663d5a0afCraig Topper DeclRefExpr(const ASTContext &Ctx, 9343d13c5a1e72ed8f8be9c083791d30643d1b1ec43Daniel Dunbar NestedNameSpecifierLoc QualifierLoc, 935e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 936f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ValueDecl *D, bool refersToEnclosingLocal, 937f4b88a45902af1802a1cb42ba48b1c474474f228John McCall const DeclarationNameInfo &NameInfo, 9383aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD, 9392577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 940f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 9412577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 942663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 943663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 944663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 9457e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 9460da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 9470da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 9489db7a7eb4e23758e041752c9c0c0ec1663d5a0afCraig Topper void computeDependence(const ASTContext &C); 9499e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 951f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExpr(ValueDecl *D, bool refersToEnclosingLocal, QualType T, 952f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ExprValueKind VK, SourceLocation L, 9535b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor const DeclarationNameLoc &LocInfo = DeclarationNameLoc()) 954561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(DeclRefExprClass, T, VK, OK_Ordinary, false, false, false, false), 9555b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor D(D), Loc(L), DNLoc(LocInfo) { 956cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth DeclRefExprBits.HasQualifier = 0; 957e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara DeclRefExprBits.HasTemplateKWAndArgsInfo = 0; 9583aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth DeclRefExprBits.HasFoundDecl = 0; 9597cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = 0; 960f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExprBits.RefersToEnclosingLocal = refersToEnclosingLocal; 9613d13c5a1e72ed8f8be9c083791d30643d1b1ec43Daniel Dunbar computeDependence(D->getASTContext()); 9620da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 9631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9646bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines static DeclRefExpr * 9656bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Create(const ASTContext &Context, NestedNameSpecifierLoc QualifierLoc, 9666bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation TemplateKWLoc, ValueDecl *D, bool isEnclosingLocal, 9676bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation NameLoc, QualType T, ExprValueKind VK, 9686bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NamedDecl *FoundD = nullptr, 9696bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const TemplateArgumentListInfo *TemplateArgs = nullptr); 9706bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 9716bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines static DeclRefExpr * 9726bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Create(const ASTContext &Context, NestedNameSpecifierLoc QualifierLoc, 9736bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation TemplateKWLoc, ValueDecl *D, bool isEnclosingLocal, 9746bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const DeclarationNameInfo &NameInfo, QualType T, ExprValueKind VK, 9756bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NamedDecl *FoundD = nullptr, 9766bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const TemplateArgumentListInfo *TemplateArgs = nullptr); 9772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 978663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 9799db7a7eb4e23758e041752c9c0c0ec1663d5a0afCraig Topper static DeclRefExpr *CreateEmpty(const ASTContext &Context, 9803aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasQualifier, 9813aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasFoundDecl, 982e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool HasTemplateKWAndArgsInfo, 983def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor unsigned NumTemplateArgs); 9847e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 985cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *getDecl() { return D; } 986cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth const ValueDecl *getDecl() const { return D; } 987cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth void setDecl(ValueDecl *NewD) { D = NewD; } 988904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 9892577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 9902577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 9912577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 9922577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 9939e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 9940b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 995aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY; 996aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY; 9971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 998a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 999a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 1000cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth bool hasQualifier() const { return DeclRefExprBits.HasQualifier; } 10017e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 10027e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 1003a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 1004a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 1005a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 10066bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 10077e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 10086857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc().getNestedNameSpecifier(); 1009a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 101040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 10117e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 101240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// that precedes the name, with source-location information. 101340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 101440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 101540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 10167e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 10176857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc(); 101840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 101940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 1020063820655db8121f0022a7c51458463c7250324cBenjamin Kramer /// \brief Get the NamedDecl through which this reference occurred. 10213aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// 10223aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// This Decl may be different from the ValueDecl actually referred to in the 10233aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// presence of using declarations, etc. It always returns non-NULL, and may 10243aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// simple return the ValueDecl when appropriate. 10253aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getFoundDecl() { 10263aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 10273aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 10283aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 10293aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Get the NamedDecl through which this reference occurred. 10303aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// See non-const variant. 10313aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth const NamedDecl *getFoundDecl() const { 10323aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 10333aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 10343aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 1035e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKWAndArgsInfo() const { 1036e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return DeclRefExprBits.HasTemplateKWAndArgsInfo; 1037096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 10387e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1039e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 1040e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() { 1041e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) 10426bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 1043e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 10443aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasFoundDecl()) 1045e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 10463aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalFoundDecl() + 1); 10473aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 10483aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 1049e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 10503aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalQualifierLoc() + 1); 10517e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1052e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>(this + 1); 1053e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 1054e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1055e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 1056e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() const { 1057e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return const_cast<DeclRefExpr*>(this)->getTemplateKWAndArgsInfo(); 1058e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 1059e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1060e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the template keyword preceding 1061e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// this name, if any. 1062e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getTemplateKeywordLoc() const { 1063e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 1064e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->getTemplateKeywordLoc(); 1065e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 1066e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1067e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the left angle bracket starting the 1068e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the name, if any. 1069e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getLAngleLoc() const { 1070e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 1071e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->LAngleLoc; 1072e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 1073e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1074e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the right angle bracket ending the 1075e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the name, if any. 1076e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getRAngleLoc() const { 1077e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 1078e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->RAngleLoc; 1079e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 1080e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1081e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether the name in this declaration reference 1082e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// was preceded by the template keyword. 1083e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); } 1084e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1085e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether this declaration reference was followed by an 1086e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list. 1087e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); } 1088e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 1089e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the explicit template argument list that followed the 1090e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// member template name. 1091e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 1092e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara assert(hasExplicitTemplateArgs()); 1093e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return *getTemplateKWAndArgsInfo(); 1094096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 10957e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1096096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 1097096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 1098b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 1099096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 1100a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 1101d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 1102096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 1103096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 1104096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 1105e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateArgumentListInfo *getOptionalExplicitTemplateArgs() const { 11066bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (!hasExplicitTemplateArgs()) return nullptr; 1107096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 1108096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 11097e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1110d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1111d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1112d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1113096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 1114096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 1115d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 11167e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1117a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 1118a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 1119833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1120096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 11216bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 11227e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1123096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 1124a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 11257e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1126a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1127a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 1128a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 1129096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 1130a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 11317e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1132096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 1133a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 11347e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 11357cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this expression refers to a function that 11367cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 11377cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 11387cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return DeclRefExprBits.HadMultipleCandidates; 11397cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 11407cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 11417cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a function that was resolved from an overloaded set having size 11427cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 11437cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 11447cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = V; 11457cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 11467cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 1147f4b88a45902af1802a1cb42ba48b1c474474f228John McCall /// Does this DeclRefExpr refer to a local declaration from an 1148f4b88a45902af1802a1cb42ba48b1c474474f228John McCall /// enclosing function scope? 1149f4b88a45902af1802a1cb42ba48b1c474474f228John McCall bool refersToEnclosingLocal() const { 1150f4b88a45902af1802a1cb42ba48b1c474474f228John McCall return DeclRefExprBits.RefersToEnclosingLocal; 1151f4b88a45902af1802a1cb42ba48b1c474474f228John McCall } 1152f4b88a45902af1802a1cb42ba48b1c474474f228John McCall 11531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 115499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 115777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 115863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 11597e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 116060adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 11613397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1164d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 1165d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 1166227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 1167227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 1168227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 1169227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 117028ad063b279378b19cb0704f977429df366a151eNico Weber LFunction, // Same as Function, but as wide string. 1171bafa74f360cb3ec82fa8c688845330f491d167fdDavid Majnemer FuncDName, 11726bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines FuncSig, 1173848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 1174848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 1175848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 1176848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 1177227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 11781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1179227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 1180227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 1181227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 1182227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 11831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 1184f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 1185ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie type->isDependentType(), type->isDependentType(), 1186561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType(), 1187bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 1188f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 11891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 119017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 11911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 119217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 119317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1194227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 119517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 119617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 119717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 119817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 119917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1200848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 12013a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 120265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Loc; } 120365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Loc; } 1204227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 12051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 1207227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 12081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 120977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 121063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 1211227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 1212227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 12139996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 12149996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 12159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 12169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 12179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 12189996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 12199996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 12209996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 12219996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 12229996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 12239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 12249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 12259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 122691219326471798c7d3b02dc48691581580338969Benjamin Kramer unsigned BitWidth; 12279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 12289996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 12299996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 1230f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko APNumericStorage(const APNumericStorage &) LLVM_DELETED_FUNCTION; 1231f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko void operator=(const APNumericStorage &) LLVM_DELETED_FUNCTION; 12329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 12339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 123491219326471798c7d3b02dc48691581580338969Benjamin Kramer APNumericStorage() : VAL(0), BitWidth(0) { } 12359996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 12369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 12379996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 12389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 12399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 12409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 12419996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 12429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 124305ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper void setIntValue(const ASTContext &C, const llvm::APInt &Val); 12449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 12459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 124691219326471798c7d3b02dc48691581580338969Benjamin Kramerclass APIntStorage : private APNumericStorage { 1247ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 1248ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie llvm::APInt getValue() const { return getIntValue(); } 124905ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper void setValue(const ASTContext &C, const llvm::APInt &Val) { 125005ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper setIntValue(C, Val); 125105ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper } 12529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 12539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 1254bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramerclass APFloatStorage : private APNumericStorage { 1255ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 12569ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover llvm::APFloat getValue(const llvm::fltSemantics &Semantics) const { 12579ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover return llvm::APFloat(Semantics, getIntValue()); 125831dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka } 125905ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper void setValue(const ASTContext &C, const llvm::APFloat &Val) { 12609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 12619996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 12629996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 12639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 126491219326471798c7d3b02dc48691581580338969Benjamin Kramerclass IntegerLiteral : public Expr, public APIntStorage { 12655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12669996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 12679996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 12689996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 12699996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 12709996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 12715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 12735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 127405ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper IntegerLiteral(const ASTContext &C, const llvm::APInt &V, QualType type, 1275478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer SourceLocation l); 1276a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 12771dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new integer literal with value 'V' and type 'type'. 12781dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param type - either IntTy, LongTy, LongLongTy, UnsignedIntTy, 12791dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// UnsignedLongTy, or UnsignedLongLongTy which should match the size of V 12801dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param V - the value that the returned integer literal contains. 128105ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static IntegerLiteral *Create(const ASTContext &C, const llvm::APInt &V, 12829996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 12831dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new empty integer literal. 128405ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static IntegerLiteral *Create(const ASTContext &C, EmptyShell Empty); 12850b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 128665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Loc; } 128765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Loc; } 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1289313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 1290313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 1291313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 12920b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 12930b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 12941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 129877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 129963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 13035cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 13045cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum CharacterKind { 13055cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 13065cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 13075cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 13085cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 13095cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 13105cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 13115cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 13135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 13145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 13155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 13165cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor CharacterLiteral(unsigned value, CharacterKind kind, QualType type, 13175cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation l) 1318bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1319561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1320bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer Value(value), Loc(l) { 1321bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer CharacterLiteralBits.Kind = kind; 13225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13230b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 13240b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 13250b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 13260b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1327018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 1328bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer CharacterKind getKind() const { 1329bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer return static_cast<CharacterKind>(CharacterLiteralBits.Kind); 1330bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 13311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 133265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Loc; } 133365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Loc; } 13341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 13365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13370b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 1338bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setKind(CharacterKind kind) { CharacterLiteralBits.Kind = kind; } 13390b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 13400b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 13411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 13421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 13435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 134477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 134577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 134663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1349bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramerclass FloatingLiteral : public Expr, private APFloatStorage { 13505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 13519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 135205ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper FloatingLiteral(const ASTContext &C, const llvm::APFloat &V, bool isexact, 1353478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer QualType Type, SourceLocation L); 13545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 135517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 135605ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper explicit FloatingLiteral(const ASTContext &C, EmptyShell Empty); 135717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 13589996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 135905ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static FloatingLiteral *Create(const ASTContext &C, const llvm::APFloat &V, 13609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 136105ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static FloatingLiteral *Create(const ASTContext &C, EmptyShell Empty); 13629996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 1363bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer llvm::APFloat getValue() const { 13649ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover return APFloatStorage::getValue(getSemantics()); 1365bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 136605ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper void setValue(const ASTContext &C, const llvm::APFloat &Val) { 13679ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover assert(&getSemantics() == &Val.getSemantics() && "Inconsistent semantics"); 1368bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer APFloatStorage::setValue(C, Val); 13699996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 137017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 13719ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// Get a raw enumeration value representing the floating-point semantics of 13729ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// this literal (32-bit IEEE, x87, ...), suitable for serialisation. 13739ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover APFloatSemantics getRawSemantics() const { 13749ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover return static_cast<APFloatSemantics>(FloatingLiteralBits.Semantics); 13759ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover } 13769ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover 13779ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// Set the raw enumeration value representing the floating-point semantics of 13789ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// this literal (32-bit IEEE, x87, ...), suitable for serialisation. 