Expr.h revision 282e7e66748cc6dd14d6f7f2cb52e5373c531e61
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 4264c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// isCXX11ConstantExpr - Return true if this expression is a constant 4274c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// expression in C++11. Can only be used in C++. 428282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// 429282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// Note: This does not perform the implicit conversions required by C++11 430282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// [expr.const]p5. 4314c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith bool isCXX11ConstantExpr(ASTContext &Ctx, APValue *Result = 0, 4324c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith SourceLocation *Loc = 0) const; 4334c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith 434745f5147e065900267c85a5568785a1991d4838fRichard Smith /// isPotentialConstantExpr - Return true if this function's definition 435745f5147e065900267c85a5568785a1991d4838fRichard Smith /// might be usable in a constant expression in C++11, if it were marked 436745f5147e065900267c85a5568785a1991d4838fRichard Smith /// constexpr. Return false if the function can never produce a constant 437745f5147e065900267c85a5568785a1991d4838fRichard Smith /// expression, along with diagnostics describing why not. 438745f5147e065900267c85a5568785a1991d4838fRichard Smith static bool isPotentialConstantExpr(const FunctionDecl *FD, 439745f5147e065900267c85a5568785a1991d4838fRichard Smith llvm::SmallVectorImpl< 440745f5147e065900267c85a5568785a1991d4838fRichard Smith PartialDiagnosticAt> &Diags); 441745f5147e065900267c85a5568785a1991d4838fRichard Smith 4420e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// isConstantInitializer - Returns true if this expression can be emitted to 4430e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// IR as a constant, and thus can be used as a constant initializer in C. 4444204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 4451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4461e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalStatus is a struct with detailed info about an evaluation in progress. 4471e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalStatus { 44894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 44994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 45094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 4511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 452dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// Diag - If this is non-null, it will be filled in with a stack of notes 453dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// indicating why evaluation failed (or why it failed to produce a constant 454dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression). 455dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// If the expression is unfoldable, the notes will indicate why it's not 456dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// foldable. If the expression is foldable, but not a constant expression, 457dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// the notes will describes why it isn't a constant expression. If the 458dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression *is* a constant expression, no notes will be produced. 459dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith llvm::SmallVectorImpl<PartialDiagnosticAt> *Diag; 460dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith 461dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith EvalStatus() : HasSideEffects(false), Diag(0) {} 462e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 463e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 464e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 465e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 466e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 467e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 46894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 46994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 4701e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalResult is a struct with detailed info about an evaluated expression. 4711e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalResult : EvalStatus { 4721e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// Val - This is the value the expression can be folded to. 4731e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith APValue Val; 4741e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 4751e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // isGlobalLValue - Return true if the evaluated lvalue expression 4761e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // is global. 4771e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith bool isGlobalLValue() const; 4781e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith }; 4791e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 48051f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsRValue - Return true if this is a constant which we can fold to 48151f4708c00110940ca3f337961915f2ca1668375Richard Smith /// an rvalue using any crazy technique (that has nothing to do with language 48251f4708c00110940ca3f337961915f2ca1668375Richard Smith /// standards) that we want to, even if the expression has side-effects. If 48351f4708c00110940ca3f337961915f2ca1668375Richard Smith /// this function returns true, it returns the folded constant in Result. If 48451f4708c00110940ca3f337961915f2ca1668375Richard Smith /// the expression is a glvalue, an lvalue-to-rvalue conversion will be 48551f4708c00110940ca3f337961915f2ca1668375Richard Smith /// applied. 48651f4708c00110940ca3f337961915f2ca1668375Richard Smith bool EvaluateAsRValue(EvalResult &Result, const ASTContext &Ctx) const; 4875b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 488cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 489cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 490a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// any crazy technique that we want to, even if the expression has 491a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// side-effects. 4924ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsBooleanCondition(bool &Result, const ASTContext &Ctx) const; 493cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 49480d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith enum SideEffectsKind { SE_NoSideEffects, SE_AllowSideEffects }; 49580d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith 496a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// EvaluateAsInt - Return true if this is a constant which we can fold and 49780d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith /// convert to an integer, using any crazy technique that we want to. 49880d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith bool EvaluateAsInt(llvm::APSInt &Result, const ASTContext &Ctx, 49980d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith SideEffectsKind AllowSideEffects = SE_NoSideEffects) const; 500a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith 50151f4708c00110940ca3f337961915f2ca1668375Richard Smith /// isEvaluatable - Call EvaluateAsRValue to see if this expression can be 50251f4708c00110940ca3f337961915f2ca1668375Richard Smith /// constant folded without side-effects, but discard the result. 5034ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isEvaluatable(const ASTContext &Ctx) const; 504c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 5056ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 50651f4708c00110940ca3f337961915f2ca1668375Richard Smith /// which must be evaluated each time and must not be optimized away 5076ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 5086ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 5094ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool HasSideEffects(const ASTContext &Ctx) const; 51051f4708c00110940ca3f337961915f2ca1668375Richard Smith 51151f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateKnownConstInt - Call EvaluateAsRValue and return the folded 51251f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. This must be called on an expression that constant folds to an 51351f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. 514a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith llvm::APSInt EvaluateKnownConstInt(const ASTContext &Ctx) const; 51551fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 51651f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsLValue - Evaluate an expression to see if we can fold it to an 51751f4708c00110940ca3f337961915f2ca1668375Richard Smith /// lvalue with link time known address, with no side-effects. 5184ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsLValue(EvalResult &Result, const ASTContext &Ctx) const; 5191b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 520099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// EvaluateAsInitializer - Evaluate an expression as if it were the 521099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// initializer of the given declaration. Returns true if the initializer 522099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// can be folded to a constant, and produces any relevant notes. In C++11, 523099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// notes will be produced if the expression is not a constant expression. 524099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith bool EvaluateAsInitializer(APValue &Result, const ASTContext &Ctx, 525099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith const VarDecl *VD, 526099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith llvm::SmallVectorImpl<PartialDiagnosticAt> &Notes) const; 527099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith 52882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Enumeration used to describe the kind of Null pointer constant 52982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// returned from \c isNullPointerConstant(). 53082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth enum NullPointerConstantKind { 53182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is not a Null pointer constant. 53282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_NotNull = 0, 53382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 53482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a Null pointer constant built from a zero integer. 53582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_ZeroInteger, 53682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 53782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a C++0X nullptr. 53882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_CXX0X_nullptr, 53982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 54082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a GNU-style __null constant. 54182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_GNUNull 54282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth }; 54382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 544ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 545ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 546ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 547ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 548ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 549ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 550ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 551ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 552ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 553ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 554ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 555ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 556ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 557ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 558ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 55982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to 56082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// a Null pointer constant. The return value can further distinguish the 56182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// kind of NULL pointer constant that was detected. 56282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantKind isNullPointerConstant( 56382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth ASTContext &Ctx, 56482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantValueDependence NPC) const; 565efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 56644baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 5671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 568102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 5691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 57011ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 57111ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 57211ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 573864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// \brief Given an expression of bound-member type, find the type 574864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// of the member. Returns null if this is an *overloaded* bound 575864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// member expression. 576864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall static QualType findBoundMemberType(const Expr *expr); 577864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 578369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Result type of CanThrow(). 579369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl enum CanThrowResult { 580369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Cannot, 581369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Dependent, 582369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Can 583369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl }; 584369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Test if this expression, if evaluated, might throw, according to 585369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// the rules of C++ [expr.unary.noexcept]. 586369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CanThrowResult CanThrow(ASTContext &C) const; 587369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl 58891a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// IgnoreImpCasts - Skip past any implicit casts which might 58991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// surround this expression. Only skips ImplicitCastExprs. 59091a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall Expr *IgnoreImpCasts(); 59191a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 5927e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// IgnoreImplicit - Skip past any implicit AST nodes which might 5937e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// surround this expression. 5947e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall Expr *IgnoreImplicit() { return cast<Expr>(Stmt::IgnoreImplicit()); } 5957e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 5964e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 5971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 5984e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 5994e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 6002b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 60156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 60256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 60327c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 60456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 6051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 606ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off 607ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// any ParenExpr or ImplicitCastExprs, returning their operand. 6082fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 6092fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 6102f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// IgnoreConversionOperator - Ignore conversion operator. If this Expr is a 6112f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// call to a conversion operator, return the argument. 6122f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg Expr *IgnoreConversionOperator(); 6132f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 6142f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg const Expr *IgnoreConversionOperator() const { 6152f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg return const_cast<Expr*>(this)->IgnoreConversionOperator(); 6162f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg } 6172f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 6184d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const Expr *IgnoreParenImpCasts() const { 6194d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 6204d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 621ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 622f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 623f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 624f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall Expr *IgnoreParenLValueCasts(); 625ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 626f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const Expr *IgnoreParenLValueCasts() const { 627f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 628f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 6294d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 630ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 631ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 632ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 633ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 6341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6356eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 6366eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 6376eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 638ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// by semantic analysis for function calls, object constructions, etc. in 6396eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 6406eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 6416eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 6426eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 643ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 644558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 645558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 646558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 6472f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 64875e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Whether this expression is an implicit reference to 'this' in C++. 64975e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitCXXThis() const; 65091a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 65191a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall const Expr *IgnoreImpCasts() const { 65291a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return const_cast<Expr*>(this)->IgnoreImpCasts(); 65391a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall } 6542b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 6554e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 6564e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 65756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 65856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 65956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 660ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 661ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 662ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 6631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 664898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 665898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 666898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 6671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 6691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 6725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 6785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 67956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 68056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// fixed type and value class. These don't correspond to concrete 68156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// syntax; instead they're used to express operations (usually copy 68256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operations) on values whose source is generally obvious from 68356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// context. 68456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass OpaqueValueExpr : public Expr { 68556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 68656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *SourceExpr; 68756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation Loc; 688ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 68956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 690ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK, 69156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprObjectKind OK = OK_Ordinary) 69256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 693ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie T->isDependentType(), T->isDependentType(), 694561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isInstantiationDependentType(), 695ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie false), 69656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceExpr(0), Loc(Loc) { 69756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 69856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 69956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Given an expression which invokes a copy constructor --- i.e. a 70056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// CXXConstructExpr, possibly wrapped in an ExprWithCleanups --- 70156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// find the OpaqueValueExpr that's the source of the construction. 70256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static const OpaqueValueExpr *findInCopyConstruct(const Expr *expr); 70356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 70456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit OpaqueValueExpr(EmptyShell Empty) 70556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, Empty) { } 70656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 70756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Retrieve the location of this expression. 70856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getLocation() const { return Loc; } 709ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 71056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 71156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getSourceRange(); 71256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 71356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 71456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getExprLoc() const { 71556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getExprLoc(); 71656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 71756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 71856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 71956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { return child_range(); } 72056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 72156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression of an opaque value expression is the 72256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which originally generated the value. This is 72356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// provided as a convenience for analyses that don't wish to 72456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// precisely model the execution behavior of the program. 72556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 72656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression is typically set when building the 72756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which binds the opaque value expression in the first 72856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// place. 72956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getSourceExpr() const { return SourceExpr; } 73056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall void setSourceExpr(Expr *e) { SourceExpr = e; } 73156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 73256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 73356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == OpaqueValueExprClass; 73456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 73556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const OpaqueValueExpr *) { return true; } 73656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 73756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 738cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// \brief A reference to a declared variable, function, enum, etc. 739cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// [C99 6.5.1p2] 740cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 741cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// This encodes all the information about how a declaration is referenced 742cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// within an expression. 743cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 744cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// There are several optional constructs attached to DeclRefExprs only when 745cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// they apply in order to conserve memory. These are laid out past the end of 746cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// the object, and flags in the DeclRefExprBitfield track whether they exist: 747cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 748cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// DeclRefExprBits.HasQualifier: 749cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has a C++ 750cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// nested-name-specifier. 7513aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// DeclRefExprBits.HasFoundDecl: 7523aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// Specifies when this declaration reference expression has a record of 7533aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// a NamedDecl (different from the referenced ValueDecl) which was found 7543aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// during name lookup and/or overload resolution. 755e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara/// DeclRefExprBits.HasTemplateKWAndArgsInfo: 756cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has an explicit 757e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara/// C++ template keyword and/or template argument list. 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 759cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The declaration that we are referencing. 760cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *D; 7612577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 762cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The location of the declaration name itself. 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 7649e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 765cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief Provides source/type location info for the declaration name 766cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// embedded in D. 7672577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 7682577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 7696857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 7706857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc &getInternalQualifierLoc() { 7717e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth assert(hasQualifier()); 7726857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return *reinterpret_cast<NestedNameSpecifierLoc *>(this + 1); 773a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 774cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth 7756857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 7766857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth const NestedNameSpecifierLoc &getInternalQualifierLoc() const { 7776857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalQualifierLoc(); 778a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 779096832c5ed5b9106fa177ebc148489760c3bc496John McCall 7803aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Test whether there is a distinct FoundDecl attached to the end of 7813aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// this DRE. 7823aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool hasFoundDecl() const { return DeclRefExprBits.HasFoundDecl; } 7833aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 7843aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 7853aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// reference occured. 7863aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *&getInternalFoundDecl() { 7873aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth assert(hasFoundDecl()); 7883aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 7893aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(&getInternalQualifierLoc() + 1); 7903aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(this + 1); 7913aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 7923aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 7933aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 7943aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// reference occured. 7953aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getInternalFoundDecl() const { 7963aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalFoundDecl(); 7973aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 7983aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 7997e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth DeclRefExpr(NestedNameSpecifierLoc QualifierLoc, 800e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 8012577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 8023aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD, 8032577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 804f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 8052577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 806663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 807663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 808663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 8097e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8100da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 8110da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 8120da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 8139e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 8145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8155b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor DeclRefExpr(ValueDecl *D, QualType T, ExprValueKind VK, SourceLocation L, 8165b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor const DeclarationNameLoc &LocInfo = DeclarationNameLoc()) 817561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(DeclRefExprClass, T, VK, OK_Ordinary, false, false, false, false), 8185b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor D(D), Loc(L), DNLoc(LocInfo) { 819cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth DeclRefExprBits.HasQualifier = 0; 820e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara DeclRefExprBits.HasTemplateKWAndArgsInfo = 0; 8213aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth DeclRefExprBits.HasFoundDecl = 0; 8227cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = 0; 8230da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 8240da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 8251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 826a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 82740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 828e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 829dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 830a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 831f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 8323aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD = 0, 8330da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 834663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 8352577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 83640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 837e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 8382577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 8392577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 840f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 8413aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD = 0, 8422577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 8432577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 844663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 845663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 8463aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasQualifier, 8473aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasFoundDecl, 848e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool HasTemplateKWAndArgsInfo, 849def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor unsigned NumTemplateArgs); 8507e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 851cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *getDecl() { return D; } 852cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth const ValueDecl *getDecl() const { return D; } 853cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth void setDecl(ValueDecl *NewD) { D = NewD; } 854904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 8552577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 8562577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 8572577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 8582577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 8599e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 8600b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 86163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 8621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 863a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 864a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 865cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth bool hasQualifier() const { return DeclRefExprBits.HasQualifier; } 8667e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8677e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 868a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 869a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 870a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 871a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 8727e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8736857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc().getNestedNameSpecifier(); 874a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 87540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 8767e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 87740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// that precedes the name, with source-location information. 