Expr.h revision bb8a897f350f46475f36140480e82289f6baa020
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. 418282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// 419282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// Note: This does not perform the implicit conversions required by C++11 420282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// [expr.const]p5. 421590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 422590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 4235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 424f48fdb0937e67f691393f9ffdf75653e5128ea13Richard Smith bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const; 4250e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith 42670488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith /// isCXX98IntegralConstantExpr - Return true if this expression is an 42770488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith /// integral constant expression in C++98. Can only be used in C++. 42870488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith bool isCXX98IntegralConstantExpr(ASTContext &Ctx) const; 42970488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith 4304c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// isCXX11ConstantExpr - Return true if this expression is a constant 4314c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// expression in C++11. Can only be used in C++. 432282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// 433282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// Note: This does not perform the implicit conversions required by C++11 434282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// [expr.const]p5. 4354c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith bool isCXX11ConstantExpr(ASTContext &Ctx, APValue *Result = 0, 4364c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith SourceLocation *Loc = 0) const; 4374c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith 438745f5147e065900267c85a5568785a1991d4838fRichard Smith /// isPotentialConstantExpr - Return true if this function's definition 439745f5147e065900267c85a5568785a1991d4838fRichard Smith /// might be usable in a constant expression in C++11, if it were marked 440745f5147e065900267c85a5568785a1991d4838fRichard Smith /// constexpr. Return false if the function can never produce a constant 441745f5147e065900267c85a5568785a1991d4838fRichard Smith /// expression, along with diagnostics describing why not. 442745f5147e065900267c85a5568785a1991d4838fRichard Smith static bool isPotentialConstantExpr(const FunctionDecl *FD, 443745f5147e065900267c85a5568785a1991d4838fRichard Smith llvm::SmallVectorImpl< 444745f5147e065900267c85a5568785a1991d4838fRichard Smith PartialDiagnosticAt> &Diags); 445745f5147e065900267c85a5568785a1991d4838fRichard Smith 4460e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// isConstantInitializer - Returns true if this expression can be emitted to 4470e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// IR as a constant, and thus can be used as a constant initializer in C. 4484204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 4491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4501e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalStatus is a struct with detailed info about an evaluation in progress. 4511e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalStatus { 45294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 45394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 45494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 4551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 456dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// Diag - If this is non-null, it will be filled in with a stack of notes 457dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// indicating why evaluation failed (or why it failed to produce a constant 458dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression). 459dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// If the expression is unfoldable, the notes will indicate why it's not 460dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// foldable. If the expression is foldable, but not a constant expression, 461dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// the notes will describes why it isn't a constant expression. If the 462dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression *is* a constant expression, no notes will be produced. 463dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith llvm::SmallVectorImpl<PartialDiagnosticAt> *Diag; 464dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith 465dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith EvalStatus() : HasSideEffects(false), Diag(0) {} 466e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 467e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 468e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 469e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 470e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 471e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 47294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 47394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 4741e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalResult is a struct with detailed info about an evaluated expression. 4751e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalResult : EvalStatus { 4761e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// Val - This is the value the expression can be folded to. 4771e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith APValue Val; 4781e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 4791e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // isGlobalLValue - Return true if the evaluated lvalue expression 4801e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // is global. 4811e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith bool isGlobalLValue() const; 4821e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith }; 4831e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 48451f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsRValue - Return true if this is a constant which we can fold to 48551f4708c00110940ca3f337961915f2ca1668375Richard Smith /// an rvalue using any crazy technique (that has nothing to do with language 48651f4708c00110940ca3f337961915f2ca1668375Richard Smith /// standards) that we want to, even if the expression has side-effects. If 48751f4708c00110940ca3f337961915f2ca1668375Richard Smith /// this function returns true, it returns the folded constant in Result. If 48851f4708c00110940ca3f337961915f2ca1668375Richard Smith /// the expression is a glvalue, an lvalue-to-rvalue conversion will be 48951f4708c00110940ca3f337961915f2ca1668375Richard Smith /// applied. 49051f4708c00110940ca3f337961915f2ca1668375Richard Smith bool EvaluateAsRValue(EvalResult &Result, const ASTContext &Ctx) const; 4915b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 492cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 493cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 494a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// any crazy technique that we want to, even if the expression has 495a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// side-effects. 4964ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsBooleanCondition(bool &Result, const ASTContext &Ctx) const; 497cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 49880d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith enum SideEffectsKind { SE_NoSideEffects, SE_AllowSideEffects }; 49980d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith 500a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// EvaluateAsInt - Return true if this is a constant which we can fold and 50180d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith /// convert to an integer, using any crazy technique that we want to. 50280d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith bool EvaluateAsInt(llvm::APSInt &Result, const ASTContext &Ctx, 50380d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith SideEffectsKind AllowSideEffects = SE_NoSideEffects) const; 504a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith 50551f4708c00110940ca3f337961915f2ca1668375Richard Smith /// isEvaluatable - Call EvaluateAsRValue to see if this expression can be 50651f4708c00110940ca3f337961915f2ca1668375Richard Smith /// constant folded without side-effects, but discard the result. 5074ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isEvaluatable(const ASTContext &Ctx) const; 508c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 5096ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 51051f4708c00110940ca3f337961915f2ca1668375Richard Smith /// which must be evaluated each time and must not be optimized away 5116ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 5126ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 5134ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool HasSideEffects(const ASTContext &Ctx) const; 51451f4708c00110940ca3f337961915f2ca1668375Richard Smith 51525d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor /// \brief Determine whether this expression involves a call to any function 51625d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor /// that is not trivial. 51725d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor bool hasNonTrivialCall(ASTContext &Ctx); 51825d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor 51951f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateKnownConstInt - Call EvaluateAsRValue and return the folded 52051f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. This must be called on an expression that constant folds to an 52151f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. 522a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith llvm::APSInt EvaluateKnownConstInt(const ASTContext &Ctx) const; 52351fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 52451f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsLValue - Evaluate an expression to see if we can fold it to an 52551f4708c00110940ca3f337961915f2ca1668375Richard Smith /// lvalue with link time known address, with no side-effects. 5264ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsLValue(EvalResult &Result, const ASTContext &Ctx) const; 5271b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 528099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// EvaluateAsInitializer - Evaluate an expression as if it were the 529099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// initializer of the given declaration. Returns true if the initializer 530099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// can be folded to a constant, and produces any relevant notes. In C++11, 531099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// notes will be produced if the expression is not a constant expression. 532099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith bool EvaluateAsInitializer(APValue &Result, const ASTContext &Ctx, 533099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith const VarDecl *VD, 534099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith llvm::SmallVectorImpl<PartialDiagnosticAt> &Notes) const; 535099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith 53682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Enumeration used to describe the kind of Null pointer constant 53782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// returned from \c isNullPointerConstant(). 53882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth enum NullPointerConstantKind { 53982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is not a Null pointer constant. 54082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_NotNull = 0, 54182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 54282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a Null pointer constant built from a zero integer. 54382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_ZeroInteger, 54482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 54582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a C++0X nullptr. 54682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_CXX0X_nullptr, 54782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 54882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a GNU-style __null constant. 54982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_GNUNull 55082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth }; 55182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 552ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 553ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 554ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 555ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 556ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 557ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 558ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 559ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 560ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 561ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 562ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 563ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 564ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 565ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 566ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 56782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to 56882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// a Null pointer constant. The return value can further distinguish the 56982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// kind of NULL pointer constant that was detected. 57082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantKind isNullPointerConstant( 57182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth ASTContext &Ctx, 57282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantValueDependence NPC) const; 573efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 57444baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 5751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 576102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 5771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 57811ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 57911ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 58011ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 581864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// \brief Given an expression of bound-member type, find the type 582864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// of the member. Returns null if this is an *overloaded* bound 583864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// member expression. 584864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall static QualType findBoundMemberType(const Expr *expr); 585864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 586369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Result type of CanThrow(). 587369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl enum CanThrowResult { 588369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Cannot, 589369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Dependent, 590369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Can 591369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl }; 592369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Test if this expression, if evaluated, might throw, according to 593369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// the rules of C++ [expr.unary.noexcept]. 594369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CanThrowResult CanThrow(ASTContext &C) const; 595369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl 59691a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// IgnoreImpCasts - Skip past any implicit casts which might 59791a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// surround this expression. Only skips ImplicitCastExprs. 59891a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall Expr *IgnoreImpCasts(); 59991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 6007e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// IgnoreImplicit - Skip past any implicit AST nodes which might 6017e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// surround this expression. 6027e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall Expr *IgnoreImplicit() { return cast<Expr>(Stmt::IgnoreImplicit()); } 6037e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 6044e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 6051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 6064e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 6074e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 6082b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 60956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 61056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 61127c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 61256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 6131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 614ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off 615ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// any ParenExpr or ImplicitCastExprs, returning their operand. 6162fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 6172fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 6182f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// IgnoreConversionOperator - Ignore conversion operator. If this Expr is a 6192f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// call to a conversion operator, return the argument. 6202f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg Expr *IgnoreConversionOperator(); 6212f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 6222f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg const Expr *IgnoreConversionOperator() const { 6232f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg return const_cast<Expr*>(this)->IgnoreConversionOperator(); 6242f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg } 6252f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 6264d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const Expr *IgnoreParenImpCasts() const { 6274d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 6284d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 629ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 630f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 631f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 632f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall Expr *IgnoreParenLValueCasts(); 633ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 634f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const Expr *IgnoreParenLValueCasts() const { 635f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 636f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 6374d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 638ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 639ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 640ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 641ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 6421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6436eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 6446eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 6456eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 646ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// by semantic analysis for function calls, object constructions, etc. in 6476eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 6486eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 6496eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 6506eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 651ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 652558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 653558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 654558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 6552f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 65675e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Whether this expression is an implicit reference to 'this' in C++. 65775e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitCXXThis() const; 65891a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 65991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall const Expr *IgnoreImpCasts() const { 66091a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return const_cast<Expr*>(this)->IgnoreImpCasts(); 66191a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall } 6622b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 6634e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 6644e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 66556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 66656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 66756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 668ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 669ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 670ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 6711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 67213a140caba448a66ffcc5ff0d32a87d6e4f4ad3fAhmed Charles static bool hasAnyTypeDependentArguments(llvm::ArrayRef<Expr *> Exprs); 673898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 6741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 6761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 6795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6825549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 6835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 6845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 68656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 68756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// fixed type and value class. These don't correspond to concrete 68856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// syntax; instead they're used to express operations (usually copy 68956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operations) on values whose source is generally obvious from 69056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// context. 69156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass OpaqueValueExpr : public Expr { 69256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 69356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *SourceExpr; 69456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation Loc; 695ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 69656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 697ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK, 69897df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor ExprObjectKind OK = OK_Ordinary, 69997df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor Expr *SourceExpr = 0) 70056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 70197df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor T->isDependentType(), 70297df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor T->isDependentType() || 70397df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor (SourceExpr && SourceExpr->isValueDependent()), 704561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isInstantiationDependentType(), 705ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie false), 70697df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor SourceExpr(SourceExpr), Loc(Loc) { 70756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 70856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 70956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Given an expression which invokes a copy constructor --- i.e. a 71056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// CXXConstructExpr, possibly wrapped in an ExprWithCleanups --- 71156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// find the OpaqueValueExpr that's the source of the construction. 71256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static const OpaqueValueExpr *findInCopyConstruct(const Expr *expr); 71356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 71456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit OpaqueValueExpr(EmptyShell Empty) 71556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, Empty) { } 71656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 71756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Retrieve the location of this expression. 71856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getLocation() const { return Loc; } 719ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 72056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 72156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getSourceRange(); 72256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 72356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 72456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getExprLoc() const { 72556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getExprLoc(); 72656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 72756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 72856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 72956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { return child_range(); } 73056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 73156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression of an opaque value expression is the 73256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which originally generated the value. This is 73356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// provided as a convenience for analyses that don't wish to 73456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// precisely model the execution behavior of the program. 73556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 73656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression is typically set when building the 73756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which binds the opaque value expression in the first 73856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// place. 73956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getSourceExpr() const { return SourceExpr; } 74056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 74156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 74256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == OpaqueValueExprClass; 74356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 74456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const OpaqueValueExpr *) { return true; } 74556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 74656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 747cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// \brief A reference to a declared variable, function, enum, etc. 748cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// [C99 6.5.1p2] 749cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 750cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// This encodes all the information about how a declaration is referenced 751cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// within an expression. 752cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 753cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// There are several optional constructs attached to DeclRefExprs only when 754cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// they apply in order to conserve memory. These are laid out past the end of 755cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// the object, and flags in the DeclRefExprBitfield track whether they exist: 756cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 757cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// DeclRefExprBits.HasQualifier: 758cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has a C++ 759cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// nested-name-specifier. 7603aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// DeclRefExprBits.HasFoundDecl: 7613aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// Specifies when this declaration reference expression has a record of 7623aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// a NamedDecl (different from the referenced ValueDecl) which was found 7633aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// during name lookup and/or overload resolution. 764e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara/// DeclRefExprBits.HasTemplateKWAndArgsInfo: 765cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has an explicit 766e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara/// C++ template keyword and/or template argument list. 7675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 768cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The declaration that we are referencing. 769cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *D; 7702577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 771cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The location of the declaration name itself. 7725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 7739e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 774cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief Provides source/type location info for the declaration name 775cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// embedded in D. 7762577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 7772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 7786857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 7796857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc &getInternalQualifierLoc() { 7807e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth assert(hasQualifier()); 7816857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return *reinterpret_cast<NestedNameSpecifierLoc *>(this + 1); 782a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 783cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth 7846857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 7856857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth const NestedNameSpecifierLoc &getInternalQualifierLoc() const { 7866857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalQualifierLoc(); 787a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 788096832c5ed5b9106fa177ebc148489760c3bc496John McCall 7893aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Test whether there is a distinct FoundDecl attached to the end of 7903aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// this DRE. 7913aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool hasFoundDecl() const { return DeclRefExprBits.HasFoundDecl; } 7923aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 7933aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 7943aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// reference occured. 7953aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *&getInternalFoundDecl() { 7963aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth assert(hasFoundDecl()); 7973aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 7983aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(&getInternalQualifierLoc() + 1); 7993aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(this + 1); 8003aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 8013aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8023aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 8033aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// reference occured. 8043aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getInternalFoundDecl() const { 8053aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalFoundDecl(); 8063aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 8073aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8087e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth DeclRefExpr(NestedNameSpecifierLoc QualifierLoc, 809e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 8102577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 8113aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD, 8122577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 813f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 8142577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 815663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 816663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 817663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 8187e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8190da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 8200da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 8210da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 8229e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 8235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8245b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor DeclRefExpr(ValueDecl *D, QualType T, ExprValueKind VK, SourceLocation L, 8255b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor const DeclarationNameLoc &LocInfo = DeclarationNameLoc()) 826561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(DeclRefExprClass, T, VK, OK_Ordinary, false, false, false, false), 8275b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor D(D), Loc(L), DNLoc(LocInfo) { 828cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth DeclRefExprBits.HasQualifier = 0; 829e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara DeclRefExprBits.HasTemplateKWAndArgsInfo = 0; 8303aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth DeclRefExprBits.HasFoundDecl = 0; 8317cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = 0; 8320da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 8330da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 8341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 835a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 83640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 837e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 838dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 839a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 840f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 8413aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD = 0, 8420da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 843663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 8442577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 84540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 846e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 8472577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 8482577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 849f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 8503aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD = 0, 8512577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 8522577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 853663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 854663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 8553aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasQualifier, 8563aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasFoundDecl, 857e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool HasTemplateKWAndArgsInfo, 858def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor unsigned NumTemplateArgs); 8597e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 860cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *getDecl() { return D; } 861cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth const ValueDecl *getDecl() const { return D; } 862cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth void setDecl(ValueDecl *NewD) { D = NewD; } 863904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 8642577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 8652577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 8662577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 8672577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 8689e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 8690b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 87063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 8711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 872a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 873a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 874cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth bool hasQualifier() const { return DeclRefExprBits.HasQualifier; } 8757e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8767e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 877a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 878a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 879a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 880a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 8817e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8826857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc().getNestedNameSpecifier(); 883a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 88440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 8857e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 88640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// that precedes the name, with source-location information. 