13799ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover void setRawSemantics(APFloatSemantics Sem) { 13809ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover FloatingLiteralBits.Semantics = Sem; 13819ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover } 13829ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover 13839ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// Return the APFloat semantics this literal uses. 13849ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover const llvm::fltSemantics &getSemantics() const; 13859ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover 13869ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover /// Set the APFloat semantics this literal uses. 13879ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover void setSemantics(const llvm::fltSemantics &Sem); 13889ec55f24b8f848bb37a9971100cf2fca379d5572Tim Northover 1389bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer bool isExact() const { return FloatingLiteralBits.IsExact; } 1390bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setExact(bool E) { FloatingLiteralBits.IsExact = E; } 1391c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 1392da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 1393da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 1394da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 1395da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 13961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 139717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 139817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 139917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 140065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Loc; } 140165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Loc; } 14025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 14055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 140777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 140863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 14095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14115d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 14125d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 14135d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 14145d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 14155d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 14165d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 14175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 14185d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 14195d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 1420bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false, 1421561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1422f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 14231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1424cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 14251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 1426cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 1427cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 14285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 14295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1430cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1431cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 143265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Val->getLocStart(); } 143365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Val->getLocEnd(); } 143465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 14351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 14375d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 14381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14395d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 144063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 14415d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 14425d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1443e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1444a1ec2b0dbfd33cc3b4b7ac003a390995fc2305c6Jordan Rose/// or L"bar" (wide strings). The actual string is returned by getBytes() 1445e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1446a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1447c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1448c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1449690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1450690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 14518bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1452690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1453c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1454c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1455c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1456c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1457c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1458c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 14595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 14605cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 14615cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum StringKind { 14625cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 14635cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 14645cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF8, 14655cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 14665cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 14675cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 14685cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 14695cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 14703e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson friend class ASTStmtReader; 14713e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson 147264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman union { 147364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const char *asChar; 147464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint16_t *asUInt16; 147564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint32_t *asUInt32; 147664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } StrData; 147764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned Length; 14780840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned CharByteWidth : 4; 14795cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor unsigned Kind : 3; 14800840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned IsPascal : 1; 14810840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned NumConcatenated; 1482726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 14832085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1484f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1485561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false, false, 1486561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false) {} 14871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 148864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman static int mapCharByteWidth(TargetInfo const &target,StringKind k); 148964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 14905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14912085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 14922085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 149305ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static StringLiteral *Create(const ASTContext &C, StringRef Str, 149405ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper StringKind Kind, bool Pascal, QualType Ty, 1495a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 14962085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 14972085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 149805ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static StringLiteral *Create(const ASTContext &C, StringRef Str, 149905ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper StringKind Kind, bool Pascal, QualType Ty, 15005cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation Loc) { 15015cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor return Create(C, Str, Kind, Pascal, Ty, &Loc, 1); 15022085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1503a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1504673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 150505ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static StringLiteral *CreateEmpty(const ASTContext &C, unsigned NumStrs); 1506673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1507686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef getString() const { 150864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert(CharByteWidth==1 150964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman && "This function is used in places that assume strings use char"); 151064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(StrData.asChar, getByteLength()); 151164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 151264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 15130982205bade2fb4fc984c27b2ab401e683963b10James Dennett /// Allow access to clients that need the byte representation, such as 15140982205bade2fb4fc984c27b2ab401e683963b10James Dennett /// ASTWriterStmt::VisitStringLiteral(). 151564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringRef getBytes() const { 1516e91e0ae772004912285ccc3848b27208da8c045bChris Lattner // FIXME: StringRef may not be the right type to use as a result for this. 1517e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 1) 1518e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StringRef(StrData.asChar, getByteLength()); 1519e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 4) 152064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(reinterpret_cast<const char*>(StrData.asUInt32), 152164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman getByteLength()); 1522e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(CharByteWidth == 2 && "unsupported CharByteWidth"); 1523e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StringRef(reinterpret_cast<const char*>(StrData.asUInt16), 1524e91e0ae772004912285ccc3848b27208da8c045bChris Lattner getByteLength()); 1525b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 15262f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 1527ae54121c15cdd38f415f6fdda48215ab5e4dcee1Alexander Kornienko void outputString(raw_ostream &OS) const; 15288ab09da1faaa33b9fa78de59cc4e191bfe9907b5Richard Trieu 152964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman uint32_t getCodeUnit(size_t i) const { 1530e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(i < Length && "out of bounds access"); 1531e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 1) 153264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return static_cast<unsigned char>(StrData.asChar[i]); 1533e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 4) 1534e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StrData.asUInt32[i]; 1535e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(CharByteWidth == 2 && "unsupported CharByteWidth"); 1536e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StrData.asUInt16[i]; 153764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 153864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 153964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getByteLength() const { return CharByteWidth*Length; } 154064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getLength() const { return Length; } 154164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getCharByteWidth() const { return CharByteWidth; } 1542673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1543673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 154405ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper void setString(const ASTContext &C, StringRef Str, 154564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringKind Kind, bool IsPascal); 1546673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 15475cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor StringKind getKind() const { return static_cast<StringKind>(Kind); } 1548ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1549ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 15505cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isAscii() const { return Kind == Ascii; } 15515cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isWide() const { return Kind == Wide; } 15525cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF8() const { return Kind == UTF8; } 15535cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF16() const { return Kind == UTF16; } 15545cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF32() const { return Kind == UTF32; } 15553e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool isPascal() const { return IsPascal; } 15565cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 15578d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1558686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef Str = getString(); 1559b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1560223f0ff6a9a5d0eaf63b98b3aa92888b4c088868Jordan Rose if (!isASCII(Str[i]) || !Str[i]) 156133fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 156233fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 156333fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1564ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1565726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1566726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1567726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 15681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1569726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1570726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1571726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1572726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 15731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1574673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1575673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1576673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 1577ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 157808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 157908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 158008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 158108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 158208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 158308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 158408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 158508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 158608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 158708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1588673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1589b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1590b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1591b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 15925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 159365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return TokLocs[0]; } 159465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 159565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return TokLocs[NumConcatenated - 1]; 15965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 159765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 15981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 16005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 160277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 160363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 16045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 16075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 16085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 16095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 16105549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 16115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1613898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1614f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 1615bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->isTypeDependent(), val->isValueDependent(), 1616561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor val->isInstantiationDependent(), 1617bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->containsUnexpandedParameterPack()), 1618898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 16191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1620c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 16211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1622c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1623c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 16245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 16255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1626c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1627c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 162865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return L; } 162965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return R; } 16305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1631313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1632313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1633c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1634313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1635313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1636313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1637c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1638313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 16391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 164377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 164463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 16455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16480518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 16490518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 16505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1651dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1652dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1653dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1654dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1655dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1656dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1657dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 16585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16605baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 16615baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 16630799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 16645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 16650799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 16661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 16675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1668f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1669f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1670f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1671de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 1672bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->isValueDependent(), 1673ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (input->isInstantiationDependent() || 1674561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType()), 1675bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->containsUnexpandedParameterPack()), 16760799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 16775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16780b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 16791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 16802de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 16810b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16820799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 16830b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 16840b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 16860b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 16870b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 16895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 16900b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 16910b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 16932085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 16942de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 16952085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 16965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1697cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 16982085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 16992de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 17002085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 17015a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 17020799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 17030799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 17043c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 17053c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementOp(Opcode Op) { 17063c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreInc || Op == UO_PostInc; 17073c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 17082de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 17093c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementOp(getOpcode()); 17103c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 17113c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 17123c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isDecrementOp(Opcode Op) { 17133c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreDec || Op == UO_PostDec; 17142de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 17153c3b7f90a863af43fa63043d396553ecf205351cJohn McCall bool isDecrementOp() const { 17163c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isDecrementOp(getOpcode()); 17173c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 17183c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 17193c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementDecrementOp(Opcode Op) { return Op <= UO_PreDec; } 17202de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 17213c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementDecrementOp(getOpcode()); 17222de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 17233c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 17242de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 17252de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 17262de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 17270799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 17281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 17305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 17310bea86307eb8c16339315a1e261fc490eb505c5bDavid Blaikie static StringRef getOpcodeStr(Opcode Op); 17325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1733bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1734bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1735bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1736bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1737bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1738bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1739bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1740bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 174165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 174265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return isPostfix() ? Val->getLocStart() : Loc; 174365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 174465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 174565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return isPostfix() ? Loc : Val->getLocEnd(); 17465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17474f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { return Loc; } 17481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 17515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 175377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 175463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 17555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 17588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 17598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 17608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 17618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1762ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// double d; 17638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 17648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 17658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 17668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 17678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 17688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1769ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 17708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 17728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 17738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 17748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 17758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 17768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 17778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1778cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 17798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1780cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 17818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1782cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1783cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1784cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1785cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1786cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 17878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 17888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 17908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1791ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 17938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1794ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 17968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1797ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - An unsigned index into the array of Expr*'s stored after this node 17988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 17998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 18008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 18018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1802ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - A CXXBaseSpecifier*, for references that look at a field in a 1803cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 18048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1805ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 18078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1808ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 18098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 18108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1811ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1813ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 18148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1815ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 18168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1817ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 18198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 18208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1821ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 18228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1823cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1824cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1825cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1826cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1827ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1829ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie Kind getKind() const { 18308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 18318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1832ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 18348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 18358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 18368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 18378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 18388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 18418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 18428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1843cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 18448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1845ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 18478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 18488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1849ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1850cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1851cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1852cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1853ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1854cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1855ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 18578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 18588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 18598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1860ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// contains the location of the period (if there is one) and the 18618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 1862aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { return Range; } 186365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return Range.getBegin(); } 186465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return Range.getEnd(); } 18658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 18668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1868ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 18708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 18718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 18728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 18738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 18748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 18758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1876ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 187705ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper OffsetOfExpr(const ASTContext &C, QualType type, 18788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 18793b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<OffsetOfNode> comps, ArrayRef<Expr*> exprs, 18808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 18818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 18838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 18846bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TSInfo(nullptr), NumComps(numComps), NumExprs(numExprs) {} 18858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1887ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 188805ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static OffsetOfExpr *Create(const ASTContext &C, QualType type, 1889ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie SourceLocation OperatorLoc, TypeSourceInfo *tsi, 18903b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<OffsetOfNode> comps, 18913b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> exprs, SourceLocation RParenLoc); 18928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 189305ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static OffsetOfExpr *CreateEmpty(const ASTContext &C, 18948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 18958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 18978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 18988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 18998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 19008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 19018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 19028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1903ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 19048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 19058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 19068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 19078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 19088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 19098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1910ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 19118cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const OffsetOfNode &getComponent(unsigned Idx) const { 19128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 19138cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return reinterpret_cast<const OffsetOfNode *> (this + 1)[Idx]; 19148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 19158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 19168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 19178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 19188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 19198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1920ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 19218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 19228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 19238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 19248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 19258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 19268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 19278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 19288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 19298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 19308cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getIndexExpr(unsigned Idx) const { 19318cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<OffsetOfExpr*>(this)->getIndexExpr(Idx); 19328cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 19338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 19348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 19358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 19368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 19378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 19388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1939ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 19408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 19418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 19428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 19438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 194465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return OperatorLoc; } 194565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 19468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 19478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 19488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 19498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 19508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 19518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 195263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 195363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = 195463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall reinterpret_cast<Stmt**>(reinterpret_cast<OffsetOfNode*>(this + 1) 195563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall + NumComps); 195663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumExprs); 195763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 19588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 19598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1960f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated) 1961f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// expression operand. Used for sizeof/alignof (C99 6.5.3.4) and 1962f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// vec_step (OpenCL 1.1 6.11.12). 