87840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 87940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 88040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 8817e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8826857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc(); 88340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 88440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 8853aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Get the NamedDecl through which this reference occured. 8863aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// 8873aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// This Decl may be different from the ValueDecl actually referred to in the 8883aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// presence of using declarations, etc. It always returns non-NULL, and may 8893aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// simple return the ValueDecl when appropriate. 8903aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getFoundDecl() { 8913aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 8923aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 8933aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8943aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Get the NamedDecl through which this reference occurred. 8953aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// See non-const variant. 8963aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth const NamedDecl *getFoundDecl() const { 8973aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 8983aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 8993aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 900e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKWAndArgsInfo() const { 901e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return DeclRefExprBits.HasTemplateKWAndArgsInfo; 902096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 9037e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 904e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 905e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() { 906e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) 907e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return 0; 908e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 9093aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasFoundDecl()) 910e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 9113aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalFoundDecl() + 1); 9123aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 9133aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 914e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 9153aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalQualifierLoc() + 1); 9167e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 917e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>(this + 1); 918e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 919e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 920e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 921e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() const { 922e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return const_cast<DeclRefExpr*>(this)->getTemplateKWAndArgsInfo(); 923e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 924e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 925e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the template keyword preceding 926e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// this name, if any. 927e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getTemplateKeywordLoc() const { 928e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 929e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->getTemplateKeywordLoc(); 930e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 931e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 932e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the left angle bracket starting the 933e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the name, if any. 934e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getLAngleLoc() const { 935e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 936e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->LAngleLoc; 937e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 938e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 939e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the right angle bracket ending the 940e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the name, if any. 941e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getRAngleLoc() const { 942e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 943e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->RAngleLoc; 944e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 945e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 946e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether the name in this declaration reference 947e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// was preceded by the template keyword. 948e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); } 949e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 950e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether this declaration reference was followed by an 951e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list. 952e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); } 953e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 954e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the explicit template argument list that followed the 955e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// member template name. 956e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 957e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara assert(hasExplicitTemplateArgs()); 958e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return *getTemplateKWAndArgsInfo(); 959096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 9607e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 961096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 962096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 963b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 964096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 965a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 966d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 967096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 968096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 969096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 970e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateArgumentListInfo *getOptionalExplicitTemplateArgs() const { 971096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 972096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 973096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 9747e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 975d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 976d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 977d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 978096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 979096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 980d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 9817e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 982a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 983a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 984833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 985096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 986a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 9877e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 988096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 989a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 9907e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 991a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 992a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 993a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 994096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 995a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 9967e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 997096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 998a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 9997e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 10007cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this expression refers to a function that 10017cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 10027cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 10037cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return DeclRefExprBits.HadMultipleCandidates; 10047cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 10057cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 10067cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a function that was resolved from an overloaded set having size 10077cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 10087cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 10097cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = V; 10107cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 10117cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 10121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 101399e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 10161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 101777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 101863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10197e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 102060adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 10213397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1024d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 1025d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 1026227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 1027227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 1028227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 1029227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 1030848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 1031848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 1032848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 1033848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 1034227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 10351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1036227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 1037227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 1038227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 1039227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 10401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 1041f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 1042ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie type->isDependentType(), type->isDependentType(), 1043561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType(), 1044bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 1045f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 10461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 104717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 10481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 104917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 105017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1051227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 105217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 105317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 105417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 105517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 105617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1057848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 10583a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 105963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 1060227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 10611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 1063227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 1064d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 10651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 106677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 106763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 1068227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 1069227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 10709996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 10719996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 10729996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 10739996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 10749996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 10759996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 10769996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 10779996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 10789996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 10799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned BitWidth; 10809996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 10819996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 10829996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 10839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 10849996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 10869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10879996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 10889996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 10899996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10909996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 10919996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage() : BitWidth(0), VAL(0) { } 10929996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10939996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 10949996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 10959996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 10969996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 10979996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 10989996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 10999996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 11009996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 11019996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 11029996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11039996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APIntStorage : public APNumericStorage { 1104ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 1105ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie llvm::APInt getValue() const { return getIntValue(); } 11069996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 11079996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 11089996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11099996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APFloatStorage : public APNumericStorage { 1110ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 111131dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka llvm::APFloat getValue(bool IsIEEE) const { 111231dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka return llvm::APFloat(getIntValue(), IsIEEE); 111331dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka } 11149996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 11159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 11169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 11179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 11189996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 11209996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APIntStorage Num; 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 11229996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 11249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 11259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 11269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 11309996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral(ASTContext &C, const llvm::APInt &V, 11319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l) 1132bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(IntegerLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1133561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1134f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l) { 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 11361dd986dff9ddfbec687975700770bb377988e9edRichard Trieu assert(V.getBitWidth() == C.getIntWidth(type) && 11371dd986dff9ddfbec687975700770bb377988e9edRichard Trieu "Integer type is not the correct size for constant."); 11389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1140a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 11411dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new integer literal with value 'V' and type 'type'. 11421dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param type - either IntTy, LongTy, LongLongTy, UnsignedIntTy, 11431dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// UnsignedLongTy, or UnsignedLongLongTy which should match the size of V 11441dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param V - the value that the returned integer literal contains. 11459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 11469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 11471dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new empty integer literal. 11489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 11490b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 11509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return Num.getValue(); } 115163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1153313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 1154313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 1155313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 11569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { Num.setValue(C, Val); } 11570b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 11580b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 11591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 11615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 11631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 116477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 116563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 11695cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 11705cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum CharacterKind { 11715cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 11725cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 11735cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 11745cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 11755cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 11765cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 11775cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 11805cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor unsigned Kind : 2; 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 11835cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor CharacterLiteral(unsigned value, CharacterKind kind, QualType type, 11845cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation l) 1185bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1186561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 11875cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Value(value), Loc(l), Kind(kind) { 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11890b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 11900b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 11910b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 11920b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1193018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 11945cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor CharacterKind getKind() const { return static_cast<CharacterKind>(Kind); } 11951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 119663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 11971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12000b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 12015cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor void setKind(CharacterKind kind) { Kind = kind; } 12020b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 12030b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 12041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 120877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 120977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 121063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 12149996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APFloatStorage Num; 121531dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka bool IsIEEE : 1; // Distinguishes between PPC128 and IEEE128. 1216720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12189996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 12199996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 1220720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 1221bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(FloatingLiteralClass, Type, VK_RValue, OK_Ordinary, false, false, 1222561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 122331dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka IsIEEE(&C.getTargetInfo().getLongDoubleFormat() == 122431dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka &llvm::APFloat::IEEEquad), 12259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IsExact(isexact), Loc(L) { 12269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 12279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 122917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 123031dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka explicit FloatingLiteral(ASTContext &C, EmptyShell Empty) 123131dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka : Expr(FloatingLiteralClass, Empty), 123231dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka IsIEEE(&C.getTargetInfo().getLongDoubleFormat() == 123331dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka &llvm::APFloat::IEEEquad), 123431dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka IsExact(false) { } 123517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 12369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 12379996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 12389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 12399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 12409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 124131dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka llvm::APFloat getValue() const { return Num.getValue(IsIEEE); } 12429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 12439996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis Num.setValue(C, Val); 12449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 124517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1246720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 124717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 1248c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 1249da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 1250da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 1251da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 1252da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 12531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 125417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 125517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 125617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 125763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 12585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 12615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 12631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 126477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 126563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12685d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 12695d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 12705d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 12715d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 12725d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 12735d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 12745549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 12755d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 12765d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 1277bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false, 1278561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1279f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 12801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1281cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 12821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 1283cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 1284cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 12855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 12865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1287cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1288cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 128963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return Val->getSourceRange(); } 12901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 12925d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 12935d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 12941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12955d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 129663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 12975d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 12985d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1299e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1300e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 1301e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1302a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1303c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1304c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1305690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1306690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 13078bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1308690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1309c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1310c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1311c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1312c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1313c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1314c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 13155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 13165cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 13175cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum StringKind { 13185cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 13195cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 13205cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF8, 13215cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 13225cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 13235cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 13245cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 13255cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 13263e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson friend class ASTStmtReader; 13273e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson 132864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman union { 132964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const char *asChar; 133064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint16_t *asUInt16; 133164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint32_t *asUInt32; 133264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } StrData; 133364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned Length; 133464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned CharByteWidth; 1335726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 13365cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor unsigned Kind : 3; 13375cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool IsPascal : 1; 1338726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 13392085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1340f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1341561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false, false, 1342561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false) {} 13431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 134464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman static int mapCharByteWidth(TargetInfo const &target,StringKind k); 134564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 13465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 13472085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 13482085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 13495cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor static StringLiteral *Create(ASTContext &C, StringRef Str, StringKind Kind, 135065aa6885818d4b4eea2e5a9d12085b2398148662Jay Foad bool Pascal, QualType Ty, 1351a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 13522085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 13532085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 13545cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor static StringLiteral *Create(ASTContext &C, StringRef Str, StringKind Kind, 13555cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool Pascal, QualType Ty, 13565cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation Loc) { 13575cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor return Create(C, Str, Kind, Pascal, Ty, &Loc, 1); 13582085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1359a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1360673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1361673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1362673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1363686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef getString() const { 136464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert(CharByteWidth==1 136564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman && "This function is used in places that assume strings use char"); 136664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(StrData.asChar, getByteLength()); 136764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 136864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 136964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman /// Allow clients that need the byte representation, such as ASTWriterStmt 137064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman /// ::VisitStringLiteral(), access. 