Expr.h revision 4c3fc9b38d3723f73e4ded594cebf38c76f91d93
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- Expr.h - Classes for representing expressions ----------*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file defines the Expr interface and subclasses. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_AST_EXPR_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_AST_EXPR_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson#include "clang/AST/APValue.h" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Stmt.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Type.h" 20161755a09898c95d21bfff33707da9ca41cd53c5John McCall#include "clang/AST/DeclAccessPair.h" 215baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall#include "clang/AST/OperationKinds.h" 22709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek#include "clang/AST/ASTVector.h" 2371a7605977113c795edd44fcbd2302ad49506653Argyrios Kyrtzidis#include "clang/AST/TemplateBase.h" 24409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#include "clang/AST/UsuallyTinyPtrVector.h" 2531dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka#include "clang/Basic/TargetInfo.h" 26f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne#include "clang/Basic/TypeTraits.h" 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/APSInt.h" 28525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner#include "llvm/ADT/APFloat.h" 293b8d116703db8018f855cbb4733ace426422623bNate Begeman#include "llvm/ADT/SmallVector.h" 30b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar#include "llvm/ADT/StringRef.h" 31403ba3522d1b1c97ae5fad81c1a2c4b3a754e1c1Nick Lewycky#include <cctype> 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 34590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 35c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 36c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 37c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 38c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 398e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 40c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 4156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 42409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson class CXXBaseSpecifier; 4388a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 4488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 45f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall class ObjCPropertyRefExpr; 4656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall class OpaqueValueExpr; 4788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 487ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 49686775deca8b8685eb90801495880e3abdd844c2Chris Lattnertypedef SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; 507ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 57898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 588e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCallprotected: 59f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, 60ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool TD, bool VD, bool ID, bool ContainsUnexpandedParameterPack) 61ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Stmt(SC) 62561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor { 638e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.TypeDependent = TD; 648e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.ValueDependent = VD; 65561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = ID; 66f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ValueKind = VK; 67f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ObjectKind = OK; 68bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = ContainsUnexpandedParameterPack; 69898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 70898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 71898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 720b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 730b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 740b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 76f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 789d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 799d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 809d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 819d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 829d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 839d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 849d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 85905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 868320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 87f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 899d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 9077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 91898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 92898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 93898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 95898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 96898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 97898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 988e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isValueDependent() const { return ExprBits.ValueDependent; } 99898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1000b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 101ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setValueDependent(bool VD) { 102ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie ExprBits.ValueDependent = VD; 103561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor if (VD) 104561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = true; 105561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 1060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 107898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 114898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 115898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 117898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 1188e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isTypeDependent() const { return ExprBits.TypeDependent; } 119898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1200b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 121ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setTypeDependent(bool TD) { 122ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie ExprBits.TypeDependent = TD; 123561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor if (TD) 124561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = true; 125561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 126561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor 127561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \brief Whether this expression is instantiation-dependent, meaning that 128561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// it depends in some way on a template parameter, even if neither its type 129561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// nor (constant) value can change due to the template instantiation. 130561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 131561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// In the following example, the expression \c sizeof(sizeof(T() + T())) is 132561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// instantiation-dependent (since it involves a template parameter \c T), but 133561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// is neither type- nor value-dependent, since the type of the inner 134561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \c sizeof is known (\c std::size_t) and therefore the size of the outer 135561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \c sizeof is known. 136561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 137561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \code 138561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// template<typename T> 139561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// void f(T x, T y) { 140561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// sizeof(sizeof(T() + T()); 141561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// } 142561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \endcode 143561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 144ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool isInstantiationDependent() const { 145ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return ExprBits.InstantiationDependent; 146561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 147ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 148561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \brief Set whether this expression is instantiation-dependent or not. 149ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setInstantiationDependent(bool ID) { 150561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = ID; 151561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 1520b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 153d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Whether this expression contains an unexpanded parameter 154d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// pack (for C++0x variadic templates). 155d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 156d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// Given the following function template: 157d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 158d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \code 159d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// template<typename F, typename ...Types> 160d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// void forward(const F &f, Types &&...args) { 161d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// f(static_cast<Types&&>(args)...); 162d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// } 163d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \endcode 164d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 165d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// The expressions \c args and \c static_cast<Types&&>(args) both 166d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// contain parameter packs. 167ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool containsUnexpandedParameterPack() const { 168ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return ExprBits.ContainsUnexpandedParameterPack; 169d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 170d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 171bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// \brief Set the bit that describes whether this expression 172bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// contains an unexpanded parameter pack. 173bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void setContainsUnexpandedParameterPack(bool PP = true) { 174bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = PP; 175bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor } 176bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 17963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const; 1801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 181026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 182026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 183026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 184026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 185026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 186df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1887eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// isLValue - True if this expression is an "l-value" according to 1897eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the rules of the current language. C and C++ give somewhat 1907eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// different rules for this concept, but in general, the result of 1917eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// an l-value expression identifies a specific object whereas the 1927eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// result of an r-value expression is a value detached from any 1937eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// specific storage. 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1957eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// C++0x divides the concept of "r-value" into pure r-values 1967eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// ("pr-values") and so-called expiring values ("x-values"), which 1977eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// identify specific objects that can be safely cannibalized for 1987eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// their resources. This is an unfortunate abuse of terminology on 1997eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the part of the C++ committee. In Clang, when we say "r-value", 2007eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// we generally mean a pr-value. 2017eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isLValue() const { return getValueKind() == VK_LValue; } 2027eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isRValue() const { return getValueKind() == VK_RValue; } 2037eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isXValue() const { return getValueKind() == VK_XValue; } 2047eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isGLValue() const { return getValueKind() != VK_RValue; } 2057eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall 2067eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall enum LValueClassification { 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 210fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 21186f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 212077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian LV_InvalidMessageExpression, 2132514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 214e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 215e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 2177eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// Reasons why an expression might not be an l-value. 2187eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall LValueClassification ClassifyLValue(ASTContext &Ctx) const; 21953202857c60214d80950a975e6e52aebf30bd16aEli Friedman 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 2221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 22544e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 22644e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 22744e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 22844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 233fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 235ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 2384f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 2395daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 240ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 24186f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 2422514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 243e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 244077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian MLV_InvalidMessageExpression, 245e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor MLV_ClassTemporary 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 24744e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 24844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 2491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 2512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 2522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 2532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2542111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 2552111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 2562111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 2572111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 2582111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 2592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 2601c860d5640e8eebb11a5d515a761242b66761b0bPeter Collingbourne CL_AddressableVoid, // Void expression whose address can be taken in C. 2612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 2622111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 2632111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 2642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_ClassTemporary, // A prvalue of class type 265077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian CL_ObjCMessageRValue, // ObjC message is an rvalue 2662111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 2672111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2682111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 2692111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 2702111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 2712111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 2722111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 2732111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 2742111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 2752111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NotBlockQualified, // Not captured in the closure 2762111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 2772111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 2782111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 2792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 2802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 2832111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 2842111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2852111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 2862111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 2872111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2882111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 2892111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 2902111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 2912111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2922111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2932111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 2942111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2952111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 2962111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 2972111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 2982111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 2992111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3002111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 3012111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 3022111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 3032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 3042111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 3052111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 306ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3072c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor /// \brief Create a simple, modifiably lvalue 3082c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor static Classification makeSimpleLValue() { 3092c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor return Classification(CL_LValue, CM_Modifiable); 3102c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor } 311ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3122111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 313369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Classify - Classify this expression according to the C++0x 3142111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 3152111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 3162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x defines ([basic.lval]) a new taxonomy of expressions to replace the 3172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 3182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 3192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 3202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 3212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 3222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 3232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 3242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 3252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 3262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 3272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 329369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief ClassifyModifiable - Classify this expression according to the 3302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x expression taxonomy, and see if it is valid on the left side 3312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 3322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 3332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 3342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 3352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 3362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 3372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 3382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 3392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 341f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKindForType - Given a formal return or parameter type, 342f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// give its value kind. 343f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static ExprValueKind getValueKindForType(QualType T) { 344f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall if (const ReferenceType *RT = T->getAs<ReferenceType>()) 3450943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall return (isa<LValueReferenceType>(RT) 3460943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue 3470943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : (RT->getPointeeType()->isFunctionType() 3480943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue : VK_XValue)); 349f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return VK_RValue; 350f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 351f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 352f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKind - The value kind that this expression produces. 353f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind getValueKind() const { 354f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprValueKind>(ExprBits.ValueKind); 355f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 356f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 357f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getObjectKind - The object kind that this expression produces. 358f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// Object kinds are meaningful only for expressions that yield an 359f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// l-value or x-value. 360f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprObjectKind getObjectKind() const { 361f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprObjectKind>(ExprBits.ObjectKind); 362f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 363f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 36456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool isOrdinaryOrBitFieldObject() const { 36556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprObjectKind OK = getObjectKind(); 36656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return (OK == OK_Ordinary || OK == OK_BitField); 36756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 36856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 369f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setValueKind - Set the value kind produced by this expression. 370f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setValueKind(ExprValueKind Cat) { ExprBits.ValueKind = Cat; } 371f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 372f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setObjectKind - Set the object kind produced by this expression. 373f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setObjectKind(ExprObjectKind Cat) { ExprBits.ObjectKind = Cat; } 374f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 3752111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 3762111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 3772111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3782111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 3792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 38033bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 38133bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 38233bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 3835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 38438d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 38538d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 38638d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 3871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 388f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// \brief If this expression is an l-value for an Objective C 389f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// property, find the underlying property reference expression. 390f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const ObjCPropertyRefExpr *getObjCProperty() const; 391f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 392093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 393093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 3944919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall 3954919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall /// \brief Returns whether this expression has a placeholder type. 3964919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall bool hasPlaceholderType() const { 3974919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return getType()->isPlaceholderType(); 3984919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall } 3994919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall 4004919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall /// \brief Returns whether this expression has a specific placeholder type. 4014919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall bool hasPlaceholderType(BuiltinType::Kind K) const { 40285def357129b6cdfd69a66ad0e6994506418a2a9John McCall assert(BuiltinType::isPlaceholderTypeKind(K)); 4034919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall if (const BuiltinType *BT = dyn_cast<BuiltinType>(getType())) 4044919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return BT->getKind() == K; 4054919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return false; 4064919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall } 407ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 4082b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 4092b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 4102b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 4112b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 4122b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 413ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 4145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 4155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 4165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 418590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 419590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 421f48fdb0937e67f691393f9ffdf75653e5128ea13Richard Smith bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const; 4220e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith 4234c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// isCXX11ConstantExpr - Return true if this expression is a constant 4244c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// expression in C++11. Can only be used in C++. 4254c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith bool isCXX11ConstantExpr(ASTContext &Ctx, APValue *Result = 0, 4264c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith SourceLocation *Loc = 0) const; 4274c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith 4280e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// isConstantInitializer - Returns true if this expression can be emitted to 4290e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// IR as a constant, and thus can be used as a constant initializer in C. 4304204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 4311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4321e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalStatus is a struct with detailed info about an evaluation in progress. 4331e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalStatus { 43494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 43594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 43694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 4371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 438dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// Diag - If this is non-null, it will be filled in with a stack of notes 439dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// indicating why evaluation failed (or why it failed to produce a constant 440dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression). 441dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// If the expression is unfoldable, the notes will indicate why it's not 442dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// foldable. If the expression is foldable, but not a constant expression, 443dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// the notes will describes why it isn't a constant expression. If the 444dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression *is* a constant expression, no notes will be produced. 445dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith llvm::SmallVectorImpl<PartialDiagnosticAt> *Diag; 446dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith 447dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith EvalStatus() : HasSideEffects(false), Diag(0) {} 448e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 449e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 450e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 451e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 452e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 453e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 45494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 45594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 4561e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalResult is a struct with detailed info about an evaluated expression. 4571e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalResult : EvalStatus { 4581e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// Val - This is the value the expression can be folded to. 4591e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith APValue Val; 4601e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 4611e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // isGlobalLValue - Return true if the evaluated lvalue expression 4621e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // is global. 4631e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith bool isGlobalLValue() const; 4641e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith }; 4651e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 46651f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsRValue - Return true if this is a constant which we can fold to 46751f4708c00110940ca3f337961915f2ca1668375Richard Smith /// an rvalue using any crazy technique (that has nothing to do with language 46851f4708c00110940ca3f337961915f2ca1668375Richard Smith /// standards) that we want to, even if the expression has side-effects. If 46951f4708c00110940ca3f337961915f2ca1668375Richard Smith /// this function returns true, it returns the folded constant in Result. If 47051f4708c00110940ca3f337961915f2ca1668375Richard Smith /// the expression is a glvalue, an lvalue-to-rvalue conversion will be 47151f4708c00110940ca3f337961915f2ca1668375Richard Smith /// applied. 47251f4708c00110940ca3f337961915f2ca1668375Richard Smith bool EvaluateAsRValue(EvalResult &Result, const ASTContext &Ctx) const; 4735b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 474cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 475cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 476a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// any crazy technique that we want to, even if the expression has 477a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// side-effects. 4784ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsBooleanCondition(bool &Result, const ASTContext &Ctx) const; 479cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 48080d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith enum SideEffectsKind { SE_NoSideEffects, SE_AllowSideEffects }; 48180d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith 482a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// EvaluateAsInt - Return true if this is a constant which we can fold and 48380d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith /// convert to an integer, using any crazy technique that we want to. 48480d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith bool EvaluateAsInt(llvm::APSInt &Result, const ASTContext &Ctx, 48580d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith SideEffectsKind AllowSideEffects = SE_NoSideEffects) const; 486a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith 48751f4708c00110940ca3f337961915f2ca1668375Richard Smith /// isEvaluatable - Call EvaluateAsRValue to see if this expression can be 48851f4708c00110940ca3f337961915f2ca1668375Richard Smith /// constant folded without side-effects, but discard the result. 4894ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isEvaluatable(const ASTContext &Ctx) const; 490c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 4916ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 49251f4708c00110940ca3f337961915f2ca1668375Richard Smith /// which must be evaluated each time and must not be optimized away 4936ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 4946ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 4954ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool HasSideEffects(const ASTContext &Ctx) const; 49651f4708c00110940ca3f337961915f2ca1668375Richard Smith 49751f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateKnownConstInt - Call EvaluateAsRValue and return the folded 49851f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. This must be called on an expression that constant folds to an 49951f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. 500a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith llvm::APSInt EvaluateKnownConstInt(const ASTContext &Ctx) const; 50151fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 50251f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsLValue - Evaluate an expression to see if we can fold it to an 50351f4708c00110940ca3f337961915f2ca1668375Richard Smith /// lvalue with link time known address, with no side-effects. 5044ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsLValue(EvalResult &Result, const ASTContext &Ctx) const; 5051b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 506099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// EvaluateAsInitializer - Evaluate an expression as if it were the 507099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// initializer of the given declaration. Returns true if the initializer 508099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// can be folded to a constant, and produces any relevant notes. In C++11, 509099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// notes will be produced if the expression is not a constant expression. 510099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith bool EvaluateAsInitializer(APValue &Result, const ASTContext &Ctx, 511099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith const VarDecl *VD, 512099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith llvm::SmallVectorImpl<PartialDiagnosticAt> &Notes) const; 513099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith 51482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Enumeration used to describe the kind of Null pointer constant 51582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// returned from \c isNullPointerConstant(). 51682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth enum NullPointerConstantKind { 51782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is not a Null pointer constant. 51882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_NotNull = 0, 51982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 52082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a Null pointer constant built from a zero integer. 52182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_ZeroInteger, 52282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 52382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a C++0X nullptr. 