88740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 88840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 88940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 8907e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8916857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc(); 89240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 89340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 8943aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Get the NamedDecl through which this reference occured. 8953aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// 8963aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// This Decl may be different from the ValueDecl actually referred to in the 8973aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// presence of using declarations, etc. It always returns non-NULL, and may 8983aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// simple return the ValueDecl when appropriate. 8993aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getFoundDecl() { 9003aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 9013aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 9023aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 9033aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Get the NamedDecl through which this reference occurred. 9043aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// See non-const variant. 9053aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth const NamedDecl *getFoundDecl() const { 9063aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 9073aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 9083aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 909e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKWAndArgsInfo() const { 910e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return DeclRefExprBits.HasTemplateKWAndArgsInfo; 911096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 9127e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 913e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 914e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() { 915e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) 916e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return 0; 917e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 9183aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasFoundDecl()) 919e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 9203aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalFoundDecl() + 1); 9213aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 9223aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 923e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 9243aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalQualifierLoc() + 1); 9257e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 926e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>(this + 1); 927e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 928e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 929e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 930e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() const { 931e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return const_cast<DeclRefExpr*>(this)->getTemplateKWAndArgsInfo(); 932e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 933e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 934e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the template keyword preceding 935e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// this name, if any. 936e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getTemplateKeywordLoc() const { 937e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 938e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->getTemplateKeywordLoc(); 939e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 940e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 941e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the left angle bracket starting the 942e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the name, if any. 943e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getLAngleLoc() const { 944e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 945e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->LAngleLoc; 946e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 947e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 948e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the right angle bracket ending the 949e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the name, if any. 950e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getRAngleLoc() const { 951e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 952e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->RAngleLoc; 953e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 954e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 955e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether the name in this declaration reference 956e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// was preceded by the template keyword. 957e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); } 958e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 959e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether this declaration reference was followed by an 960e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list. 961e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); } 962e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 963e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the explicit template argument list that followed the 964e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// member template name. 965e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 966e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara assert(hasExplicitTemplateArgs()); 967e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return *getTemplateKWAndArgsInfo(); 968096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 9697e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 970096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 971096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 972b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 973096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 974a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 975d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 976096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 977096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 978096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 979e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateArgumentListInfo *getOptionalExplicitTemplateArgs() const { 980096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 981096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 982096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 9837e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 984d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 985d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 986d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 987096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 988096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 989d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 9907e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 991a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 992a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 993833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 994096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 995a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 9967e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 997096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 998a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 9997e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1000a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1001a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 1002a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 1003096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 1004a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 10057e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1006096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 1007a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 10087e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 10097cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this expression refers to a function that 10107cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 10117cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 10127cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return DeclRefExprBits.HadMultipleCandidates; 10137cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 10147cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 10157cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a function that was resolved from an overloaded set having size 10167cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 10177cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 10187cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = V; 10197cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 10207cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 10211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 102299e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 10251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 102677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 102763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10287e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 102960adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 10303397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1033d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 1034d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 1035227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 1036227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 1037227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 1038227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 1039848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 1040848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 1041848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 1042848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 1043227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 10441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1045227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 1046227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 1047227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 1048227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 10491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 1050f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 1051ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie type->isDependentType(), type->isDependentType(), 1052561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType(), 1053bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 1054f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 10551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 105617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 10571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 105817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 105917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1060227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 106117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 106217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 106317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 106417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 106517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1066848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 10673a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 106863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 1069227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 10701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 1072227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 1073d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 10741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 107577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 107663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 1077227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 1078227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 10799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 10809996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 10819996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 10829996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 10839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 10849996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 10859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 10869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 10879996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 10889996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 10899996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 10909996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 10919996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 109291219326471798c7d3b02dc48691581580338969Benjamin Kramer unsigned BitWidth; 10939996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10949996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 10959996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10969996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 10979996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 10989996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10999996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 110091219326471798c7d3b02dc48691581580338969Benjamin Kramer APNumericStorage() : VAL(0), BitWidth(0) { } 11019996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11029996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 11039996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 11049996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 11059996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 11069996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 11079996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 11089996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 11099996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 11109996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 11119996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 111291219326471798c7d3b02dc48691581580338969Benjamin Kramerclass APIntStorage : private APNumericStorage { 1113ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 1114ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie llvm::APInt getValue() const { return getIntValue(); } 11159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 11169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 11179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 1118bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramerclass APFloatStorage : private APNumericStorage { 1119ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 112031dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka llvm::APFloat getValue(bool IsIEEE) const { 112131dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka return llvm::APFloat(getIntValue(), IsIEEE); 112231dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka } 11239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 11249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 11259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 11269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 11279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 112891219326471798c7d3b02dc48691581580338969Benjamin Kramerclass IntegerLiteral : public Expr, public APIntStorage { 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 11309996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 11329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 11339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 11349996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 11389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral(ASTContext &C, const llvm::APInt &V, 11399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l) 1140bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(IntegerLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1141561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1142f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l) { 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 11441dd986dff9ddfbec687975700770bb377988e9edRichard Trieu assert(V.getBitWidth() == C.getIntWidth(type) && 11451dd986dff9ddfbec687975700770bb377988e9edRichard Trieu "Integer type is not the correct size for constant."); 11469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1148a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 11491dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new integer literal with value 'V' and type 'type'. 11501dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param type - either IntTy, LongTy, LongLongTy, UnsignedIntTy, 11511dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// UnsignedLongTy, or UnsignedLongLongTy which should match the size of V 11521dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param V - the value that the returned integer literal contains. 11539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 11549996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 11551dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new empty integer literal. 11569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 11570b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 115863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1160313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 1161313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 1162313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 11630b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 11640b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 11651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 11691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 117077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 117163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 11755cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 11765cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum CharacterKind { 11775cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 11785cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 11795cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 11805cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 11815cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 11825cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 11835cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 11885cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor CharacterLiteral(unsigned value, CharacterKind kind, QualType type, 11895cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation l) 1190bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1191561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1192bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer Value(value), Loc(l) { 1193bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer CharacterLiteralBits.Kind = kind; 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11950b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 11960b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 11970b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 11980b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1199018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 1200bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer CharacterKind getKind() const { 1201bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer return static_cast<CharacterKind>(CharacterLiteralBits.Kind); 1202bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 12031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 120463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 12051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12080b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 1209bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setKind(CharacterKind kind) { CharacterLiteralBits.Kind = kind; } 12100b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 12110b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 12121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 121677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 121777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 121863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1221bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramerclass FloatingLiteral : public Expr, private APFloatStorage { 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 12249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 1225720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 1226bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(FloatingLiteralClass, Type, VK_RValue, OK_Ordinary, false, false, 1227bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer false, false), Loc(L) { 1228bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer FloatingLiteralBits.IsIEEE = 1229bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer &C.getTargetInfo().getLongDoubleFormat() == &llvm::APFloat::IEEEquad; 1230bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer FloatingLiteralBits.IsExact = isexact; 12319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 12329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 123417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 123531dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka explicit FloatingLiteral(ASTContext &C, EmptyShell Empty) 1236bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer : Expr(FloatingLiteralClass, Empty) { 1237bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer FloatingLiteralBits.IsIEEE = 1238bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer &C.getTargetInfo().getLongDoubleFormat() == &llvm::APFloat::IEEEquad; 1239bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer FloatingLiteralBits.IsExact = false; 1240bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 124117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 12429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 12439996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 12449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 12459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 12469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 1247bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer llvm::APFloat getValue() const { 1248bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer return APFloatStorage::getValue(FloatingLiteralBits.IsIEEE); 1249bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 12509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 1251bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer APFloatStorage::setValue(C, Val); 12529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 125317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1254bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer bool isExact() const { return FloatingLiteralBits.IsExact; } 1255bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setExact(bool E) { FloatingLiteralBits.IsExact = E; } 1256c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 1257da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 1258da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 1259da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 1260da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 12611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 126217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 126317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 126417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 126563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 12695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 12711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 127277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 127363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 12745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12765d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 12775d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 12785d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 12795d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 12805d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 12815d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 12825549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 12835d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 12845d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 1285bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false, 1286561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1287f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 12881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1289cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 12901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 1291cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 1292cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 12935549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 12945549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1295cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1296cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 129763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return Val->getSourceRange(); } 12981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 13005d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 13015d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 13021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13035d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 130463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 13055d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 13065d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1307e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1308e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 1309e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1310a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1311c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1312c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1313690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1314690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 13158bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1316690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1317c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1318c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1319c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1320c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1321c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1322c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 13235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 13245cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 13255cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum StringKind { 13265cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 13275cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 13285cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF8, 13295cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 13305cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 13315cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 13325cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 13335cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 13343e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson friend class ASTStmtReader; 13353e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson 133664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman union { 133764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const char *asChar; 133864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint16_t *asUInt16; 133964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint32_t *asUInt32; 134064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } StrData; 134164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned Length; 13420840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned CharByteWidth : 4; 13435cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor unsigned Kind : 3; 13440840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned IsPascal : 1; 13450840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned NumConcatenated; 1346726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 13472085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1348f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1349561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false, false, 1350561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false) {} 13511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 135264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman static int mapCharByteWidth(TargetInfo const &target,StringKind k); 135364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 13545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 13552085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 13562085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 13575cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor static StringLiteral *Create(ASTContext &C, StringRef Str, StringKind Kind, 135865aa6885818d4b4eea2e5a9d12085b2398148662Jay Foad bool Pascal, QualType Ty, 1359a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 13602085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 13612085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 13625cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor static StringLiteral *Create(ASTContext &C, StringRef Str, StringKind Kind, 13635cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool Pascal, QualType Ty, 13645cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation Loc) { 13655cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor return Create(C, Str, Kind, Pascal, Ty, &Loc, 1); 13662085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1367a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1368673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1369673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1370673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1371686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef getString() const { 137264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert(CharByteWidth==1 137364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman && "This function is used in places that assume strings use char"); 137464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(StrData.asChar, getByteLength()); 137564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 137664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 137764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman /// Allow clients that need the byte representation, such as ASTWriterStmt 137864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman /// ::VisitStringLiteral(), access. 