1963f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourneclass UnaryExprOrTypeTraitExpr : public Expr { 1964d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1965a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1966d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1967d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 19685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 196942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 19705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1971f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, TypeSourceInfo *TInfo, 1972f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1973f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1974f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1975ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 19762850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1977bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->isDependentType(), 1978561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor TInfo->getType()->isInstantiationDependentType(), 1979bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->containsUnexpandedParameterPack()), 1980bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer OpLoc(op), RParenLoc(rp) { 1981bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.Kind = ExprKind; 1982bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = true; 1983a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1984ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1985ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 1986f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, Expr *E, 1987f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1988f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1989f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1990ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1991ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1992bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->isTypeDependent(), 1993561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor E->isInstantiationDependent(), 1994bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->containsUnexpandedParameterPack()), 1995bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer OpLoc(op), RParenLoc(rp) { 1996bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.Kind = ExprKind; 1997bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = false; 1998ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1999d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 20000518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 20010b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 2002f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne explicit UnaryExprOrTypeTraitExpr(EmptyShell Empty) 2003f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne : Expr(UnaryExprOrTypeTraitExprClass, Empty) { } 20040b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 2005f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTrait getKind() const { 2006bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer return static_cast<UnaryExprOrTypeTrait>(UnaryExprOrTypeTraitExprBits.Kind); 2007f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne } 2008bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setKind(UnaryExprOrTypeTrait K) { UnaryExprOrTypeTraitExprBits.Kind = K;} 20090b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 2010bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer bool isArgumentType() const { return UnaryExprOrTypeTraitExprBits.IsType; } 20110518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 20125ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 20135ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 2014a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 20150518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 20165ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 20170518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 2018caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 20190518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 2020d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 20210518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 2022caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 2023f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return const_cast<UnaryExprOrTypeTraitExpr*>(this)->getArgumentExpr(); 2024caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 20250b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 2026bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setArgument(Expr *E) { 2027bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer Argument.Ex = E; 2028bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = false; 2029bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 2030a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 2031a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 2032bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = true; 20330b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 20340b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 20350518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 20360518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 20370518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 20380518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 20390518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 20400518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 204176e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 20420b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 20430b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 20440b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 20450b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2046866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 204765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return OpLoc; } 204865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 20495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 2051f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return T->getStmtClass() == UnaryExprOrTypeTraitExprClass; 20525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 205477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 205563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children(); 20565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 20575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 20595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 20605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 20615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 20635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 206477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 20651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 20665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 20675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 20682324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 2069f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 207073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 2071f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 20722850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 2073bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2074561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2075561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2076bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2077bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 20782850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 207973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 208073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 208173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 20821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2083cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 2084cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 2085cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 2086cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 20872324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 20882324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 20892324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 20902324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 20912324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 209233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 209333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 209433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 209533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 20965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 20975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2098cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 2099cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 21005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 21015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2102cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 21031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 21055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 210677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 21071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 21095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 21102324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 21111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 21135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 21142324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 21151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 211677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 21175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 21181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 21191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 212065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 212165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getLHS()->getLocStart(); 21225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 212365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RBracketLoc; } 21241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2125026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 2126cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 2127cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 212865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getExprLoc() const LLVM_READONLY { 212965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getBase()->getExprLoc(); 213065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 21315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 21345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 213677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 213763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 213863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 213963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 21405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 21415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2143b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 21441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 2145b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 21461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 2147b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 2148b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 21495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 2150cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne enum { FN=0, PREARGS_START=1 }; 21515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 21525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 21535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 21541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2155b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 2156cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne // These versions of the constructor are for derived classes. 215705ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper CallExpr(const ASTContext& C, StmtClass SC, Expr *fn, unsigned NumPreArgs, 21583b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> args, QualType t, ExprValueKind VK, 2159cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SourceLocation rparenloc); 216005ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper CallExpr(const ASTContext &C, StmtClass SC, unsigned NumPreArgs, 216105ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper EmptyShell Empty); 2162cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 2163cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Stmt *getPreArg(unsigned i) { 2164cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2165cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 2166cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2167cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const Stmt *getPreArg(unsigned i) const { 2168cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2169cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 2170cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2171cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne void setPreArg(unsigned i, Stmt *PreArg) { 2172cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2173cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[PREARGS_START+i] = PreArg; 2174cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2175cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 2176cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne unsigned getNumPreArgs() const { return CallExprBits.NumPreArgs; } 217742602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 21785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 217905ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper CallExpr(const ASTContext& C, Expr *fn, ArrayRef<Expr*> args, QualType t, 2180f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 21811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21821f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 218305ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper CallExpr(const ASTContext &C, StmtClass SC, EmptyShell Empty); 21841f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 21855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 21865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 218718b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 2188a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 2189d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 2190d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 2191d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 2192d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 2193d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 2194a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 2195a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 2196bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 2197bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 2198bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 2199a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 22005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 22015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 22025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 22031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2204aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the call arguments. 2205cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **getArgs() { 2206cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return reinterpret_cast<Expr **>(SubExprs+getNumPreArgs()+PREARGS_START); 2207cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2208d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith const Expr *const *getArgs() const { 2209d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith return const_cast<CallExpr*>(this)->getArgs(); 2210d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith } 2211ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 22125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 22135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 22145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2215cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 22165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 22185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2219cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 22205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2222934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 2223934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 2224934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 2225cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[Arg+getNumPreArgs()+PREARGS_START] = ArgExpr; 2226934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 22271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2228d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 2229d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 2230d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 223105ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper void setNumArgs(const ASTContext& C, unsigned NumArgs); 22321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22335549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 22345549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 22356bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines typedef llvm::iterator_range<arg_iterator> arg_range; 22366bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines typedef llvm::iterator_range<const_arg_iterator> arg_const_range; 22376bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 22386bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines arg_range arguments() { return arg_range(arg_begin(), arg_end()); } 22396bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines arg_const_range arguments() const { 22406bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return arg_const_range(arg_begin(), arg_end()); 22416bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines } 22421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2243cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_begin() { return SubExprs+PREARGS_START+getNumPreArgs(); } 2244cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_end() { 2245cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2246cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2247cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_begin() const { 2248cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs(); 2249cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2250cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_end() const { 2251cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2252cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 22531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22545846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek /// This method provides fast access to all the subexpressions of 22555846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek /// a CallExpr without going through the slower virtual child_iterator 22565846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek /// interface. This provides efficient reverse iteration of the 22575846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek /// subexpressions. This is currently used for CFG construction. 22585846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek ArrayRef<Stmt*> getRawSubExprs() { 22595846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek return ArrayRef<Stmt*>(SubExprs, 22605846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek getNumPreArgs() + PREARGS_START + getNumArgs()); 22615846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek } 22625846720f08a6b225484bfe663599c2b057a99bc8Ted Kremenek 22635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 22645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 22655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 22665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2267651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// getBuiltinCallee - If this is a call to a builtin, return the builtin ID 2268651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// of the callee. If not, return 0. 2269651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned getBuiltinCallee() const; 22701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2271ba57183965f117279342903edec19766e478c9a8Richard Smith /// \brief Returns \c true if this is a call to a builtin which does not 2272ba57183965f117279342903edec19766e478c9a8Richard Smith /// evaluate side-effects within its arguments. 2273ba57183965f117279342903edec19766e478c9a8Richard Smith bool isUnevaluatedBuiltinCall(ASTContext &Ctx) const; 2274ba57183965f117279342903edec19766e478c9a8Richard Smith 22751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 22761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 22776dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 22786dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 22791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2280d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 22811f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2282866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 2283aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY; 2284aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY; 22851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22874bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 22884bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 22895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 229088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 229177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 229263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 229363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], 229463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall &SubExprs[0]+NumArgs+getNumPreArgs()+PREARGS_START); 229563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 22965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 22975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2298ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 22995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 23005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 23016bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 23026857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth struct MemberNameQualifier { 23036857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The nested-name-specifier that qualifies the name, including 23046857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// source-location information. 23056857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc QualifierLoc; 23066857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth 23076857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The DeclAccessPair through which the MemberDecl was found due to 23086857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// name qualifiers. 2309161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 23106bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 23116bb8017bb9e828d118e15e59d71c66bba323c364John McCall 2312ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 2313ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 23145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 23151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2316ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 2317ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 2318f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 23191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23202577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 23212577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 23222577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 23232577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 2324bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer /// MemberLoc - This is the location of the member name. 2325bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer SourceLocation MemberLoc; 2326bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer 2327ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 232883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 23291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 233083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 23316bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 23326bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 2333c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 23346bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 23351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2336e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief True if this member expression specified a template keyword 2337e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// and/or a template argument list explicitly, e.g., x->f<int>, 2338e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// x->template f, x->template f<int>. 2339e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// When true, an ASTTemplateKWAndArgsInfo structure and its 2340e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// TemplateArguments (if any) are allocated immediately after 2341e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// the MemberExpr or, if the member expression also has a qualifier, 2342e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// after the MemberNameQualifier structure. 2343e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool HasTemplateKWAndArgsInfo : 1; 23441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23457cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief True if this member expression refers to a method that 23467cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 23477cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool HadMultipleCandidates : 1; 23487cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 234983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 23506bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 23516bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 23526bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 235383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 235483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 235583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 23566bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 2357c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 2358c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2361f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2362f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 2363f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2364f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2365ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie base->isTypeDependent(), 2366561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isValueDependent(), 2367561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2368bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 2369bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer Base(base), MemberDecl(memberdecl), MemberDNLoc(NameInfo.getInfo()), 2370bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer MemberLoc(NameInfo.getLoc()), IsArrow(isarrow), 2371e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara HasQualifierOrFoundDecl(false), HasTemplateKWAndArgsInfo(false), 23727cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) { 23732577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 23742577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 23752577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 23762577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 23772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 23782577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 2379e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // for constructors, destructors and conversion operators). 23802577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2381f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 2382f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2383f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2384bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 2385561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2386bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 2387bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer Base(base), MemberDecl(memberdecl), MemberDNLoc(), MemberLoc(l), 23882577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 2389e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara HasQualifierOrFoundDecl(false), HasTemplateKWAndArgsInfo(false), 23907cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) {} 2391510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 239205ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static MemberExpr *Create(const ASTContext &C, Expr *base, bool isarrow, 239340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 2394e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 2395161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 23962577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 2397d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 2398f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 23991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 240088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 24015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 240257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 240357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 240457e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 240557e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 240657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 2407f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 2408f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 24091f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 24106bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 2411161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 24126bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 2413161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 2414161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 24156bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 24166bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 24176bb8017bb9e828d118e15e59d71c66bba323c364John McCall 24181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 24190979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 24200979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 24216bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool hasQualifier() const { return getQualifier() != nullptr; } 24221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 242483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 242583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 24261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 24276bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 24286bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 24291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 243040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc.getNestedNameSpecifier(); 243140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 243240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 2433ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// \brief If the member name was qualified, retrieves the 243440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// nested-name-specifier that precedes the member name, with source-location 243540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// information. 243640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 243740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 243840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 2439ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 244040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc; 244183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 2442c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 2443e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 2444e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() { 2445e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) 24466bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 2447e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2448e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasQualifierOrFoundDecl) 2449e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>(this + 1); 2450e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2451e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 2452e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara getMemberQualifier() + 1); 2453e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2454e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2455e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 2456e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() const { 2457e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return const_cast<MemberExpr*>(this)->getTemplateKWAndArgsInfo(); 2458e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2459e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2460e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the template keyword preceding 2461e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// the member name, if any. 2462e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getTemplateKeywordLoc() const { 2463e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2464e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->getTemplateKeywordLoc(); 2465e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2466e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2467e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the left angle bracket starting the 2468e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the member name, if any. 2469e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getLAngleLoc() const { 2470e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2471e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->LAngleLoc; 2472e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2473e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2474e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the right angle bracket ending the 2475e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the member name, if any. 2476e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getRAngleLoc() const { 2477e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2478e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->RAngleLoc; 2479c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 24801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2481e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// Determines whether the member name was preceded by the template keyword. 