52482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_CXX0X_nullptr, 52582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 52682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a GNU-style __null constant. 52782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_GNUNull 52882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth }; 52982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 530ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 531ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 532ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 533ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 534ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 535ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 536ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 537ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 538ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 539ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 540ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 541ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 542ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 543ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 544ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 54582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to 54682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// a Null pointer constant. The return value can further distinguish the 54782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// kind of NULL pointer constant that was detected. 54882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantKind isNullPointerConstant( 54982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth ASTContext &Ctx, 55082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantValueDependence NPC) const; 551efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 55244baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 5531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 554102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 5551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 55611ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 55711ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 55811ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 559864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// \brief Given an expression of bound-member type, find the type 560864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// of the member. Returns null if this is an *overloaded* bound 561864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// member expression. 562864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall static QualType findBoundMemberType(const Expr *expr); 563864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 564369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Result type of CanThrow(). 565369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl enum CanThrowResult { 566369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Cannot, 567369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Dependent, 568369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Can 569369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl }; 570369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Test if this expression, if evaluated, might throw, according to 571369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// the rules of C++ [expr.unary.noexcept]. 572369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CanThrowResult CanThrow(ASTContext &C) const; 573369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl 57491a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// IgnoreImpCasts - Skip past any implicit casts which might 57591a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// surround this expression. Only skips ImplicitCastExprs. 57691a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall Expr *IgnoreImpCasts(); 57791a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 5787e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// IgnoreImplicit - Skip past any implicit AST nodes which might 5797e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// surround this expression. 5807e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall Expr *IgnoreImplicit() { return cast<Expr>(Stmt::IgnoreImplicit()); } 5817e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 5824e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 5831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 5844e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 5854e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 5862b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 58756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 58856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 58927c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 59056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 5911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 592ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off 593ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// any ParenExpr or ImplicitCastExprs, returning their operand. 5942fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 5952fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 5962f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// IgnoreConversionOperator - Ignore conversion operator. If this Expr is a 5972f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// call to a conversion operator, return the argument. 5982f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg Expr *IgnoreConversionOperator(); 5992f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 6002f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg const Expr *IgnoreConversionOperator() const { 6012f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg return const_cast<Expr*>(this)->IgnoreConversionOperator(); 6022f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg } 6032f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 6044d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const Expr *IgnoreParenImpCasts() const { 6054d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 6064d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 607ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 608f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 609f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 610f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall Expr *IgnoreParenLValueCasts(); 611ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 612f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const Expr *IgnoreParenLValueCasts() const { 613f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 614f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 6154d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 616ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 617ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 618ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 619ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 6201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6216eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 6226eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 6236eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 624ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// by semantic analysis for function calls, object constructions, etc. in 6256eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 6266eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 6276eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 6286eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 629ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 630558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 631558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 632558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 6332f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 63475e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Whether this expression is an implicit reference to 'this' in C++. 63575e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitCXXThis() const; 63691a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 63791a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall const Expr *IgnoreImpCasts() const { 63891a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return const_cast<Expr*>(this)->IgnoreImpCasts(); 63991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall } 6402b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 6414e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 6424e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 64356f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 64456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 64556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 646ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 647ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 648ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 6491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 650898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 651898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 652898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 6531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 6551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 66556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 66656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// fixed type and value class. These don't correspond to concrete 66756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// syntax; instead they're used to express operations (usually copy 66856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operations) on values whose source is generally obvious from 66956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// context. 67056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass OpaqueValueExpr : public Expr { 67156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 67256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *SourceExpr; 67356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation Loc; 674ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 67556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 676ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK, 67756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprObjectKind OK = OK_Ordinary) 67856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 679ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie T->isDependentType(), T->isDependentType(), 680561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isInstantiationDependentType(), 681ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie false), 68256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceExpr(0), Loc(Loc) { 68356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 68456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 68556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Given an expression which invokes a copy constructor --- i.e. a 68656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// CXXConstructExpr, possibly wrapped in an ExprWithCleanups --- 68756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// find the OpaqueValueExpr that's the source of the construction. 68856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static const OpaqueValueExpr *findInCopyConstruct(const Expr *expr); 68956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 69056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit OpaqueValueExpr(EmptyShell Empty) 69156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, Empty) { } 69256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 69356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Retrieve the location of this expression. 69456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getLocation() const { return Loc; } 695ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 69656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 69756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getSourceRange(); 69856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 69956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 70056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getExprLoc() const { 70156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getExprLoc(); 70256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 70356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 70456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 70556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { return child_range(); } 70656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 70756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression of an opaque value expression is the 70856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which originally generated the value. This is 70956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// provided as a convenience for analyses that don't wish to 71056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// precisely model the execution behavior of the program. 71156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 71256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression is typically set when building the 71356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which binds the opaque value expression in the first 71456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// place. 71556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getSourceExpr() const { return SourceExpr; } 71656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall void setSourceExpr(Expr *e) { SourceExpr = e; } 71756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 71856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 71956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == OpaqueValueExprClass; 72056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 72156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const OpaqueValueExpr *) { return true; } 72256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 72356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 724cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// \brief A reference to a declared variable, function, enum, etc. 725cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// [C99 6.5.1p2] 726cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 727cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// This encodes all the information about how a declaration is referenced 728cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// within an expression. 729cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 730cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// There are several optional constructs attached to DeclRefExprs only when 731cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// they apply in order to conserve memory. These are laid out past the end of 732cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// the object, and flags in the DeclRefExprBitfield track whether they exist: 733cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 734cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// DeclRefExprBits.HasQualifier: 735cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has a C++ 736cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// nested-name-specifier. 7373aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// DeclRefExprBits.HasFoundDecl: 7383aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// Specifies when this declaration reference expression has a record of 7393aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// a NamedDecl (different from the referenced ValueDecl) which was found 7403aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// during name lookup and/or overload resolution. 741cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// DeclRefExprBits.HasExplicitTemplateArgs: 742cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has an explicit 743cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// C++ template argument list. 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 745cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The declaration that we are referencing. 746cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *D; 7472577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 748cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The location of the declaration name itself. 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 7509e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 751cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief Provides source/type location info for the declaration name 752cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// embedded in D. 7532577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 7542577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 7556857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 7566857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc &getInternalQualifierLoc() { 7577e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth assert(hasQualifier()); 7586857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return *reinterpret_cast<NestedNameSpecifierLoc *>(this + 1); 759a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 760cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth 7616857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 7626857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth const NestedNameSpecifierLoc &getInternalQualifierLoc() const { 7636857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalQualifierLoc(); 764a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 765096832c5ed5b9106fa177ebc148489760c3bc496John McCall 7663aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Test whether there is a distinct FoundDecl attached to the end of 7673aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// this DRE. 7683aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool hasFoundDecl() const { return DeclRefExprBits.HasFoundDecl; } 7693aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 7703aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 7713aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// reference occured. 7723aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *&getInternalFoundDecl() { 7733aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth assert(hasFoundDecl()); 7743aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 7753aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(&getInternalQualifierLoc() + 1); 7763aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(this + 1); 7773aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 7783aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 7793aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 7803aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// reference occured. 7813aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getInternalFoundDecl() const { 7823aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalFoundDecl(); 7833aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 7843aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 7857e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth DeclRefExpr(NestedNameSpecifierLoc QualifierLoc, 7862577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 7873aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD, 7882577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 789f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 7902577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 791663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 792663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 793663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 7947e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 7950da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 7960da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 7970da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 7989e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8005b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor DeclRefExpr(ValueDecl *D, QualType T, ExprValueKind VK, SourceLocation L, 8015b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor const DeclarationNameLoc &LocInfo = DeclarationNameLoc()) 802561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(DeclRefExprClass, T, VK, OK_Ordinary, false, false, false, false), 8035b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor D(D), Loc(L), DNLoc(LocInfo) { 804cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth DeclRefExprBits.HasQualifier = 0; 805cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth DeclRefExprBits.HasExplicitTemplateArgs = 0; 8063aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth DeclRefExprBits.HasFoundDecl = 0; 8077cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = 0; 8080da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 8090da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 811a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 81240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 813dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 814a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 815f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 8163aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD = 0, 8170da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 818663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 8192577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 82040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 8212577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 8222577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 823f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 8243aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD = 0, 8252577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 8262577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 827663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 828663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 8293aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasQualifier, 8303aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasFoundDecl, 831def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor bool HasExplicitTemplateArgs, 832def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor unsigned NumTemplateArgs); 8337e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 834cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *getDecl() { return D; } 835cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth const ValueDecl *getDecl() const { return D; } 836cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth void setDecl(ValueDecl *NewD) { D = NewD; } 837904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 8382577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 8392577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 8402577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 8412577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 8429e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 8430b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 84463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 8451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 846a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 847a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 848cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth bool hasQualifier() const { return DeclRefExprBits.HasQualifier; } 8497e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8507e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 851a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 852a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 853a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 854a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 8557e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8566857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc().getNestedNameSpecifier(); 857a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 85840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 8597e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 86040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// that precedes the name, with source-location information. 86140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 86240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 86340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 8647e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8656857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc(); 86640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 86740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 8683aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Get the NamedDecl through which this reference occured. 8693aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// 8703aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// This Decl may be different from the ValueDecl actually referred to in the 8713aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// presence of using declarations, etc. It always returns non-NULL, and may 8723aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// simple return the ValueDecl when appropriate. 8733aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getFoundDecl() { 8743aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 8753aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 8763aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8773aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Get the NamedDecl through which this reference occurred. 8783aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// See non-const variant. 8793aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth const NamedDecl *getFoundDecl() const { 8803aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 8813aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 8823aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8837e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief Determines whether this declaration reference was followed by an 8847e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// explict template argument list. 885096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 886cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth return DeclRefExprBits.HasExplicitTemplateArgs; 887096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 8887e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 889096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 890096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 891b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 892096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(hasExplicitTemplateArgs()); 8933aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasFoundDecl()) 894b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis return *reinterpret_cast<ASTTemplateArgumentListInfo *>( 8953aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalFoundDecl() + 1); 8963aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8973aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 898b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis return *reinterpret_cast<ASTTemplateArgumentListInfo *>( 8993aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalQualifierLoc() + 1); 9007e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 901b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis return *reinterpret_cast<ASTTemplateArgumentListInfo *>(this + 1); 902096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 9037e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 904096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 905096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 906b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 907096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 908a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 909d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 910096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 911096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 912096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 913b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo *getExplicitTemplateArgsOpt() const { 914096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 915096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 916096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 9177e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 918d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 919d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 920d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 921096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 922096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 923d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 9247e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 925a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 926a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 927a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 928096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 929a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 9307e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 931096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 932a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 9337e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 934a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 935a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 936833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 937096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 938a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 9397e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 940096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 941a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 9427e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 943a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 944a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 945a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 946096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 947a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 9487e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 949096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 950a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 9517e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 952a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 953a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 954a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 955096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 956a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 9577e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 958096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 959a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 9607e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 9617cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this expression refers to a function that 9627cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 9637cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 9647cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return DeclRefExprBits.HadMultipleCandidates; 9657cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 9667cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 9677cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a function that was resolved from an overloaded set having size 9687cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 9697cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 9707cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = V; 9717cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 9727cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 9731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 97499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 9771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 97877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 97963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 9807e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 98160adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 9823397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 985d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 986d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 987227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 988227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 989227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 990227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 991848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 992848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 993848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 994848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 995227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 9961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 997227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 998227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 999227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 1000227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 10011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 1002f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 1003ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie type->isDependentType(), type->isDependentType(), 1004561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType(), 1005bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 1006f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 10071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 100817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 10091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 101017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 101117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1012227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 101317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 101417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 101517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 101617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 101717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1018848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 10193a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 102063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 1021227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 10221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 1024227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 1025d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 10261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 102777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 102863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 1029227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 1030227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 10319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 10329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 10339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 10349996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 10359996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 10369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 10379996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 10389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 10399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 10409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned BitWidth; 10419996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 10429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 10439996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 10449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 10459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 10479996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 10499996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 10509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 10529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage() : BitWidth(0), VAL(0) { } 10539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10549996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 10559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 10569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 10579996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 10589996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 10599996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 10609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 10619996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 10629996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 10639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10649996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APIntStorage : public APNumericStorage { 1065ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 1066ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie llvm::APInt getValue() const { return getIntValue(); } 10679996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 10689996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 10699996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10709996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APFloatStorage : public APNumericStorage { 1071ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 107231dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka llvm::APFloat getValue(bool IsIEEE) const { 107331dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka return llvm::APFloat(getIntValue(), IsIEEE); 107431dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka } 10759996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 10769996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 10779996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 10789996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 10799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 10819996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APIntStorage Num; 10825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 10839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10849996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 10859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 10869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 10879996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 10919996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral(ASTContext &C, const llvm::APInt &V, 10929996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l) 1093bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(IntegerLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1094561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1095f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l) { 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 10971dd986dff9ddfbec687975700770bb377988e9edRichard Trieu assert(V.getBitWidth() == C.getIntWidth(type) && 10981dd986dff9ddfbec687975700770bb377988e9edRichard Trieu "Integer type is not the correct size for constant."); 10999996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1101a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 11021dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new integer literal with value 'V' and type 'type'. 