137964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringRef getBytes() const { 1380e91e0ae772004912285ccc3848b27208da8c045bChris Lattner // FIXME: StringRef may not be the right type to use as a result for this. 1381e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 1) 1382e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StringRef(StrData.asChar, getByteLength()); 1383e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 4) 138464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(reinterpret_cast<const char*>(StrData.asUInt32), 138564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman getByteLength()); 1386e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(CharByteWidth == 2 && "unsupported CharByteWidth"); 1387e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StringRef(reinterpret_cast<const char*>(StrData.asUInt16), 1388e91e0ae772004912285ccc3848b27208da8c045bChris Lattner getByteLength()); 1389b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 13902f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 139164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman uint32_t getCodeUnit(size_t i) const { 1392e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(i < Length && "out of bounds access"); 1393e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 1) 139464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return static_cast<unsigned char>(StrData.asChar[i]); 1395e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 4) 1396e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StrData.asUInt32[i]; 1397e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(CharByteWidth == 2 && "unsupported CharByteWidth"); 1398e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StrData.asUInt16[i]; 139964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 140064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 140164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getByteLength() const { return CharByteWidth*Length; } 140264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getLength() const { return Length; } 140364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getCharByteWidth() const { return CharByteWidth; } 1404673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1405673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 140664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman void setString(ASTContext &C, StringRef Str, 140764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringKind Kind, bool IsPascal); 1408673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 14095cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor StringKind getKind() const { return static_cast<StringKind>(Kind); } 1410ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1411ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 14125cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isAscii() const { return Kind == Ascii; } 14135cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isWide() const { return Kind == Wide; } 14145cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF8() const { return Kind == UTF8; } 14155cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF16() const { return Kind == UTF16; } 14165cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF32() const { return Kind == UTF32; } 14173e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool isPascal() const { return IsPascal; } 14185cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 14198d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1420686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef Str = getString(); 1421b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1422b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 142333fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 142433fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 142533fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1426ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1427726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1428726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1429726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 14301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1431726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1432726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1433726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1434726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 14351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1436673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1437673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1438673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 1439ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 144008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 144108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 144208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 144308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 144408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 144508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 144608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 144708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 144808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 144908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1450673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1451b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1452b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1453b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 14545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 14561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 14575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 14605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 14621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 146377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 146463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 14655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 14685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 14695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 14715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 14725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1474898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1475f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 1476bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->isTypeDependent(), val->isValueDependent(), 1477561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor val->isInstantiationDependent(), 1478bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->containsUnexpandedParameterPack()), 1479898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 14801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1481c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 14821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1483c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1484c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 14855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 14865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1487c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1488c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 148963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(L, R); } 14905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1491313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1492313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1493c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1494313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1495313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1496313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1497c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1498313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 14991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 15015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 15031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 150477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 150563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 15065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15090518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 15100518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 15115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1512dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1513dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1514dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1515dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1516dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1517dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1518dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 15195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 15205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15215baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 15225baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 15235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 15240799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 15255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 15260799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 15271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 15285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1529f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1530f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1531f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1532de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 1533bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->isValueDependent(), 1534ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (input->isInstantiationDependent() || 1535561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType()), 1536bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->containsUnexpandedParameterPack()), 15370799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 15385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15390b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 15401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 15412de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 15420b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15430799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 15440b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 15450b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 15470b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 15480b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 15505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 15510b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 15520b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 15542085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 15552de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 15562085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 15575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1558cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 15592085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 15602de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 15612085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 15625a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 15630799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 15640799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 15653c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15663c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementOp(Opcode Op) { 15673c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreInc || Op == UO_PostInc; 15683c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15692de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 15703c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementOp(getOpcode()); 15713c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15723c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15733c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isDecrementOp(Opcode Op) { 15743c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreDec || Op == UO_PostDec; 15752de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15763c3b7f90a863af43fa63043d396553ecf205351cJohn McCall bool isDecrementOp() const { 15773c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isDecrementOp(getOpcode()); 15783c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15793c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15803c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementDecrementOp(Opcode Op) { return Op <= UO_PreDec; } 15812de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 15823c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementDecrementOp(getOpcode()); 15832de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15843c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15852de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 15862de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 15872de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15880799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 15891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 15915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 15925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 15935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1594bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1595bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1596bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1597bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1598bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1599bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1600bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1601bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 160263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 16035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 16045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 16055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 16065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 16075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 160863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return Loc; } 16091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 16125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 16141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 161577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 161663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 16175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 16208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 16218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 16228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 16238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1624ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// double d; 16258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 16268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 16278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 16288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 16298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 16308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1631ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 16328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 16338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 16348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 16358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 16368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 16378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 16388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 16398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1640cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 16418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1642cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 16438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1644cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1645cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1646cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1647cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1648cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 16498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 16508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 16518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 16528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1653ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 16558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1656ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 16588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1659ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - An unsigned index into the array of Expr*'s stored after this node 16608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 16618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 16628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 16638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1664ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - A CXXBaseSpecifier*, for references that look at a field in a 1665cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 16668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1667ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 16698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1670ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 16718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 16728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1673ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1675ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 16768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1677ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 16788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1679ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 16818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 16828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1683ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 16848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1685cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1686cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1687cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1688cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1689ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1691ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie Kind getKind() const { 16928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 16938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1694ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 16968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 16978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 16988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 16998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 17008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 17038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 17048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1705cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 17068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1707ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 17098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 17108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1711ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1712cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1713cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1714cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1715ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1716cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1717ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 17198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 17208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 17218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1722ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// contains the location of the period (if there is one) and the 17238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 172406dec892b5300b43263d25c5476b506c9d6cfbadAbramo Bagnara SourceRange getSourceRange() const { return Range; } 17258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 17268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1728ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 17308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 17318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 17328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 17338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 17348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 17358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1736ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1737ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfExpr(ASTContext &C, QualType type, 17388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1739ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode* compsPtr, unsigned numComps, 17408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 17418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 17428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 17448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1745ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 17468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1748ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1749ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie static OffsetOfExpr *Create(ASTContext &C, QualType type, 1750ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1751ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode* compsPtr, unsigned numComps, 17528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 17538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 17548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1755ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie static OffsetOfExpr *CreateEmpty(ASTContext &C, 17568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 17578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 17598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 17608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 17618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 17638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 17648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1765ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 17678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 17688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 17708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 17718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1772ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17738cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const OffsetOfNode &getComponent(unsigned Idx) const { 17748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 17758cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return reinterpret_cast<const OffsetOfNode *> (this + 1)[Idx]; 17768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 17798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 17808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 17818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1782ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 17848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 17858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 17888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 17898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 17908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 17918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17928cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getIndexExpr(unsigned Idx) const { 17938cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<OffsetOfExpr*>(this)->getIndexExpr(Idx); 17948cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 17958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 17978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 17988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 17998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 18008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1801ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 18038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 18048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 180663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 18078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 18088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 18118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 18128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 18158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 181763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 181863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = 181963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall reinterpret_cast<Stmt**>(reinterpret_cast<OffsetOfNode*>(this + 1) 182063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall + NumComps); 182163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumExprs); 182263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 18238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 18248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1825f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated) 1826f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// expression operand. Used for sizeof/alignof (C99 6.5.3.4) and 1827f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// vec_step (OpenCL 1.1 6.11.12). 1828f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourneclass UnaryExprOrTypeTraitExpr : public Expr { 1829d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1830a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1831d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1832d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 18335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 183442602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 18355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1836f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, TypeSourceInfo *TInfo, 1837f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1838f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1839f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1840ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 18412850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1842bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->isDependentType(), 1843561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor TInfo->getType()->isInstantiationDependentType(), 1844bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->containsUnexpandedParameterPack()), 1845bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer OpLoc(op), RParenLoc(rp) { 1846bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.Kind = ExprKind; 1847bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = true; 1848a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1849ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1850ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 1851f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, Expr *E, 1852f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1853f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1854f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1855ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1856ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1857bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->isTypeDependent(), 1858561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor E->isInstantiationDependent(), 1859bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->containsUnexpandedParameterPack()), 1860bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer OpLoc(op), RParenLoc(rp) { 1861bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.Kind = ExprKind; 1862bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = false; 1863ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1864d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 18650518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 18660b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 1867f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne explicit UnaryExprOrTypeTraitExpr(EmptyShell Empty) 1868f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne : Expr(UnaryExprOrTypeTraitExprClass, Empty) { } 18690b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1870f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTrait getKind() const { 1871bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer return static_cast<UnaryExprOrTypeTrait>(UnaryExprOrTypeTraitExprBits.Kind); 1872f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne } 1873bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setKind(UnaryExprOrTypeTrait K) { UnaryExprOrTypeTraitExprBits.Kind = K;} 18740b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1875bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer bool isArgumentType() const { return UnaryExprOrTypeTraitExprBits.IsType; } 18760518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 18775ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 18785ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1879a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 18800518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 18815ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 18820518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1883caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 18840518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1885d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 18860518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1887caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1888f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return const_cast<UnaryExprOrTypeTraitExpr*>(this)->getArgumentExpr(); 1889caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 18900b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1891bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setArgument(Expr *E) { 1892bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer Argument.Ex = E; 1893bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = false; 1894bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 1895a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1896a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1897bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = true; 18980b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 18990b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 19000518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 19010518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 19020518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 19030518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 19040518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 19050518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 190676e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 19070b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 19080b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 19090b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 19100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1911866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 191263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 1913866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1914866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 19155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 1917f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return T->getStmtClass() == UnaryExprOrTypeTraitExprClass; 19185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1919f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne static bool classof(const UnaryExprOrTypeTraitExpr *) { return true; } 19201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 192177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 192263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children(); 19235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 19265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 19275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 19285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 19305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 193177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 19321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 19335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 19345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 19352324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 1936f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 193773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 1938f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 19392850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 1940bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 1941561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 1942561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 1943bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 1944bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 19452850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 194673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 194773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 194873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 19491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1950cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1951cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1952cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1953cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 19542324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 19552324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 19562324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 19572324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 19582324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 195933fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 196033fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 196133fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 196233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 19635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 19645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1965cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1966cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 19675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 19685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1969cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 19701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 19725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 197377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 19741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 19765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 19772324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 19781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 19805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 19812324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 19821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 198377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 19845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 19851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 19861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 198763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 198877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 19895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1991026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1992cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1993cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 199463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 19955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 19971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 19985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 20001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 200177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 200263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 200363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 200463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 20055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 20065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2008b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 20091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 2010b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 20111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 2012b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 2013b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 20145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 2015cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne enum { FN=0, PREARGS_START=1 }; 20165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 20175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 20185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 20191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2020b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 2021cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne // These versions of the constructor are for derived classes. 