137164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringRef getBytes() const { 137264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman // FIXME: StringRef may not be the right type to use as a result for this... 137364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert((CharByteWidth==1 || CharByteWidth==2 || CharByteWidth==4) 137464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman && "unsupported CharByteWidth"); 137564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman if (CharByteWidth==4) { 137664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(reinterpret_cast<const char*>(StrData.asUInt32), 137764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman getByteLength()); 137864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } else if (CharByteWidth==2) { 137964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(reinterpret_cast<const char*>(StrData.asUInt16), 138064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman getByteLength()); 138164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } else { 138264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(StrData.asChar, getByteLength()); 138364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 1384b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 13852f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 138664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman uint32_t getCodeUnit(size_t i) const { 138764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert(i<Length && "out of bounds access"); 138864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert((CharByteWidth==1 || CharByteWidth==2 || CharByteWidth==4) 138964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman && "unsupported CharByteWidth"); 139064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman if (CharByteWidth==4) { 139164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StrData.asUInt32[i]; 139264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } else if (CharByteWidth==2) { 139364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StrData.asUInt16[i]; 139464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } else { 139564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return static_cast<unsigned char>(StrData.asChar[i]); 139664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 139764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 139864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 139964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getByteLength() const { return CharByteWidth*Length; } 140064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getLength() const { return Length; } 140164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getCharByteWidth() const { return CharByteWidth; } 1402673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1403673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 140464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman void setString(ASTContext &C, StringRef Str, 140564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringKind Kind, bool IsPascal); 1406673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 14075cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor StringKind getKind() const { return static_cast<StringKind>(Kind); } 1408ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1409ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 14105cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isAscii() const { return Kind == Ascii; } 14115cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isWide() const { return Kind == Wide; } 14125cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF8() const { return Kind == UTF8; } 14135cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF16() const { return Kind == UTF16; } 14145cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF32() const { return Kind == UTF32; } 14153e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool isPascal() const { return IsPascal; } 14165cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 14178d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1418686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef Str = getString(); 1419b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1420b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 142133fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 142233fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 142333fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1424ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1425726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1426726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1427726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 14281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1429726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1430726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1431726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1432726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 14331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1434673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1435673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1436673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 1437ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 143808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 143908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 144008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 144108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 144208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 144308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 144408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 144508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 144608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 144708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1448673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1449b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1450b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1451b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 14525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 14541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 14555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 14585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 14601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 146177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 146263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 14635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 14665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 14675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 14685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 14695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1472898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1473f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 1474bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->isTypeDependent(), val->isValueDependent(), 1475561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor val->isInstantiationDependent(), 1476bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->containsUnexpandedParameterPack()), 1477898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 14781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1479c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 14801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1481c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1482c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 14835549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 14845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1485c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1486c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 148763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(L, R); } 14885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1489313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1490313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1491c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1492313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1493313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1494313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1495c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1496313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 14971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 14995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 15011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 150277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 150363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 15045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15070518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 15080518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 15095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1510dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1511dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1512dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1513dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1514dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1515dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1516dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 15175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 15185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15195baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 15205baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 15215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 15220799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 15235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 15240799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 15251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 15265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1527f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1528f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1529f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1530de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 1531bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->isValueDependent(), 1532ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (input->isInstantiationDependent() || 1533561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType()), 1534bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->containsUnexpandedParameterPack()), 15350799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 15365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15370b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 15381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 15392de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 15400b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15410799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 15420b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 15430b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 15450b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 15460b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 15485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 15490b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 15500b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 15522085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 15532de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 15542085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 15555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1556cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 15572085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 15582de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 15592085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 15605a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 15610799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 15620799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 15633c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15643c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementOp(Opcode Op) { 15653c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreInc || Op == UO_PostInc; 15663c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15672de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 15683c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementOp(getOpcode()); 15693c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15703c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15713c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isDecrementOp(Opcode Op) { 15723c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreDec || Op == UO_PostDec; 15732de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15743c3b7f90a863af43fa63043d396553ecf205351cJohn McCall bool isDecrementOp() const { 15753c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isDecrementOp(getOpcode()); 15763c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15773c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15783c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementDecrementOp(Opcode Op) { return Op <= UO_PreDec; } 15792de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 15803c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementDecrementOp(getOpcode()); 15812de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15823c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15832de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 15842de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 15852de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15860799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 15871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 15895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 15905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 15915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1592bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1593bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1594bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1595bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1596bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1597bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1598bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1599bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 160063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 16015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 16025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 16035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 16045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 16055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 160663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return Loc; } 16071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 16105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 16121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 161377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 161463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 16155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 16188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 16198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 16208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 16218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1622ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// double d; 16238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 16248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 16258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 16268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 16278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 16288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1629ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 16308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 16318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 16328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 16338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 16348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 16358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 16368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 16378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1638cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 16398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1640cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 16418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1642cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1643cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1644cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1645cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1646cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 16478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 16488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 16498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 16508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1651ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 16538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1654ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 16568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1657ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - An unsigned index into the array of Expr*'s stored after this node 16588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 16598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 16608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 16618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1662ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - A CXXBaseSpecifier*, for references that look at a field in a 1663cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 16648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1665ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 16678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1668ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 16698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 16708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1671ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1673ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 16748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1675ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 16768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1677ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 16798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 16808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1681ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 16828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1683cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1684cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1685cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1686cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1687ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1689ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie Kind getKind() const { 16908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 16918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1692ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 16948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 16958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 16968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 16978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 16988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 16998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 17018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 17028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1703cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 17048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1705ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 17078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 17088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1709ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1710cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1711cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1712cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1713ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1714cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1715ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 17178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 17188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 17198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1720ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// contains the location of the period (if there is one) and the 17218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 172206dec892b5300b43263d25c5476b506c9d6cfbadAbramo Bagnara SourceRange getSourceRange() const { return Range; } 17238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 17248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1726ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 17288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 17298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 17308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 17318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 17328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 17338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1734ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1735ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfExpr(ASTContext &C, QualType type, 17368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1737ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode* compsPtr, unsigned numComps, 17388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 17398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 17408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 17428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1743ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 17448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1746ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1747ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie static OffsetOfExpr *Create(ASTContext &C, QualType type, 1748ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1749ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode* compsPtr, unsigned numComps, 17508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 17518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 17528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1753ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie static OffsetOfExpr *CreateEmpty(ASTContext &C, 17548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 17558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 17578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 17588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 17598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 17618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 17628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1763ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 17658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 17668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 17688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 17698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1770ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17718cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const OffsetOfNode &getComponent(unsigned Idx) const { 17728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 17738cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return reinterpret_cast<const OffsetOfNode *> (this + 1)[Idx]; 17748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 17778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 17788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 17798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1780ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 17828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 17838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 17868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 17878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 17888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 17898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17908cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getIndexExpr(unsigned Idx) const { 17918cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<OffsetOfExpr*>(this)->getIndexExpr(Idx); 17928cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 17938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 17958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 17968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 17978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 17988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1799ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 18018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 18028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 180463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 18058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 18068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 18098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 18108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 18138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 181563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 181663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = 181763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall reinterpret_cast<Stmt**>(reinterpret_cast<OffsetOfNode*>(this + 1) 181863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall + NumComps); 181963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumExprs); 182063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 18218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 18228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1823f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated) 1824f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// expression operand. Used for sizeof/alignof (C99 6.5.3.4) and 1825f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// vec_step (OpenCL 1.1 6.11.12). 1826f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourneclass UnaryExprOrTypeTraitExpr : public Expr { 1827f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne unsigned Kind : 2; 18280518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 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()), 1845f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Kind(ExprKind), isType(true), OpLoc(op), RParenLoc(rp) { 1846a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1847ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1848ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 1849f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, Expr *E, 1850f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1851f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1852f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1853ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1854ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1855bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->isTypeDependent(), 1856561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor E->isInstantiationDependent(), 1857bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->containsUnexpandedParameterPack()), 1858f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Kind(ExprKind), isType(false), OpLoc(op), RParenLoc(rp) { 1859ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1860d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 18610518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 18620b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 1863f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne explicit UnaryExprOrTypeTraitExpr(EmptyShell Empty) 1864f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne : Expr(UnaryExprOrTypeTraitExprClass, Empty) { } 18650b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1866f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTrait getKind() const { 1867f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return static_cast<UnaryExprOrTypeTrait>(Kind); 1868f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne } 1869f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne void setKind(UnaryExprOrTypeTrait K) { Kind = K; } 18700b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 18710518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 18720518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 18735ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 18745ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1875a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 18760518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 18775ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 18780518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1879caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 18800518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1881d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 18820518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1883caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1884f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return const_cast<UnaryExprOrTypeTraitExpr*>(this)->getArgumentExpr(); 1885caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 18860b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 18870b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1888a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1889a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 18901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 18910b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 18920b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 18930518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 18940518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 18950518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 18960518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 18970518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 18980518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 189976e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 19000b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 19010b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 19020b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 19030b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1904866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 190563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 1906866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1907866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 19085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 1910f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return T->getStmtClass() == UnaryExprOrTypeTraitExprClass; 19115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1912f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne static bool classof(const UnaryExprOrTypeTraitExpr *) { return true; } 19131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 191477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 191563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children(); 19165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 19195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 19205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 19215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 19235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 192477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 19251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 19265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 19275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 19282324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 1929f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 193073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 1931f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 19322850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 1933bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 1934561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 1935561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 1936bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 1937bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 19382850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 193973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 194073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 194173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 19421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1943cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1944cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1945cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1946cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 19472324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 19482324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 19492324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 19502324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 19512324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 195233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 195333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 195433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 195533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 19565549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 19575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1958cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1959cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 19605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 19615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1962cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 19631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 19655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 196677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 19671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 19695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 19702324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 19711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 19735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 19742324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 19751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 197677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 19775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 19781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 19791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 198063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 198177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 19825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1984026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1985cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1986cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 198763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 19885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 19901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 19915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 19931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 199477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 199563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 199663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 199763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 19985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2001b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 20021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 2003b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 20041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 2005b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 2006b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 20075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 2008cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne enum { FN=0, PREARGS_START=1 }; 20095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 20105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 20115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 20121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2013b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 2014cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne // These versions of the constructor are for derived classes. 