11031dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param type - either IntTy, LongTy, LongLongTy, UnsignedIntTy, 11041dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// UnsignedLongTy, or UnsignedLongLongTy which should match the size of V 11051dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param V - the value that the returned integer literal contains. 11069996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 11079996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 11081dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new empty integer literal. 11099996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 11100b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 11119996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return Num.getValue(); } 111263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1114313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 1115313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 1116313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 11179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { Num.setValue(C, Val); } 11180b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 11190b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 11201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 11241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 112577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 112663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 11305cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 11315cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum CharacterKind { 11325cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 11335cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 11345cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 11355cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 11365cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 11375cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 11385cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 11415cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor unsigned Kind : 2; 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 11445cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor CharacterLiteral(unsigned value, CharacterKind kind, QualType type, 11455cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation l) 1146bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1147561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 11485cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Value(value), Loc(l), Kind(kind) { 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11500b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 11510b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 11520b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 11530b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1154018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 11555cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor CharacterKind getKind() const { return static_cast<CharacterKind>(Kind); } 11561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 115763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 11581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11610b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 11625cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor void setKind(CharacterKind kind) { Kind = kind; } 11630b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 11640b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 11651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 116977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 117077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 117163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 11759996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APFloatStorage Num; 117631dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka bool IsIEEE : 1; // Distinguishes between PPC128 and IEEE128. 1177720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 11799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11809996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 1181720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 1182bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(FloatingLiteralClass, Type, VK_RValue, OK_Ordinary, false, false, 1183561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 118431dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka IsIEEE(&C.getTargetInfo().getLongDoubleFormat() == 118531dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka &llvm::APFloat::IEEEquad), 11869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IsExact(isexact), Loc(L) { 11879996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 11889996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 119017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 119131dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka explicit FloatingLiteral(ASTContext &C, EmptyShell Empty) 119231dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka : Expr(FloatingLiteralClass, Empty), 119331dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka IsIEEE(&C.getTargetInfo().getLongDoubleFormat() == 119431dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka &llvm::APFloat::IEEEquad), 119531dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka IsExact(false) { } 119617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 11979996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 11989996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 11999996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 12009996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 12019996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 120231dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka llvm::APFloat getValue() const { return Num.getValue(IsIEEE); } 12039996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 12049996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis Num.setValue(C, Val); 12059996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 120617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1207720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 120817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 1209c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 1210da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 1211da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 1212da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 1213da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 12141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 121517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 121617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 121717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 121863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 12241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 122577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 122663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 12275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12295d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 12305d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 12315d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 12325d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 12335d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 12345d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 12355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 12365d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 12375d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 1238bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false, 1239561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1240f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 12411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1242cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 12431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 1244cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 1245cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 12465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 12475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1248cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1249cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 125063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return Val->getSourceRange(); } 12511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 12535d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 12545d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 12551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12565d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 125763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 12585d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 12595d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1260e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1261e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 1262e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1263a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1264c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1265c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1266690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1267690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 12688bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1269690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1270c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1271c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1272c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1273c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1274c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1275c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 12765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 12775cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 12785cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum StringKind { 12795cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 12805cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 12815cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF8, 12825cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 12835cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 12845cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 12855cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 12865cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 12873e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson friend class ASTStmtReader; 12883e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson 128964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman union { 129064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const char *asChar; 129164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint16_t *asUInt16; 129264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint32_t *asUInt32; 129364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } StrData; 129464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned Length; 129564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned CharByteWidth; 1296726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 12975cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor unsigned Kind : 3; 12985cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool IsPascal : 1; 1299726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 13002085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1301f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1302561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false, false, 1303561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false) {} 13041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 130564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman static int mapCharByteWidth(TargetInfo const &target,StringKind k); 130664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 13082085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 13092085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 13105cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor static StringLiteral *Create(ASTContext &C, StringRef Str, StringKind Kind, 131165aa6885818d4b4eea2e5a9d12085b2398148662Jay Foad bool Pascal, QualType Ty, 1312a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 13132085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 13142085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 13155cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor static StringLiteral *Create(ASTContext &C, StringRef Str, StringKind Kind, 13165cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool Pascal, QualType Ty, 13175cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation Loc) { 13185cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor return Create(C, Str, Kind, Pascal, Ty, &Loc, 1); 13192085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1320a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1321673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1322673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1323673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1324686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef getString() const { 132564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert(CharByteWidth==1 132664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman && "This function is used in places that assume strings use char"); 132764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(StrData.asChar, getByteLength()); 132864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 132964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 133064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman /// Allow clients that need the byte representation, such as ASTWriterStmt 133164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman /// ::VisitStringLiteral(), access. 133264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringRef getBytes() const { 133364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman // FIXME: StringRef may not be the right type to use as a result for this... 133464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert((CharByteWidth==1 || CharByteWidth==2 || CharByteWidth==4) 133564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman && "unsupported CharByteWidth"); 133664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman if (CharByteWidth==4) { 133764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(reinterpret_cast<const char*>(StrData.asUInt32), 133864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman getByteLength()); 133964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } else if (CharByteWidth==2) { 134064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(reinterpret_cast<const char*>(StrData.asUInt16), 134164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman getByteLength()); 134264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } else { 134364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(StrData.asChar, getByteLength()); 134464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 1345b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 13462f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 134764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman uint32_t getCodeUnit(size_t i) const { 134864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert(i<Length && "out of bounds access"); 134964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert((CharByteWidth==1 || CharByteWidth==2 || CharByteWidth==4) 135064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman && "unsupported CharByteWidth"); 135164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman if (CharByteWidth==4) { 135264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StrData.asUInt32[i]; 135364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } else if (CharByteWidth==2) { 135464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StrData.asUInt16[i]; 135564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } else { 135664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return static_cast<unsigned char>(StrData.asChar[i]); 135764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 135864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 135964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 136064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getByteLength() const { return CharByteWidth*Length; } 136164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getLength() const { return Length; } 136264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getCharByteWidth() const { return CharByteWidth; } 1363673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1364673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 136564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman void setString(ASTContext &C, StringRef Str, 136664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringKind Kind, bool IsPascal); 1367673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 13685cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor StringKind getKind() const { return static_cast<StringKind>(Kind); } 1369ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1370ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 13715cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isAscii() const { return Kind == Ascii; } 13725cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isWide() const { return Kind == Wide; } 13735cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF8() const { return Kind == UTF8; } 13745cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF16() const { return Kind == UTF16; } 13755cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF32() const { return Kind == UTF32; } 13763e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool isPascal() const { return IsPascal; } 13775cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 13788d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1379686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef Str = getString(); 1380b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1381b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 138233fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 138333fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 138433fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1385ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1386726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1387726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1388726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 13891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1390726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1391726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1392726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1393726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 13941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1395673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1396673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1397673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 1398ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 139908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 140008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 140108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 140208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 140308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 140408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 140508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 140608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 140708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 140808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1409673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1410b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1411b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1412b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 14135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 141463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 14151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 14165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 14195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 14211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 142277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 142363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 14245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 14275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 14285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 14295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 14305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 14315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1433898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1434f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 1435bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->isTypeDependent(), val->isValueDependent(), 1436561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor val->isInstantiationDependent(), 1437bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->containsUnexpandedParameterPack()), 1438898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 14391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1440c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 14411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1442c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1443c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 14445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 14455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1446c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1447c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 144863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(L, R); } 14495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1450313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1451313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1452c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1453313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1454313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1455313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1456c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1457313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 14581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 14605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 14621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 146377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 146463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 14655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14680518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 14690518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1471dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1472dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1473dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1474dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1475dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1476dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1477dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 14785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 14795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14805baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 14815baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 14825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 14830799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 14845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 14850799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 14861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 14875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1488f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1489f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1490f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1491de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 1492bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->isValueDependent(), 1493ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (input->isInstantiationDependent() || 1494561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType()), 1495bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->containsUnexpandedParameterPack()), 14960799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 14975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14980b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 14991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 15002de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 15010b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15020799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 15030b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 15040b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 15060b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 15070b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 15095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 15100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 15110b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 15132085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 15142de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 15152085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 15165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1517cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 15182085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 15192de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 15202085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 15215a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 15220799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 15230799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 15243c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15253c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementOp(Opcode Op) { 15263c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreInc || Op == UO_PostInc; 15273c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15282de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 15293c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementOp(getOpcode()); 15303c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15313c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15323c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isDecrementOp(Opcode Op) { 15333c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreDec || Op == UO_PostDec; 15342de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15353c3b7f90a863af43fa63043d396553ecf205351cJohn McCall bool isDecrementOp() const { 15363c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isDecrementOp(getOpcode()); 15373c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15383c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15393c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementDecrementOp(Opcode Op) { return Op <= UO_PreDec; } 15402de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 15413c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementDecrementOp(getOpcode()); 15422de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15433c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15442de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 15452de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 15462de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15470799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 15481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 15505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 15515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 15525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1553bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1554bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1555bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1556bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1557bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1558bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1559bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1560bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 156163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 15625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 15635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 15645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 15655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 15665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 156763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return Loc; } 15681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 15715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 15731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 157477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 157563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 15765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 15798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 15808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 15818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 15828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1583ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// double d; 15848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 15858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 15868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 15878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 15888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 15898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1590ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 15918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 15938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 15948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 15958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 15968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 15978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 15988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1599cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 16008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1601cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 16028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1603cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1604cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1605cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1606cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1607cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 16088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 16098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 16108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 16118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1612ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 16148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1615ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 16178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1618ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - An unsigned index into the array of Expr*'s stored after this node 16198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 16208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 16218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 16228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1623ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - A CXXBaseSpecifier*, for references that look at a field in a 1624cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 16258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1626ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 16288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1629ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 16308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 16318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1632ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1634ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 16358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1636ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 16378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1638ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 16408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 16418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1642ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 16438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1644cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1645cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1646cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1647cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1648ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1650ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie Kind getKind() const { 16518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 16528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1653ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 16558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 16568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 16578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 16588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 16598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 16608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 16618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 16628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 16638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1664cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 16658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1666ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 16688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 16698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1670ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1671cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1672cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1673cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1674ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1675cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1676ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 16788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 16798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 16808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1681ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// contains the location of the period (if there is one) and the 16828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 168306dec892b5300b43263d25c5476b506c9d6cfbadAbramo Bagnara SourceRange getSourceRange() const { return Range; } 16848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 16858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 16868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1687ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 16898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 16908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 16918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 16928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 16938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 16948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1695ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1696ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfExpr(ASTContext &C, QualType type, 16978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1698ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode* compsPtr, unsigned numComps, 16998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 17008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 17018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 17038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1704ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 17058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1707ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1708ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie static OffsetOfExpr *Create(ASTContext &C, QualType type, 1709ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1710ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode* compsPtr, unsigned numComps, 17118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 17128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 17138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1714ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie static OffsetOfExpr *CreateEmpty(ASTContext &C, 17158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 17168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 17188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 17198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 17208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 17228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 17238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1724ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 17268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 17278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 17298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 17308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1731ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17328cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const OffsetOfNode &getComponent(unsigned Idx) const { 17338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 17348cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return reinterpret_cast<const OffsetOfNode *> (this + 1)[Idx]; 17358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 17388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 17398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 17408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1741ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 17438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 17448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 17478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 17488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 17498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 17508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17518cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getIndexExpr(unsigned Idx) const { 17528cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<OffsetOfExpr*>(this)->getIndexExpr(Idx); 17538cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 17548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 17568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 17578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 17588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 17598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1760ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 17628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 17638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 176563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 17668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 17678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 17708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 17718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 17748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 177663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 177763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = 177863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall reinterpret_cast<Stmt**>(reinterpret_cast<OffsetOfNode*>(this + 1) 177963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall + NumComps); 178063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumExprs); 178163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 17828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 17838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1784f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated) 1785f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// expression operand. Used for sizeof/alignof (C99 6.5.3.4) and 1786f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// vec_step (OpenCL 1.1 6.11.12). 