2022cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext& C, StmtClass SC, Expr *fn, unsigned NumPreArgs, 2023cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **args, unsigned numargs, QualType t, ExprValueKind VK, 2024cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SourceLocation rparenloc); 2025cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext &C, StmtClass SC, unsigned NumPreArgs, EmptyShell Empty); 2026cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 2027cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Stmt *getPreArg(unsigned i) { 2028cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2029cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 2030cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2031cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const Stmt *getPreArg(unsigned i) const { 2032cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2033cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 2034cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2035cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne void setPreArg(unsigned i, Stmt *PreArg) { 2036cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2037cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[PREARGS_START+i] = PreArg; 2038cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2039cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 2040cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne unsigned getNumPreArgs() const { return CallExprBits.NumPreArgs; } 204142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 20425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 20431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 2044f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 20451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20461f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 2047ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 20481f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 20495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 20505549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 205118b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 2052a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 2053d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 2054d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 2055d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 2056d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 2057d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 2058a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 2059a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 2060bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 2061bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 2062bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 2063a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 20645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 20655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 20671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2068aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the call arguments. 2069cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **getArgs() { 2070cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return reinterpret_cast<Expr **>(SubExprs+getNumPreArgs()+PREARGS_START); 2071cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2072d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith const Expr *const *getArgs() const { 2073d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith return const_cast<CallExpr*>(this)->getArgs(); 2074d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith } 2075ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 20765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 20775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 20785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2079cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 20805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 20825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2083cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 20845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2086934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 2087934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 2088934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 2089cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[Arg+getNumPreArgs()+PREARGS_START] = ArgExpr; 2090934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 20911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2092d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 2093d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 2094d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 20958189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 20961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 20985549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 20991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2100cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_begin() { return SubExprs+PREARGS_START+getNumPreArgs(); } 2101cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_end() { 2102cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2103cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2104cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_begin() const { 2105cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs(); 2106cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2107cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_end() const { 2108cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2109cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 21101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 21125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 21135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 21145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2115cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 2116cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 2117180f47959a066795cc0f409433023af448bb0328Richard Smith unsigned isBuiltinCall() const; 21181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 21201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 21216dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 21226dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 21231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2124d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 21251f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2126866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 21272882eca5a184c78f793188083f6ce539740a5cf2John McCall SourceRange getSourceRange() const; 21281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21304bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 21314bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 21325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 213488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 213577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 213663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 213763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], 213863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall &SubExprs[0]+NumArgs+getNumPreArgs()+PREARGS_START); 213963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 21405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 21415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2142ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 21435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 21445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 21456bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 21466857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth struct MemberNameQualifier { 21476857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The nested-name-specifier that qualifies the name, including 21486857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// source-location information. 21496857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc QualifierLoc; 21506857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth 21516857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The DeclAccessPair through which the MemberDecl was found due to 21526857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// name qualifiers. 2153161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 21546bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 21556bb8017bb9e828d118e15e59d71c66bba323c364John McCall 2156ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 2157ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 21585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 21591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2160ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 2161ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 2162f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 21631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21642577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 21652577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 21662577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 21672577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 2168bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer /// MemberLoc - This is the location of the member name. 2169bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer SourceLocation MemberLoc; 2170bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer 2171ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 217283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 21731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 217483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 21756bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 21766bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 2177c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 21786bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 21791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2180e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief True if this member expression specified a template keyword 2181e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// and/or a template argument list explicitly, e.g., x->f<int>, 2182e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// x->template f, x->template f<int>. 2183e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// When true, an ASTTemplateKWAndArgsInfo structure and its 2184e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// TemplateArguments (if any) are allocated immediately after 2185e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// the MemberExpr or, if the member expression also has a qualifier, 2186e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// after the MemberNameQualifier structure. 2187e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool HasTemplateKWAndArgsInfo : 1; 21881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21897cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief True if this member expression refers to a method that 21907cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 21917cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool HadMultipleCandidates : 1; 21927cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 219383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 21946bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 21956bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 21966bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 219783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 219883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 219983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 22006bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 2201c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 2202c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 22031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2205f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2206f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 2207f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2208f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2209ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie base->isTypeDependent(), 2210561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isValueDependent(), 2211561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2212bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 2213bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer Base(base), MemberDecl(memberdecl), MemberDNLoc(NameInfo.getInfo()), 2214bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer MemberLoc(NameInfo.getLoc()), IsArrow(isarrow), 2215e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara HasQualifierOrFoundDecl(false), HasTemplateKWAndArgsInfo(false), 22167cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) { 22172577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 22182577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 22192577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 22202577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 22212577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 22222577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 2223e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // for constructors, destructors and conversion operators). 22242577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2225f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 2226f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2227f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2228bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 2229561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2230bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 2231bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer Base(base), MemberDecl(memberdecl), MemberDNLoc(), MemberLoc(l), 22322577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 2233e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara HasQualifierOrFoundDecl(false), HasTemplateKWAndArgsInfo(false), 22347cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) {} 2235510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 22361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 223740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 2238e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 2239161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 22402577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 2241d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 2242f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 22431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 224488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 22455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 224657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 224757e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 224857e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 224957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 225057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 2251f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 2252f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 22531f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 22546bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 2255161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 22566bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 2257161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 2258161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 22596bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 22606bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 22616bb8017bb9e828d118e15e59d71c66bba323c364John McCall 22621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 22630979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 22640979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 22656bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 22661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 226883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 226983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 22701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 22716bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 227283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 22731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 227440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc.getNestedNameSpecifier(); 227540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 227640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 2277ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// \brief If the member name was qualified, retrieves the 227840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// nested-name-specifier that precedes the member name, with source-location 227940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// information. 228040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 228140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 228240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 2283ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 228440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc; 228583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 2286c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 2287e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 2288e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() { 2289e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) 2290e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return 0; 2291e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2292e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasQualifierOrFoundDecl) 2293e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>(this + 1); 2294e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2295e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 2296e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara getMemberQualifier() + 1); 2297e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2298e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2299e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 2300e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() const { 2301e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return const_cast<MemberExpr*>(this)->getTemplateKWAndArgsInfo(); 2302e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2303e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2304e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the template keyword preceding 2305e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// the member name, if any. 2306e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getTemplateKeywordLoc() const { 2307e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2308e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->getTemplateKeywordLoc(); 2309e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2310e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2311e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the left angle bracket starting the 2312e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the member name, if any. 2313e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getLAngleLoc() const { 2314e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2315e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->LAngleLoc; 2316e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2317e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2318e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the right angle bracket ending the 2319e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the member name, if any. 2320e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getRAngleLoc() const { 2321e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2322e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->RAngleLoc; 2323c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2325e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// Determines whether the member name was preceded by the template keyword. 2326e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); } 2327e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2328e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether the member name was followed by an 2329e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list. 2330e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); } 2331e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2332d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 2333d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 2334d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 2335096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 2336096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 2337096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2338096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2339096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2340096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 2341096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 2342b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 2343e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara assert(hasExplicitTemplateArgs()); 2344e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return *getTemplateKWAndArgsInfo(); 2345096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2346096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2347096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2348096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 2349096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 2350b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 2351096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 2352096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2353096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2354096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 2355096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 2356096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 2357b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo *getOptionalExplicitTemplateArgs() const { 2358096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 2359096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 2360d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 2361ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 2362c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 2363c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 2364833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 2365e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasExplicitTemplateArgs()) 23661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 23671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2368096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 2369c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2371c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 2372c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 23731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 2374e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasExplicitTemplateArgs()) 23751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 23761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2377096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 2378c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23802577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 23812577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 23822577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 23832577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 23842577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 23852577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 23865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 23871f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 23881f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 2389ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 2390ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 2391026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 23921f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 23935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 239475e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor SourceRange getSourceRange() const; 2395ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 239663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return MemberLoc; } 23975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 239875e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Determine whether the base of this explicit is implicit. 239975e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitAccess() const { 240075e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor return getBase() && getBase()->isImplicitCXXThis(); 240175e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor } 24027cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 24037cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this member expression refers to a method that 24047cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 24057cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 24067cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return HadMultipleCandidates; 24077cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 24087cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 24097cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a method that was resolved from an overloaded set having size 24107cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 24117cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 24127cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates = V; 24137cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 24147cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 24151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 241683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 24175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 24191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24201237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 242163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 24224045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 24234045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 24244045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 24255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 2428aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 2429aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 24300fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 24310fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 24320fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 24330fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 24341d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 24351d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 24361d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 24373654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer /// The int part of the pair stores whether this expr is file scope. 24383654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer llvm::PointerIntPair<TypeSourceInfo *, 1, bool> TInfoAndScope; 24395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 2440aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 244142f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 2442f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 2443f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 2444ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie tinfo->getType()->isDependentType(), 2445bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->isValueDependent(), 2446561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (init->isInstantiationDependent() || 2447561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor tinfo->getType()->isInstantiationDependentType()), 2448bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->containsUnexpandedParameterPack()), 24493654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer LParenLoc(lparenloc), TInfoAndScope(tinfo, fileScope), Init(init) {} 24501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2451ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 2452ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 2453ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 2454ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 24555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 24565549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 2457ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 2458e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 24593654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer bool isFileScope() const { return TInfoAndScope.getInt(); } 24603654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer void setFileScope(bool FS) { TInfoAndScope.setInt(FS); } 2461ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 24620fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 2463ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2464ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 24653654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer TypeSourceInfo *getTypeSourceInfo() const { 24663654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer return TInfoAndScope.getPointer(); 24673654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer } 24683654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer void setTypeSourceInfo(TypeSourceInfo *tinfo) { 24693654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer TInfoAndScope.setPointer(tinfo); 24703654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer } 247142f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 247263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 24730fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 24740fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 24750fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 24760fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 247773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 24780fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 247973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2480aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 24811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2483aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 2484aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 24851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24861237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 248763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Init, &Init+1); } 2488aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2489aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 249049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 249149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 249249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 249349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 24940835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2495cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 24965baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 24971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2498cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 24990835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2500409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 25011d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall void CheckCastConsistency() const; 2502409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2503f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2504f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2505f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2506f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2507f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2508654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis void setBasePathSize(unsigned basePathSize) { 2509654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis CastExprBits.BasePathSize = basePathSize; 2510654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis assert(CastExprBits.BasePathSize == basePathSize && 2511654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis "basePathSize doesn't fit in bits of CastExprBits.BasePathSize!"); 2512654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis } 2513654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis 25140835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2515f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2516f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2517f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2518898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2519898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2520898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2521898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2522898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 2523bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType() || (op && op->isValueDependent()), 2524ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (ty->isInstantiationDependentType() || 2525561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (op && op->isInstantiationDependent())), 