2015cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext& C, StmtClass SC, Expr *fn, unsigned NumPreArgs, 2016cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **args, unsigned numargs, QualType t, ExprValueKind VK, 2017cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SourceLocation rparenloc); 2018cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext &C, StmtClass SC, unsigned NumPreArgs, EmptyShell Empty); 2019cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 2020cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Stmt *getPreArg(unsigned i) { 2021cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2022cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 2023cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2024cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const Stmt *getPreArg(unsigned i) const { 2025cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2026cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 2027cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2028cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne void setPreArg(unsigned i, Stmt *PreArg) { 2029cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2030cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[PREARGS_START+i] = PreArg; 2031cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2032cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 2033cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne unsigned getNumPreArgs() const { return CallExprBits.NumPreArgs; } 203442602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 20355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 20361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 2037f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 20381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20391f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 2040ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 20411f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 20425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 20435549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 204418b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 2045a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 2046d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 2047d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 2048d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 2049d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 2050d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 2051a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 2052a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 2053bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 2054bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 2055bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 2056a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 20575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 20585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 20601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2061aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the call arguments. 2062cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **getArgs() { 2063cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return reinterpret_cast<Expr **>(SubExprs+getNumPreArgs()+PREARGS_START); 2064cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2065d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith const Expr *const *getArgs() const { 2066d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith return const_cast<CallExpr*>(this)->getArgs(); 2067d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith } 2068ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 20695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 20705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 20715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2072cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 20735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 20755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2076cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 20775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2079934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 2080934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 2081934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 2082cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[Arg+getNumPreArgs()+PREARGS_START] = ArgExpr; 2083934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 20841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2085d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 2086d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 2087d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 20888189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 20891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 20915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 20921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2093cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_begin() { return SubExprs+PREARGS_START+getNumPreArgs(); } 2094cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_end() { 2095cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2096cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2097cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_begin() const { 2098cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs(); 2099cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2100cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_end() const { 2101cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2102cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 21031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 21055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 21065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 21075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2108cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 2109cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 2110180f47959a066795cc0f409433023af448bb0328Richard Smith unsigned isBuiltinCall() const; 21111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 21131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 21146dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 21156dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 21161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2117d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 21181f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2119866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 21202882eca5a184c78f793188083f6ce539740a5cf2John McCall SourceRange getSourceRange() const; 21211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21234bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 21244bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 21255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 212788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 212877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 212963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 213063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], 213163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall &SubExprs[0]+NumArgs+getNumPreArgs()+PREARGS_START); 213263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 21335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 21345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2135ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 21365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 21375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 21386bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 21396857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth struct MemberNameQualifier { 21406857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The nested-name-specifier that qualifies the name, including 21416857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// source-location information. 21426857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc QualifierLoc; 21436857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth 21446857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The DeclAccessPair through which the MemberDecl was found due to 21456857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// name qualifiers. 2146161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 21476bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 21486bb8017bb9e828d118e15e59d71c66bba323c364John McCall 2149ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 2150ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 21515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 21521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2153ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 2154ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 2155f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 21561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2157ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 21585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 21591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21602577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 21612577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 21622577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 21632577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 2164ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 216583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 21661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 216783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 21686bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 21696bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 2170c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 21716bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 21721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2173e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief True if this member expression specified a template keyword 2174e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// and/or a template argument list explicitly, e.g., x->f<int>, 2175e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// x->template f, x->template f<int>. 2176e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// When true, an ASTTemplateKWAndArgsInfo structure and its 2177e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// TemplateArguments (if any) are allocated immediately after 2178e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// the MemberExpr or, if the member expression also has a qualifier, 2179e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// after the MemberNameQualifier structure. 2180e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool HasTemplateKWAndArgsInfo : 1; 21811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21827cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief True if this member expression refers to a method that 21837cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 21847cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool HadMultipleCandidates : 1; 21857cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 218683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 21876bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 21886bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 21896bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 219083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 219183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 219283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 21936bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 2194c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 2195c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 21961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2198f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2199f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 2200f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2201f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2202ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie base->isTypeDependent(), 2203561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isValueDependent(), 2204561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2205bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 22062577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 22072577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 2208e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara HasQualifierOrFoundDecl(false), HasTemplateKWAndArgsInfo(false), 22097cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) { 22102577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 22112577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 22122577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 22132577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 22142577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 22152577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 2216e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // for constructors, destructors and conversion operators). 22172577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2218f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 2219f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2220f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2221bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 2222561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2223bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 22242577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 22252577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 2226e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara HasQualifierOrFoundDecl(false), HasTemplateKWAndArgsInfo(false), 22277cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) {} 2228510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 22291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 223040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 2231e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 2232161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 22332577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 2234d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 2235f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 22361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 223788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 22385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 223957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 224057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 224157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 224257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 224357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 2244f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 2245f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 22461f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 22476bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 2248161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 22496bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 2250161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 2251161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 22526bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 22536bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 22546bb8017bb9e828d118e15e59d71c66bba323c364John McCall 22551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 22560979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 22570979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 22586bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 22591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 226183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 226283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 22631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 22646bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 226583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 22661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 226740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc.getNestedNameSpecifier(); 226840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 226940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 2270ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// \brief If the member name was qualified, retrieves the 227140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// nested-name-specifier that precedes the member name, with source-location 227240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// information. 227340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 227440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 227540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 2276ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 227740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc; 227883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 2279c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 2280e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 2281e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() { 2282e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) 2283e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return 0; 2284e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2285e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasQualifierOrFoundDecl) 2286e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>(this + 1); 2287e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2288e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 2289e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara getMemberQualifier() + 1); 2290e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2291e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2292e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 2293e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() const { 2294e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return const_cast<MemberExpr*>(this)->getTemplateKWAndArgsInfo(); 2295e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2296e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2297e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the template keyword preceding 2298e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// the member name, if any. 2299e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getTemplateKeywordLoc() const { 2300e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2301e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->getTemplateKeywordLoc(); 2302e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2303e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2304e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the left angle bracket starting the 2305e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the member name, if any. 2306e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getLAngleLoc() const { 2307e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2308e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->LAngleLoc; 2309e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2310e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2311e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the right angle bracket ending the 2312e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the member name, if any. 2313e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getRAngleLoc() const { 2314e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2315e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->RAngleLoc; 2316c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2318e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// Determines whether the member name was preceded by the template keyword. 2319e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); } 2320e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2321e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether the member name was followed by an 2322e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list. 2323e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); } 2324e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2325d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 2326d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 2327d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 2328096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 2329096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 2330096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2331096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2332096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2333096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 2334096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 2335b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 2336e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara assert(hasExplicitTemplateArgs()); 2337e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return *getTemplateKWAndArgsInfo(); 2338096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2339096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2340096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2341096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 2342096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 2343b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 2344096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 2345096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2346096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2347096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 2348096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 2349096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 2350b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo *getOptionalExplicitTemplateArgs() const { 2351096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 2352096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 2353d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 2354ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 2355c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 2356c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 2357833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 2358e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasExplicitTemplateArgs()) 23591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 23601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2361096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 2362c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2364c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 2365c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 23661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 2367e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasExplicitTemplateArgs()) 23681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 23691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2370096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 2371c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23732577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 23742577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 23752577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 23762577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 23772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 23782577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 23795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 23801f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 23811f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 2382ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 2383ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 2384026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 23851f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 23865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 238775e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor SourceRange getSourceRange() const; 2388ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 238963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return MemberLoc; } 23905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 239175e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Determine whether the base of this explicit is implicit. 239275e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitAccess() const { 239375e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor return getBase() && getBase()->isImplicitCXXThis(); 239475e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor } 23957cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 23967cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this member expression refers to a method that 23977cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 23987cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 23997cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return HadMultipleCandidates; 24007cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 24017cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 24027cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a method that was resolved from an overloaded set having size 24037cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 24047cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 24057cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates = V; 24067cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 24077cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 24081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 240983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 24105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 24121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24131237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 241463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 24154045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 24164045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 24174045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 24185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 2421aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 2422aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 24230fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 24240fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 24250fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 24260fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 24271d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 24281d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 24291d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 243042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 24315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 2432e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 2433aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 243442f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 2435f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 2436f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 2437ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie tinfo->getType()->isDependentType(), 2438bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->isValueDependent(), 2439561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (init->isInstantiationDependent() || 2440561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor tinfo->getType()->isInstantiationDependentType()), 2441bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->containsUnexpandedParameterPack()), 244242f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 24431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2444ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 2445ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 2446ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 2447ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 24485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 24495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 2450ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 2451e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 2452e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 2453ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 2454ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 24550fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 2456ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2457ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 245842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 245942f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 246042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 246163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 24620fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 24630fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 24640fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 24650fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 246673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 24670fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 246873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2469aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 24701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2472aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 2473aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 24741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24751237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 247663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Init, &Init+1); } 2477aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2478aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 247949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 248049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 248149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 248249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 24830835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2484cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 24855baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 24861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2487cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 24880835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2489409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 24901d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall void CheckCastConsistency() const; 2491409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2492f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2493f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2494f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2495f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2496f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2497654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis void setBasePathSize(unsigned basePathSize) { 2498654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis CastExprBits.BasePathSize = basePathSize; 2499654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis assert(CastExprBits.BasePathSize == basePathSize && 2500654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis "basePathSize doesn't fit in bits of CastExprBits.BasePathSize!"); 2501654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis } 2502654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis 25030835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2504f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2505f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2506f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2507898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2508898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2509898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2510898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2511898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 2512bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType() || (op && op->isValueDependent()), 2513ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (ty->isInstantiationDependentType() || 2514561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (op && op->isInstantiationDependent())), 2515bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (ty->containsUnexpandedParameterPack() || 2516bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor op->containsUnexpandedParameterPack())), 25178e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2518daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 25198e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 2520654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 25211d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall#ifndef NDEBUG 2522daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 25231d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall#endif 2524f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 25251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2526087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2527f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 25288e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 2529654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 25308e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 25311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25320835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 25338e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 25348e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2535f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2536f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 25370835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 25380835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2539087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2540087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 