1787f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourneclass UnaryExprOrTypeTraitExpr : public Expr { 1788f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne unsigned Kind : 2; 17890518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1790d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1791a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1792d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1793d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 17945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 179542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 17965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1797f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, TypeSourceInfo *TInfo, 1798f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1799f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1800f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1801ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 18022850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1803bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->isDependentType(), 1804561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor TInfo->getType()->isInstantiationDependentType(), 1805bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->containsUnexpandedParameterPack()), 1806f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Kind(ExprKind), isType(true), OpLoc(op), RParenLoc(rp) { 1807a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1808ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1809ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 1810f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, Expr *E, 1811f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1812f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1813f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1814ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1815ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1816bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->isTypeDependent(), 1817561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor E->isInstantiationDependent(), 1818bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->containsUnexpandedParameterPack()), 1819f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Kind(ExprKind), isType(false), OpLoc(op), RParenLoc(rp) { 1820ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1821d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 18220518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 18230b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 1824f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne explicit UnaryExprOrTypeTraitExpr(EmptyShell Empty) 1825f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne : Expr(UnaryExprOrTypeTraitExprClass, Empty) { } 18260b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1827f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTrait getKind() const { 1828f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return static_cast<UnaryExprOrTypeTrait>(Kind); 1829f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne } 1830f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne void setKind(UnaryExprOrTypeTrait K) { Kind = K; } 18310b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 18320518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 18330518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 18345ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 18355ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1836a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 18370518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 18385ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 18390518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1840caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 18410518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1842d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 18430518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1844caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1845f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return const_cast<UnaryExprOrTypeTraitExpr*>(this)->getArgumentExpr(); 1846caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 18470b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 18480b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1849a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1850a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 18511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 18520b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 18530b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 18540518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 18550518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 18560518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 18570518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 18580518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 18590518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 186076e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 18610b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 18620b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 18630b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 18640b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1865866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 186663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 1867866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1868866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 18695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 1871f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return T->getStmtClass() == UnaryExprOrTypeTraitExprClass; 18725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1873f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne static bool classof(const UnaryExprOrTypeTraitExpr *) { return true; } 18741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 187577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 187663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children(); 18775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 18785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 18805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 18815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 18825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 18845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 188577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 18861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 18875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 18885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 18892324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 1890f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 189173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 1892f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 18932850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 1894bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 1895561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 1896561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 1897bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 1898bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 18992850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 190073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 190173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 190273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 19031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1904cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1905cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1906cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1907cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 19082324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 19092324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 19102324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 19112324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 19122324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 191333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 191433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 191533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 191633fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 19175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 19185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1919cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1920cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 19215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 19225549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1923cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 19241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 19265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 192777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 19281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 19305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 19312324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 19321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 19345549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 19352324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 19361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 193777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 19385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 19391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 19401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 194163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 194277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 19435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1945026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1946cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1947cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 194863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 19495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 19511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 19525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 19541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 195577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 195663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 195763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 195863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 19595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1962b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 19631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1964b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 19651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1966b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1967b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 19685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 1969cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne enum { FN=0, PREARGS_START=1 }; 19705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 19715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 19725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 19731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1974b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1975cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne // These versions of the constructor are for derived classes. 1976cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext& C, StmtClass SC, Expr *fn, unsigned NumPreArgs, 1977cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **args, unsigned numargs, QualType t, ExprValueKind VK, 1978cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SourceLocation rparenloc); 1979cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext &C, StmtClass SC, unsigned NumPreArgs, EmptyShell Empty); 1980cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 1981cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Stmt *getPreArg(unsigned i) { 1982cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1983cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 1984cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1985cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const Stmt *getPreArg(unsigned i) const { 1986cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1987cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 1988cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1989cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne void setPreArg(unsigned i, Stmt *PreArg) { 1990cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1991cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[PREARGS_START+i] = PreArg; 1992cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1993cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 1994cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne unsigned getNumPreArgs() const { return CallExprBits.NumPreArgs; } 199542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 19965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 19971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 1998f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 19991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20001f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 2001ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 20021f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 20035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 20045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 200518b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 2006a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 2007d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 2008d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 2009d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 2010d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 2011d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 2012a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 2013a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 2014bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 2015bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 2016bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 2017a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 20185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 20195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 20211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2022aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the call arguments. 2023cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **getArgs() { 2024cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return reinterpret_cast<Expr **>(SubExprs+getNumPreArgs()+PREARGS_START); 2025cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2026d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith const Expr *const *getArgs() const { 2027d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith return const_cast<CallExpr*>(this)->getArgs(); 2028d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith } 2029ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 20305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 20315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 20325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2033cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 20345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 20365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2037cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 20385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2040934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 2041934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 2042934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 2043cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[Arg+getNumPreArgs()+PREARGS_START] = ArgExpr; 2044934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 20451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2046d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 2047d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 2048d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 20498189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 20501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 20525549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 20531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2054cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_begin() { return SubExprs+PREARGS_START+getNumPreArgs(); } 2055cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_end() { 2056cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2057cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2058cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_begin() const { 2059cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs(); 2060cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2061cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_end() const { 2062cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2063cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 20641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 20665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 20675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 20685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2069cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 2070cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 2071180f47959a066795cc0f409433023af448bb0328Richard Smith unsigned isBuiltinCall() const; 20721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 20741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 20756dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 20766dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 20771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2078d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 20791f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2080866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 20812882eca5a184c78f793188083f6ce539740a5cf2John McCall SourceRange getSourceRange() const; 20821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20844bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 20854bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 20865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 208888a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 208977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 209063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 209163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], 209263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall &SubExprs[0]+NumArgs+getNumPreArgs()+PREARGS_START); 209363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 20945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 20955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2096ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 20975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 20985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 20996bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 21006857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth struct MemberNameQualifier { 21016857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The nested-name-specifier that qualifies the name, including 21026857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// source-location information. 21036857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc QualifierLoc; 21046857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth 21056857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The DeclAccessPair through which the MemberDecl was found due to 21066857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// name qualifiers. 2107161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 21086bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 21096bb8017bb9e828d118e15e59d71c66bba323c364John McCall 2110ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 2111ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 21125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 21131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2114ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 2115ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 2116f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 21171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2118ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 21195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 21201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21212577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 21222577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 21232577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 21242577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 2125ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 212683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 21271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 212883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 21296bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 21306bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 2131c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 21326bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 21331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2134c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 2135c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 2136c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 2137c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 21386bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 2139c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 21401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21417cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief True if this member expression refers to a method that 21427cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 21437cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool HadMultipleCandidates : 1; 21447cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 214583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 21466bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 21476bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 21486bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 214983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 215083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 215183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 21526bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 2153c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 2154c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 21551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2157f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2158f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 2159f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2160f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2161ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie base->isTypeDependent(), 2162561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isValueDependent(), 2163561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2164bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 21652577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 21662577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 21677cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false), 21687cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) { 21692577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 21702577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 21712577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 21722577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 21732577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 21742577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 21752577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // for constructors, destructors and conversion oeprators). 21762577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2177f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 2178f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2179f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2180bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 2181561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2182bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 21832577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 21842577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 21857cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false), 21867cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) {} 2187510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 21881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 218940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 2190161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 21912577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 2192d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 2193f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 21941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 219588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 21965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 219757e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 219857e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 219957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 220057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 220157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 2202f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 2203f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 22041f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 22056bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 2206161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 22076bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 2208161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 2209161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 22106bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 22116bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 22126bb8017bb9e828d118e15e59d71c66bba323c364John McCall 22131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 22140979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 22150979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 22166bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 22171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 221983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 222083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 22211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 22226bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 222383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 22241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 222540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc.getNestedNameSpecifier(); 222640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 222740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 2228ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// \brief If the member name was qualified, retrieves the 222940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// nested-name-specifier that precedes the member name, with source-location 223040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// information. 223140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 223240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 223340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 2234ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 223540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc; 223683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 2237c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 2238c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 2239c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 2240096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 22411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 2242c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 22431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2244d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 2245d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 2246d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 2247096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 2248096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 2249096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2250096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2251096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2252096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 2253096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 2254b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 2255096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(HasExplicitTemplateArgumentList); 2256096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!HasQualifierOrFoundDecl) 2257b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis return *reinterpret_cast<ASTTemplateArgumentListInfo *>(this + 1); 2258096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2259b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis return *reinterpret_cast<ASTTemplateArgumentListInfo *>( 2260096832c5ed5b9106fa177ebc148489760c3bc496John McCall getMemberQualifier() + 1); 2261096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2262096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2263096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2264096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 2265096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 2266b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 2267096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 2268096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2269096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2270096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 2271096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 2272096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 2273b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo *getOptionalExplicitTemplateArgs() const { 2274096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 2275096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 2276d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 2277ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 22781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 2279c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 22801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 2281c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 2282c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 22831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2284096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 2285c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 22861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2287c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 2288c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 2289833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 2290c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 22911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 22921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2293096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 2294c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 22951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2296c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 2297c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 22981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 2299c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 23001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 23011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2302096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 2303c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 2306c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 23071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 2308c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 2309c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 23101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2311096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 2312c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23142577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 23152577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 23162577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 23172577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 23182577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 23192577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 23205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 23211f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 23221f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 2323ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 2324ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 2325026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 23261f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 23275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 232875e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor SourceRange getSourceRange() const; 2329ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 233063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return MemberLoc; } 23315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 233275e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Determine whether the base of this explicit is implicit. 