2482e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); } 2483e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2484e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether the member name was followed by an 2485e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list. 2486e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); } 2487e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2488d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 2489d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 2490d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 2491096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 2492096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 2493096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2494096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2495096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2496096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 2497096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 2498b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 2499e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara assert(hasExplicitTemplateArgs()); 2500e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return *getTemplateKWAndArgsInfo(); 2501096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2502096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2503096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2504096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 2505096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 2506b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 2507096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 2508096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2509096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2510096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 2511096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 2512096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 2513b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo *getOptionalExplicitTemplateArgs() const { 25146bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (!hasExplicitTemplateArgs()) return nullptr; 2515096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 2516d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 2517ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 2518c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 2519c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 2520833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 2521e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasExplicitTemplateArgs()) 25226bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 25231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2524096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 2525c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 25261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2527c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 2528c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 25291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 2530e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasExplicitTemplateArgs()) 25311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 25321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2533096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 2534c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 25351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25362577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 25372577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 25382577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 25392577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 25402577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 25412577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 25425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 25431f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 25441f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 2545ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 2546ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 2547026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 25481f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 25495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2550aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY; 2551aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY; 2552ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 25534f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { return MemberLoc; } 25545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 255575e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Determine whether the base of this explicit is implicit. 255675e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitAccess() const { 255775e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor return getBase() && getBase()->isImplicitCXXThis(); 255875e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor } 25597cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 25607cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this member expression refers to a method that 25617cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 25627cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 25637cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return HadMultipleCandidates; 25647cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 25657cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 25667cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a method that was resolved from an overloaded set having size 25677cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 25687cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 25697cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates = V; 25707cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 25717cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 25721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 257383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 25745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25761237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 257763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 25784045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 25794045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 25804045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 25815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 2584aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 2585aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 25860fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 25870fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 25880fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 25890fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 25901d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 25911d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 25921d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 25933654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer /// The int part of the pair stores whether this expr is file scope. 25943654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer llvm::PointerIntPair<TypeSourceInfo *, 1, bool> TInfoAndScope; 25955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 2596aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 259742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 2598f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 2599f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 2600ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie tinfo->getType()->isDependentType(), 2601bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->isValueDependent(), 2602561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (init->isInstantiationDependent() || 2603561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor tinfo->getType()->isInstantiationDependentType()), 2604bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->containsUnexpandedParameterPack()), 26053654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer LParenLoc(lparenloc), TInfoAndScope(tinfo, fileScope), Init(init) {} 26061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2607ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 2608ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 2609ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 2610ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 26115549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 26125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 2613ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 2614e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 26153654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer bool isFileScope() const { return TInfoAndScope.getInt(); } 26163654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer void setFileScope(bool FS) { TInfoAndScope.setInt(FS); } 2617ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 26180fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 2619ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2620ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 26213654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer TypeSourceInfo *getTypeSourceInfo() const { 26223654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer return TInfoAndScope.getPointer(); 26233654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer } 26243654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer void setTypeSourceInfo(TypeSourceInfo *tinfo) { 26253654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer TInfoAndScope.setPointer(tinfo); 26263654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer } 262742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 262865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 26290fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 26300fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 263165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return SourceLocation(); 26320fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 263365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return Init->getLocStart(); 263465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return LParenLoc; 263565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 263665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 263765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen // FIXME: Init should never be null. 263865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen if (!Init) 263965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return SourceLocation(); 264065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return Init->getLocEnd(); 264173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2642aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 26431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2645aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 26461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26471237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 264863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Init, &Init+1); } 2649aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2650aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 265149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 265249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 265349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 265449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 26550835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2656cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 26575baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 26581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2659cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 26600835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2661409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2662651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool CastConsistency() const; 2663409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2664f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2665f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2666f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2667f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2668f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2669654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis void setBasePathSize(unsigned basePathSize) { 2670654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis CastExprBits.BasePathSize = basePathSize; 2671654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis assert(CastExprBits.BasePathSize == basePathSize && 2672654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis "basePathSize doesn't fit in bits of CastExprBits.BasePathSize!"); 2673654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis } 2674654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis 26750835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2676f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2677f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2678f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2679898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2680898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2681898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2682898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2683898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 2684bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType() || (op && op->isValueDependent()), 2685ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (ty->isInstantiationDependentType() || 2686561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (op && op->isInstantiationDependent())), 2687bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (ty->containsUnexpandedParameterPack() || 2688a2338bc4c2887937478d302901fb41a53e14e6d6Anna Zaks (op && op->containsUnexpandedParameterPack()))), 26898e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2690daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 26918e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 2692654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 2693651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines assert(CastConsistency()); 2694f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 26951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2696087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2697f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 26988e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 2699654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 27008e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 27011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27020835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 27038e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 27048e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2705f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2706f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 27070835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 27080835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2709087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2710087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 27116eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 27126eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 27136eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 27146eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 27156eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 27166eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 27176eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 271841b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2719f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2720f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 27218e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 27228e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2723f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2724f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2725f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2726f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2727f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2728f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 272941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 27301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27314bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 27324bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 27330835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 27341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27350835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 273663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Op, &Op+1); } 27370835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 27380835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 273949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 274049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 274149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 274249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 274349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2744bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2745bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2746906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2747bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2748bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2749bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2750bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2751906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 27521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2753906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2754906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2755906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2756906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2757bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2758bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 27590835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2760906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2761f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 27625baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2763f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 27645baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 276590045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2766087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2767f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2768f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2769f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2770f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2771f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2772f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 27735baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2774f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 27755baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2776f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 277705ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static ImplicitCastExpr *Create(const ASTContext &Context, QualType T, 2778f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2779f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 27805baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2781f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 278205ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static ImplicitCastExpr *CreateEmpty(const ASTContext &Context, 278305ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper unsigned PathSize); 2784087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 2785aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY { 2786396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar return getSubExpr()->getLocStart(); 2787396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar } 2788aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY { 2789396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar return getSubExpr()->getLocEnd(); 2790396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar } 279190045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 27921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 279449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 279549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 279649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 279791a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCallinline Expr *Expr::IgnoreImpCasts() { 279891a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall Expr *e = this; 279991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall while (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e)) 280091a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall e = ice->getSubExpr(); 280191a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return e; 280291a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall} 280391a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 280449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 28051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 280649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 280749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 280849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 280949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 281049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 281149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 28125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 281349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 281449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 281549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 281649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 281749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2818906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2819906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 28200835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 28219d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 28229d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 28239d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 282449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 282549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2826f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2827f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2828f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2829f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 283049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2831db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2832f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2833f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2834db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 283549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 28369d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 28379d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 28389d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 28399d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 28409d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 284149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 284249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 28439d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 284449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 28451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 28464bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 28474bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 284849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 284949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 285049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 28516eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 285249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 285349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 28546eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2855b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2856b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2857f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2858f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2859f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 286041b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2861f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 286241b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 286349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2864db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2865f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2866f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2867f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2868f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 286905ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static CStyleCastExpr *Create(const ASTContext &Context, QualType T, 2870f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2871f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2872f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2873f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2874f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 287505ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static CStyleCastExpr *CreateEmpty(const ASTContext &Context, 287605ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper unsigned PathSize); 2877db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2878b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2879db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2880db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2881b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2882db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2883db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 288465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return LPLoc; } 288565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 288665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getSubExpr()->getLocEnd(); 28875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 288865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 28891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 28901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 28915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 28935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28943fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 28953fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 28963fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 28973fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 28983fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 28993fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 29003fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 29013fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 29023fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 29033fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 29043fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 29053fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 29063fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 29073fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 29083fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 29093fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 29103fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 29113fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 29125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 29135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 29145baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 29155baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 291617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 29170799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 2918be9af1288881110e406b87914162eaa59f1e5918Lang Hames 2919be9af1288881110e406b87914162eaa59f1e5918Lang Hames // Records the FP_CONTRACT pragma status at the point that this binary 2920be9af1288881110e406b87914162eaa59f1e5918Lang Hames // operator was parsed. This bit is only meaningful for operations on 2921be9af1288881110e406b87914162eaa59f1e5918Lang Hames // floating point types. For all other types it should default to 2922be9af1288881110e406b87914162eaa59f1e5918Lang Hames // false. 