25416eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 25426eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 25436eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 25446eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 25456eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 25466eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 25476eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 254841b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2549f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2550f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 25518e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 25528e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2553f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2554f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2555f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2556f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2557f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2558f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 255941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 25601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 25614bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 25624bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 25630835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 25640835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 25651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25660835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 256763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Op, &Op+1); } 25680835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 25690835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 257049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 257149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 257249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 257349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 257449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2575bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2576bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2577906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2578bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2579bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2580bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2581bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2582906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 25831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2584906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2585906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2586906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2587906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2588bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2589bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 25900835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2591906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2592f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 25935baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2594f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 25955baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 259690045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2597087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2598f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2599f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2600f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2601f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2602f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2603f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 26045baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2605f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 26065baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2607f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2608f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2609f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2610f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 26115baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2612f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2613f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2614087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 261563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 26160835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 26170835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 261890045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 26191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 262149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 262249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 262349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 262449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 262591a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCallinline Expr *Expr::IgnoreImpCasts() { 262691a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall Expr *e = this; 262791a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall while (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e)) 262891a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall e = ice->getSubExpr(); 262991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return e; 263091a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall} 263191a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 263249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 26331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 263449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 263549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 263649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 263749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 263849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 263949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 26405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 264149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 264249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 264349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 264449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 264549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2646906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2647906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 26480835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 26499d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 26509d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 26519d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 265249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 265349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2654f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2655f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2656f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2657f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 265849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2659db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2660f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2661f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2662db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 266349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 26649d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 26659d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 26669d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 26679d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 26689d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 266949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 267049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 26719d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 267249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 26731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26744bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 26754bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 267649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 267749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 267849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 267949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 26806eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 268149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 268249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 26836eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2684b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2685b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2686f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2687f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2688f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 268941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2690f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 269141b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 269249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2693db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2694f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2695f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2696f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2697f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2698f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2699f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2700f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2701f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2702f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2703f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2704f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2705db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2706b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2707db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2708db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2709b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2710db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2711db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 271263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2713b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 27145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 27175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27186eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 27195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 27205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27213fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 27223fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 27233fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 27243fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 27253fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 27263fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 27273fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 27283fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 27293fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 27303fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 27313fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 27323fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 27333fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 27343fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 27353fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 27363fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 27373fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 27383fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 27395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 27405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 27415baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 27425baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 274317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 27440799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 27450799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 27460799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 274717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 27485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 27491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 27501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 275117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2752f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 275317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2754f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2755898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 2756bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2757561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2758561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2759bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2760bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 2761898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 27621237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 27631237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 27641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 27655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 27665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2768db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 27691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 27702de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2771db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 27722def77399ab3088106a2d61372344f5b7104e1a2David Blaikie SourceLocation getExprLoc() const { return OpLoc; } 277317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2774db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2775db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 27760799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2777db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2778db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 27795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2780db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 27815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2782db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2783db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 278463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 27855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 27865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 27895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 27905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 27915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27920799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2793a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2794063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2795063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2796063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2797063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2798063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2799063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2800063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2801063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 28025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2803200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 28042de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 28052de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 28060799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 28072de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 28080799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2809aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 28102de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 28110799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2812f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 28132de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 28140799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2815f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 28162de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 28170799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 28181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28192de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 28200799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2821aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 28222de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 28230799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2824f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 28250e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isAssignmentOp(Opcode Opc) { 28260e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return Opc >= BO_Assign && Opc <= BO_OrAssign; 28270e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 28280e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); } 28290e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 28300e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isCompoundAssignmentOp(Opcode Opc) { 28312de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 28322de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 28330e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isCompoundAssignmentOp() const { 28340e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isCompoundAssignmentOp(getOpcode()); 28350e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 28364b9c2d235fb9449e249d74f48ecfec601650de93John McCall static Opcode getOpForCompoundAssignment(Opcode Opc) { 28374b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(isCompoundAssignmentOp(Opc)); 2838b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall if (Opc >= BO_AndAssign) 2839b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall return Opcode(unsigned(Opc) - BO_AndAssign + BO_And); 28404b9c2d235fb9449e249d74f48ecfec601650de93John McCall else 28414b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Opcode(unsigned(Opc) - BO_MulAssign + BO_Mul); 28424b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 28430e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 28440e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isShiftAssignOp(Opcode Opc) { 28452de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 28462de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 28470e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isShiftAssignOp() const { 28480e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isShiftAssignOp(getOpcode()); 28490e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 28501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 28524bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 28534bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 28545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 28561237c673c07f9d827129ba02720108816abde562Ted Kremenek 28571237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 285863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 285963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 286063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 28611237c673c07f9d827129ba02720108816abde562Ted Kremenek 28625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 286317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2864f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 28652333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 2866f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 28672333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 2868bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2869561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2870561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2871bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2872bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 28732333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 28741237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 28751237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 28765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2877ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 28781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 28792de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 28805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 28815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 28835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 2884ec5bc81fd55bfcc26fc4bde6d5e33113d94c2209Zhongxing Xu/// these operators, the operands are promoted, the arithmetic performed, an 28855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 28865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 28875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 28885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2889ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2890ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 28915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2892f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 2893f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2894f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 289517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 2896f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, true), 2897ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2898ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 28991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 29005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 29015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2903ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2904ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2905ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2906ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2907ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2908ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2909ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2910ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2911ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2912ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2913ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2914ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2915ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 29165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 29171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 29181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 29195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 29215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 292256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// AbstractConditionalOperator - An abstract base class for 292356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator and BinaryConditionalOperator. 292456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass AbstractConditionalOperator : public Expr { 292556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation QuestionLoc, ColonLoc; 292656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 292756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 292856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallprotected: 292956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, QualType T, 293056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprValueKind VK, ExprObjectKind OK, 2931561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor bool TD, bool VD, bool ID, 293256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool ContainsUnexpandedParameterPack, 293356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, 293456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation cloc) 2935561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(SC, T, VK, OK, TD, VD, ID, ContainsUnexpandedParameterPack), 293656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QuestionLoc(qloc), ColonLoc(cloc) {} 293756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 293856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, EmptyShell Empty) 293956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, Empty) { } 294056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 294156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 294256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getCond - Return the expression representing the condition for 294356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 294456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const; 294556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 294656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 294756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 294856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const; 294956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 295056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 295156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 295256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 295356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const; 295456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 295556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getQuestionLoc() const { return QuestionLoc; } 295656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getColonLoc() const { return ColonLoc; } 295756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 295856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 295956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == ConditionalOperatorClass || 296056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->getStmtClass() == BinaryConditionalOperatorClass; 296156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 296256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const AbstractConditionalOperator *) { return true; } 296356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 296456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 296556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator - The ?: ternary operator. The GNU "missing 296656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// middle" extension is a BinaryConditionalOperator. 296756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass ConditionalOperator : public AbstractConditionalOperator { 29681237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 29695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 297056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 297156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 29725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 297347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 297456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation CLoc, Expr *rhs, 29750943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 297656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, t, VK, OK, 2977898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2978898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2979898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 298056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (lhs->isTypeDependent() || rhs->isTypeDependent()), 298156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (cond->isValueDependent() || lhs->isValueDependent() || 298256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->isValueDependent()), 2983561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 2984561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 2985561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2986bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 298756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall lhs->containsUnexpandedParameterPack() || 298856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 298956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QLoc, CLoc) { 29901237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 29911237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 29921237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 29931237c673c07f9d827129ba02720108816abde562Ted Kremenek } 29945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2995ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2996ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 299756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, Empty) { } 2998ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2999395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 300056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 30015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 3002395a2abf0028968d85958610e393e067885dc14fTed Kremenek 300356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 300456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 300556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { return cast<Expr>(SubExprs[LHS]); } 30061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 300756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 300856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 300956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 30105549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 3011ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 301256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 30135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 301447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 301563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 30165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 30175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 30181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 30191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 30205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 30215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 30221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30231237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 302463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 302563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 302663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 30275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 30285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 302956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// BinaryConditionalOperator - The GNU extension to the conditional 303056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operator which allows the middle operand to be omitted. 303156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// 303256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// This is a different expression kind on the assumption that almost 303356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// every client ends up needing to know that these are different. 303456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass BinaryConditionalOperator : public AbstractConditionalOperator { 303556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall enum { COMMON, COND, LHS, RHS, NUM_SUBEXPRS }; 303656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 303756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the common condition/left-hand-side expression, which will be 303856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated as the opaque value 303956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the condition, expressed in terms of the opaque value 304056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the left-hand-side, expressed in terms of the opaque value 304156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the right-hand-side 304256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Stmt *SubExprs[NUM_SUBEXPRS]; 304356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *OpaqueValue; 304456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 304556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 304656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 304756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall BinaryConditionalOperator(Expr *common, OpaqueValueExpr *opaqueValue, 304856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *cond, Expr *lhs, Expr *rhs, 304956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, SourceLocation cloc, 305056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 305156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, t, VK, OK, 305256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isTypeDependent() || rhs->isTypeDependent()), 305356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isValueDependent() || rhs->isValueDependent()), 3054561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (common->isInstantiationDependent() || 3055561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 305656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->containsUnexpandedParameterPack() || 305756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 305856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall qloc, cloc), 305956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue(opaqueValue) { 306056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COMMON] = common; 306156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COND] = cond; 306256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[LHS] = lhs; 306356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[RHS] = rhs; 306456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 306556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue->setSourceExpr(common); 306656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 306756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 306856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Build an empty conditional operator. 306956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit BinaryConditionalOperator(EmptyShell Empty) 307056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, Empty) { } 307156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 307256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCommon - Return the common expression, written to the 307356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// left of the condition. The opaque value will be bound to the 307456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// result of this expression. 