Expr.h revision 478851c3ed6bd784e7377dffd8e57b200c1b9ba9
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" 18478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer#include "clang/AST/Decl.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Stmt.h" 205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Type.h" 21161755a09898c95d21bfff33707da9ca41cd53c5John McCall#include "clang/AST/DeclAccessPair.h" 225baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall#include "clang/AST/OperationKinds.h" 23709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek#include "clang/AST/ASTVector.h" 2471a7605977113c795edd44fcbd2302ad49506653Argyrios Kyrtzidis#include "clang/AST/TemplateBase.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" 31aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar#include "llvm/Support/Compiler.h" 32403ba3522d1b1c97ae5fad81c1a2c4b3a754e1c1Nick Lewycky#include <cctype> 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 35590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 36c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 37c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 38c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 39c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 408e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 41c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 4256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 43409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson class CXXBaseSpecifier; 4488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 4588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 46f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall class ObjCPropertyRefExpr; 4756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall class OpaqueValueExpr; 4888a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 497ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 50686775deca8b8685eb90801495880e3abdd844c2Chris Lattnertypedef SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; 517ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 58898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 598e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCallprotected: 60f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, 61ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool TD, bool VD, bool ID, bool ContainsUnexpandedParameterPack) 62ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Stmt(SC) 63561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor { 648e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.TypeDependent = TD; 658e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.ValueDependent = VD; 66561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = ID; 67f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ValueKind = VK; 68f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ObjectKind = OK; 69bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = ContainsUnexpandedParameterPack; 70898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 71898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 72898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 730b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 740b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 750b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 77f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 799d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 809d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 819d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 829d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 839d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 849d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 859d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 86905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 878320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 88f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 909d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 9177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 92898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 93898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 94898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 96898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 97898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 98898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 998e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isValueDependent() const { return ExprBits.ValueDependent; } 100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1010b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 102ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setValueDependent(bool VD) { 103ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie ExprBits.ValueDependent = VD; 104561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor if (VD) 105561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = true; 106561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 1070b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 113898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 115898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 117898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 118898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 1198e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isTypeDependent() const { return ExprBits.TypeDependent; } 120898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1210b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 122ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setTypeDependent(bool TD) { 123ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie ExprBits.TypeDependent = TD; 124561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor if (TD) 125561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = true; 126561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 127561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor 128561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \brief Whether this expression is instantiation-dependent, meaning that 129561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// it depends in some way on a template parameter, even if neither its type 130561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// nor (constant) value can change due to the template instantiation. 131561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 132561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// In the following example, the expression \c sizeof(sizeof(T() + T())) is 133561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// instantiation-dependent (since it involves a template parameter \c T), but 134561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// is neither type- nor value-dependent, since the type of the inner 135561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \c sizeof is known (\c std::size_t) and therefore the size of the outer 136561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \c sizeof is known. 137561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 138561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \code 139561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// template<typename T> 140561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// void f(T x, T y) { 141561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// sizeof(sizeof(T() + T()); 142561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// } 143561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \endcode 144561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// 145ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool isInstantiationDependent() const { 146ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return ExprBits.InstantiationDependent; 147561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 148ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 149561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor /// \brief Set whether this expression is instantiation-dependent or not. 150ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setInstantiationDependent(bool ID) { 151561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor ExprBits.InstantiationDependent = ID; 152561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor } 1530b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 154d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Whether this expression contains an unexpanded parameter 155d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// pack (for C++0x variadic templates). 156d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 157d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// Given the following function template: 158d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 159d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \code 160d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// template<typename F, typename ...Types> 161d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// void forward(const F &f, Types &&...args) { 162d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// f(static_cast<Types&&>(args)...); 163d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// } 164d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \endcode 165d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 166d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// The expressions \c args and \c static_cast<Types&&>(args) both 167d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// contain parameter packs. 168ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie bool containsUnexpandedParameterPack() const { 169ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return ExprBits.ContainsUnexpandedParameterPack; 170d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 171d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 172bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// \brief Set the bit that describes whether this expression 173bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// contains an unexpanded parameter pack. 174bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void setContainsUnexpandedParameterPack(bool PP = true) { 175bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = PP; 176bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor } 177bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1804f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY; 1811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 182026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 183a6115068cde719142eb394db88612c185cabd05bEli Friedman /// be warned about if the result is unused. If so, fill in expr, location, 184a6115068cde719142eb394db88612c185cabd05bEli Friedman /// and ranges with expr to warn on and source locations/ranges appropriate 185a6115068cde719142eb394db88612c185cabd05bEli Friedman /// for a warning. 