233375e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitAccess() const { 233475e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor return getBase() && getBase()->isImplicitCXXThis(); 233575e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor } 23367cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 23377cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this member expression refers to a method that 23387cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 23397cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 23407cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return HadMultipleCandidates; 23417cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 23427cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 23437cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a method that was resolved from an overloaded set having size 23447cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 23457cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 23467cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates = V; 23477cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 23487cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 23491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 235083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 23515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 23531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23541237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 235563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 23564045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 23574045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 23584045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 23595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 2362aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 2363aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 23640fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 23650fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 23660fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 23670fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 23681d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 23691d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 23701d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 237142f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 23725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 2373e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 2374aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 237542f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 2376f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 2377f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 2378ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie tinfo->getType()->isDependentType(), 2379bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->isValueDependent(), 2380561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (init->isInstantiationDependent() || 2381561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor tinfo->getType()->isInstantiationDependentType()), 2382bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->containsUnexpandedParameterPack()), 238342f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 23841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2385ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 2386ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 2387ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 2388ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 23895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 23905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 2391ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 2392e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 2393e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 2394ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 2395ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 23960fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 2397ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2398ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 239942f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 240042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 240142f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 240263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 24030fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 24040fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 24050fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 24060fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 240773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 24080fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 240973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2410aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 24111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2413aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 2414aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 24151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24161237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 241763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Init, &Init+1); } 2418aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2419aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 242049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 242149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 242249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 242349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 24240835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2425cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 24265baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 24271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2428cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 24290835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2430409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 24311d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall void CheckCastConsistency() const; 2432409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2433f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2434f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2435f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2436f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2437f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2438654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis void setBasePathSize(unsigned basePathSize) { 2439654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis CastExprBits.BasePathSize = basePathSize; 2440654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis assert(CastExprBits.BasePathSize == basePathSize && 2441654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis "basePathSize doesn't fit in bits of CastExprBits.BasePathSize!"); 2442654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis } 2443654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis 24440835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2445f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2446f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2447f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2448898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2449898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2450898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2451898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2452898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 2453bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType() || (op && op->isValueDependent()), 2454ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (ty->isInstantiationDependentType() || 2455561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (op && op->isInstantiationDependent())), 2456bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (ty->containsUnexpandedParameterPack() || 2457bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor op->containsUnexpandedParameterPack())), 24588e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2459daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 24608e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 2461654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 24621d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall#ifndef NDEBUG 2463daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 24641d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall#endif 2465f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 24661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2467087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2468f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 24698e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 2470654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 24718e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 24721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24730835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 24748e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 24758e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2476f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2477f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 24780835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 24790835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2480087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2481087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 24826eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 24836eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 24846eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 24856eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 24866eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 24876eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 24886eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 248941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2490f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2491f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 24928e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 24938e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2494f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2495f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2496f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2497f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2498f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2499f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 250041b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 25011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 25024bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 25034bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 25040835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 25050835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 25061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25070835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 250863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Op, &Op+1); } 25090835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 25100835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 251149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 251249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 251349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 251449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 251549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2516bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2517bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2518906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2519bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2520bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2521bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2522bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2523906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 25241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2525906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2526906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2527906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2528906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2529bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2530bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 25310835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2532906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2533f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 25345baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2535f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 25365baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 253790045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2538087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2539f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2540f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2541f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2542f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2543f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2544f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 25455baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2546f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 25475baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2548f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2549f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2550f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2551f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 25525baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2553f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2554f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2555087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 255663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 25570835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 25580835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 255990045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 25601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 25611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 256249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 256349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 256449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 256549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 256691a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCallinline Expr *Expr::IgnoreImpCasts() { 256791a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall Expr *e = this; 256891a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall while (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e)) 256991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall e = ice->getSubExpr(); 257091a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return e; 257191a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall} 257291a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 257349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 25741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 257549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 257649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 257749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 257849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 257949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 258049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 25815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 258249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 258349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 258449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 258549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 258649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2587906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2588906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 25890835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 25909d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 25919d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 25929d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 259349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 259449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2595f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2596f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2597f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2598f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 259949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2600db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2601f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2602f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2603db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 260449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 26059d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 26069d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 26079d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 26089d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 26099d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 261049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 261149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 26129d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 261349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 26141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26154bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 26164bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 261749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 261849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 261949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 262049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 26216eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 262249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 262349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 26246eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2625b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2626b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2627f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2628f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2629f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 263041b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2631f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 263241b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 263349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2634db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2635f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2636f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2637f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2638f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2639f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2640f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2641f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2642f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2643f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2644f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2645f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2646db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2647b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2648db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2649db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2650b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2651db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2652db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 265363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2654b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 26555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 26585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26596eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 26605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 26615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26623fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 26633fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 26643fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 26653fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 26663fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 26673fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 26683fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 26693fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 26703fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 26713fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 26723fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 26733fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 26743fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 26753fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 26763fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 26773fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 26783fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 26793fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 26805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 26815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 26825baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 26835baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 268417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 26850799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 26860799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 26870799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 268817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 26895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 26901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 26911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 269217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2693f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 269417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2695f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2696898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 2697bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2698561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2699561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2700bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2701bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 2702898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 27031237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 27041237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 27051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 27065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 27075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2709db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 27101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 27112de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2712db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 27132def77399ab3088106a2d61372344f5b7104e1a2David Blaikie SourceLocation getExprLoc() const { return OpLoc; } 271417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2715db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2716db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 27170799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2718db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2719db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 27205549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2721db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 27225549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2723db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2724db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 272563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 27265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 27275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 27305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 27315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 27325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27330799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2734a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2735063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2736063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2737063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2738063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2739063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2740063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2741063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2742063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 27435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2744200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 27452de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 27462de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 27470799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 27482de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 27490799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2750aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 27512de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 27520799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2753f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 27542de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 27550799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2756f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 27572de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 27580799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 27591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27602de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 27610799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2762aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 27632de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 27640799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2765f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 27660e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isAssignmentOp(Opcode Opc) { 27670e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return Opc >= BO_Assign && Opc <= BO_OrAssign; 27680e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 27690e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); } 27700e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 27710e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isCompoundAssignmentOp(Opcode Opc) { 27722de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 27732de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 27740e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isCompoundAssignmentOp() const { 27750e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isCompoundAssignmentOp(getOpcode()); 27760e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 27774b9c2d235fb9449e249d74f48ecfec601650de93John McCall static Opcode getOpForCompoundAssignment(Opcode Opc) { 27784b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(isCompoundAssignmentOp(Opc)); 2779b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall if (Opc >= BO_AndAssign) 2780b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall return Opcode(unsigned(Opc) - BO_AndAssign + BO_And); 27814b9c2d235fb9449e249d74f48ecfec601650de93John McCall else 27824b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Opcode(unsigned(Opc) - BO_MulAssign + BO_Mul); 27834b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 27840e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 27850e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isShiftAssignOp(Opcode Opc) { 27862de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 27872de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 27880e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isShiftAssignOp() const { 27890e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isShiftAssignOp(getOpcode()); 27900e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 27911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 27934bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 27944bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 27955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 27971237c673c07f9d827129ba02720108816abde562Ted Kremenek 27981237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 279963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 280063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 280163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 28021237c673c07f9d827129ba02720108816abde562Ted Kremenek 28035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 280417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2805f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 28062333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 2807f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 28082333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 2809bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2810561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2811561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2812bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2813bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 28142333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 28151237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 28161237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 28175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2818ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 28191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 28202de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 28215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 28225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 28245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 2825ec5bc81fd55bfcc26fc4bde6d5e33113d94c2209Zhongxing Xu/// these operators, the operands are promoted, the arithmetic performed, an 28265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 28275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 28285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 28295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2830ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2831ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 28325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2833f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 2834f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2835f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 283617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 2837f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, true), 2838ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2839ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 28401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 28415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 28425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2844ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2845ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2846ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2847ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2848ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2849ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2850ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2851ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2852ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2853ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2854ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2855ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2856ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 28575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 28581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 28591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 28605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 28625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 286356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// AbstractConditionalOperator - An abstract base class for 286456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator and BinaryConditionalOperator. 286556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass AbstractConditionalOperator : public Expr { 286656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation QuestionLoc, ColonLoc; 286756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 286856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 286956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallprotected: 287056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, QualType T, 287156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprValueKind VK, ExprObjectKind OK, 2872561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor bool TD, bool VD, bool ID, 287356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool ContainsUnexpandedParameterPack, 287456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, 287556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation cloc) 2876561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(SC, T, VK, OK, TD, VD, ID, ContainsUnexpandedParameterPack), 287756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QuestionLoc(qloc), ColonLoc(cloc) {} 287856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 287956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, EmptyShell Empty) 288056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, Empty) { } 288156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 288256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 288356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getCond - Return the expression representing the condition for 288456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 288556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const; 288656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 288756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 288856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 288956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const; 289056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 289156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 289256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 289356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 289456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const; 289556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 289656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getQuestionLoc() const { return QuestionLoc; } 289756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getColonLoc() const { return ColonLoc; } 289856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 289956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 290056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == ConditionalOperatorClass || 290156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->getStmtClass() == BinaryConditionalOperatorClass; 290256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 290356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const AbstractConditionalOperator *) { return true; } 290456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 290556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 290656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator - The ?: ternary operator. The GNU "missing 290756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// middle" extension is a BinaryConditionalOperator. 