2526bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (ty->containsUnexpandedParameterPack() || 2527bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor op->containsUnexpandedParameterPack())), 25288e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2529daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 25308e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 2531654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 25321d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall#ifndef NDEBUG 2533daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 25341d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall#endif 2535f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 25361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2537087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2538f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 25398e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 2540654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 25418e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 25421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25430835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 25448e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 25458e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2546f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2547f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 25480835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 25490835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2550087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2551087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 25526eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 25536eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 25546eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 25556eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 25566eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 25576eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 25586eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 255941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2560f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2561f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 25628e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 25638e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2564f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2565f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2566f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2567f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2568f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2569f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 257041b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 25711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 25724bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 25734bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 25740835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 25750835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 25761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25770835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 257863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Op, &Op+1); } 25790835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 25800835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 258149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 258249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 258349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 258449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 258549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2586bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2587bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2588906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2589bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2590bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2591bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2592bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2593906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 25941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2595906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2596906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2597906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2598906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2599bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2600bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 26010835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2602906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2603f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 26045baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2605f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 26065baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 260790045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2608087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2609f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2610f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2611f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2612f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2613f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2614f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 26155baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2616f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 26175baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2618f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2619f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2620f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2621f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 26225baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2623f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2624f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2625087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 262663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 26270835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 26280835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 262990045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 26301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 263249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 263349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 263449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 263549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 263691a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCallinline Expr *Expr::IgnoreImpCasts() { 263791a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall Expr *e = this; 263891a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall while (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e)) 263991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall e = ice->getSubExpr(); 264091a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return e; 264191a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall} 264291a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 264349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 26441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 264549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 264649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 264749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 264849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 264949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 265049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 26515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 265249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 265349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 265449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 265549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 265649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2657906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2658906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 26590835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 26609d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 26619d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 26629d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 266349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 266449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2665f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2666f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2667f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2668f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 266949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2670db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2671f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2672f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2673db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 267449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 26759d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 26769d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 26779d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 26789d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 26799d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 268049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 268149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 26829d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 268349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 26841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26854bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 26864bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 268749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 268849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 268949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 269049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 26916eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 269249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 269349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 26946eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2695b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2696b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2697f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2698f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2699f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 270041b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2701f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 270241b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 270349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2704db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2705f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2706f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2707f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2708f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2709f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2710f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2711f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2712f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2713f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2714f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2715f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2716db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2717b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2718db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2719db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2720b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2721db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2722db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 272363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2724b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 27255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 27285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27296eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 27305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 27315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27323fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 27333fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 27343fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 27353fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 27363fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 27373fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 27383fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 27393fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 27403fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 27413fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 27423fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 27433fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 27443fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 27453fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 27463fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 27473fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 27483fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 27493fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 27505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 27515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 27525baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 27535baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 275417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 27550799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 27560799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 27570799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 275817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 27595549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 27601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 27611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 276217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2763f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 276417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2765f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2766898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 2767bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2768561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2769561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2770bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2771bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 2772898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 27731237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 27741237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 27751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 27765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 27775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2779db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 27801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 27812de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2782db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 27832def77399ab3088106a2d61372344f5b7104e1a2David Blaikie SourceLocation getExprLoc() const { return OpLoc; } 278417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2785db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2786db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 27870799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2788db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2789db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 27905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2791db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 27925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2793db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2794db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 279563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 27965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 27975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 28005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 28015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 28025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28030799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2804a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2805063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2806063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2807063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2808063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2809063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2810063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2811063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2812063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 28135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2814200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 28152de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 28162de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 28170799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 28182de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 28190799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2820aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 28212de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 28220799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2823f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 28242de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 28250799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2826f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 28272de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 28280799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 28291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28302de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 28310799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2832aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 28332de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 28340799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2835f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 28360e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isAssignmentOp(Opcode Opc) { 28370e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return Opc >= BO_Assign && Opc <= BO_OrAssign; 28380e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 28390e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); } 28400e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 28410e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isCompoundAssignmentOp(Opcode Opc) { 28422de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 28432de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 28440e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isCompoundAssignmentOp() const { 28450e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isCompoundAssignmentOp(getOpcode()); 28460e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 28474b9c2d235fb9449e249d74f48ecfec601650de93John McCall static Opcode getOpForCompoundAssignment(Opcode Opc) { 28484b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(isCompoundAssignmentOp(Opc)); 2849b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall if (Opc >= BO_AndAssign) 2850b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall return Opcode(unsigned(Opc) - BO_AndAssign + BO_And); 28514b9c2d235fb9449e249d74f48ecfec601650de93John McCall else 28524b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Opcode(unsigned(Opc) - BO_MulAssign + BO_Mul); 28534b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 28540e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 28550e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isShiftAssignOp(Opcode Opc) { 28562de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 28572de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 28580e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isShiftAssignOp() const { 28590e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isShiftAssignOp(getOpcode()); 28600e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 28611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 28634bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 28644bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 28655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 28671237c673c07f9d827129ba02720108816abde562Ted Kremenek 28681237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 286963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 287063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 287163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 28721237c673c07f9d827129ba02720108816abde562Ted Kremenek 28735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 287417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2875f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 28762333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 2877f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 28782333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 2879bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2880561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2881561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2882bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2883bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 28842333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 28851237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 28861237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 28875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2888ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 28891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 28902de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 28915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 28925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 28945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 2895ec5bc81fd55bfcc26fc4bde6d5e33113d94c2209Zhongxing Xu/// these operators, the operands are promoted, the arithmetic performed, an 28965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 28975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 28985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 28995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2900ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2901ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 29025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2903f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 2904f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2905f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 290617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 2907f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, true), 2908ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2909ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 29101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 29115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 29125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2914ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2915ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2916ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2917ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2918ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2919ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2920ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2921ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2922ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2923ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2924ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2925ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2926ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 29275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 29281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 29291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 29305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 29325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 293356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// AbstractConditionalOperator - An abstract base class for 293456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator and BinaryConditionalOperator. 293556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass AbstractConditionalOperator : public Expr { 293656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation QuestionLoc, ColonLoc; 293756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 293856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 293956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallprotected: 294056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, QualType T, 294156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprValueKind VK, ExprObjectKind OK, 2942561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor bool TD, bool VD, bool ID, 294356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool ContainsUnexpandedParameterPack, 294456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, 294556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation cloc) 2946561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(SC, T, VK, OK, TD, VD, ID, ContainsUnexpandedParameterPack), 294756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QuestionLoc(qloc), ColonLoc(cloc) {} 294856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 294956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, EmptyShell Empty) 295056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, Empty) { } 295156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 295256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 295356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getCond - Return the expression representing the condition for 295456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 295556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const; 295656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 295756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 295856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 295956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const; 296056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 296156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 296256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 296356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 296456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const; 296556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 296656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getQuestionLoc() const { return QuestionLoc; } 296756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getColonLoc() const { return ColonLoc; } 296856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 296956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 297056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == ConditionalOperatorClass || 297156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->getStmtClass() == BinaryConditionalOperatorClass; 297256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 297356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const AbstractConditionalOperator *) { return true; } 297456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 297556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 297656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator - The ?: ternary operator. The GNU "missing 297756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// middle" extension is a BinaryConditionalOperator. 297856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass ConditionalOperator : public AbstractConditionalOperator { 29791237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 29805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 298156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 298256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 29835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 298447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 298556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation CLoc, Expr *rhs, 29860943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 298756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, t, VK, OK, 2988898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2989898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2990898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 299156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (lhs->isTypeDependent() || rhs->isTypeDependent()), 299256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (cond->isValueDependent() || lhs->isValueDependent() || 299356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->isValueDependent()), 2994561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 2995561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 2996561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2997bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 299856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall lhs->containsUnexpandedParameterPack() || 299956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 300056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QLoc, CLoc) { 30011237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 30021237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 30031237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 30041237c673c07f9d827129ba02720108816abde562Ted Kremenek } 30055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3006ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 3007ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 300856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, Empty) { } 3009ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 3010395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 301156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 30125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 3013395a2abf0028968d85958610e393e067885dc14fTed Kremenek 301456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 301556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 301656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { return cast<Expr>(SubExprs[LHS]); } 30171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 301856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 301956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 302056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 30215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 3022ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 302356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 30245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 302547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 302663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 30275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 30285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 30291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 30301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 30315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 30325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 30331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30341237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 303563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 303663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 303763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 30385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 30395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 304056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// BinaryConditionalOperator - The GNU extension to the conditional 304156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operator which allows the middle operand to be omitted. 304256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// 304356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// This is a different expression kind on the assumption that almost 304456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// every client ends up needing to know that these are different. 304556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass BinaryConditionalOperator : public AbstractConditionalOperator { 304656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall enum { COMMON, COND, LHS, RHS, NUM_SUBEXPRS }; 304756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 304856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the common condition/left-hand-side expression, which will be 304956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated as the opaque value 305056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the condition, expressed in terms of the opaque value 305156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the left-hand-side, expressed in terms of the opaque value 305256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the right-hand-side 305356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Stmt *SubExprs[NUM_SUBEXPRS]; 305456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *OpaqueValue; 305556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 305656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 305756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 305856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall BinaryConditionalOperator(Expr *common, OpaqueValueExpr *opaqueValue, 305956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *cond, Expr *lhs, Expr *rhs, 306056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, SourceLocation cloc, 306156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 306256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, t, VK, OK, 306356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isTypeDependent() || rhs->isTypeDependent()), 306456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isValueDependent() || rhs->isValueDependent()), 3065561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (common->isInstantiationDependent() || 3066561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 306756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->containsUnexpandedParameterPack() || 306856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 306956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall qloc, cloc), 307056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue(opaqueValue) { 307156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COMMON] = common; 307256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COND] = cond; 307356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[LHS] = lhs; 307456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[RHS] = rhs; 307597df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor assert(OpaqueValue->getSourceExpr() == common && "Wrong opaque value"); 307656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 307756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 307856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Build an empty conditional operator. 