2923be9af1288881110e406b87914162eaa59f1e5918Lang Hames unsigned FPContractable : 1; 29240799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 29250799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 292617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 29275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 29281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 29291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 293017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2931f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2932be9af1288881110e406b87914162eaa59f1e5918Lang Hames SourceLocation opLoc, bool fpContractable) 2933f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2934898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 2935bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2936561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2937561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2938bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2939bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 2940be9af1288881110e406b87914162eaa59f1e5918Lang Hames Opc(opc), FPContractable(fpContractable), OpLoc(opLoc) { 29411237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 29421237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 29431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 294458b65d953e67251bfce28a5251bb3b496490f343Stefanus Du Toit "Use CompoundAssignOperator for compound assignments"); 29455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2947db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 29481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 29492de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2950db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 29514f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { return OpLoc; } 295217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2953db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2954db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 29550799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2956db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2957db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 29585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2959db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 29605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2961db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2962db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 296365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 296465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getLHS()->getLocStart(); 296565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 296665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 296765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getRHS()->getLocEnd(); 29685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 29715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 29720bea86307eb8c16339315a1e261fc490eb505c5bDavid Blaikie static StringRef getOpcodeStr(Opcode Op); 29735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 29740bea86307eb8c16339315a1e261fc490eb505c5bDavid Blaikie StringRef getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2975a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2976063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2977063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2978063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2979063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2980063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2981063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2982063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2983063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 29845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2985200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 29862de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 29872de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 29880799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 29892de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 29900799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2991aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 29922de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 29930799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2994f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 29952de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 29960799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2997f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 29982de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 29990799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 30001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30012de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 30020799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 3003aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 30048569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose static Opcode negateComparisonOp(Opcode Opc) { 30058569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose switch (Opc) { 30068569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose default: 30078569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose llvm_unreachable("Not a comparsion operator."); 30088569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_LT: return BO_GE; 30098569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_GT: return BO_LE; 30108569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_LE: return BO_GT; 30118569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_GE: return BO_LT; 30128569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_EQ: return BO_NE; 30138569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_NE: return BO_EQ; 30148569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose } 30158569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose } 30168569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose 30178569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose static Opcode reverseComparisonOp(Opcode Opc) { 30188569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose switch (Opc) { 30198569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose default: 30208569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose llvm_unreachable("Not a comparsion operator."); 30218569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_LT: return BO_GT; 30228569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_GT: return BO_LT; 30238569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_LE: return BO_GE; 30248569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_GE: return BO_LE; 30258569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_EQ: 30268569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose case BO_NE: 30278569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose return Opc; 30288569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose } 30298569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose } 30308569281fb7ce9b5ca164a0528b876acbb45eb989Jordan Rose 30312de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 30320799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 3033f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 30340e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isAssignmentOp(Opcode Opc) { 30350e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return Opc >= BO_Assign && Opc <= BO_OrAssign; 30360e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 30370e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); } 30380e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 30390e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isCompoundAssignmentOp(Opcode Opc) { 30402de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 30412de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 30420e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isCompoundAssignmentOp() const { 30430e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isCompoundAssignmentOp(getOpcode()); 30440e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 30454b9c2d235fb9449e249d74f48ecfec601650de93John McCall static Opcode getOpForCompoundAssignment(Opcode Opc) { 30464b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(isCompoundAssignmentOp(Opc)); 3047b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall if (Opc >= BO_AndAssign) 3048b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall return Opcode(unsigned(Opc) - BO_AndAssign + BO_And); 30494b9c2d235fb9449e249d74f48ecfec601650de93John McCall else 30504b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Opcode(unsigned(Opc) - BO_MulAssign + BO_Mul); 30514b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 30520e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 30530e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isShiftAssignOp(Opcode Opc) { 30542de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 30552de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 30560e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isShiftAssignOp() const { 30570e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isShiftAssignOp(getOpcode()); 30580e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 30591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 30614bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 30624bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 30635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 30641237c673c07f9d827129ba02720108816abde562Ted Kremenek 30651237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 306663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 306763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 306863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 30691237c673c07f9d827129ba02720108816abde562Ted Kremenek 3070be9af1288881110e406b87914162eaa59f1e5918Lang Hames // Set the FP contractability status of this operator. Only meaningful for 3071be9af1288881110e406b87914162eaa59f1e5918Lang Hames // operations on floating point types. 3072be9af1288881110e406b87914162eaa59f1e5918Lang Hames void setFPContractable(bool FPC) { FPContractable = FPC; } 3073be9af1288881110e406b87914162eaa59f1e5918Lang Hames 3074be9af1288881110e406b87914162eaa59f1e5918Lang Hames // Get the FP contractability status of this operator. Only meaningful for 3075be9af1288881110e406b87914162eaa59f1e5918Lang Hames // operations on floating point types. 3076be9af1288881110e406b87914162eaa59f1e5918Lang Hames bool isFPContractable() const { return FPContractable; } 3077be9af1288881110e406b87914162eaa59f1e5918Lang Hames 30785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 307917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 3080f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 3081be9af1288881110e406b87914162eaa59f1e5918Lang Hames SourceLocation opLoc, bool fpContractable, bool dead2) 3082f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 30832333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 3084bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 3085561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 3086561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 3087bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 3088bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 3089be9af1288881110e406b87914162eaa59f1e5918Lang Hames Opc(opc), FPContractable(fpContractable), OpLoc(opLoc) { 30901237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 30911237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 30925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3093ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 30941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 30952de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 30965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 30975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 30985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 30995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 3100ec5bc81fd55bfcc26fc4bde6d5e33113d94c2209Zhongxing Xu/// these operators, the operands are promoted, the arithmetic performed, an 31015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 31025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 31035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 31045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 3105ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 3106ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 31075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3108f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 3109f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 3110f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 3111be9af1288881110e406b87914162eaa59f1e5918Lang Hames SourceLocation OpLoc, bool fpContractable) 3112be9af1288881110e406b87914162eaa59f1e5918Lang Hames : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, fpContractable, 3113be9af1288881110e406b87914162eaa59f1e5918Lang Hames true), 3114ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 3115ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 31161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 31175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 31185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 31195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3120ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 3121ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 3122ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 3123ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 3124ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 3125ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 3126ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 3127ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 3128ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 3129ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 3130ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 3131ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 3132ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 31331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 31341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 31355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 31365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 31375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 313856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// AbstractConditionalOperator - An abstract base class for 313956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator and BinaryConditionalOperator. 314056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass AbstractConditionalOperator : public Expr { 314156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation QuestionLoc, ColonLoc; 314256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 314356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 314456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallprotected: 314556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, QualType T, 314656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprValueKind VK, ExprObjectKind OK, 3147561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor bool TD, bool VD, bool ID, 314856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool ContainsUnexpandedParameterPack, 314956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, 315056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation cloc) 3151561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(SC, T, VK, OK, TD, VD, ID, ContainsUnexpandedParameterPack), 315256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QuestionLoc(qloc), ColonLoc(cloc) {} 315356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 315456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, EmptyShell Empty) 315556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, Empty) { } 315656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 315756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 315856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getCond - Return the expression representing the condition for 315956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 316056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const; 316156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 316256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 316356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 316456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const; 316556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 316656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 316756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 316856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 316956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const; 317056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 317156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getQuestionLoc() const { return QuestionLoc; } 317256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getColonLoc() const { return ColonLoc; } 317356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 317456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 317556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == ConditionalOperatorClass || 317656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->getStmtClass() == BinaryConditionalOperatorClass; 317756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 317856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 317956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 318056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator - The ?: ternary operator. The GNU "missing 318156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// middle" extension is a BinaryConditionalOperator. 318256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass ConditionalOperator : public AbstractConditionalOperator { 31831237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 31845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 318556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 318656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 31875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 318847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 318956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation CLoc, Expr *rhs, 31900943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 319156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, t, VK, OK, 3192898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 3193898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 3194898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 319556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (lhs->isTypeDependent() || rhs->isTypeDependent()), 319656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (cond->isValueDependent() || lhs->isValueDependent() || 319756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->isValueDependent()), 3198561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 3199561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 3200561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 3201bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 320256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall lhs->containsUnexpandedParameterPack() || 320356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 320456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QLoc, CLoc) { 32051237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 32061237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 32071237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 32081237c673c07f9d827129ba02720108816abde562Ted Kremenek } 32095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3210ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 3211ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 321256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, Empty) { } 3213ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 3214395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 321556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 32165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 3217395a2abf0028968d85958610e393e067885dc14fTed Kremenek 321856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 321956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 322056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { return cast<Expr>(SubExprs[LHS]); } 32211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 322256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 322356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 322456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 32255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 3226ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 322756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 32285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 322947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 323065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 323165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getCond()->getLocStart(); 323265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 323365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 323465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getRHS()->getLocEnd(); 32355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 323665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 32371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 32381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 32395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 32401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32411237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 324263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 324363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 324463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 32455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 32465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 324756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// BinaryConditionalOperator - The GNU extension to the conditional 324856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operator which allows the middle operand to be omitted. 324956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// 325056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// This is a different expression kind on the assumption that almost 325156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// every client ends up needing to know that these are different. 325256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass BinaryConditionalOperator : public AbstractConditionalOperator { 325356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall enum { COMMON, COND, LHS, RHS, NUM_SUBEXPRS }; 325456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 325556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the common condition/left-hand-side expression, which will be 325656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated as the opaque value 325756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the condition, expressed in terms of the opaque value 325856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the left-hand-side, expressed in terms of the opaque value 325956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the right-hand-side 326056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Stmt *SubExprs[NUM_SUBEXPRS]; 326156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *OpaqueValue; 326256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 326356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 326456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 326556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall BinaryConditionalOperator(Expr *common, OpaqueValueExpr *opaqueValue, 326656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *cond, Expr *lhs, Expr *rhs, 326756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, SourceLocation cloc, 326856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 326956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, t, VK, OK, 327056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isTypeDependent() || rhs->isTypeDependent()), 327156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isValueDependent() || rhs->isValueDependent()), 3272561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (common->isInstantiationDependent() || 3273561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 327456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->containsUnexpandedParameterPack() || 327556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 327656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall qloc, cloc), 327756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue(opaqueValue) { 327856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COMMON] = common; 327956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COND] = cond; 328056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[LHS] = lhs; 328156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[RHS] = rhs; 328297df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor assert(OpaqueValue->getSourceExpr() == common && "Wrong opaque value"); 328356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 328456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 328556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Build an empty conditional operator. 328656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit BinaryConditionalOperator(EmptyShell Empty) 328756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, Empty) { } 328856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 328956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCommon - Return the common expression, written to the 329056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// left of the condition. The opaque value will be bound to the 329156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// result of this expression. 329256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCommon() const { return cast<Expr>(SubExprs[COMMON]); } 329356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 329456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getOpaqueValue - Return the opaque value placeholder. 329556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *getOpaqueValue() const { return OpaqueValue; } 329656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 329756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCond - Return the condition expression; this is defined 329856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 329956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 330056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 330156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getTrueExpr - Return the subexpression which will be 330256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condition evaluates to true; this is defined 330356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 330456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { 330556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[LHS]); 330656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 330756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 330856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getFalseExpr - Return the subexpression which will be 330956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condnition evaluates to false; this is 331056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// defined in terms of the opaque value. 331156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const { 331256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[RHS]); 331356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 3314ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 331565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 331665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getCommon()->getLocStart(); 331765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 331865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 331965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getFalseExpr()->getLocEnd(); 332056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 332165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 332256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 332356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == BinaryConditionalOperatorClass; 332456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 332556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 332656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // Iterators 332756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { 332856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return child_range(SubExprs, SubExprs + NUM_SUBEXPRS); 332956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 333056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 333156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 333256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getCond() const { 333356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 333456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getCond(); 333556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getCond(); 333656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 333756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 333856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getTrueExpr() const { 333956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 334056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getTrueExpr(); 334156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getTrueExpr(); 334256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 334356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 334456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getFalseExpr() const { 334556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 334656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getFalseExpr(); 334756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getFalseExpr(); 334856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 334956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 33506481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 33516481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 33525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 3353ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *Label; 33545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3355ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelDecl *L, 33566481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 3357561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false, 3358561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 33592333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 33601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33617d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 33621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 33637d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 33647d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 33657d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 33667d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 33677d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 33687d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 33697d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 337065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return AmpAmpLoc; } 337165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return LabelLoc; } 33721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3373ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *getLabel() const { return Label; } 3374ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void setLabel(LabelDecl *L) { Label = L; } 33757d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 33765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 33771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 33785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 33791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33801237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 338163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 33825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3383ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3384ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 3385ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 3386ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 3387f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 3388f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 3389f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 3390ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 33915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 3392ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 3393ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 33942333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 3395561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // FIXME: Do we need to compute instantiation instantiation-dependence for 3396561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // statements? (ugh!) 3397d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 3398d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 3399f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 3400561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isDependentType(), false, false, false), 34012333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 34021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34036a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 34046a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 34056a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 34065549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 34075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 34086a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 34096a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 341065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return LParenLoc; } 341165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 34121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3413026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 34146a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 3415026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 34166a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 34171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3418ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 34191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 3420ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 34211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34221237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 342363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&SubStmt, &SubStmt+1); } 3424ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 3425ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3426d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 3427d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 3428d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 3429d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 3430d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 3431d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 3432d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 3433d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 3434d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 3435d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3436d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 3437d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 3438d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 3439d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 34405549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 3441d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 3442d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3443d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 344405ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper ShuffleVectorExpr(const ASTContext &C, ArrayRef<Expr*> args, QualType Type, 34453b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer SourceLocation BLoc, SourceLocation RP); 344694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 344794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 34481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 34496bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines : Expr(ShuffleVectorExprClass, Empty), SubExprs(nullptr) { } 345094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 345194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 345294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 34531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 345494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 345594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 345694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 345765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; } 345865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 345965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 3460d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 34611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 3462d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 34631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3464d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 3465d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 3466d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 3467d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 34681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3469aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the array of expressions. 