290856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass ConditionalOperator : public AbstractConditionalOperator { 29091237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 29105549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 291156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 291256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 29135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 291447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 291556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation CLoc, Expr *rhs, 29160943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 291756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, t, VK, OK, 2918898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2919898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2920898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 292156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (lhs->isTypeDependent() || rhs->isTypeDependent()), 292256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (cond->isValueDependent() || lhs->isValueDependent() || 292356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->isValueDependent()), 2924561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 2925561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 2926561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2927bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 292856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall lhs->containsUnexpandedParameterPack() || 292956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 293056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QLoc, CLoc) { 29311237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 29321237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 29331237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 29341237c673c07f9d827129ba02720108816abde562Ted Kremenek } 29355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2936ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2937ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 293856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, Empty) { } 2939ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2940395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 294156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 29425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2943395a2abf0028968d85958610e393e067885dc14fTed Kremenek 294456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 294556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 294656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { return cast<Expr>(SubExprs[LHS]); } 29471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 294856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 294956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 295056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 29515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 2952ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 295356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 29545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 295547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 295663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 29575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 29585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 29601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 29615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 29631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29641237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 296563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 296663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 296763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 29685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 29695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 297056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// BinaryConditionalOperator - The GNU extension to the conditional 297156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operator which allows the middle operand to be omitted. 297256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// 297356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// This is a different expression kind on the assumption that almost 297456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// every client ends up needing to know that these are different. 297556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass BinaryConditionalOperator : public AbstractConditionalOperator { 297656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall enum { COMMON, COND, LHS, RHS, NUM_SUBEXPRS }; 297756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 297856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the common condition/left-hand-side expression, which will be 297956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated as the opaque value 298056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the condition, expressed in terms of the opaque value 298156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the left-hand-side, expressed in terms of the opaque value 298256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the right-hand-side 298356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Stmt *SubExprs[NUM_SUBEXPRS]; 298456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *OpaqueValue; 298556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 298656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 298756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 298856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall BinaryConditionalOperator(Expr *common, OpaqueValueExpr *opaqueValue, 298956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *cond, Expr *lhs, Expr *rhs, 299056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, SourceLocation cloc, 299156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 299256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, t, VK, OK, 299356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isTypeDependent() || rhs->isTypeDependent()), 299456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isValueDependent() || rhs->isValueDependent()), 2995561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (common->isInstantiationDependent() || 2996561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 299756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->containsUnexpandedParameterPack() || 299856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 299956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall qloc, cloc), 300056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue(opaqueValue) { 300156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COMMON] = common; 300256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COND] = cond; 300356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[LHS] = lhs; 300456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[RHS] = rhs; 300556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 300656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue->setSourceExpr(common); 300756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 300856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 300956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Build an empty conditional operator. 301056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit BinaryConditionalOperator(EmptyShell Empty) 301156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, Empty) { } 301256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 301356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCommon - Return the common expression, written to the 301456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// left of the condition. The opaque value will be bound to the 301556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// result of this expression. 301656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCommon() const { return cast<Expr>(SubExprs[COMMON]); } 301756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 301856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getOpaqueValue - Return the opaque value placeholder. 301956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *getOpaqueValue() const { return OpaqueValue; } 302056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 302156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCond - Return the condition expression; this is defined 302256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 302356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 302456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 302556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getTrueExpr - Return the subexpression which will be 302656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condition evaluates to true; this is defined 302756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 302856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { 302956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[LHS]); 303056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 303156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 303256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getFalseExpr - Return the subexpression which will be 303356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condnition evaluates to false; this is 303456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// defined in terms of the opaque value. 303556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const { 303656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[RHS]); 303756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 3038ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 303956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 304056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return SourceRange(getCommon()->getLocStart(), getFalseExpr()->getLocEnd()); 304156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 304256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 304356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == BinaryConditionalOperatorClass; 304456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 304556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const BinaryConditionalOperator *) { return true; } 304656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 304756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // Iterators 304856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { 304956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return child_range(SubExprs, SubExprs + NUM_SUBEXPRS); 305056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 305156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 305256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 305356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getCond() const { 305456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 305556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getCond(); 305656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getCond(); 305756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 305856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 305956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getTrueExpr() const { 306056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 306156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getTrueExpr(); 306256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getTrueExpr(); 306356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 306456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 306556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getFalseExpr() const { 306656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 306756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getFalseExpr(); 306856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getFalseExpr(); 306956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 307056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 30716481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 30726481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 30735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 3074ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *Label; 30755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3076ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelDecl *L, 30776481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 3078561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false, 3079561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 30802333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 30811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30827d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 30831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 30847d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 30857d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 30867d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 30877d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 30887d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 30897d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 30907d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 309163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 30925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 30935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 30941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3095ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *getLabel() const { return Label; } 3096ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void setLabel(LabelDecl *L) { Label = L; } 30977d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 30985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 30991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 31005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 31016481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 31021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31031237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 310463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 31055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3106ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3107ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 3108ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 3109ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 3110f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 3111f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 3112f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 3113ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 31145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 3115ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 3116ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 31172333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 3118561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // FIXME: Do we need to compute instantiation instantiation-dependence for 3119561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // statements? (ugh!) 3120d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 3121d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 3122f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 3123561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isDependentType(), false, false, false), 31242333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 31251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31266a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 31276a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 31286a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 31295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 31305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 31316a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 31326a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 313363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3134ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 3135ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 31361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3137026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 31386a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 3139026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 31406a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 31411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3142ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 31431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 3144ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 3145ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 31461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31471237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 314863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&SubStmt, &SubStmt+1); } 3149ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 3150ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3151d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 3152d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 3153d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 3154d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 3155d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 3156d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 3157d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 3158d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 3159d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 3160d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3161d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 3162d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 3163d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 3164d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 31655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 3166d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 3167d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3168d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 3169a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 31701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 3171bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor SourceLocation RP); 317294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 317394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 31741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 317594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 317694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 317794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 317894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 31791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 318094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 318194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 318294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 318363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3184d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 3185d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3186d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 31871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 3188d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3189d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 31901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3191d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 3192d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 3193d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 3194d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 31951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3196aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the array of expressions. 3197aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 3198ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3199d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 3200d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 3201d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 32025549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3203d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3204d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 3205d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 32065549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3207d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 32081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3209888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 321094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 3211dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 3212dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 3213a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith return getExpr(N+2)->EvaluateKnownConstInt(Ctx).getZExtValue(); 3214d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 32151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3216d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 321763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 321863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+NumExprs); 321963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3220d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 3221d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3222d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 32231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 3224d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 32257976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 32267976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 32277976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 32287976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 32297976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 32307976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 3231d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 32321237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 32335549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 3234d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 3235d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 3236f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 3237f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 3238ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 3239bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent, 3240561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 3241561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 3242561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 3243bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 3244bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->containsUnexpandedParameterPack() || 3245bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 32461237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 32471237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 32481237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 32491237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 32501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 32517976932a1c256d447316ffac58e9821417725e34Eli Friedman 325244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 325344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 325444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 32557976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 32567976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 32574ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isConditionTrue(const ASTContext &C) const; 32587976932a1c256d447316ffac58e9821417725e34Eli Friedman 32597976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 32607976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 32614ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad Expr *getChosenSubExpr(const ASTContext &C) const { 32627976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 32637976932a1c256d447316ffac58e9821417725e34Eli Friedman } 32647976932a1c256d447316ffac58e9821417725e34Eli Friedman 32655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 326644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 32675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 326844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 32695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 327044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 327144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 327244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 327344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 32741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 327544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 327644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 32771237c673c07f9d827129ba02720108816abde562Ted Kremenek 327863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3279d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 3280d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3281d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 32821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 3283d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3284d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 32851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32861237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 328763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 328863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 328963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3290d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 3291d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 32922d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 32932d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 32942d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 32952d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 32962d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 32972d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 32982d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 32992d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 33002d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 33012d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 33022d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 33031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 3304561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false, 3305561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 3306f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 33072d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 330844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 330944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 331044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 33112d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 33122d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 331344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 33142d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 331563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 33162d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 33172d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 33182d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 33191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 33202d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 33212d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 33221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33232d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 332463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 33252d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 33262d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 332774626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 33287c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 33295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 33302cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 33317c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 33327c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 33332cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 33342cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 3335f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 3336bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor t->isDependentType(), false, 3337561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (TInfo->getType()->isInstantiationDependentType() || 3338561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor e->isInstantiationDependent()), 3339bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (TInfo->getType()->containsUnexpandedParameterPack() || 3340bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor e->containsUnexpandedParameterPack())), 33412cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 33427c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 33437c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 33441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 334574626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 3346d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 3347d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 33485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 33495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 3350d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 3351d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 33522cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 33532cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 33542cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 3355d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 3356d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 33571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3358d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 3359d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 3360d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 336163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 33627c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 33631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 33647c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 33657c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 33667c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 33677c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 33681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33697c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 337063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 33717c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 33721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 33744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 33754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 33764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 33774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 33784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 33794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 33804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 33814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 3382196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 33834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 33844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 33854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 33864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 33874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 33884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 33894c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 33904c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 3391196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 33924c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 33934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 33944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 33954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 33964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 33974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 33984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 33993498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 34004c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 34014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 34024c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 3403196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 34044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 34054c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 34064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 34074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 34084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 34094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 341066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 3411ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 3412709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 3413709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 341466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 34151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 34174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 34184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 34194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 34204423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief Either: 34214423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes an array with more elements than 34224423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// there are initializers in the list, specifies an expression to be used 34234423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// for value initialization of the rest of the elements. 34244423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// Or 34254423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes a union, specifies which 34264423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// field within the union will be initialized. 34274423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis llvm::PointerUnion<Expr *, FieldDecl *> ArrayFillerOrUnionFieldInit; 34280bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3429a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 3430a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 3431a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 3432a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 343366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 3434709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 3435709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 3436ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 3437d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3438d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 3439709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 3440709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 34411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3442ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 34431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3444aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the set of initializers. 3445aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getInits() { return reinterpret_cast<Expr **>(InitExprs.data()); } 3446ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 344716c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 3448c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 34494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 345066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 34511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 345216c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 3453c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 34544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 345566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 34561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 3458c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 34599e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 34609e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 3461c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 3462fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 3463709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 34641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 34664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 34674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 34684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 34694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 34704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 34714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 34724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 34734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 34744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 34754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 34764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 34774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 34784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 3479fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// accommodate the new entry. 