307956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit BinaryConditionalOperator(EmptyShell Empty) 308056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, Empty) { } 308156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 308256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCommon - Return the common expression, written to the 308356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// left of the condition. The opaque value will be bound to the 308456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// result of this expression. 308556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCommon() const { return cast<Expr>(SubExprs[COMMON]); } 308656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 308756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getOpaqueValue - Return the opaque value placeholder. 308856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *getOpaqueValue() const { return OpaqueValue; } 308956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 309056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCond - Return the condition expression; this is defined 309156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 309256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 309356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 309456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getTrueExpr - Return the subexpression which will be 309556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condition evaluates to true; this is defined 309656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 309756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { 309856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[LHS]); 309956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 310056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 310156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getFalseExpr - Return the subexpression which will be 310256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condnition evaluates to false; this is 310356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// defined in terms of the opaque value. 310456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const { 310556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[RHS]); 310656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 3107ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 310856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 310956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return SourceRange(getCommon()->getLocStart(), getFalseExpr()->getLocEnd()); 311056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 311156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 311256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == BinaryConditionalOperatorClass; 311356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 311456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const BinaryConditionalOperator *) { return true; } 311556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 311656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // Iterators 311756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { 311856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return child_range(SubExprs, SubExprs + NUM_SUBEXPRS); 311956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 312056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 312156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 312256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getCond() const { 312356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 312456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getCond(); 312556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getCond(); 312656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 312756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 312856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getTrueExpr() const { 312956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 313056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getTrueExpr(); 313156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getTrueExpr(); 313256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 313356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 313456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getFalseExpr() const { 313556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 313656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getFalseExpr(); 313756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getFalseExpr(); 313856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 313956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 31406481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 31416481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 31425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 3143ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *Label; 31445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3145ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelDecl *L, 31466481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 3147561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false, 3148561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 31492333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 31501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31517d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 31521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 31537d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 31547d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 31557d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 31567d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 31577d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 31587d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 31597d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 316063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 31615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 31625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 31631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3164ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *getLabel() const { return Label; } 3165ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void setLabel(LabelDecl *L) { Label = L; } 31667d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 31675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 31681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 31695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 31706481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 31711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31721237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 317363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 31745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3175ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3176ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 3177ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 3178ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 3179f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 3180f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 3181f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 3182ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 31835549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 3184ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 3185ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 31862333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 3187561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // FIXME: Do we need to compute instantiation instantiation-dependence for 3188561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // statements? (ugh!) 3189d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 3190d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 3191f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 3192561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isDependentType(), false, false, false), 31932333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 31941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31956a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 31966a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 31976a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 31985549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 31995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 32006a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 32016a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 320263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3203ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 3204ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 32051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3206026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 32076a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 3208026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 32096a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 32101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3211ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 32121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 3213ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 3214ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 32151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32161237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 321763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&SubStmt, &SubStmt+1); } 3218ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 3219ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3220d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 3221d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 3222d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 3223d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 3224d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 3225d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 3226d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 3227d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 3228d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 3229d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3230d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 3231d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 3232d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 3233d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 32345549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 3235d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 3236d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3237d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 3238a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 32391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 3240bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor SourceLocation RP); 324194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 324294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 32431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 324494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 324594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 324694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 324794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 32481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 324994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 325094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 325194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 325263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3253d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 3254d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3255d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 32561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 3257d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3258d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 32591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3260d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 3261d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 3262d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 3263d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 32641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3265aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the array of expressions. 3266aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 3267ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3268d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 3269d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 3270d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 32715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3272d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3273d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 3274d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 32755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3276d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 32771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3278888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 327994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 3280dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 3281dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 3282a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith return getExpr(N+2)->EvaluateKnownConstInt(Ctx).getZExtValue(); 3283d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 32841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3285d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 328663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 328763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+NumExprs); 328863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3289d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 3290d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3291d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 32921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 3293d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 32947976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 32957976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 32967976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 32977976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 32987976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 32997976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 3300d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 33011237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 33025549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 3303d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 3304d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 3305f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 3306f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 3307ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 3308bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent, 3309561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 3310561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 3311561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 3312bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 3313bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->containsUnexpandedParameterPack() || 3314bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 33151237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 33161237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 33171237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 33181237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 33191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 33207976932a1c256d447316ffac58e9821417725e34Eli Friedman 332144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 332244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 332344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 33247976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 33257976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 33264ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isConditionTrue(const ASTContext &C) const; 33277976932a1c256d447316ffac58e9821417725e34Eli Friedman 33287976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 33297976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 33304ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad Expr *getChosenSubExpr(const ASTContext &C) const { 33317976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 33327976932a1c256d447316ffac58e9821417725e34Eli Friedman } 33337976932a1c256d447316ffac58e9821417725e34Eli Friedman 33345549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 333544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 33365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 333744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 33385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 333944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 334044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 334144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 334244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 33431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 334444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 334544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 33461237c673c07f9d827129ba02720108816abde562Ted Kremenek 334763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3348d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 3349d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3350d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 33511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 3352d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3353d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 33541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33551237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 335663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 335763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 335863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3359d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 3360d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 33612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 33622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 33632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 33642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 33652d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 33662d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 33672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 33682d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 33692d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 33702d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 33712d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 33721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 3373561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false, 3374561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 3375f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 33762d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 337744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 337844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 337944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 33802d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 33812d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 338244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 33832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 338463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 33852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 33862d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 33872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 33881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 33892d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 33902d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 33911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33922d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 339363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 33942d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 33952d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 339674626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 33977c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 33985549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 33992cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 34007c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 34017c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 34022cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 34032cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 3404f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 3405bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor t->isDependentType(), false, 3406561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (TInfo->getType()->isInstantiationDependentType() || 3407561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor e->isInstantiationDependent()), 3408bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (TInfo->getType()->containsUnexpandedParameterPack() || 3409bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor e->containsUnexpandedParameterPack())), 34102cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 34117c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 34127c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 34131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 341474626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 3415d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 3416d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 34175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 34185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 3419d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 3420d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 34212cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 34222cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 34232cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 3424d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 3425d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 34261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3427d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 3428d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 3429d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 343063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 34317c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 34321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 34337c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 34347c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 34357c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 34367c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 34371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34387c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 343963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 34407c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 34411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 34434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 34444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 34454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 34464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 34474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 34484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 34494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 34504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 3451196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 34524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 34534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 34544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 34554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 34564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 34574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 34584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 34594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 3460196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 34614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 34624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 34634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 34644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 34654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 34664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 34674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 34683498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 34694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 34704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 34714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 3472196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 34734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 34744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 34754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 34764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 34774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 34784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 347966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 3480ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 3481709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 3482709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 348366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 34841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 34864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 34874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 34884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 34894423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief Either: 34904423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes an array with more elements than 34914423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// there are initializers in the list, specifies an expression to be used 34924423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// for value initialization of the rest of the elements. 34934423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// Or 34944423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes a union, specifies which 34954423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// field within the union will be initialized. 34964423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis llvm::PointerUnion<Expr *, FieldDecl *> ArrayFillerOrUnionFieldInit; 34970bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 349866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 3499709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 3500709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 3501ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 3502d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3503d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 3504709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 3505709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 35061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3507ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 35081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3509aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the set of initializers. 3510aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getInits() { return reinterpret_cast<Expr **>(InitExprs.data()); } 3511ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 351216c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 3513c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 35144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 351566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 35161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 351716c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 3518c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 35194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 352066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 35211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 3523c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 35249e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 35259e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 3526c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 3527fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 3528709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 35291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 35314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 35324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 35334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 35344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 35354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 35364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 35374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 35384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 35394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 35404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 35414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 35424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 35434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 3544fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// accommodate the new entry. 3545709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 3546c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 35474423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief If this initializer list initializes an array with more elements 35484423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// than there are initializers in the list, specifies an expression to be 35494423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// used for value initialization of the rest of the elements. 