3470aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 3471ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3472d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 3473d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 3474d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 34755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3476d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3477d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 3478d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 34795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3480d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 34811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 348205ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper void setExprs(const ASTContext &C, ArrayRef<Expr *> Exprs); 348394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 348405ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper llvm::APSInt getShuffleMaskIdx(const ASTContext &Ctx, unsigned N) const { 3485dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 34866f4f8083931a92f9959168d4430da7ddf9183100Craig Topper return getExpr(N+2)->EvaluateKnownConstInt(Ctx); 3487d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 34881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3489d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 349063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 349163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+NumExprs); 349263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3493d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 3494d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3495414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel/// ConvertVectorExpr - Clang builtin function __builtin_convertvector 3496414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel/// This AST node provides support for converting a vector type to another 3497414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel/// vector type of the same arity. 3498414a1bdbdaf250e0488589f12865c8961831b65dHal Finkelclass ConvertVectorExpr : public Expr { 3499414a1bdbdaf250e0488589f12865c8961831b65dHal Finkelprivate: 3500414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel Stmt *SrcExpr; 3501414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel TypeSourceInfo *TInfo; 3502414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel SourceLocation BuiltinLoc, RParenLoc; 3503414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel 3504414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel friend class ASTReader; 3505414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel friend class ASTStmtReader; 3506414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel explicit ConvertVectorExpr(EmptyShell Empty) : Expr(ConvertVectorExprClass, Empty) {} 3507414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel 3508414a1bdbdaf250e0488589f12865c8961831b65dHal Finkelpublic: 3509414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel ConvertVectorExpr(Expr* SrcExpr, TypeSourceInfo *TI, QualType DstType, 3510414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel ExprValueKind VK, ExprObjectKind OK, 3511414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel SourceLocation BuiltinLoc, SourceLocation RParenLoc) 3512414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel : Expr(ConvertVectorExprClass, DstType, VK, OK, 3513414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel DstType->isDependentType(), 3514414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel DstType->isDependentType() || SrcExpr->isValueDependent(), 3515414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel (DstType->isInstantiationDependentType() || 3516414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel SrcExpr->isInstantiationDependent()), 3517414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel (DstType->containsUnexpandedParameterPack() || 3518414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel SrcExpr->containsUnexpandedParameterPack())), 3519414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel SrcExpr(SrcExpr), TInfo(TI), BuiltinLoc(BuiltinLoc), RParenLoc(RParenLoc) {} 3520414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel 3521414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel /// getSrcExpr - Return the Expr to be converted. 3522414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel Expr *getSrcExpr() const { return cast<Expr>(SrcExpr); } 3523414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel 3524414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel /// getTypeSourceInfo - Return the destination type. 3525414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel TypeSourceInfo *getTypeSourceInfo() const { 3526414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel return TInfo; 3527414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel } 3528414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel void setTypeSourceInfo(TypeSourceInfo *ti) { 3529414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel TInfo = ti; 3530414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel } 3531414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel 3532414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel /// getBuiltinLoc - Return the location of the __builtin_convertvector token. 3533414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 3534414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel 3535414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel /// getRParenLoc - Return the location of final right parenthesis. 3536414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel SourceLocation getRParenLoc() const { return RParenLoc; } 3537414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel 3538414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; } 3539414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 3540414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel 3541414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel static bool classof(const Stmt *T) { 3542414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel return T->getStmtClass() == ConvertVectorExprClass; 3543414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel } 3544414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel 3545414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel // Iterators 3546414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel child_range children() { return child_range(&SrcExpr, &SrcExpr+1); } 3547414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel}; 3548414a1bdbdaf250e0488589f12865c8961831b65dHal Finkel 3549d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 35501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 3551d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 35527976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 35537976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 35547976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 35557976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 35567976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 35577976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 3558d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 35591237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 35605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 3561d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 3562a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman bool CondIsTrue; 3563d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 3564f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 3565f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 3566a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman SourceLocation RP, bool condIsTrue, 3567a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman bool TypeDependent, bool ValueDependent) 3568bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent, 3569561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 3570561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 3571561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 3572bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 3573bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->containsUnexpandedParameterPack() || 3574bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 3575a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman BuiltinLoc(BLoc), RParenLoc(RP), CondIsTrue(condIsTrue) { 35761237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 35771237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 35781237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 35791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 35807976932a1c256d447316ffac58e9821417725e34Eli Friedman 358144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 358244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 358344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 35847976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 35857976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 3586a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman bool isConditionTrue() const { 3587a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman assert(!isConditionDependent() && 3588a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman "Dependent condition isn't true or false"); 3589a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman return CondIsTrue; 3590a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman } 3591a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman void setIsConditionTrue(bool isTrue) { CondIsTrue = isTrue; } 3592a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman 3593a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman bool isConditionDependent() const { 3594a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman return getCond()->isTypeDependent() || getCond()->isValueDependent(); 3595a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman } 35967976932a1c256d447316ffac58e9821417725e34Eli Friedman 35977976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 35987976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 3599a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman Expr *getChosenSubExpr() const { 3600a5e660188a3c654cf0c88ed1093b28207e870b2bEli Friedman return isConditionTrue() ? getLHS() : getRHS(); 36017976932a1c256d447316ffac58e9821417725e34Eli Friedman } 36027976932a1c256d447316ffac58e9821417725e34Eli Friedman 36035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 360444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 36055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 360644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 36075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 360844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 360944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 361044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 361144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 36121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 361344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 361444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 36151237c673c07f9d827129ba02720108816abde562Ted Kremenek 361665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; } 361765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 361865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 3619d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 36201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 3621d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 36221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36231237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 362463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 362563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 362663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3627d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 3628d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 36292d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 36302d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 36312d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 36322d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 36332d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 36342d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 36352d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 36362d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 36372d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 36382d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 36392d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 36401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 3641561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false, 3642561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 3643f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 36442d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 364544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 364644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 364744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 36482d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 36492d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 365044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 36512d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 365265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return TokenLoc; } 365365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return TokenLoc; } 365465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 36552d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 36561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 36572d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 36581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36592d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 366063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 36612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 36622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 366374626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 36647c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 36655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 36662cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 36677c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 36687c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 36692cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 36702cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 3671f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 3672bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor t->isDependentType(), false, 3673561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (TInfo->getType()->isInstantiationDependentType() || 3674561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor e->isInstantiationDependent()), 3675bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (TInfo->getType()->containsUnexpandedParameterPack() || 3676bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor e->containsUnexpandedParameterPack())), 36772cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 36787c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 36797c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 36801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 368174626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 3682d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 3683d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 36845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 36855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 3686d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 3687d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 36882cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 36892cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 36902cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 3691d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 3692d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 36931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3694d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 3695d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 3696d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 369765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; } 369865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 369965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 37007c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 37017c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 37027c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 37031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37047c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 370563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 37067c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 37071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 37094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 37104c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 37114c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 37124c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 37134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 37144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 37154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 37164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 3717196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 37184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 37194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 37204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 37214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 37224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 37234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 37244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 37254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 3726196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 37274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 37284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 37294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 37304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 37314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 37324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 37334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 37343498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 37354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 37364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 37374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 3738196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 373923700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// After semantic analysis has completed, given an initializer list, 374023700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// method isSemanticForm() returns true if and only if this is the 374123700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// semantic form of the initializer list (note: the same AST node 374223700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// may at the same time be the syntactic form). 37434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 374423700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// the syntactic form of that initializer list (when different) 374523700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// using method getSyntacticForm(); the method returns null if applied 374623700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// to a initializer list which is already in syntactic form. 374723700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// Similarly, given the syntactic form (i.e., an initializer list such 374823700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// that isSemanticForm() returns false), one can retrieve the semantic 374923700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// form using method getSemanticForm(). 375023700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// Since many initializer lists have the same syntactic and semantic forms, 375123700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// getSyntacticForm() may return NULL, indicating that the current 375223700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara/// semantic initializer list also serves as its syntactic form. 375366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 3754ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 3755709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 3756709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 375766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 37581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 375923700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara /// The alternative form of the initializer list (if it exists). 3760063820655db8121f0022a7c51458463c7250324cBenjamin Kramer /// The int part of the pair stores whether this initializer list is 376123700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara /// in semantic form. If not null, the pointer points to: 376223700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara /// - the syntactic form, if this is in semantic form; 376323700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara /// - the semantic form, if this is in syntactic form. 376423700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara llvm::PointerIntPair<InitListExpr *, 1, bool> AltForm; 37654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 37664423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief Either: 37674423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes an array with more elements than 37684423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// there are initializers in the list, specifies an expression to be used 37694423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// for value initialization of the rest of the elements. 37704423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// Or 37714423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes a union, specifies which 37724423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// field within the union will be initialized. 37734423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis llvm::PointerUnion<Expr *, FieldDecl *> ArrayFillerOrUnionFieldInit; 37740bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 377566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 377605ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper InitListExpr(const ASTContext &C, SourceLocation lbraceloc, 37773b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> initExprs, SourceLocation rbraceloc); 3778d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3779d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 37802a82ca255b0f99f6201a75ed52b91fc024f6e9cfArgyrios Kyrtzidis explicit InitListExpr(EmptyShell Empty) 37812a82ca255b0f99f6201a75ed52b91fc024f6e9cfArgyrios Kyrtzidis : Expr(InitListExprClass, Empty) { } 37821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3783ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 37841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3785aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the set of initializers. 3786aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getInits() { return reinterpret_cast<Expr **>(InitExprs.data()); } 3787ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 378816c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 3789c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 37904c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 379166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 37921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 379316c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 3794c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 37954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 379666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 37971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 3799c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 38009e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 3801651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3802651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (expr) { 3803651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprBits.TypeDependent |= expr->isTypeDependent(); 3804651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprBits.ValueDependent |= expr->isValueDependent(); 3805651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprBits.InstantiationDependent |= expr->isInstantiationDependent(); 3806651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprBits.ContainsUnexpandedParameterPack |= 3807651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines expr->containsUnexpandedParameterPack(); 3808651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 38099e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 3810c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 3811fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 381205ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper void reserveInits(const ASTContext &C, unsigned NumInits); 38131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 38154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 38164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 38174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 38184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 38194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 382005ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper void resizeInits(const ASTContext &Context, unsigned NumInits); 38214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 38224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 38234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 38244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 38254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 38264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 38274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 3828fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// accommodate the new entry. 382905ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper Expr *updateInit(const ASTContext &C, unsigned Init, Expr *expr); 3830c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 38314423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief If this initializer list initializes an array with more elements 38324423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// than there are initializers in the list, specifies an expression to be 38334423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// used for value initialization of the rest of the elements. 38344423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis Expr *getArrayFiller() { 38354423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<Expr *>(); 38364423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 38378cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getArrayFiller() const { 38388cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getArrayFiller(); 38398cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 38403e8dc2ac8926dfbebd8f2f6b74ceba4befccd4d2Argyrios Kyrtzidis void setArrayFiller(Expr *filler); 38414423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 384221f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// \brief Return true if this is an array initializer and its array "filler" 384321f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// has been set. 384421f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis bool hasArrayFiller() const { return getArrayFiller(); } 384521f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis 38460bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 38470bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 38480bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 38490bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 38500bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 38510bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 38524423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis FieldDecl *getInitializedFieldInUnion() { 38534423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<FieldDecl *>(); 38544423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 38558cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const FieldDecl *getInitializedFieldInUnion() const { 38568cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getInitializedFieldInUnion(); 38578cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 38584423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis void setInitializedFieldInUnion(FieldDecl *FD) { 38596bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines assert((FD == nullptr 38606bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines || getInitializedFieldInUnion() == nullptr 38614e49952712ff9b1b1696cb07580b2b24a3ca99e1Matthew Curtis || getInitializedFieldInUnion() == FD) 38624e49952712ff9b1b1696cb07580b2b24a3ca99e1Matthew Curtis && "Only one field of a union may be initialized at a time!"); 38634423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis ArrayFillerOrUnionFieldInit = FD; 38644423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 38650bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3866c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3867c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3868b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3869b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3870b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 38711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3872fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith // Is this an initializer for an array of characters, initialized by a string 3873fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith // literal or an @encode? 3874fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith bool isStringLiteralInit() const; 3875fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith 3876d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3877d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3878d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 387987fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 388087fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 388123700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara bool isSemanticForm() const { return AltForm.getInt(); } 388223700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara InitListExpr *getSemanticForm() const { 38836bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return isSemanticForm() ? nullptr : AltForm.getPointer(); 388423700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara } 388523700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara InitListExpr *getSyntacticForm() const { 38866bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return isSemanticForm() ? AltForm.getPointer() : nullptr; 388723700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara } 388823700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara 388923700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara void setSyntacticForm(InitListExpr *Init) { 389023700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara AltForm.setPointer(Init); 389123700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara AltForm.setInt(true); 389223700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara Init->AltForm.setPointer(this); 389323700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara Init->AltForm.setInt(false); 389423700f083fb72f5c6792e253f203a43aba3cef86Abramo Bagnara } 38954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 389632cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl bool hadArrayRangeDesignator() const { 389732cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl return InitListExprBits.HadArrayRangeDesignator != 0; 389832cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl } 38991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 390032cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl InitListExprBits.HadArrayRangeDesignator = ARD; 390132cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl } 390232cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl 390365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY; 390465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY; 3905c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 390666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 39071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 390866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 39091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 391066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 391163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 3912ef8225444452a1486bd721f3285301fe84643b00Stephen Hines // FIXME: This does not include the array filler expression. 