3480709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 3481c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 34824423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief If this initializer list initializes an array with more elements 34834423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// than there are initializers in the list, specifies an expression to be 34844423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// used for value initialization of the rest of the elements. 34854423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis Expr *getArrayFiller() { 34864423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<Expr *>(); 34874423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 34888cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getArrayFiller() const { 34898cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getArrayFiller(); 34908cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 34913e8dc2ac8926dfbebd8f2f6b74ceba4befccd4d2Argyrios Kyrtzidis void setArrayFiller(Expr *filler); 34924423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 349321f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// \brief Return true if this is an array initializer and its array "filler" 349421f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// has been set. 349521f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis bool hasArrayFiller() const { return getArrayFiller(); } 349621f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis 34970bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 34980bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 34990bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 35000bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 35010bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 35020bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 35034423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis FieldDecl *getInitializedFieldInUnion() { 35044423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<FieldDecl *>(); 35054423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 35068cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const FieldDecl *getInitializedFieldInUnion() const { 35078cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getInitializedFieldInUnion(); 35088cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 35094423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis void setInitializedFieldInUnion(FieldDecl *FD) { 35104423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis ArrayFillerOrUnionFieldInit = FD; 35114423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 35120bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3513c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3514c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3515b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3516b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3517b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 35181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3519d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3520d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3521d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 352287fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 352387fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 35244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 35254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 35264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 35271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 35284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 35294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 35304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3531a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 35321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 3533d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 3534a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3535a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 353663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 3537c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 353866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 35391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 354066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 354166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 35421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 354366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 354463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 354563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall if (InitExprs.empty()) return child_range(); 354663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&InitExprs[0], &InitExprs[0] + InitExprs.size()); 354763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 35481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3549709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 35508111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3551709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 35528111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 35531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3554ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 35558111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3556ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 35578111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3558ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 35598111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3560ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 35618111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 35624423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 35634423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtReader; 35644423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtWriter; 356566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 356666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 356705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 356805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 356905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 357005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 357105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 357205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 357305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 35741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 357505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 357605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 357705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 357805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 357905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 358005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 358105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 358205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 358305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 358405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 358505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 358605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 358705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3588ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3589ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3590ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3591ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3592ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 359305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 359405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 359505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 359605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3597eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 359805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3599eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 360005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 360105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 360205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 360305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3604ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 3605ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 3606ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 3607ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 360805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 360905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 361005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 361105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 361205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3613ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3614319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3615ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3616eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 36179ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 36189ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 361905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3620d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3621d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3622d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 3623d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 362405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 362505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 362605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 362705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 362805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 362905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 363005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 363105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 363205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 363305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 36341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 363505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 363605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 36371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 363805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 363905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 364005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 364105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 364205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 364305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 364405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 364505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 364605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 364705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 364805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 364905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 365005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 365105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 365205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 36531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 365405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 365505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 365605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 365705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 365805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 365905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 366005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 366105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 366205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 366305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 366405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 366505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 366605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 366705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 366805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 366905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 367005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 367105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 367205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 367305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 367405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 367505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 367605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 367705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 367805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3679ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3680ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 368105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 36821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 36831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 368405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 368505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 368605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 368705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 368805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 368905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 369005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 36911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 369205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 369305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 369405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 369505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 369605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 369705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 369805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 369905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 370005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 37011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 370205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 370305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 370405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 370505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 370605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 370705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 370805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 370905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 371005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 371105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 371205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 371305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3714b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth IdentifierInfo *getFieldName() const; 371505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3716b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth FieldDecl *getField() const { 371705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 371805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 371905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 372005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 372105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 372205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 372305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 372405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 372505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 372605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 372705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 372805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 372987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 373087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 373187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 373287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 373387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 373405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 373505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 373605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 373705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 373805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 373905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 374005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 374105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 374205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 374305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 374405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 374505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 374605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 374705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 374805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 374905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 375005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 375105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 375205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 375305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 375405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 375505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 37564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3757d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3758d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3759d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3760d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3761d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3762d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 37634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 37644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 37654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 37664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 37674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 37684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 376924f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceLocation getEndLocation() const { 377024f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return Kind == FieldDesignator ? getFieldLoc() : getRBracketLoc(); 377124f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 377224f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getSourceRange() const { 377324f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return SourceRange(getStartLocation(), getEndLocation()); 377424f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 377505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 377605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 37771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 377805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 377905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 378005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3781eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 378205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3783d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3784d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 378505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 378605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 378705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 378805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 3789b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef Designator *designators_iterator; 3790ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 37911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 37921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3793ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 379405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3795b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef const Designator *const_designators_iterator; 3796b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_begin() const { return Designators; } 3797b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_end() const { 3798b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return Designators + NumDesignators; 3799b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3800b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 3801cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 3802cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 3803cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 3804cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 3805cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3806cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 3807cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 3808cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3809cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 3810b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef std::reverse_iterator<const_designators_iterator> 3811b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator; 3812b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rbegin() const { 3813b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_end()); 3814b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3815b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rend() const { 3816b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_begin()); 3817b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3818b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 3819711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3820711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3821ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setDesignators(ASTContext &C, const Designator *Desigs, 3822319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3823d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 382405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 382505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 382605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 382705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 382805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 382905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 383005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3831d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 383205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 383305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3834eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3835eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3836d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 383705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 383805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 38391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 384005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 384105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 384205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 384305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 384405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 384505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 384605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3847d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3848d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3849d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3850d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3851d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3852d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3853d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3854d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3855d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3856d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3857d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3858d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3859d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3860d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3861d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3862d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3863d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3864d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3865d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3866d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3867ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3868ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3869319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3870ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3871ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 387224f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getDesignatorsSourceRange() const; 387324f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara 387463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 387505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 387605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 38771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 387805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 387905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 388005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 388105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 388263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 388363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = reinterpret_cast<Stmt**>(this + 1); 388463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumSubExprs); 388563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 38863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 38873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 38883498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 38893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 38903498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 38911a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 38921a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 38933498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 38941a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 38951a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 38961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 38973498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 38981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 3899f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 3900561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false, ty->isInstantiationDependentType(), false) { } 39013498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3902d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3903d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3904d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3905d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 39061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 39073498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 39083498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 39093498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 39103498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 391163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 39123498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 39133498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 39143498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 39153498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 391663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 391705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 391805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 39192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 39202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 39212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 39222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 39232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 39242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 39252ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 39261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 39270d9106fc97cde979a995e26b18bcd2643f8afb55Manuel Klimek unsigned numexprs, SourceLocation rparenloc, QualType T); 39282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 39292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 393037bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 39311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39322ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 39331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 39352ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 39362ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 39372ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 39381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 39402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 39412ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 39422ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 39432ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 394483ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 39451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39462ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 39472ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 39482ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 394963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 39502ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 39511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 39522ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 39531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 39542ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 39552ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 39561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39572ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 395863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 395963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&Exprs[0], &Exprs[0]+NumExprs); 396063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 396137bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 396260adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 39633397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 39642ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 39652ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 39661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3967ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// \brief Represents a C11 generic selection. 3968f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3969ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// A generic selection (C11 6.5.1.1) contains an unevaluated controlling 3970f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression, followed by one or more generic associations. Each generic 3971f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association specifies a type name and an expression, or "default" and an 3972f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression (in which case it is known as a default generic association). 3973f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The type and value of the generic selection are identical to those of its 3974f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// result expression, which is defined as the expression in the generic 3975f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association with a type name that is compatible with the type of the 3976f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// controlling expression, or the expression in the default generic association 3977f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// if no types are compatible. For example: 3978f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3979f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @code 3980f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// _Generic(X, double: 1, float: 2, default: 3) 3981f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @endcode 3982f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3983f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The above expression evaluates to 1 if 1.0 is substituted for X, 2 if 1.0f 3984f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// or 3 if "hello". 3985f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3986f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// As an extension, generic selections are allowed in C++, where the following 3987f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// additional semantics apply: 3988f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3989f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Any generic selection whose controlling expression is type-dependent or 3990f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which names a dependent type in its association list is result-dependent, 3991f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which means that the choice of result expression is dependent. 3992f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Result-dependent generic associations are both type- and value-dependent. 3993f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourneclass GenericSelectionExpr : public Expr { 3994f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne enum { CONTROLLING, END_EXPR }; 3995f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes; 3996f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Stmt **SubExprs; 3997f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, ResultIndex; 3998f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, DefaultLoc, RParenLoc; 3999f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4000f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbournepublic: 4001f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 4002f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 4003f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 4004f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 4005f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 4006f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack, 4007f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned ResultIndex); 4008f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4009f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// This constructor is used in the result-dependent case. 4010f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 4011f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 4012f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 4013f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 4014f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 4015f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack); 4016f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4017f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne explicit GenericSelectionExpr(EmptyShell Empty) 4018f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne : Expr(GenericSelectionExprClass, Empty) { } 4019f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4020f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getNumAssocs() const { return NumAssocs; } 4021f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4022f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getGenericLoc() const { return GenericLoc; } 4023f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getDefaultLoc() const { return DefaultLoc; } 4024f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getRParenLoc() const { return RParenLoc; } 4025f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4026f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getAssocExpr(unsigned i) const { 4027f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[END_EXPR+i]); 4028f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4029f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getAssocExpr(unsigned i) { return cast<Expr>(SubExprs[END_EXPR+i]); } 4030f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4031f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) const { 4032f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return AssocTypes[i]; 4033f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4034f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) { return AssocTypes[i]; } 4035f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4036f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne QualType getAssocType(unsigned i) const { 4037f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne if (const TypeSourceInfo *TS = getAssocTypeSourceInfo(i)) 4038f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return TS->getType(); 4039f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne else 4040f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return QualType(); 4041f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4042f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4043f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getControllingExpr() const { 4044f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[CONTROLLING]); 4045f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4046f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getControllingExpr() { return cast<Expr>(SubExprs[CONTROLLING]); } 4047f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4048f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// Whether this generic selection is result-dependent. 