35504423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis Expr *getArrayFiller() { 35514423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<Expr *>(); 35524423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 35538cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getArrayFiller() const { 35548cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getArrayFiller(); 35558cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 35563e8dc2ac8926dfbebd8f2f6b74ceba4befccd4d2Argyrios Kyrtzidis void setArrayFiller(Expr *filler); 35574423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 355821f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// \brief Return true if this is an array initializer and its array "filler" 355921f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// has been set. 356021f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis bool hasArrayFiller() const { return getArrayFiller(); } 356121f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis 35620bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 35630bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 35640bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 35650bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 35660bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 35670bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 35684423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis FieldDecl *getInitializedFieldInUnion() { 35694423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<FieldDecl *>(); 35704423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 35718cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const FieldDecl *getInitializedFieldInUnion() const { 35728cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getInitializedFieldInUnion(); 35738cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 35744423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis void setInitializedFieldInUnion(FieldDecl *FD) { 35754423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis ArrayFillerOrUnionFieldInit = FD; 35764423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 35770bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3578c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3579c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3580b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3581b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3582b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 35831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3584d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3585d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3586d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 358787fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 358887fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 35894c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 35904c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 35914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 35921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 35934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 35944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 35954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 359632cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl bool hadArrayRangeDesignator() const { 359732cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl return InitListExprBits.HadArrayRangeDesignator != 0; 359832cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl } 35991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 360032cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl InitListExprBits.HadArrayRangeDesignator = ARD; 360132cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl } 360232cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl 360332cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl bool initializesStdInitializerList() const { 360432cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl return InitListExprBits.InitializesStdInitializerList != 0; 360532cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl } 360632cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl void setInitializesStdInitializerList(bool ISIL = true) { 360732cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl InitListExprBits.InitializesStdInitializerList = ISIL; 3608a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3609a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 361063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 3611c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 361266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 36131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 361466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 361566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 36161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 361766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 361863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 361963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall if (InitExprs.empty()) return child_range(); 362063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&InitExprs[0], &InitExprs[0] + InitExprs.size()); 362163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 36221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3623709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 36248111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3625709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 36268111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 36271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3628ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 36298111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3630ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 36318111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3632ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 36338111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3634ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 36358111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 36364423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 36374423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtReader; 36384423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtWriter; 363966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 364066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 364105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 364205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 364305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 364405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 364505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 364605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 364705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 36481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 364905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 365005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 365105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 365205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 365305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 365405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 365505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 365605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 365705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 365805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 365905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 366005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 366105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3662ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3663ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3664ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3665ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3666ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 366705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 366805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 366905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 367005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3671eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 367205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3673eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 367405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 367505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 367605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 367705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 367805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 367905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 368005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 368105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 368205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3683a72c352e4950cb487942427550777378b68dc078Benjamin Kramer /// \brief The designators in this designated initialization 3684a72c352e4950cb487942427550777378b68dc078Benjamin Kramer /// expression. 3685a72c352e4950cb487942427550777378b68dc078Benjamin Kramer Designator *Designators; 3686a72c352e4950cb487942427550777378b68dc078Benjamin Kramer 3687ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3688319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3689ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3690eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 36919ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 36929ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 369305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3694d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3695d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3696a72c352e4950cb487942427550777378b68dc078Benjamin Kramer NumDesignators(0), NumSubExprs(NumSubExprs), Designators(0) { } 3697d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 369805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 369905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 370005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 370105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 370205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 370305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 370405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 370505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 370605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 370705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 37081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 370905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 371005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 37111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 371205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 371305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 371405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 371505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 371605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 371705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 371805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 371905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 372005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 372105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 372205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 372305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 372405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 372505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 372605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 37271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 372805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 372905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 373005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 373105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 373205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 373305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 373405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 373505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 373605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 373705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 373805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 373905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 374005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 374105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 374205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 374305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 374405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 374505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 374605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 374705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 374805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 374905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 375005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 375105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 375205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3753ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3754ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 375505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 37561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 37571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 375805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 375905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 376005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 376105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 376205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 376305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 376405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 37651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 376605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 376705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 376805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 376905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 377005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 377105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 377205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 377305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 377405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 37751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 377605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 377705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 377805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 377905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 378005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 378105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 378205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 378305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 378405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 378505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 378605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 378705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3788b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth IdentifierInfo *getFieldName() const; 378905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3790b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth FieldDecl *getField() const { 379105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 379205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 379305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 379405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 379505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 379605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 379705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 379805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 379905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 380005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 380105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 380205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 380387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 380487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 380587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 380687f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 380787f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 380805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 380905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 381005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 381105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 381205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 381305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 381405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 381505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 381605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 381705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 381805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 381905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 382005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 382105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 382205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 382305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 382405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 382505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 382605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 382705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 382805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 382905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 38304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3831d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3832d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3833d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3834d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3835d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3836d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 38374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 38384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 38394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 38404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 38414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 38424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 384324f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceLocation getEndLocation() const { 384424f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return Kind == FieldDesignator ? getFieldLoc() : getRBracketLoc(); 384524f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 384624f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getSourceRange() const { 384724f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return SourceRange(getStartLocation(), getEndLocation()); 384824f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 384905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 385005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 38511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 385205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 385305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 385405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3855eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 385605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3857d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3858d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 385905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 386005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 386105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 386205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 3863b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef Designator *designators_iterator; 3864ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 38651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 38661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3867ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 386805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3869b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef const Designator *const_designators_iterator; 3870b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_begin() const { return Designators; } 3871b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_end() const { 3872b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return Designators + NumDesignators; 3873b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3874b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 3875cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 3876cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 3877cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 3878cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 3879cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3880cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 3881cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 3882cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3883cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 3884b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef std::reverse_iterator<const_designators_iterator> 3885b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator; 3886b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rbegin() const { 3887b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_end()); 3888b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3889b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rend() const { 3890b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_begin()); 3891b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3892b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 3893711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3894711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3895ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setDesignators(ASTContext &C, const Designator *Desigs, 3896319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3897d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 389805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 389905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 390005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 390105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 390205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 390305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 390405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3905d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 390605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 390705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3908eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3909eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3910d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 391105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 391205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 39131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 391405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 391505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 391605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 391705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 391805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 391905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 392005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3921d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3922d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3923d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3924d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3925d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3926d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3927d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3928d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3929d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3930d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3931d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3932d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3933d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3934d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3935d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3936d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3937d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3938d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3939d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3940d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3941ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3942ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3943319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3944ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3945ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 394624f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getDesignatorsSourceRange() const; 394724f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara 394863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 394905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 395005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 39511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 395205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 395305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 395405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 395505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 395663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 395763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = reinterpret_cast<Stmt**>(this + 1); 395863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumSubExprs); 395963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 39603498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 39613498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 39623498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 39633498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 39643498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 39651a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 39661a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 39673498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 39681a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 39691a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 39701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 39713498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 39721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 3973f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 3974561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false, ty->isInstantiationDependentType(), false) { } 39753498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3976d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3977d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3978d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3979d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 39801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 39813498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 39823498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 39833498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 39843498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 398563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 39863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 39873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 39883498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 39893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 399063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 399105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 399205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 39932ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 39942ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 39952ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 39962ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 39972ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 39982ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 39992ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 40001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 40015b9cc5df25c2198f270dd1d5c438fdce70d4051dSebastian Redl unsigned numexprs, SourceLocation rparenloc); 40022ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 40032ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 400437bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 40051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40062ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 40071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 40092ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 40102ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 40112ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 40121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 40142ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 40152ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 40162ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 40172ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 401883ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 40191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 40212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 40222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 402363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 40242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 40251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 40262ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 40271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 40282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 40292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 40301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40312ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 403263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 403363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&Exprs[0], &Exprs[0]+NumExprs); 403463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 403537bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 403660adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 40373397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 40382ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 40392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 40401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4041ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// \brief Represents a C11 generic selection. 4042f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4043ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// A generic selection (C11 6.5.1.1) contains an unevaluated controlling 4044f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression, followed by one or more generic associations. Each generic 4045f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association specifies a type name and an expression, or "default" and an 4046f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression (in which case it is known as a default generic association). 4047f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The type and value of the generic selection are identical to those of its 4048f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// result expression, which is defined as the expression in the generic 4049f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association with a type name that is compatible with the type of the 4050f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// controlling expression, or the expression in the default generic association 4051f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// if no types are compatible. For example: 4052f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4053f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @code 4054f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// _Generic(X, double: 1, float: 2, default: 3) 4055f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @endcode 4056f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4057f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The above expression evaluates to 1 if 1.0 is substituted for X, 2 if 1.0f 4058f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// or 3 if "hello". 4059f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4060f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// As an extension, generic selections are allowed in C++, where the following 4061f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// additional semantics apply: 4062f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4063f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Any generic selection whose controlling expression is type-dependent or 4064f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which names a dependent type in its association list is result-dependent, 4065f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which means that the choice of result expression is dependent. 4066f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Result-dependent generic associations are both type- and value-dependent. 4067f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourneclass GenericSelectionExpr : public Expr { 4068f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne enum { CONTROLLING, END_EXPR }; 4069f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes; 4070f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Stmt **SubExprs; 4071f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, ResultIndex; 4072f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, DefaultLoc, RParenLoc; 4073f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4074f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbournepublic: 4075f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 4076f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 4077f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 4078f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 4079f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 4080f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack, 4081f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned ResultIndex); 4082f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4083f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// This constructor is used in the result-dependent case. 4084f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 4085f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 4086f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 4087f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 4088f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 4089f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack); 4090f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4091f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne explicit GenericSelectionExpr(EmptyShell Empty) 4092f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne : Expr(GenericSelectionExprClass, Empty) { } 4093f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4094f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getNumAssocs() const { return NumAssocs; } 4095f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4096f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getGenericLoc() const { return GenericLoc; } 4097f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getDefaultLoc() const { return DefaultLoc; } 4098f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getRParenLoc() const { return RParenLoc; } 4099f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4100f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getAssocExpr(unsigned i) const { 4101f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[END_EXPR+i]); 4102f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4103f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getAssocExpr(unsigned i) { return cast<Expr>(SubExprs[END_EXPR+i]); } 4104f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4105f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) const { 4106f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return AssocTypes[i]; 4107f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4108f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) { return AssocTypes[i]; } 4109f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4110f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne QualType getAssocType(unsigned i) const { 4111f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne if (const TypeSourceInfo *TS = getAssocTypeSourceInfo(i)) 4112f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return TS->getType(); 4113f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne else 4114f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return QualType(); 4115f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4116f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4117f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getControllingExpr() const { 4118f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[CONTROLLING]); 4119f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4120f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getControllingExpr() { return cast<Expr>(SubExprs[CONTROLLING]); } 4121f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4122f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// Whether this generic selection is result-dependent. 