391363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall if (InitExprs.empty()) return child_range(); 391463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&InitExprs[0], &InitExprs[0] + InitExprs.size()); 391563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 39161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3917709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 39188111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3919709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 39208111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 39211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3922ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 39238111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3924ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 39258111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3926ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 39278111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3928ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 39298111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 39304423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 39314423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtReader; 39324423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtWriter; 393366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 393466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 393505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 393605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 393705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 393805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 393905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 394005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 394105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 39421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 394305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 394405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 394505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 394605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 394705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 394805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 394905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 395005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 395105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 395205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 395305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 3954063820655db8121f0022a7c51458463c7250324cBenjamin Kramer/// designator for @c .y. The initialization expression will be 1.0. 395505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3956ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3957ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3958ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3959ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3960ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 396105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 396205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 396305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 396405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3965eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 396605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3967eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 396805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 396905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 397005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 397105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 397205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 397305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 397405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 397505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 397605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3977a72c352e4950cb487942427550777378b68dc078Benjamin Kramer /// \brief The designators in this designated initialization 3978a72c352e4950cb487942427550777378b68dc078Benjamin Kramer /// expression. 3979a72c352e4950cb487942427550777378b68dc078Benjamin Kramer Designator *Designators; 3980a72c352e4950cb487942427550777378b68dc078Benjamin Kramer 3981ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 398205ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper DesignatedInitExpr(const ASTContext &C, QualType Ty, unsigned NumDesignators, 3983ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3984eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 39853b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> IndexExprs, Expr *Init); 398605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3987d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3988d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 39896bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NumDesignators(0), NumSubExprs(NumSubExprs), Designators(nullptr) { } 3990d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 399105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 399205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 399305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 399405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 399505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 399605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 399705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 399805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 399905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 400005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 40011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 400205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 400305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 40041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 400505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 400605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 400705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 400805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 400905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 401005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 401105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 401205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 401305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 401405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 401505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 401605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 401705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 401805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 401905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 40201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 402105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 402205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 402305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 402405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 402505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 402605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 402705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 402805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 402905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 403005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 403105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 403205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 403305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 403405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 403505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 403605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 403705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 403805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 403905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 404005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 404105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 404205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 404305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 404405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 404505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 4046ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 4047ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 404805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 40491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 40501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 405105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 405205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 405305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 405405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 405505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 405605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 405705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 40581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 405905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 406005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 406105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 406205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 406305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 406405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 406505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 406605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 406705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 40681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 406905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 407005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 407105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 407205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 407305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 407405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 407505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 407605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 407705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 407805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 407905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 408005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 4081b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth IdentifierInfo *getFieldName() const; 408205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 4083b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth FieldDecl *getField() const { 408405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 408505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 40866bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 408705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 408805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 408905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 409005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 409105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 409205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 409305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 409405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 409505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 409687f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 409787f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 409887f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 409987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 410087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 410105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 410205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 410305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 410405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 410505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 410605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 410705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 410805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 410905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 411005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 411105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 411205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 411305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 411405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 411505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 411605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 411705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 411805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 411905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 412005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 412105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 412205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 41234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 4124d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 4125d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 4126d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 4127d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 4128d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 4129d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 413065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 41314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 41324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 41334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 41344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 41354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 413665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 413724f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return Kind == FieldDesignator ? getFieldLoc() : getRBracketLoc(); 413824f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 4139aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 414065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return SourceRange(getLocStart(), getLocEnd()); 414124f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 414205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 414305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 414405ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static DesignatedInitExpr *Create(const ASTContext &C, 414505ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper Designator *Designators, 414605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 41473b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> IndexExprs, 414805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 4149eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 415005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 415105ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static DesignatedInitExpr *CreateEmpty(const ASTContext &C, 415205ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper unsigned NumIndexExprs); 4153d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 415405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 415505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 415605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 415705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 4158b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef Designator *designators_iterator; 4159ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 41601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 41611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 4162ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 416305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 4164b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef const Designator *const_designators_iterator; 4165b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_begin() const { return Designators; } 4166b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_end() const { 4167b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return Designators + NumDesignators; 4168b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 4169b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 4170cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 4171cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 4172cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 4173cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 4174cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 4175cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 4176cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 4177cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 4178cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 4179b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef std::reverse_iterator<const_designators_iterator> 4180b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator; 4181b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rbegin() const { 4182b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_end()); 4183b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 4184b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rend() const { 4185b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_begin()); 4186b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 4187b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 4188711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 4189711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 419005ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper void setDesignators(const ASTContext &C, const Designator *Desigs, 4191319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 4192d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 4193d615f88e3c24f91a65c25a4f7e66e0f97b18cc15Dmitri Gribenko Expr *getArrayIndex(const Designator &D) const; 4194d615f88e3c24f91a65c25a4f7e66e0f97b18cc15Dmitri Gribenko Expr *getArrayRangeStart(const Designator &D) const; 4195d615f88e3c24f91a65c25a4f7e66e0f97b18cc15Dmitri Gribenko Expr *getArrayRangeEnd(const Designator &D) const; 419605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 419705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 419805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 419905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 4200d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 420105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 420205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 4203eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 4204eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 4205d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 420605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 420705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 42081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 420905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 421005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 421105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 421205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 421305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 421405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 421505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 4216d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 4217d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 4218d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 4219d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 4220d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 4221d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 4222651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Expr *getSubExpr(unsigned Idx) const { 4223d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 4224651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return cast<Expr>(reinterpret_cast<Stmt *const *>(this + 1)[Idx]); 4225d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 4226d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 4227d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 4228d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 4229651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines reinterpret_cast<Stmt **>(this + 1)[Idx] = E; 4230d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 4231d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 4232ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 4233ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 423405ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper void ExpandDesignator(const ASTContext &C, unsigned Idx, 423505ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper const Designator *First, const Designator *Last); 4236ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 423724f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getDesignatorsSourceRange() const; 423824f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara 423965d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY; 424065d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY; 424105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 424205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 42431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 424405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 424505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 424605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 424763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 424863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = reinterpret_cast<Stmt**>(this + 1); 424963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumSubExprs); 425063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 42513498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 42523498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 42533498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 42543498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 42553498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 42561a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 42571a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 42583498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 42591a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 42601a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 42611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 42623498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 42631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 4264f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 4265561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false, ty->isInstantiationDependentType(), false) { } 42663498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 4267d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 4268d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 4269d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 4270d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 42711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 42723498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 42733498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 42743498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 427565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return SourceLocation(); } 427665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return SourceLocation(); } 42773498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 42783498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 427963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 428005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 428105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 42822ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 42832ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 42842ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 42852ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 42862ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 42872ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 42882ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 428905ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper ParenListExpr(const ASTContext& C, SourceLocation lparenloc, 429005ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper ArrayRef<Expr*> exprs, SourceLocation rparenloc); 42912ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 42922ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 429337bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 42941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42952ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 42961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 42982ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 42992ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 43002ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 43011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 43032ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 43042ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 43052ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 43062ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 430783ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 43081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43092ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 43102ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 43112ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 431265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return LParenLoc; } 431365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 431465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 43152ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 43161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 43172ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 43181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 432063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 432163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&Exprs[0], &Exprs[0]+NumExprs); 432263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 432337bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 432460adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 43253397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 43262ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 43272ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 43281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4329ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// \brief Represents a C11 generic selection. 4330f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4331ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// A generic selection (C11 6.5.1.1) contains an unevaluated controlling 4332f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression, followed by one or more generic associations. Each generic 4333f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association specifies a type name and an expression, or "default" and an 4334f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression (in which case it is known as a default generic association). 4335f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The type and value of the generic selection are identical to those of its 4336f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// result expression, which is defined as the expression in the generic 4337f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association with a type name that is compatible with the type of the 4338f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// controlling expression, or the expression in the default generic association 4339f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// if no types are compatible. For example: 4340f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4341f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @code 4342f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// _Generic(X, double: 1, float: 2, default: 3) 4343f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @endcode 4344f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4345f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The above expression evaluates to 1 if 1.0 is substituted for X, 2 if 1.0f 4346f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// or 3 if "hello". 4347f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4348f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// As an extension, generic selections are allowed in C++, where the following 4349f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// additional semantics apply: 4350f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4351f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Any generic selection whose controlling expression is type-dependent or 4352f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which names a dependent type in its association list is result-dependent, 4353f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which means that the choice of result expression is dependent. 4354f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Result-dependent generic associations are both type- and value-dependent. 4355f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourneclass GenericSelectionExpr : public Expr { 4356f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne enum { CONTROLLING, END_EXPR }; 4357f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes; 4358f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Stmt **SubExprs; 4359f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, ResultIndex; 4360f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, DefaultLoc, RParenLoc; 4361f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4362f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbournepublic: 436305ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper GenericSelectionExpr(const ASTContext &Context, 4364f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 43653b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<TypeSourceInfo*> AssocTypes, 43663b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> AssocExprs, 43673b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer SourceLocation DefaultLoc, SourceLocation RParenLoc, 4368f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack, 4369f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned ResultIndex); 4370f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4371f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// This constructor is used in the result-dependent case. 437205ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper GenericSelectionExpr(const ASTContext &Context, 4373f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 43743b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<TypeSourceInfo*> AssocTypes, 43753b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer ArrayRef<Expr*> AssocExprs, 43763b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer SourceLocation DefaultLoc, SourceLocation RParenLoc, 4377f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack); 4378f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4379f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne explicit GenericSelectionExpr(EmptyShell Empty) 4380f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne : Expr(GenericSelectionExprClass, Empty) { } 4381f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4382f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getNumAssocs() const { return NumAssocs; } 4383f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4384f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getGenericLoc() const { return GenericLoc; } 4385f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getDefaultLoc() const { return DefaultLoc; } 4386f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getRParenLoc() const { return RParenLoc; } 4387f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4388f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getAssocExpr(unsigned i) const { 4389f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[END_EXPR+i]); 4390f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4391f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getAssocExpr(unsigned i) { return cast<Expr>(SubExprs[END_EXPR+i]); } 4392f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4393f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) const { 4394f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return AssocTypes[i]; 4395f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4396f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) { return AssocTypes[i]; } 4397f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4398f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne QualType getAssocType(unsigned i) const { 4399f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne if (const TypeSourceInfo *TS = getAssocTypeSourceInfo(i)) 4400f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return TS->getType(); 4401f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne else 4402f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return QualType(); 4403f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4404f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4405f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getControllingExpr() const { 4406f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[CONTROLLING]); 4407f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4408f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getControllingExpr() { return cast<Expr>(SubExprs[CONTROLLING]); } 4409f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4410f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// Whether this generic selection is result-dependent. 