4049f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool isResultDependent() const { return ResultIndex == -1U; } 4050f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4051f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The zero-based index of the result expression's generic association in 4052f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// the generic selection's association list. Defined only if the 4053f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4054f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getResultIndex() const { 4055f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne assert(!isResultDependent() && "Generic selection is result-dependent"); 4056f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return ResultIndex; 4057f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4058f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4059f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The generic selection's result expression. Defined only if the 4060f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4061f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getResultExpr() const { return getAssocExpr(getResultIndex()); } 4062f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getResultExpr() { return getAssocExpr(getResultIndex()); } 4063f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4064f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceRange getSourceRange() const { 4065f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return SourceRange(GenericLoc, RParenLoc); 4066f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4067f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const Stmt *T) { 4068f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return T->getStmtClass() == GenericSelectionExprClass; 4069f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4070f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const GenericSelectionExpr *) { return true; } 4071f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4072f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne child_range children() { 4073f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return child_range(SubExprs, SubExprs+END_EXPR+NumAssocs); 4074f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4075f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4076f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne friend class ASTStmtReader; 4077f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne}; 4078f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 40794eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 40804eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 40814eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 40824eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 4083a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4084a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 4085a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 4086a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 4087a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 408873525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 408973525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 409073525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 4091a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 4092a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 4093d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 4094a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 4095a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 4096f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 4097f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 40980943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 40990943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 4100bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 4101561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 4102bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 4103d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 41041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4105d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 4106d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 4107d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 4108d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4109a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 4110a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 4111d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 4112d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4113d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 4114d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 4115d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4116d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 4117d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 4118d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4119a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 4120a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 41211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4122a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 4123a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 4124a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 41251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4126a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 4127a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 4128686775deca8b8685eb90801495880e3abdd844c2Chris Lattner void getEncodedElementAccess(SmallVectorImpl<unsigned> &Elts) const; 41291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 413063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 4131a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 4132a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 41331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41342140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 41352140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 41362140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 41371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 41391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 4140a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 4141a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 41421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4143a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 414463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 4145a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 4146a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4147a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 414856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 41499c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 41504eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 415156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 415256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 41534eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 4154469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall BlockExpr(BlockDecl *BD, QualType ty) 4155f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 4156ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie ty->isDependentType(), false, 4157561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // FIXME: Check for instantiate-dependence in the statement? 4158561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ty->isInstantiationDependentType(), 4159561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 4160469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall TheBlock(BD) {} 41619c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 416284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 416384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 416484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 4165d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 416656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 416784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 416884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 416956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 417056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 417156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 417256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 41739c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 417463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 417556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 41769c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 41779c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 417856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 417956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 418056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 41811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 41829c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 41834eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 41844eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 41851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41864eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 418763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 41884eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 41891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41906b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// BlockDeclRefExpr - A reference to a local variable declared in an 41916b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// enclosing scope. 41924eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 41936b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *D; 41944eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 41957d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 41967d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 41974eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 41986b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall BlockDeclRefExpr(VarDecl *d, QualType t, ExprValueKind VK, 41996b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall SourceLocation l, bool ByRef, bool constAdded = false); 420094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 420194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 420294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 420394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 420494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 42051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42066b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *getDecl() { return D; } 42076b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const VarDecl *getDecl() const { return D; } 42086b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall void setDecl(VarDecl *VD) { D = VD; } 420994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 421094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 421194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 421294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 421363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 42141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42154eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 421694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 42171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42187d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 42197d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 4220ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 42211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 42221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 42234eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 42244eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 42251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42264eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 422763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 42284eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 42294eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 423061eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// AsTypeExpr - Clang builtin function __builtin_astype [OpenCL 6.2.4.2] 423161eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// This AST node provides support for reinterpreting a type to another 423261eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// type of the same size. 4233379010addb0e84fd0fbc37c829baf658958521bdJohn McCallclass AsTypeExpr : public Expr { // Should this be an ExplicitCastExpr? 423461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerprivate: 4235379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Stmt *SrcExpr; 423661eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, RParenLoc; 4237379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4238379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTReader; 4239379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTStmtReader; 4240379010addb0e84fd0fbc37c829baf658958521bdJohn McCall explicit AsTypeExpr(EmptyShell Empty) : Expr(AsTypeExprClass, Empty) {} 4241ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 424261eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerpublic: 424361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner AsTypeExpr(Expr* SrcExpr, QualType DstType, 424461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner ExprValueKind VK, ExprObjectKind OK, 424561eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, SourceLocation RParenLoc) 4246ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Expr(AsTypeExprClass, DstType, VK, OK, 4247561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType(), 4248561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType() || SrcExpr->isValueDependent(), 4249561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->isInstantiationDependentType() || 4250561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->isInstantiationDependent()), 4251561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->containsUnexpandedParameterPack() || 4252561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->containsUnexpandedParameterPack())), 4253379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SrcExpr(SrcExpr), BuiltinLoc(BuiltinLoc), RParenLoc(RParenLoc) {} 4254ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 425561eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner /// getSrcExpr - Return the Expr to be converted. 4256379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Expr *getSrcExpr() const { return cast<Expr>(SrcExpr); } 4257379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4258379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getBuiltinLoc - Return the location of the __builtin_astype token. 4259379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4260379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4261379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getRParenLoc - Return the location of final right parenthesis. 4262379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getRParenLoc() const { return RParenLoc; } 4263ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 42647b33c2b3908b178511ccaace8cacb5e5b14552a9Nick Lewycky SourceRange getSourceRange() const { 426561eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner return SourceRange(BuiltinLoc, RParenLoc); 426661eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner } 4267ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 426861eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner static bool classof(const Stmt *T) { 4269ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return T->getStmtClass() == AsTypeExprClass; 427061eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner } 427161eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner static bool classof(const AsTypeExpr *) { return true; } 4272ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 427361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner // Iterators 4274379010addb0e84fd0fbc37c829baf658958521bdJohn McCall child_range children() { return child_range(&SrcExpr, &SrcExpr+1); } 427561eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner}; 4276276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 42774b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr - An expression which accesses a pseudo-object 42784b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// l-value. A pseudo-object is an abstract object, accesses to which 42794b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// are translated to calls. The pseudo-object expression has a 42804b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// syntactic form, which shows how the expression was actually 42814b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// written in the source code, and a semantic form, which is a series 42824b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// of expressions to be executed in order which detail how the 42834b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// operation is actually evaluated. Optionally, one of the semantic 42844b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// forms may also provide a result value for the expression. 42854b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 42864b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// If any of the semantic-form expressions is an OpaqueValueExpr, 42874b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// that OVE is required to have a source expression, and it is bound 42884b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// to the result of that source expression. Such OVEs may appear 42894b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// only in subsequent semantic-form expressions and as 42904b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// sub-expressions of the syntactic form. 42914b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 42924b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr should be used only when an operation can be 42934b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// usefully described in terms of fairly simple rewrite rules on 42944b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// objects and functions that are meant to be used by end-developers. 42954b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// For example, under the Itanium ABI, dynamic casts are implemented 42964b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// as a call to a runtime function called __dynamic_cast; using this 42974b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// class to describe that would be inappropriate because that call is 42984b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// not really part of the user-visible semantics, and instead the 42994b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// cast is properly reflected in the AST and IR-generation has been 43004b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// taught to generate the call as necessary. In contrast, an 43014b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Objective-C property access is semantically defined to be 43024b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// equivalent to a particular message send, and this is very much 43034b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// part of the user model. The name of this class encourages this 43044b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// modelling design. 43054b9c2d235fb9449e249d74f48ecfec601650de93John McCallclass PseudoObjectExpr : public Expr { 43064b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.NumSubExprs - The number of sub-expressions. 43074b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Always at least two, because the first sub-expression is the 43084b9c2d235fb9449e249d74f48ecfec601650de93John McCall // syntactic form. 43094b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43104b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.ResultIndex - The index of the 43114b9c2d235fb9449e249d74f48ecfec601650de93John McCall // sub-expression holding the result. 0 means the result is void, 43124b9c2d235fb9449e249d74f48ecfec601650de93John McCall // which is unambiguous because it's the index of the syntactic 43134b9c2d235fb9449e249d74f48ecfec601650de93John McCall // form. Note that this is therefore 1 higher than the value passed 43144b9c2d235fb9449e249d74f48ecfec601650de93John McCall // in to Create, which is an index within the semantic forms. 43154b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Note also that ASTStmtWriter assumes this encoding. 43164b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43174b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr **getSubExprsBuffer() { return reinterpret_cast<Expr**>(this + 1); } 43184b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr * const *getSubExprsBuffer() const { 43194b9c2d235fb9449e249d74f48ecfec601650de93John McCall return reinterpret_cast<const Expr * const *>(this + 1); 43204b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43214b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43224b9c2d235fb9449e249d74f48ecfec601650de93John McCall friend class ASTStmtReader; 43234b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43244b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(QualType type, ExprValueKind VK, 43254b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *syntactic, ArrayRef<Expr*> semantic, 43264b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 43274b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43284b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(EmptyShell shell, unsigned numSemanticExprs); 43294b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43304b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSubExprs() const { 43314b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.NumSubExprs; 43324b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43334b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43344b9c2d235fb9449e249d74f48ecfec601650de93John McCallpublic: 43354b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// NoResult - A value for the result index indicating that there is 43364b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// no semantic result. 43374b9c2d235fb9449e249d74f48ecfec601650de93John McCall enum { NoResult = ~0U }; 43384b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43394b9c2d235fb9449e249d74f48ecfec601650de93John McCall static PseudoObjectExpr *Create(ASTContext &Context, Expr *syntactic, 43404b9c2d235fb9449e249d74f48ecfec601650de93John McCall ArrayRef<Expr*> semantic, 43414b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 43424b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43434b9c2d235fb9449e249d74f48ecfec601650de93John McCall static PseudoObjectExpr *Create(ASTContext &Context, EmptyShell shell, 43444b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned numSemanticExprs); 43454b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43464b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the syntactic form of this expression, i.e. the 43474b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expression it actually looks like. Likely to be expressed in 43484b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// terms of OpaqueValueExprs bound in the semantic form. 43494b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSyntacticForm() { return getSubExprsBuffer()[0]; } 43504b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSyntacticForm() const { return getSubExprsBuffer()[0]; } 43514b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43524b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the index of the result-bearing expression into the semantics 43534b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expressions, or PseudoObjectExpr::NoResult if there is none. 43544b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getResultExprIndex() const { 43554b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) return NoResult; 43564b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.ResultIndex - 1; 43574b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43584b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43594b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the result-bearing expression, or null if there is none. 43604b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getResultExpr() { 43614b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) 43624b9c2d235fb9449e249d74f48ecfec601650de93John McCall return 0; 43634b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[PseudoObjectExprBits.ResultIndex]; 43644b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43654b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getResultExpr() const { 43664b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getResultExpr(); 43674b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43684b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43694b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSemanticExprs() const { return getNumSubExprs() - 1; } 43704b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43714b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef Expr * const *semantics_iterator; 43724b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef const Expr * const *const_semantics_iterator; 43734b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_begin() { 43744b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 43754b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43764b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_begin() const { 43774b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 43784b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43794b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_end() { 43804b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 43814b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43824b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_end() const { 43834b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 43844b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43854b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSemanticExpr(unsigned index) { 43864b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(index + 1 < getNumSubExprs()); 43874b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[index + 1]; 43884b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43894b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSemanticExpr(unsigned index) const { 43904b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getSemanticExpr(index); 43914b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43924b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43934b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceLocation getExprLoc() const { 43944b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSyntacticForm()->getExprLoc(); 43954b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43964b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceRange getSourceRange() const { 43974b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSyntacticForm()->getSourceRange(); 43984b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43994b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44004b9c2d235fb9449e249d74f48ecfec601650de93John McCall child_range children() { 44014b9c2d235fb9449e249d74f48ecfec601650de93John McCall Stmt **cs = reinterpret_cast<Stmt**>(getSubExprsBuffer()); 44024b9c2d235fb9449e249d74f48ecfec601650de93John McCall return child_range(cs, cs + getNumSubExprs()); 44034b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44044b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44054b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool classof(const Stmt *T) { 44064b9c2d235fb9449e249d74f48ecfec601650de93John McCall return T->getStmtClass() == PseudoObjectExprClass; 44074b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44084b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool classof(const PseudoObjectExpr *) { return true; } 44094b9c2d235fb9449e249d74f48ecfec601650de93John McCall}; 44104b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4411276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// AtomicExpr - Variadic atomic builtins: __atomic_exchange, __atomic_fetch_*, 4412276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// __atomic_load, __atomic_store, and __atomic_compare_exchange_*, for the 4413276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// similarly-named C++0x instructions. All of these instructions take one 4414276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// primary pointer and at least one memory order. 4415276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanclass AtomicExpr : public Expr { 4416276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 4417276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman enum AtomicOp { Load, Store, CmpXchgStrong, CmpXchgWeak, Xchg, 44187a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall Add, Sub, And, Or, Xor, Init }; 4419276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanprivate: 4420276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman enum { PTR, ORDER, VAL1, ORDER_FAIL, VAL2, END_EXPR }; 4421276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Stmt* SubExprs[END_EXPR]; 4422276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned NumSubExprs; 4423276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation BuiltinLoc, RParenLoc; 4424276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp Op; 4425276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4426276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 4427dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman AtomicExpr(SourceLocation BLoc, Expr **args, unsigned nexpr, QualType t, 4428dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman AtomicOp op, SourceLocation RP); 4429276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4430276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman /// \brief Build an empty AtomicExpr. 4431276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman explicit AtomicExpr(EmptyShell Empty) : Expr(AtomicExprClass, Empty) { } 4432276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4433276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getPtr() const { 4434276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[PTR]); 4435276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4436276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setPtr(Expr *E) { 4437276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[PTR] = E; 4438276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4439276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrder() const { 4440276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER]); 4441276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4442276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setOrder(Expr *E) { 4443276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[ORDER] = E; 4444276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4445276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal1() const { 44467a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall if (Op == Init) 44477a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall return cast<Expr>(SubExprs[ORDER]); 4448276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs >= 3); 4449276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL1]); 4450276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4451276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setVal1(Expr *E) { 44527a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall if (Op == Init) { 44537a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall SubExprs[ORDER] = E; 44547a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall return; 44557a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall } 4456276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs >= 3); 4457276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[VAL1] = E; 4458276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4459276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrderFail() const { 4460276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4461276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER_FAIL]); 4462276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4463276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setOrderFail(Expr *E) { 4464276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4465276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[ORDER_FAIL] = E; 4466276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4467276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal2() const { 4468276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4469276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL2]); 4470276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4471276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setVal2(Expr *E) { 4472276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4473276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[VAL2] = E; 4474276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4475276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4476276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp getOp() const { return Op; } 4477276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setOp(AtomicOp op) { Op = op; } 4478276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned getNumSubExprs() { return NumSubExprs; } 4479276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setNumSubExprs(unsigned num) { NumSubExprs = num; } 4480276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4481dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 4482dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman 4483276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isVolatile() const { 4484276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return getPtr()->getType()->getPointeeType().isVolatileQualified(); 4485276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4486276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4487276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isCmpXChg() const { 4488276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return getOp() == AtomicExpr::CmpXchgStrong || 4489276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman getOp() == AtomicExpr::CmpXchgWeak; 4490276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4491276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4492276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4493276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 4494276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4495276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getRParenLoc() const { return RParenLoc; } 4496276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setRParenLoc(SourceLocation L) { RParenLoc = L; } 4497276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4498276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceRange getSourceRange() const { 4499276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return SourceRange(BuiltinLoc, RParenLoc); 4500276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4501276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman static bool classof(const Stmt *T) { 4502276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return T->getStmtClass() == AtomicExprClass; 4503276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4504276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman static bool classof(const AtomicExpr *) { return true; } 4505276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4506276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman // Iterators 4507276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman child_range children() { 4508276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return child_range(SubExprs, SubExprs+NumSubExprs); 4509276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4510276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman}; 45115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 45125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 45135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 4514