4123f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool isResultDependent() const { return ResultIndex == -1U; } 4124f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4125f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The zero-based index of the result expression's generic association in 4126f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// the generic selection's association list. Defined only if the 4127f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4128f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getResultIndex() const { 4129f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne assert(!isResultDependent() && "Generic selection is result-dependent"); 4130f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return ResultIndex; 4131f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4132f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4133f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The generic selection's result expression. Defined only if the 4134f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4135f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getResultExpr() const { return getAssocExpr(getResultIndex()); } 4136f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getResultExpr() { return getAssocExpr(getResultIndex()); } 4137f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4138f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceRange getSourceRange() const { 4139f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return SourceRange(GenericLoc, RParenLoc); 4140f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4141f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const Stmt *T) { 4142f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return T->getStmtClass() == GenericSelectionExprClass; 4143f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4144f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const GenericSelectionExpr *) { return true; } 4145f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4146f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne child_range children() { 4147f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return child_range(SubExprs, SubExprs+END_EXPR+NumAssocs); 4148f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4149f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4150f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne friend class ASTStmtReader; 4151f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne}; 4152f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 41534eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 41544eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 41554eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 41564eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 4157a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4158a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 4159a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 4160a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 4161a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 416273525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 416373525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 416473525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 4165a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 4166a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 4167d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 4168a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 4169a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 4170f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 4171f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 41720943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 41730943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 4174bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 4175561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 4176bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 4177d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 41781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4179d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 4180d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 4181d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 4182d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4183a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 4184a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 4185d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 4186d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4187d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 4188d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 4189d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4190d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 4191d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 4192d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4193a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 4194a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 41951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4196a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 4197a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 4198a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 41991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4200a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 4201a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 4202686775deca8b8685eb90801495880e3abdd844c2Chris Lattner void getEncodedElementAccess(SmallVectorImpl<unsigned> &Elts) const; 42031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 420463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 4205a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 4206a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 42071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42082140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 42092140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 42102140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 42111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 42131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 4214a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 4215a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 42161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4217a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 421863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 4219a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 4220a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4221a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 422256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 42239c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 42244eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 422556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 422656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 42274eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 4228469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall BlockExpr(BlockDecl *BD, QualType ty) 4229f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 4230ec79d877c1998366480d97a7a6c94e15c053edd8Douglas Gregor ty->isDependentType(), ty->isDependentType(), 4231ec79d877c1998366480d97a7a6c94e15c053edd8Douglas Gregor ty->isInstantiationDependentType() || BD->isDependentContext(), 4232561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 4233469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall TheBlock(BD) {} 42349c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 423584af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 423684af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 423784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 4238d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 423956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 424084af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 424184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 424256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 424356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 424456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 424556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 42469c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 424763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 424856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 42499c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 42509c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 425156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 4252a345edb668380691fc92d4e4aa0a5ffec366ca6aJohn McCall const FunctionProtoType *getFunctionType() const; 425356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 42541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 42559c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 42564eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 42574eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 42581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42594eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 426063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 42614eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 42621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42636b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// BlockDeclRefExpr - A reference to a local variable declared in an 42646b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// enclosing scope. 42654eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 42666b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *D; 42674eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 42687d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 42697d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 42704eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 42716b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall BlockDeclRefExpr(VarDecl *d, QualType t, ExprValueKind VK, 42726b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall SourceLocation l, bool ByRef, bool constAdded = false); 427394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 427494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 427594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 427694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 427794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 42781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42796b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *getDecl() { return D; } 42806b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const VarDecl *getDecl() const { return D; } 42816b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall void setDecl(VarDecl *VD) { D = VD; } 428294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 428394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 428494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 428594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 428663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 42871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42884eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 428994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 42901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42917d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 42927d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 4293ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 42941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 42951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 42964eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 42974eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 42981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42994eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 430063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 43014eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 43024eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 430361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// AsTypeExpr - Clang builtin function __builtin_astype [OpenCL 6.2.4.2] 430461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// This AST node provides support for reinterpreting a type to another 430561eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// type of the same size. 4306379010addb0e84fd0fbc37c829baf658958521bdJohn McCallclass AsTypeExpr : public Expr { // Should this be an ExplicitCastExpr? 430761eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerprivate: 4308379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Stmt *SrcExpr; 430961eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, RParenLoc; 4310379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4311379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTReader; 4312379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTStmtReader; 4313379010addb0e84fd0fbc37c829baf658958521bdJohn McCall explicit AsTypeExpr(EmptyShell Empty) : Expr(AsTypeExprClass, Empty) {} 4314ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 431561eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerpublic: 431661eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner AsTypeExpr(Expr* SrcExpr, QualType DstType, 431761eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner ExprValueKind VK, ExprObjectKind OK, 431861eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, SourceLocation RParenLoc) 4319ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Expr(AsTypeExprClass, DstType, VK, OK, 4320561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType(), 4321561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType() || SrcExpr->isValueDependent(), 4322561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->isInstantiationDependentType() || 4323561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->isInstantiationDependent()), 4324561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->containsUnexpandedParameterPack() || 4325561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->containsUnexpandedParameterPack())), 4326379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SrcExpr(SrcExpr), BuiltinLoc(BuiltinLoc), RParenLoc(RParenLoc) {} 4327ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 432861eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner /// getSrcExpr - Return the Expr to be converted. 4329379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Expr *getSrcExpr() const { return cast<Expr>(SrcExpr); } 4330379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4331379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getBuiltinLoc - Return the location of the __builtin_astype token. 4332379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4333379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4334379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getRParenLoc - Return the location of final right parenthesis. 4335379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getRParenLoc() const { return RParenLoc; } 4336ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 43377b33c2b3908b178511ccaace8cacb5e5b14552a9Nick Lewycky SourceRange getSourceRange() const { 433861eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner return SourceRange(BuiltinLoc, RParenLoc); 433961eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner } 4340ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 434161eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner static bool classof(const Stmt *T) { 4342ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return T->getStmtClass() == AsTypeExprClass; 434361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner } 434461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner static bool classof(const AsTypeExpr *) { return true; } 4345ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 434661eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner // Iterators 4347379010addb0e84fd0fbc37c829baf658958521bdJohn McCall child_range children() { return child_range(&SrcExpr, &SrcExpr+1); } 434861eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner}; 4349276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 43504b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr - An expression which accesses a pseudo-object 43514b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// l-value. A pseudo-object is an abstract object, accesses to which 43524b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// are translated to calls. The pseudo-object expression has a 43534b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// syntactic form, which shows how the expression was actually 43544b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// written in the source code, and a semantic form, which is a series 43554b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// of expressions to be executed in order which detail how the 43564b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// operation is actually evaluated. Optionally, one of the semantic 43574b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// forms may also provide a result value for the expression. 43584b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 43594b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// If any of the semantic-form expressions is an OpaqueValueExpr, 43604b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// that OVE is required to have a source expression, and it is bound 43614b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// to the result of that source expression. Such OVEs may appear 43624b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// only in subsequent semantic-form expressions and as 43634b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// sub-expressions of the syntactic form. 43644b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 43654b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr should be used only when an operation can be 43664b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// usefully described in terms of fairly simple rewrite rules on 43674b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// objects and functions that are meant to be used by end-developers. 43684b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// For example, under the Itanium ABI, dynamic casts are implemented 43694b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// as a call to a runtime function called __dynamic_cast; using this 43704b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// class to describe that would be inappropriate because that call is 43714b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// not really part of the user-visible semantics, and instead the 43724b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// cast is properly reflected in the AST and IR-generation has been 43734b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// taught to generate the call as necessary. In contrast, an 43744b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Objective-C property access is semantically defined to be 43754b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// equivalent to a particular message send, and this is very much 43764b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// part of the user model. The name of this class encourages this 43774b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// modelling design. 43784b9c2d235fb9449e249d74f48ecfec601650de93John McCallclass PseudoObjectExpr : public Expr { 43794b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.NumSubExprs - The number of sub-expressions. 43804b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Always at least two, because the first sub-expression is the 43814b9c2d235fb9449e249d74f48ecfec601650de93John McCall // syntactic form. 43824b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43834b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.ResultIndex - The index of the 43844b9c2d235fb9449e249d74f48ecfec601650de93John McCall // sub-expression holding the result. 0 means the result is void, 43854b9c2d235fb9449e249d74f48ecfec601650de93John McCall // which is unambiguous because it's the index of the syntactic 43864b9c2d235fb9449e249d74f48ecfec601650de93John McCall // form. Note that this is therefore 1 higher than the value passed 43874b9c2d235fb9449e249d74f48ecfec601650de93John McCall // in to Create, which is an index within the semantic forms. 43884b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Note also that ASTStmtWriter assumes this encoding. 43894b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43904b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr **getSubExprsBuffer() { return reinterpret_cast<Expr**>(this + 1); } 43914b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr * const *getSubExprsBuffer() const { 43924b9c2d235fb9449e249d74f48ecfec601650de93John McCall return reinterpret_cast<const Expr * const *>(this + 1); 43934b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43944b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43954b9c2d235fb9449e249d74f48ecfec601650de93John McCall friend class ASTStmtReader; 43964b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43974b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(QualType type, ExprValueKind VK, 43984b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *syntactic, ArrayRef<Expr*> semantic, 43994b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 44004b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44014b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(EmptyShell shell, unsigned numSemanticExprs); 44024b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44034b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSubExprs() const { 44044b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.NumSubExprs; 44054b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44064b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44074b9c2d235fb9449e249d74f48ecfec601650de93John McCallpublic: 44084b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// NoResult - A value for the result index indicating that there is 44094b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// no semantic result. 44104b9c2d235fb9449e249d74f48ecfec601650de93John McCall enum { NoResult = ~0U }; 44114b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44124b9c2d235fb9449e249d74f48ecfec601650de93John McCall static PseudoObjectExpr *Create(ASTContext &Context, Expr *syntactic, 44134b9c2d235fb9449e249d74f48ecfec601650de93John McCall ArrayRef<Expr*> semantic, 44144b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 44154b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44164b9c2d235fb9449e249d74f48ecfec601650de93John McCall static PseudoObjectExpr *Create(ASTContext &Context, EmptyShell shell, 44174b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned numSemanticExprs); 44184b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44194b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the syntactic form of this expression, i.e. the 44204b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expression it actually looks like. Likely to be expressed in 44214b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// terms of OpaqueValueExprs bound in the semantic form. 44224b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSyntacticForm() { return getSubExprsBuffer()[0]; } 44234b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSyntacticForm() const { return getSubExprsBuffer()[0]; } 44244b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44254b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the index of the result-bearing expression into the semantics 44264b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expressions, or PseudoObjectExpr::NoResult if there is none. 44274b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getResultExprIndex() const { 44284b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) return NoResult; 44294b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.ResultIndex - 1; 44304b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44314b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44324b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the result-bearing expression, or null if there is none. 44334b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getResultExpr() { 44344b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) 44354b9c2d235fb9449e249d74f48ecfec601650de93John McCall return 0; 44364b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[PseudoObjectExprBits.ResultIndex]; 44374b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44384b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getResultExpr() const { 44394b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getResultExpr(); 44404b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44414b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44424b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSemanticExprs() const { return getNumSubExprs() - 1; } 44434b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44444b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef Expr * const *semantics_iterator; 44454b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef const Expr * const *const_semantics_iterator; 44464b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_begin() { 44474b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 44484b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44494b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_begin() const { 44504b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 44514b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44524b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_end() { 44534b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 44544b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44554b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_end() const { 44564b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 44574b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44584b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSemanticExpr(unsigned index) { 44594b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(index + 1 < getNumSubExprs()); 44604b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[index + 1]; 44614b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44624b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSemanticExpr(unsigned index) const { 44634b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getSemanticExpr(index); 44644b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44654b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44664b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceLocation getExprLoc() const { 44674b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSyntacticForm()->getExprLoc(); 44684b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44694b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceRange getSourceRange() const { 44704b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSyntacticForm()->getSourceRange(); 44714b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44724b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44734b9c2d235fb9449e249d74f48ecfec601650de93John McCall child_range children() { 44744b9c2d235fb9449e249d74f48ecfec601650de93John McCall Stmt **cs = reinterpret_cast<Stmt**>(getSubExprsBuffer()); 44754b9c2d235fb9449e249d74f48ecfec601650de93John McCall return child_range(cs, cs + getNumSubExprs()); 44764b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44774b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44784b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool classof(const Stmt *T) { 44794b9c2d235fb9449e249d74f48ecfec601650de93John McCall return T->getStmtClass() == PseudoObjectExprClass; 44804b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44814b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool classof(const PseudoObjectExpr *) { return true; } 44824b9c2d235fb9449e249d74f48ecfec601650de93John McCall}; 44834b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4484276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// AtomicExpr - Variadic atomic builtins: __atomic_exchange, __atomic_fetch_*, 4485276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// __atomic_load, __atomic_store, and __atomic_compare_exchange_*, for the 4486276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// similarly-named C++0x instructions. All of these instructions take one 4487276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// primary pointer and at least one memory order. 4488276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanclass AtomicExpr : public Expr { 4489276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 4490276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman enum AtomicOp { Load, Store, CmpXchgStrong, CmpXchgWeak, Xchg, 44917a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall Add, Sub, And, Or, Xor, Init }; 4492276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanprivate: 4493276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman enum { PTR, ORDER, VAL1, ORDER_FAIL, VAL2, END_EXPR }; 4494276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Stmt* SubExprs[END_EXPR]; 4495276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned NumSubExprs; 4496276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation BuiltinLoc, RParenLoc; 4497276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp Op; 4498276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4499276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 4500dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman AtomicExpr(SourceLocation BLoc, Expr **args, unsigned nexpr, QualType t, 4501dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman AtomicOp op, SourceLocation RP); 4502276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4503276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman /// \brief Build an empty AtomicExpr. 4504276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman explicit AtomicExpr(EmptyShell Empty) : Expr(AtomicExprClass, Empty) { } 4505276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4506276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getPtr() const { 4507276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[PTR]); 4508276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4509276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setPtr(Expr *E) { 4510276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[PTR] = E; 4511276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4512276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrder() const { 4513276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER]); 4514276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4515276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setOrder(Expr *E) { 4516276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[ORDER] = E; 4517276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4518276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal1() const { 45197a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall if (Op == Init) 45207a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall return cast<Expr>(SubExprs[ORDER]); 4521276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs >= 3); 4522276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL1]); 4523276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4524276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setVal1(Expr *E) { 45257a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall if (Op == Init) { 45267a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall SubExprs[ORDER] = E; 45277a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall return; 45287a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall } 4529276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs >= 3); 4530276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[VAL1] = E; 4531276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4532276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrderFail() const { 4533276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4534276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER_FAIL]); 4535276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4536276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setOrderFail(Expr *E) { 4537276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4538276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[ORDER_FAIL] = E; 4539276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4540276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal2() const { 4541276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4542276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL2]); 4543276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4544276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setVal2(Expr *E) { 4545276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4546276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[VAL2] = E; 4547276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4548276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4549276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp getOp() const { return Op; } 4550276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setOp(AtomicOp op) { Op = op; } 4551276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned getNumSubExprs() { return NumSubExprs; } 4552276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setNumSubExprs(unsigned num) { NumSubExprs = num; } 4553276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4554dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 4555dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman 4556276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isVolatile() const { 4557276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return getPtr()->getType()->getPointeeType().isVolatileQualified(); 4558276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4559276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4560276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isCmpXChg() const { 4561276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return getOp() == AtomicExpr::CmpXchgStrong || 4562276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman getOp() == AtomicExpr::CmpXchgWeak; 4563276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4564276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4565276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4566276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 4567276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4568276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getRParenLoc() const { return RParenLoc; } 4569276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setRParenLoc(SourceLocation L) { RParenLoc = L; } 4570276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4571276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceRange getSourceRange() const { 4572276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return SourceRange(BuiltinLoc, RParenLoc); 4573276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4574276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman static bool classof(const Stmt *T) { 4575276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return T->getStmtClass() == AtomicExprClass; 4576276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4577276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman static bool classof(const AtomicExpr *) { return true; } 4578276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4579276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman // Iterators 4580276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman child_range children() { 4581276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return child_range(SubExprs, SubExprs+NumSubExprs); 4582276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4583276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman}; 45845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 45855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 45865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 4587