307556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCommon() const { return cast<Expr>(SubExprs[COMMON]); } 307656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 307756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getOpaqueValue - Return the opaque value placeholder. 307856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *getOpaqueValue() const { return OpaqueValue; } 307956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 308056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCond - Return the condition expression; this is defined 308156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 308256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 308356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 308456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getTrueExpr - Return the subexpression which will be 308556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condition evaluates to true; this is defined 308656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 308756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { 308856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[LHS]); 308956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 309056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 309156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getFalseExpr - Return the subexpression which will be 309256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condnition evaluates to false; this is 309356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// defined in terms of the opaque value. 309456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const { 309556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[RHS]); 309656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 3097ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 309856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 309956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return SourceRange(getCommon()->getLocStart(), getFalseExpr()->getLocEnd()); 310056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 310156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 310256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == BinaryConditionalOperatorClass; 310356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 310456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const BinaryConditionalOperator *) { return true; } 310556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 310656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // Iterators 310756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { 310856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return child_range(SubExprs, SubExprs + NUM_SUBEXPRS); 310956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 311056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 311156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 311256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getCond() const { 311356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 311456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getCond(); 311556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getCond(); 311656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 311756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 311856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getTrueExpr() const { 311956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 312056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getTrueExpr(); 312156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getTrueExpr(); 312256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 312356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 312456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getFalseExpr() const { 312556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 312656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getFalseExpr(); 312756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getFalseExpr(); 312856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 312956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 31306481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 31316481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 31325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 3133ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *Label; 31345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3135ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelDecl *L, 31366481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 3137561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false, 3138561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 31392333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 31401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31417d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 31421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 31437d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 31447d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 31457d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 31467d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 31477d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 31487d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 31497d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 315063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 31515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 31525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 31531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3154ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *getLabel() const { return Label; } 3155ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void setLabel(LabelDecl *L) { Label = L; } 31567d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 31575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 31581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 31595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 31606481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 31611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31621237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 316363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 31645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3165ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3166ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 3167ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 3168ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 3169f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 3170f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 3171f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 3172ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 31735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 3174ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 3175ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 31762333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 3177561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // FIXME: Do we need to compute instantiation instantiation-dependence for 3178561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // statements? (ugh!) 3179d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 3180d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 3181f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 3182561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isDependentType(), false, false, false), 31832333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 31841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31856a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 31866a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 31876a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 31885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 31895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 31906a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 31916a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 319263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3193ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 3194ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 31951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3196026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 31976a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 3198026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 31996a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 32001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3201ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 32021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 3203ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 3204ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 32051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32061237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 320763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&SubStmt, &SubStmt+1); } 3208ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 3209ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3210d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 3211d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 3212d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 3213d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 3214d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 3215d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 3216d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 3217d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 3218d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 3219d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3220d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 3221d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 3222d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 3223d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 32245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 3225d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 3226d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3227d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 3228a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 32291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 3230bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor SourceLocation RP); 323194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 323294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 32331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 323494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 323594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 323694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 323794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 32381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 323994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 324094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 324194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 324263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3243d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 3244d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3245d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 32461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 3247d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3248d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 32491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3250d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 3251d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 3252d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 3253d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 32541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3255aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the array of expressions. 3256aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 3257ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3258d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 3259d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 3260d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 32615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3262d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3263d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 3264d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 32655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3266d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 32671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3268888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 326994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 3270dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 3271dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 3272a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith return getExpr(N+2)->EvaluateKnownConstInt(Ctx).getZExtValue(); 3273d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 32741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3275d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 327663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 327763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+NumExprs); 327863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3279d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 3280d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3281d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 32821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 3283d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 32847976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 32857976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 32867976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 32877976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 32887976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 32897976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 3290d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 32911237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 32925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 3293d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 3294d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 3295f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 3296f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 3297ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 3298bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent, 3299561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 3300561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 3301561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 3302bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 3303bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->containsUnexpandedParameterPack() || 3304bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 33051237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 33061237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 33071237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 33081237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 33091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 33107976932a1c256d447316ffac58e9821417725e34Eli Friedman 331144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 331244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 331344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 33147976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 33157976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 33164ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isConditionTrue(const ASTContext &C) const; 33177976932a1c256d447316ffac58e9821417725e34Eli Friedman 33187976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 33197976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 33204ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad Expr *getChosenSubExpr(const ASTContext &C) const { 33217976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 33227976932a1c256d447316ffac58e9821417725e34Eli Friedman } 33237976932a1c256d447316ffac58e9821417725e34Eli Friedman 33245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 332544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 33265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 332744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 33285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 332944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 333044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 333144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 333244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 33331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 333444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 333544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 33361237c673c07f9d827129ba02720108816abde562Ted Kremenek 333763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3338d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 3339d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3340d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 33411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 3342d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3343d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 33441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33451237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 334663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 334763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 334863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3349d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 3350d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 33512d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 33522d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 33532d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 33542d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 33552d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 33562d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 33572d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 33582d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 33592d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 33602d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 33612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 33621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 3363561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false, 3364561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 3365f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 33662d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 336744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 336844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 336944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 33702d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 33712d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 337244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 33732d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 337463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 33752d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 33762d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 33772d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 33781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 33792d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 33802d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 33811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33822d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 338363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 33842d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 33852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 338674626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 33877c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 33885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 33892cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 33907c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 33917c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 33922cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 33932cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 3394f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 3395bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor t->isDependentType(), false, 3396561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (TInfo->getType()->isInstantiationDependentType() || 3397561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor e->isInstantiationDependent()), 3398bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (TInfo->getType()->containsUnexpandedParameterPack() || 3399bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor e->containsUnexpandedParameterPack())), 34002cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 34017c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 34027c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 34031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 340474626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 3405d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 3406d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 34075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 34085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 3409d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 3410d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 34112cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 34122cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 34132cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 3414d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 3415d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 34161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3417d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 3418d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 3419d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 342063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 34217c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 34221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 34237c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 34247c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 34257c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 34267c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 34271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34287c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 342963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 34307c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 34311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 34334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 34344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 34354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 34364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 34374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 34384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 34394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 34404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 3441196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 34424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 34434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 34444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 34454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 34464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 34474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 34484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 34494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 3450196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 34514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 34524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 34534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 34544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 34554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 34564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 34574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 34583498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 34594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 34604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 34614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 3462196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 34634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 34644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 34654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 34664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 34674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 34684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 346966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 3470ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 3471709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 3472709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 347366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 34741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 34764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 34774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 34784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 34794423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief Either: 34804423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes an array with more elements than 34814423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// there are initializers in the list, specifies an expression to be used 34824423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// for value initialization of the rest of the elements. 34834423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// Or 34844423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes a union, specifies which 34854423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// field within the union will be initialized. 34864423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis llvm::PointerUnion<Expr *, FieldDecl *> ArrayFillerOrUnionFieldInit; 34870bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3488a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 3489a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 3490a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 3491a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 349266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 3493709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 3494709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 3495ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 3496d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3497d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 3498709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 3499709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 35001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3501ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 35021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3503aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the set of initializers. 3504aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getInits() { return reinterpret_cast<Expr **>(InitExprs.data()); } 3505ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 350616c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 3507c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 35084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 350966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 35101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 351116c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 3512c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 35134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 351466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 35151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 3517c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 35189e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 35199e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 3520c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 3521fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 3522709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 35231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 35254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 35264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 35274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 35284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 35294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 35304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 35314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 35324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 35334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 35344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 35354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 35364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 35374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 3538fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// accommodate the new entry. 3539709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 3540c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 35414423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief If this initializer list initializes an array with more elements 35424423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// than there are initializers in the list, specifies an expression to be 35434423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// used for value initialization of the rest of the elements. 