4411f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool isResultDependent() const { return ResultIndex == -1U; } 4412f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4413f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The zero-based index of the result expression's generic association in 4414f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// the generic selection's association list. Defined only if the 4415f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4416f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getResultIndex() const { 4417f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne assert(!isResultDependent() && "Generic selection is result-dependent"); 4418f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return ResultIndex; 4419f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4420f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4421f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The generic selection's result expression. Defined only if the 4422f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4423f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getResultExpr() const { return getAssocExpr(getResultIndex()); } 4424f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getResultExpr() { return getAssocExpr(getResultIndex()); } 4425f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 442665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return GenericLoc; } 442765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 442865d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 4429f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const Stmt *T) { 4430f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return T->getStmtClass() == GenericSelectionExprClass; 4431f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4432f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4433f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne child_range children() { 4434f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return child_range(SubExprs, SubExprs+END_EXPR+NumAssocs); 4435f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4436f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4437f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne friend class ASTStmtReader; 4438f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne}; 4439f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 44404eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 44414eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 44424eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 44434eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 4444a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4445a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 4446a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 4447a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 4448a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 444973525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 445073525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 445173525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 4452a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 4453a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 4454d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 4455a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 4456a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 4457f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 4458f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 44590943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 44600943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 4461bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 4462561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 4463bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 4464d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 44651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4466d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 4467d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 4468d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 4469d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4470a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 4471a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 4472d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 4473d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4474d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 4475d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 4476d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4477d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 4478d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 4479d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4480a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 4481a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 44821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4483a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 4484a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 4485a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 44861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4487a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 4488a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 4489686775deca8b8685eb90801495880e3abdd844c2Chris Lattner void getEncodedElementAccess(SmallVectorImpl<unsigned> &Elts) const; 44901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 449165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 449265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getBase()->getLocStart(); 4493a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 449465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return AccessorLoc; } 44951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44962140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 44972140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 44982140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 44991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 45011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 4502a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 45031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4504a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 450563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 4506a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 4507a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4508a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 450956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 45109c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 45114eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 451256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 451356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 45144eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 4515469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall BlockExpr(BlockDecl *BD, QualType ty) 4516f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 4517ec79d877c1998366480d97a7a6c94e15c053edd8Douglas Gregor ty->isDependentType(), ty->isDependentType(), 4518ec79d877c1998366480d97a7a6c94e15c053edd8Douglas Gregor ty->isInstantiationDependentType() || BD->isDependentContext(), 4519561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 4520469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall TheBlock(BD) {} 45219c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 452284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 452384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 452484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 4525d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 452656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 452784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 452884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 452956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 453056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 453156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 453256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 45339c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 453465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return getCaretLocation(); } 453565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return getBody()->getLocEnd(); } 45369c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 453756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 4538a345edb668380691fc92d4e4aa0a5ffec366ca6aJohn McCall const FunctionProtoType *getFunctionType() const; 453956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 45401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 45419c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 45424eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 45431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45444eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 454563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 45464eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 45471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 454861eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// AsTypeExpr - Clang builtin function __builtin_astype [OpenCL 6.2.4.2] 454961eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// This AST node provides support for reinterpreting a type to another 455061eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// type of the same size. 455160288600131c3f91bfc8ba512df9f2dd588e3308Hal Finkelclass AsTypeExpr : public Expr { 455261eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerprivate: 4553379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Stmt *SrcExpr; 455461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, RParenLoc; 4555379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4556379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTReader; 4557379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTStmtReader; 4558379010addb0e84fd0fbc37c829baf658958521bdJohn McCall explicit AsTypeExpr(EmptyShell Empty) : Expr(AsTypeExprClass, Empty) {} 4559ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 456061eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerpublic: 456161eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner AsTypeExpr(Expr* SrcExpr, QualType DstType, 456261eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner ExprValueKind VK, ExprObjectKind OK, 456361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, SourceLocation RParenLoc) 4564ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Expr(AsTypeExprClass, DstType, VK, OK, 4565561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType(), 4566561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType() || SrcExpr->isValueDependent(), 4567561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->isInstantiationDependentType() || 4568561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->isInstantiationDependent()), 4569561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->containsUnexpandedParameterPack() || 4570561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->containsUnexpandedParameterPack())), 4571379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SrcExpr(SrcExpr), BuiltinLoc(BuiltinLoc), RParenLoc(RParenLoc) {} 4572ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 457361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner /// getSrcExpr - Return the Expr to be converted. 4574379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Expr *getSrcExpr() const { return cast<Expr>(SrcExpr); } 4575379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4576379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getBuiltinLoc - Return the location of the __builtin_astype token. 4577379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4578379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4579379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getRParenLoc - Return the location of final right parenthesis. 4580379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getRParenLoc() const { return RParenLoc; } 4581ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 458265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; } 458365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 4584ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 458561eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner static bool classof(const Stmt *T) { 4586ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return T->getStmtClass() == AsTypeExprClass; 458761eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner } 4588ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 458961eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner // Iterators 4590379010addb0e84fd0fbc37c829baf658958521bdJohn McCall child_range children() { return child_range(&SrcExpr, &SrcExpr+1); } 459161eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner}; 4592276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 45934b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr - An expression which accesses a pseudo-object 45944b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// l-value. A pseudo-object is an abstract object, accesses to which 45954b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// are translated to calls. The pseudo-object expression has a 45964b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// syntactic form, which shows how the expression was actually 45974b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// written in the source code, and a semantic form, which is a series 45984b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// of expressions to be executed in order which detail how the 45994b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// operation is actually evaluated. Optionally, one of the semantic 46004b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// forms may also provide a result value for the expression. 46014b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 46024b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// If any of the semantic-form expressions is an OpaqueValueExpr, 46034b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// that OVE is required to have a source expression, and it is bound 46044b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// to the result of that source expression. Such OVEs may appear 46054b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// only in subsequent semantic-form expressions and as 46064b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// sub-expressions of the syntactic form. 46074b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 46084b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr should be used only when an operation can be 46094b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// usefully described in terms of fairly simple rewrite rules on 46104b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// objects and functions that are meant to be used by end-developers. 46114b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// For example, under the Itanium ABI, dynamic casts are implemented 46124b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// as a call to a runtime function called __dynamic_cast; using this 46134b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// class to describe that would be inappropriate because that call is 46144b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// not really part of the user-visible semantics, and instead the 46154b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// cast is properly reflected in the AST and IR-generation has been 46164b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// taught to generate the call as necessary. In contrast, an 46174b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Objective-C property access is semantically defined to be 46184b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// equivalent to a particular message send, and this is very much 46194b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// part of the user model. The name of this class encourages this 46204b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// modelling design. 46214b9c2d235fb9449e249d74f48ecfec601650de93John McCallclass PseudoObjectExpr : public Expr { 46224b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.NumSubExprs - The number of sub-expressions. 46234b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Always at least two, because the first sub-expression is the 46244b9c2d235fb9449e249d74f48ecfec601650de93John McCall // syntactic form. 46254b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46264b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.ResultIndex - The index of the 46274b9c2d235fb9449e249d74f48ecfec601650de93John McCall // sub-expression holding the result. 0 means the result is void, 46284b9c2d235fb9449e249d74f48ecfec601650de93John McCall // which is unambiguous because it's the index of the syntactic 46294b9c2d235fb9449e249d74f48ecfec601650de93John McCall // form. Note that this is therefore 1 higher than the value passed 46304b9c2d235fb9449e249d74f48ecfec601650de93John McCall // in to Create, which is an index within the semantic forms. 46314b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Note also that ASTStmtWriter assumes this encoding. 46324b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46334b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr **getSubExprsBuffer() { return reinterpret_cast<Expr**>(this + 1); } 46344b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr * const *getSubExprsBuffer() const { 46354b9c2d235fb9449e249d74f48ecfec601650de93John McCall return reinterpret_cast<const Expr * const *>(this + 1); 46364b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 46374b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46384b9c2d235fb9449e249d74f48ecfec601650de93John McCall friend class ASTStmtReader; 46394b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46404b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(QualType type, ExprValueKind VK, 46414b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *syntactic, ArrayRef<Expr*> semantic, 46424b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 46434b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46444b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(EmptyShell shell, unsigned numSemanticExprs); 46454b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46464b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSubExprs() const { 46474b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.NumSubExprs; 46484b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 46494b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46504b9c2d235fb9449e249d74f48ecfec601650de93John McCallpublic: 46514b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// NoResult - A value for the result index indicating that there is 46524b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// no semantic result. 4653651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines enum : unsigned { NoResult = ~0U }; 46544b9c2d235fb9449e249d74f48ecfec601650de93John McCall 465505ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static PseudoObjectExpr *Create(const ASTContext &Context, Expr *syntactic, 46564b9c2d235fb9449e249d74f48ecfec601650de93John McCall ArrayRef<Expr*> semantic, 46574b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 46584b9c2d235fb9449e249d74f48ecfec601650de93John McCall 465905ed1a0587edcf3b8ee84a67d8c8ca76753d1fc1Craig Topper static PseudoObjectExpr *Create(const ASTContext &Context, EmptyShell shell, 46604b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned numSemanticExprs); 46614b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46624b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the syntactic form of this expression, i.e. the 46634b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expression it actually looks like. Likely to be expressed in 46644b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// terms of OpaqueValueExprs bound in the semantic form. 46654b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSyntacticForm() { return getSubExprsBuffer()[0]; } 46664b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSyntacticForm() const { return getSubExprsBuffer()[0]; } 46674b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46684b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the index of the result-bearing expression into the semantics 46694b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expressions, or PseudoObjectExpr::NoResult if there is none. 46704b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getResultExprIndex() const { 46714b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) return NoResult; 46724b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.ResultIndex - 1; 46734b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 46744b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46754b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the result-bearing expression, or null if there is none. 46764b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getResultExpr() { 46774b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) 46786bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 46794b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[PseudoObjectExprBits.ResultIndex]; 46804b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 46814b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getResultExpr() const { 46824b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getResultExpr(); 46834b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 46844b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46854b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSemanticExprs() const { return getNumSubExprs() - 1; } 46864b9c2d235fb9449e249d74f48ecfec601650de93John McCall 46874b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef Expr * const *semantics_iterator; 46884b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef const Expr * const *const_semantics_iterator; 46894b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_begin() { 46904b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 46914b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 46924b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_begin() const { 46934b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 46944b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 46954b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_end() { 46964b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 46974b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 46984b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_end() const { 46994b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 47004b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 47014b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSemanticExpr(unsigned index) { 47024b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(index + 1 < getNumSubExprs()); 47034b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[index + 1]; 47044b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 47054b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSemanticExpr(unsigned index) const { 47064b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getSemanticExpr(index); 47074b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 47084b9c2d235fb9449e249d74f48ecfec601650de93John McCall 47094f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { 47104b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSyntacticForm()->getExprLoc(); 47114b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 471265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 471365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { 471465d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getSyntacticForm()->getLocStart(); 471565d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen } 471665d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { 471765d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen return getSyntacticForm()->getLocEnd(); 47184b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 47194b9c2d235fb9449e249d74f48ecfec601650de93John McCall 47204b9c2d235fb9449e249d74f48ecfec601650de93John McCall child_range children() { 47214b9c2d235fb9449e249d74f48ecfec601650de93John McCall Stmt **cs = reinterpret_cast<Stmt**>(getSubExprsBuffer()); 47224b9c2d235fb9449e249d74f48ecfec601650de93John McCall return child_range(cs, cs + getNumSubExprs()); 47234b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 47244b9c2d235fb9449e249d74f48ecfec601650de93John McCall 47254b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool classof(const Stmt *T) { 47264b9c2d235fb9449e249d74f48ecfec601650de93John McCall return T->getStmtClass() == PseudoObjectExprClass; 47274b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 47284b9c2d235fb9449e249d74f48ecfec601650de93John McCall}; 47294b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4730276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// AtomicExpr - Variadic atomic builtins: __atomic_exchange, __atomic_fetch_*, 4731276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// __atomic_load, __atomic_store, and __atomic_compare_exchange_*, for the 4732ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith/// similarly-named C++11 instructions, and __c11 variants for <stdatomic.h>. 4733ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith/// All of these instructions take one primary pointer and at least one memory 4734ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith/// order. 4735276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanclass AtomicExpr : public Expr { 4736276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 4737ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith enum AtomicOp { 4738ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith#define BUILTIN(ID, TYPE, ATTRS) 4739ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith#define ATOMIC_BUILTIN(ID, TYPE, ATTRS) AO ## ID, 4740ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith#include "clang/Basic/Builtins.def" 4741ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith // Avoid trailing comma 4742ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith BI_First = 0 4743ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith }; 4744ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith 4745651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // The ABI values for various atomic memory orderings. 4746651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines enum AtomicOrderingKind { 4747651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines AO_ABI_memory_order_relaxed = 0, 4748651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines AO_ABI_memory_order_consume = 1, 4749651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines AO_ABI_memory_order_acquire = 2, 4750651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines AO_ABI_memory_order_release = 3, 4751651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines AO_ABI_memory_order_acq_rel = 4, 4752651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines AO_ABI_memory_order_seq_cst = 5 4753651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines }; 4754651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 4755276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanprivate: 4756ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith enum { PTR, ORDER, VAL1, ORDER_FAIL, VAL2, WEAK, END_EXPR }; 4757276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Stmt* SubExprs[END_EXPR]; 4758276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned NumSubExprs; 4759276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation BuiltinLoc, RParenLoc; 4760276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp Op; 4761276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4762e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith friend class ASTStmtReader; 4763e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith 4764276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 47653b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer AtomicExpr(SourceLocation BLoc, ArrayRef<Expr*> args, QualType t, 4766dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman AtomicOp op, SourceLocation RP); 4767276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4768e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith /// \brief Determine the number of arguments the specified atomic builtin 4769e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith /// should have. 4770e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith static unsigned getNumSubExprs(AtomicOp Op); 4771e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith 4772276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman /// \brief Build an empty AtomicExpr. 4773276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman explicit AtomicExpr(EmptyShell Empty) : Expr(AtomicExprClass, Empty) { } 4774276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4775276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getPtr() const { 4776276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[PTR]); 4777276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4778276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrder() const { 4779276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER]); 4780276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4781276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal1() const { 4782ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith if (Op == AO__c11_atomic_init) 47837a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall return cast<Expr>(SubExprs[ORDER]); 4784ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > VAL1); 4785276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL1]); 4786276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4787276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrderFail() const { 4788ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > ORDER_FAIL); 4789276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER_FAIL]); 4790276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4791276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal2() const { 4792ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith if (Op == AO__atomic_exchange) 4793ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith return cast<Expr>(SubExprs[ORDER_FAIL]); 4794ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > VAL2); 4795276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL2]); 4796276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4797ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith Expr *getWeak() const { 4798ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > WEAK); 4799ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith return cast<Expr>(SubExprs[WEAK]); 4800ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith } 4801276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4802276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp getOp() const { return Op; } 4803276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned getNumSubExprs() { return NumSubExprs; } 4804276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4805dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 4806dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman 4807276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isVolatile() const { 4808276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return getPtr()->getType()->getPointeeType().isVolatileQualified(); 4809276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4810276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4811276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isCmpXChg() const { 4812ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith return getOp() == AO__c11_atomic_compare_exchange_strong || 4813ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith getOp() == AO__c11_atomic_compare_exchange_weak || 4814ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith getOp() == AO__atomic_compare_exchange || 4815ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith getOp() == AO__atomic_compare_exchange_n; 4816276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4817276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4818276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4819276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getRParenLoc() const { return RParenLoc; } 4820276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 482165d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; } 482265d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; } 482365d78312ce026092cb6e7b1d4d06f05e18d02aa0Erik Verbruggen 4824276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman static bool classof(const Stmt *T) { 4825276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return T->getStmtClass() == AtomicExprClass; 4826276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4827276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4828276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman // Iterators 4829276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman child_range children() { 4830276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return child_range(SubExprs, SubExprs+NumSubExprs); 4831276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4832276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman}; 48335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 48345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 48355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 4836