35444423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis Expr *getArrayFiller() { 35454423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<Expr *>(); 35464423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 35478cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getArrayFiller() const { 35488cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getArrayFiller(); 35498cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 35503e8dc2ac8926dfbebd8f2f6b74ceba4befccd4d2Argyrios Kyrtzidis void setArrayFiller(Expr *filler); 35514423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 355221f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// \brief Return true if this is an array initializer and its array "filler" 355321f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// has been set. 355421f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis bool hasArrayFiller() const { return getArrayFiller(); } 355521f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis 35560bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 35570bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 35580bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 35590bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 35600bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 35610bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 35624423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis FieldDecl *getInitializedFieldInUnion() { 35634423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<FieldDecl *>(); 35644423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 35658cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const FieldDecl *getInitializedFieldInUnion() const { 35668cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getInitializedFieldInUnion(); 35678cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 35684423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis void setInitializedFieldInUnion(FieldDecl *FD) { 35694423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis ArrayFillerOrUnionFieldInit = FD; 35704423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 35710bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3572c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3573c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3574b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3575b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3576b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 35771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3578d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3579d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3580d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 358187fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 358287fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 35834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 35844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 35854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 35861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 35874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 35884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 35894c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3590a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 35911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 3592d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 3593a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3594a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 359563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 3596c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 359766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 35981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 359966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 360066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 36011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 360266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 360363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 360463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall if (InitExprs.empty()) return child_range(); 360563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&InitExprs[0], &InitExprs[0] + InitExprs.size()); 360663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 36071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3608709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 36098111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3610709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 36118111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 36121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3613ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 36148111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3615ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 36168111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3617ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 36188111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3619ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 36208111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 36214423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 36224423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtReader; 36234423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtWriter; 362466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 362566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 362605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 362705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 362805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 362905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 363005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 363105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 363205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 36331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 363405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 363505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 363605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 363705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 363805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 363905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 364005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 364105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 364205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 364305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 364405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 364505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 364605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3647ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3648ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3649ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3650ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3651ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 365205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 365305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 365405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 365505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3656eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 365705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3658eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 365905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 366005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 366105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 366205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3663ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 3664ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 3665ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 3666ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 366705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 366805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 366905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 367005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 367105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3672ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3673319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3674ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3675eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 36769ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 36779ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 367805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3679d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3680d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3681d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 3682d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 368305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 368405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 368505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 368605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 368705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 368805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 368905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 369005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 369105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 369205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 36931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 369405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 369505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 36961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 369705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 369805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 369905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 370005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 370105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 370205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 370305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 370405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 370505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 370605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 370705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 370805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 370905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 371005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 371105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 37121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 371305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 371405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 371505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 371605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 371705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 371805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 371905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 372005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 372105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 372205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 372305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 372405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 372505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 372605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 372705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 372805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 372905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 373005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 373105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 373205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 373305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 373405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 373505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 373605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 373705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3738ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3739ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 374005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 37411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 37421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 374305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 374405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 374505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 374605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 374705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 374805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 374905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 37501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 375105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 375205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 375305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 375405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 375505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 375605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 375705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 375805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 375905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 37601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 376105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 376205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 376305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 376405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 376505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 376605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 376705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 376805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 376905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 377005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 377105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 377205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3773b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth IdentifierInfo *getFieldName() const; 377405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3775b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth FieldDecl *getField() const { 377605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 377705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 377805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 377905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 378005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 378105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 378205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 378305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 378405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 378505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 378605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 378705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 378887f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 378987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 379087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 379187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 379287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 379305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 379405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 379505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 379605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 379705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 379805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 379905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 380005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 380105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 380205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 380305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 380405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 380505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 380605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 380705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 380805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 380905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 381005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 381105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 381205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 381305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 381405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 38154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3816d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3817d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3818d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3819d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3820d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3821d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 38224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 38234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 38244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 38254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 38264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 38274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 382824f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceLocation getEndLocation() const { 382924f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return Kind == FieldDesignator ? getFieldLoc() : getRBracketLoc(); 383024f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 383124f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getSourceRange() const { 383224f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return SourceRange(getStartLocation(), getEndLocation()); 383324f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 383405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 383505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 38361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 383705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 383805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 383905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3840eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 384105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3842d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3843d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 384405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 384505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 384605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 384705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 3848b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef Designator *designators_iterator; 3849ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 38501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 38511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3852ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 385305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3854b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef const Designator *const_designators_iterator; 3855b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_begin() const { return Designators; } 3856b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_end() const { 3857b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return Designators + NumDesignators; 3858b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3859b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 3860cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 3861cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 3862cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 3863cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 3864cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3865cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 3866cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 3867cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3868cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 3869b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef std::reverse_iterator<const_designators_iterator> 3870b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator; 3871b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rbegin() const { 3872b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_end()); 3873b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3874b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rend() const { 3875b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_begin()); 3876b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3877b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 3878711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3879711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3880ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setDesignators(ASTContext &C, const Designator *Desigs, 3881319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3882d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 388305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 388405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 388505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 388605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 388705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 388805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 388905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3890d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 389105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 389205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3893eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3894eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3895d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 389605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 389705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 38981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 389905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 390005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 390105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 390205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 390305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 390405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 390505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3906d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3907d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3908d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3909d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3910d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3911d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3912d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3913d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3914d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3915d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3916d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3917d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3918d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3919d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3920d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3921d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3922d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3923d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3924d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3925d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3926ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3927ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3928319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3929ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3930ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 393124f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getDesignatorsSourceRange() const; 393224f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara 393363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 393405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 393505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 39361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 393705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 393805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 393905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 394005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 394163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 394263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = reinterpret_cast<Stmt**>(this + 1); 394363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumSubExprs); 394463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 39453498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 39463498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 39473498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 39483498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 39493498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 39501a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 39511a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 39523498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 39531a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 39541a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 39551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 39563498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 39571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 3958f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 3959561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false, ty->isInstantiationDependentType(), false) { } 39603498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3961d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3962d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3963d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3964d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 39651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 39663498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 39673498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 39683498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 39693498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 397063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 39713498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 39723498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 39733498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 39743498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 397563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 397605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 397705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 39782ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 39792ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 39802ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 39812ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 39822ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 39832ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 39842ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 39851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 39860d9106fc97cde979a995e26b18bcd2643f8afb55Manuel Klimek unsigned numexprs, SourceLocation rparenloc, QualType T); 39872ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 39882ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 398937bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 39901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39912ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 39921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 39942ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 39952ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 39962ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 39971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 39992ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 40002ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 40012ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 40022ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 400383ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 40041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40052ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 40062ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 40072ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 400863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 40092ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 40101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 40112ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 40121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 40132ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 40142ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 40151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40162ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 401763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 401863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&Exprs[0], &Exprs[0]+NumExprs); 401963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 402037bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 402160adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 40223397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 40232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 40242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 40251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4026ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// \brief Represents a C11 generic selection. 4027f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4028ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// A generic selection (C11 6.5.1.1) contains an unevaluated controlling 4029f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression, followed by one or more generic associations. Each generic 4030f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association specifies a type name and an expression, or "default" and an 4031f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression (in which case it is known as a default generic association). 4032f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The type and value of the generic selection are identical to those of its 4033f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// result expression, which is defined as the expression in the generic 4034f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association with a type name that is compatible with the type of the 4035f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// controlling expression, or the expression in the default generic association 4036f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// if no types are compatible. For example: 4037f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4038f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @code 4039f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// _Generic(X, double: 1, float: 2, default: 3) 4040f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @endcode 4041f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4042f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The above expression evaluates to 1 if 1.0 is substituted for X, 2 if 1.0f 4043f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// or 3 if "hello". 4044f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4045f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// As an extension, generic selections are allowed in C++, where the following 4046f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// additional semantics apply: 4047f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4048f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Any generic selection whose controlling expression is type-dependent or 4049f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which names a dependent type in its association list is result-dependent, 4050f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which means that the choice of result expression is dependent. 4051f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Result-dependent generic associations are both type- and value-dependent. 4052f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourneclass GenericSelectionExpr : public Expr { 4053f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne enum { CONTROLLING, END_EXPR }; 4054f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes; 4055f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Stmt **SubExprs; 4056f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, ResultIndex; 4057f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, DefaultLoc, RParenLoc; 4058f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4059f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbournepublic: 4060f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 4061f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 4062f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 4063f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 4064f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 4065f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack, 4066f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned ResultIndex); 4067f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4068f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// This constructor is used in the result-dependent case. 4069f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 4070f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 4071f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 4072f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 4073f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 4074f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack); 4075f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4076f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne explicit GenericSelectionExpr(EmptyShell Empty) 4077f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne : Expr(GenericSelectionExprClass, Empty) { } 4078f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4079f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getNumAssocs() const { return NumAssocs; } 4080f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4081f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getGenericLoc() const { return GenericLoc; } 4082f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getDefaultLoc() const { return DefaultLoc; } 4083f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getRParenLoc() const { return RParenLoc; } 4084f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4085f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getAssocExpr(unsigned i) const { 4086f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[END_EXPR+i]); 4087f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4088f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getAssocExpr(unsigned i) { return cast<Expr>(SubExprs[END_EXPR+i]); } 4089f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4090f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) const { 4091f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return AssocTypes[i]; 4092f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4093f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) { return AssocTypes[i]; } 4094f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4095f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne QualType getAssocType(unsigned i) const { 4096f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne if (const TypeSourceInfo *TS = getAssocTypeSourceInfo(i)) 4097f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return TS->getType(); 4098f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne else 4099f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return QualType(); 4100f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4101f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4102f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getControllingExpr() const { 4103f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[CONTROLLING]); 4104f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4105f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getControllingExpr() { return cast<Expr>(SubExprs[CONTROLLING]); } 4106f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4107f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// Whether this generic selection is result-dependent. 4108f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool isResultDependent() const { return ResultIndex == -1U; } 4109f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4110f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The zero-based index of the result expression's generic association in 4111f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// the generic selection's association list. Defined only if the 4112f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4113f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getResultIndex() const { 4114f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne assert(!isResultDependent() && "Generic selection is result-dependent"); 4115f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return ResultIndex; 4116f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4117f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4118f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The generic selection's result expression. Defined only if the 4119f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4120f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getResultExpr() const { return getAssocExpr(getResultIndex()); } 4121f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getResultExpr() { return getAssocExpr(getResultIndex()); } 4122f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4123f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceRange getSourceRange() const { 4124f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return SourceRange(GenericLoc, RParenLoc); 4125f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4126f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const Stmt *T) { 4127f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return T->getStmtClass() == GenericSelectionExprClass; 4128f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4129f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const GenericSelectionExpr *) { return true; } 4130f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4131f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne child_range children() { 4132f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return child_range(SubExprs, SubExprs+END_EXPR+NumAssocs); 4133f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4134f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4135f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne friend class ASTStmtReader; 4136f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne}; 4137f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 41384eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 41394eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 41404eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 41414eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 4142a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4143a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 4144a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 4145a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 4146a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 414773525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 414873525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 414973525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 4150a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 4151a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 4152d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 4153a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 4154a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 4155f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 4156f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 41570943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 41580943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 4159bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 4160561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 4161bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 4162d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 41631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4164d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 4165d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 4166d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 4167d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4168a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 4169a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 4170d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 4171d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4172d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 4173d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 4174d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4175d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 4176d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 4177d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4178a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 4179a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 41801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4181a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 4182a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 4183a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 41841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4185a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 4186a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 4187686775deca8b8685eb90801495880e3abdd844c2Chris Lattner void getEncodedElementAccess(SmallVectorImpl<unsigned> &Elts) const; 41881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 418963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 4190a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 4191a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 41921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41932140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 41942140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 41952140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 41961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 41981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 4199a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 4200a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 42011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4202a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 420363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 4204a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 4205a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4206a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 420756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 42089c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 42094eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 421056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 421156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 42124eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 4213469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall BlockExpr(BlockDecl *BD, QualType ty) 4214f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 4215ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie ty->isDependentType(), false, 4216561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // FIXME: Check for instantiate-dependence in the statement? 4217561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ty->isInstantiationDependentType(), 4218561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 4219469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall TheBlock(BD) {} 42209c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 422184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 422284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 422384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 4224d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 422556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 422684af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 422784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 422856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 422956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 423056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 423156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 42329c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 423363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 423456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 42359c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 42369c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 423756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 423856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 423956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 42401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 42419c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 42424eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 42434eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 42441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42454eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 424663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 42474eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 42481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42496b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// BlockDeclRefExpr - A reference to a local variable declared in an 42506b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// enclosing scope. 42514eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 42526b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *D; 42534eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 42547d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 42557d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 42564eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 42576b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall BlockDeclRefExpr(VarDecl *d, QualType t, ExprValueKind VK, 42586b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall SourceLocation l, bool ByRef, bool constAdded = false); 425994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 426094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 426194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 426294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 426394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 42641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42656b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *getDecl() { return D; } 42666b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const VarDecl *getDecl() const { return D; } 42676b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall void setDecl(VarDecl *VD) { D = VD; } 426894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 426994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 427094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 427194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 427263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 42731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42744eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 427594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 42761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42777d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 42787d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 4279ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 42801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 42811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 42824eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 42834eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 42841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42854eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 428663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 42874eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 42884eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 428961eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// AsTypeExpr - Clang builtin function __builtin_astype [OpenCL 6.2.4.2] 429061eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// This AST node provides support for reinterpreting a type to another 429161eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// type of the same size. 4292379010addb0e84fd0fbc37c829baf658958521bdJohn McCallclass AsTypeExpr : public Expr { // Should this be an ExplicitCastExpr? 429361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerprivate: 4294379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Stmt *SrcExpr; 429561eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, RParenLoc; 4296379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4297379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTReader; 4298379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTStmtReader; 4299379010addb0e84fd0fbc37c829baf658958521bdJohn McCall explicit AsTypeExpr(EmptyShell Empty) : Expr(AsTypeExprClass, Empty) {} 4300ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 430161eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerpublic: 430261eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner AsTypeExpr(Expr* SrcExpr, QualType DstType, 430361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner ExprValueKind VK, ExprObjectKind OK, 430461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, SourceLocation RParenLoc) 4305ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Expr(AsTypeExprClass, DstType, VK, OK, 4306561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType(), 4307561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType() || SrcExpr->isValueDependent(), 4308561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->isInstantiationDependentType() || 4309561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->isInstantiationDependent()), 4310561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->containsUnexpandedParameterPack() || 4311561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->containsUnexpandedParameterPack())), 4312379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SrcExpr(SrcExpr), BuiltinLoc(BuiltinLoc), RParenLoc(RParenLoc) {} 4313ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 431461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner /// getSrcExpr - Return the Expr to be converted. 4315379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Expr *getSrcExpr() const { return cast<Expr>(SrcExpr); } 4316379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4317379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getBuiltinLoc - Return the location of the __builtin_astype token. 4318379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4319379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4320379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getRParenLoc - Return the location of final right parenthesis. 4321379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getRParenLoc() const { return RParenLoc; } 4322ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 43237b33c2b3908b178511ccaace8cacb5e5b14552a9Nick Lewycky SourceRange getSourceRange() const { 432461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner return SourceRange(BuiltinLoc, RParenLoc); 432561eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner } 4326ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 432761eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner static bool classof(const Stmt *T) { 4328ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return T->getStmtClass() == AsTypeExprClass; 432961eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner } 433061eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner static bool classof(const AsTypeExpr *) { return true; } 4331ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 433261eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner // Iterators 4333379010addb0e84fd0fbc37c829baf658958521bdJohn McCall child_range children() { return child_range(&SrcExpr, &SrcExpr+1); } 433461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner}; 4335276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 43364b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr - An expression which accesses a pseudo-object 43374b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// l-value. A pseudo-object is an abstract object, accesses to which 43384b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// are translated to calls. The pseudo-object expression has a 43394b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// syntactic form, which shows how the expression was actually 43404b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// written in the source code, and a semantic form, which is a series 43414b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// of expressions to be executed in order which detail how the 43424b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// operation is actually evaluated. Optionally, one of the semantic 43434b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// forms may also provide a result value for the expression. 43444b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 43454b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// If any of the semantic-form expressions is an OpaqueValueExpr, 43464b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// that OVE is required to have a source expression, and it is bound 43474b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// to the result of that source expression. Such OVEs may appear 43484b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// only in subsequent semantic-form expressions and as 43494b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// sub-expressions of the syntactic form. 43504b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 43514b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr should be used only when an operation can be 43524b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// usefully described in terms of fairly simple rewrite rules on 43534b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// objects and functions that are meant to be used by end-developers. 43544b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// For example, under the Itanium ABI, dynamic casts are implemented 43554b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// as a call to a runtime function called __dynamic_cast; using this 43564b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// class to describe that would be inappropriate because that call is 43574b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// not really part of the user-visible semantics, and instead the 43584b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// cast is properly reflected in the AST and IR-generation has been 43594b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// taught to generate the call as necessary. In contrast, an 43604b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Objective-C property access is semantically defined to be 43614b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// equivalent to a particular message send, and this is very much 43624b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// part of the user model. The name of this class encourages this 43634b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// modelling design. 43644b9c2d235fb9449e249d74f48ecfec601650de93John McCallclass PseudoObjectExpr : public Expr { 43654b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.NumSubExprs - The number of sub-expressions. 43664b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Always at least two, because the first sub-expression is the 43674b9c2d235fb9449e249d74f48ecfec601650de93John McCall // syntactic form. 43684b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43694b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.ResultIndex - The index of the 43704b9c2d235fb9449e249d74f48ecfec601650de93John McCall // sub-expression holding the result. 0 means the result is void, 43714b9c2d235fb9449e249d74f48ecfec601650de93John McCall // which is unambiguous because it's the index of the syntactic 43724b9c2d235fb9449e249d74f48ecfec601650de93John McCall // form. Note that this is therefore 1 higher than the value passed 43734b9c2d235fb9449e249d74f48ecfec601650de93John McCall // in to Create, which is an index within the semantic forms. 43744b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Note also that ASTStmtWriter assumes this encoding. 43754b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43764b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr **getSubExprsBuffer() { return reinterpret_cast<Expr**>(this + 1); } 43774b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr * const *getSubExprsBuffer() const { 43784b9c2d235fb9449e249d74f48ecfec601650de93John McCall return reinterpret_cast<const Expr * const *>(this + 1); 43794b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43804b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43814b9c2d235fb9449e249d74f48ecfec601650de93John McCall friend class ASTStmtReader; 43824b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43834b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(QualType type, ExprValueKind VK, 43844b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *syntactic, ArrayRef<Expr*> semantic, 43854b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 43864b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43874b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(EmptyShell shell, unsigned numSemanticExprs); 43884b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43894b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSubExprs() const { 43904b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.NumSubExprs; 43914b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43924b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43934b9c2d235fb9449e249d74f48ecfec601650de93John McCallpublic: 43944b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// NoResult - A value for the result index indicating that there is 43954b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// no semantic result. 43964b9c2d235fb9449e249d74f48ecfec601650de93John McCall enum { NoResult = ~0U }; 43974b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43984b9c2d235fb9449e249d74f48ecfec601650de93John McCall static PseudoObjectExpr *Create(ASTContext &Context, Expr *syntactic, 43994b9c2d235fb9449e249d74f48ecfec601650de93John McCall ArrayRef<Expr*> semantic, 44004b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 44014b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44024b9c2d235fb9449e249d74f48ecfec601650de93John McCall static PseudoObjectExpr *Create(ASTContext &Context, EmptyShell shell, 44034b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned numSemanticExprs); 44044b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44054b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the syntactic form of this expression, i.e. the 44064b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expression it actually looks like. Likely to be expressed in 44074b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// terms of OpaqueValueExprs bound in the semantic form. 44084b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSyntacticForm() { return getSubExprsBuffer()[0]; } 44094b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSyntacticForm() const { return getSubExprsBuffer()[0]; } 44104b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44114b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the index of the result-bearing expression into the semantics 44124b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expressions, or PseudoObjectExpr::NoResult if there is none. 44134b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getResultExprIndex() const { 44144b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) return NoResult; 44154b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.ResultIndex - 1; 44164b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44174b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44184b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the result-bearing expression, or null if there is none. 44194b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getResultExpr() { 44204b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) 44214b9c2d235fb9449e249d74f48ecfec601650de93John McCall return 0; 44224b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[PseudoObjectExprBits.ResultIndex]; 44234b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44244b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getResultExpr() const { 44254b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getResultExpr(); 44264b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44274b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44284b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSemanticExprs() const { return getNumSubExprs() - 1; } 44294b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44304b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef Expr * const *semantics_iterator; 44314b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef const Expr * const *const_semantics_iterator; 44324b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_begin() { 44334b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 44344b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44354b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_begin() const { 44364b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 44374b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44384b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_end() { 44394b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 44404b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44414b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_end() const { 44424b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 44434b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44444b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSemanticExpr(unsigned index) { 44454b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(index + 1 < getNumSubExprs()); 44464b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[index + 1]; 44474b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44484b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSemanticExpr(unsigned index) const { 44494b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getSemanticExpr(index); 44504b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44514b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44524b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceLocation getExprLoc() const { 44534b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSyntacticForm()->getExprLoc(); 44544b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44554b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceRange getSourceRange() const { 44564b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSyntacticForm()->getSourceRange(); 44574b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44584b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44594b9c2d235fb9449e249d74f48ecfec601650de93John McCall child_range children() { 44604b9c2d235fb9449e249d74f48ecfec601650de93John McCall Stmt **cs = reinterpret_cast<Stmt**>(getSubExprsBuffer()); 44614b9c2d235fb9449e249d74f48ecfec601650de93John McCall return child_range(cs, cs + getNumSubExprs()); 44624b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44634b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44644b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool classof(const Stmt *T) { 44654b9c2d235fb9449e249d74f48ecfec601650de93John McCall return T->getStmtClass() == PseudoObjectExprClass; 44664b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44674b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool classof(const PseudoObjectExpr *) { return true; } 44684b9c2d235fb9449e249d74f48ecfec601650de93John McCall}; 44694b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4470276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// AtomicExpr - Variadic atomic builtins: __atomic_exchange, __atomic_fetch_*, 4471276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// __atomic_load, __atomic_store, and __atomic_compare_exchange_*, for the 4472276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// similarly-named C++0x instructions. All of these instructions take one 4473276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// primary pointer and at least one memory order. 4474276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanclass AtomicExpr : public Expr { 4475276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 4476276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman enum AtomicOp { Load, Store, CmpXchgStrong, CmpXchgWeak, Xchg, 44777a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall Add, Sub, And, Or, Xor, Init }; 4478276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanprivate: 4479276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman enum { PTR, ORDER, VAL1, ORDER_FAIL, VAL2, END_EXPR }; 4480276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Stmt* SubExprs[END_EXPR]; 4481276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned NumSubExprs; 4482276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation BuiltinLoc, RParenLoc; 4483276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp Op; 4484276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4485276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 4486dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman AtomicExpr(SourceLocation BLoc, Expr **args, unsigned nexpr, QualType t, 4487dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman AtomicOp op, SourceLocation RP); 4488276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4489276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman /// \brief Build an empty AtomicExpr. 4490276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman explicit AtomicExpr(EmptyShell Empty) : Expr(AtomicExprClass, Empty) { } 4491276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4492276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getPtr() const { 4493276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[PTR]); 4494276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4495276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setPtr(Expr *E) { 4496276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[PTR] = E; 4497276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4498276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrder() const { 4499276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER]); 4500276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4501276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setOrder(Expr *E) { 4502276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[ORDER] = E; 4503276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4504276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal1() const { 45057a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall if (Op == Init) 45067a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall return cast<Expr>(SubExprs[ORDER]); 4507276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs >= 3); 4508276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL1]); 4509276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4510276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setVal1(Expr *E) { 45117a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall if (Op == Init) { 45127a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall SubExprs[ORDER] = E; 45137a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall return; 45147a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall } 4515276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs >= 3); 4516276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[VAL1] = E; 4517276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4518276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrderFail() const { 4519276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4520276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER_FAIL]); 4521276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4522276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setOrderFail(Expr *E) { 4523276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4524276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[ORDER_FAIL] = E; 4525276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4526276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal2() const { 4527276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4528276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL2]); 4529276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4530276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setVal2(Expr *E) { 4531276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman assert(NumSubExprs == 5); 4532276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SubExprs[VAL2] = E; 4533276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4534276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4535276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp getOp() const { return Op; } 4536276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setOp(AtomicOp op) { Op = op; } 4537276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned getNumSubExprs() { return NumSubExprs; } 4538276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setNumSubExprs(unsigned num) { NumSubExprs = num; } 4539276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4540dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 4541dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman 4542276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isVolatile() const { 4543276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return getPtr()->getType()->getPointeeType().isVolatileQualified(); 4544276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4545276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4546276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isCmpXChg() const { 4547276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return getOp() == AtomicExpr::CmpXchgStrong || 4548276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman getOp() == AtomicExpr::CmpXchgWeak; 4549276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4550276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4551276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4552276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 4553276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4554276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getRParenLoc() const { return RParenLoc; } 4555276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman void setRParenLoc(SourceLocation L) { RParenLoc = L; } 4556276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4557276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceRange getSourceRange() const { 4558276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return SourceRange(BuiltinLoc, RParenLoc); 4559276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4560276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman static bool classof(const Stmt *T) { 4561276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return T->getStmtClass() == AtomicExprClass; 4562276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4563276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman static bool classof(const AtomicExpr *) { return true; } 4564276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4565276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman // Iterators 4566276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman child_range children() { 4567276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return child_range(SubExprs, SubExprs+NumSubExprs); 4568276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4569276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman}; 45705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 45715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 45725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 4573