186a6115068cde719142eb394db88612c185cabd05bEli Friedman bool isUnusedResultAWarning(const Expr *&WarnExpr, SourceLocation &Loc, 187a6115068cde719142eb394db88612c185cabd05bEli Friedman SourceRange &R1, SourceRange &R2, 188a6115068cde719142eb394db88612c185cabd05bEli Friedman ASTContext &Ctx) const; 1891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1907eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// isLValue - True if this expression is an "l-value" according to 1917eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the rules of the current language. C and C++ give somewhat 1927eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// different rules for this concept, but in general, the result of 1937eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// an l-value expression identifies a specific object whereas the 1947eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// result of an r-value expression is a value detached from any 1957eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// specific storage. 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1977eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// C++0x divides the concept of "r-value" into pure r-values 1987eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// ("pr-values") and so-called expiring values ("x-values"), which 1997eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// identify specific objects that can be safely cannibalized for 2007eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// their resources. This is an unfortunate abuse of terminology on 2017eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the part of the C++ committee. In Clang, when we say "r-value", 2027eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// we generally mean a pr-value. 2037eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isLValue() const { return getValueKind() == VK_LValue; } 2047eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isRValue() const { return getValueKind() == VK_RValue; } 2057eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isXValue() const { return getValueKind() == VK_XValue; } 2067eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isGLValue() const { return getValueKind() != VK_RValue; } 2077eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall 2087eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall enum LValueClassification { 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 212fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 21386f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 214077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian LV_InvalidMessageExpression, 2152514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 216e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 21736d02af300a207242f0486b4255420d8be796b21Richard Smith LV_ClassTemporary, 21836d02af300a207242f0486b4255420d8be796b21Richard Smith LV_ArrayTemporary 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 2207eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// Reasons why an expression might not be an l-value. 2217eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall LValueClassification ClassifyLValue(ASTContext &Ctx) const; 22253202857c60214d80950a975e6e52aebf30bd16aEli Friedman 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 2251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 22844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 2290982205bade2fb4fc984c27b2ab401e683963b10James Dennett /// \param Loc [in,out] - A source location which *may* be filled 23044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 23144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 236fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 238ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 2405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 2414f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 242ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 24386f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 2442514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 245e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 246077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian MLV_InvalidMessageExpression, 24736d02af300a207242f0486b4255420d8be796b21Richard Smith MLV_ClassTemporary, 24836d02af300a207242f0486b4255420d8be796b21Richard Smith MLV_ArrayTemporary 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 25044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 25144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 2521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 2542111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 2552111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 2562111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2572111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 2582111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 2592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 2602111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 2612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 2622111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 2631c860d5640e8eebb11a5d515a761242b66761b0bPeter Collingbourne CL_AddressableVoid, // Void expression whose address can be taken in C. 2642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 2652111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 2662111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 26736d02af300a207242f0486b4255420d8be796b21Richard Smith CL_ClassTemporary, // A temporary of class type, or subobject thereof. 26836d02af300a207242f0486b4255420d8be796b21Richard Smith CL_ArrayTemporary, // A temporary of array type. 269077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian CL_ObjCMessageRValue, // ObjC message is an rvalue 2702111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 2712111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2722111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 2732111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 2742111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 2752111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 2762111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 2772111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 2782111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 2792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 2802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 2812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 2822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 2832111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2842111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2852111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 2862111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 2872111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2882111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 2892111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 2902111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2912111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 2922111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 2932111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 2942111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2952111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2962111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 2972111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2982111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 2992111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 3002111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 3012111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 3022111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 3042111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 3052111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 3062111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 3072111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 3082111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 309ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3102c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor /// \brief Create a simple, modifiably lvalue 3112c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor static Classification makeSimpleLValue() { 3122c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor return Classification(CL_LValue, CM_Modifiable); 3132c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor } 314ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3152111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 316369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Classify - Classify this expression according to the C++0x 3172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 3182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 3192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x defines ([basic.lval]) a new taxonomy of expressions to replace the 3202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 3212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 3222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 3232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 3242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 3252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 3262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 3272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 3282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 3292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 3302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 332369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief ClassifyModifiable - Classify this expression according to the 3332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x expression taxonomy, and see if it is valid on the left side 3342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 3352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 3362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 3372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 3382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 3392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 3402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 3412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 3422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 344f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKindForType - Given a formal return or parameter type, 345f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// give its value kind. 346f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static ExprValueKind getValueKindForType(QualType T) { 347f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall if (const ReferenceType *RT = T->getAs<ReferenceType>()) 3480943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall return (isa<LValueReferenceType>(RT) 3490943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue 3500943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : (RT->getPointeeType()->isFunctionType() 3510943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue : VK_XValue)); 352f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return VK_RValue; 353f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 354f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 355f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKind - The value kind that this expression produces. 356f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind getValueKind() const { 357f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprValueKind>(ExprBits.ValueKind); 358f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 359f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 360f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getObjectKind - The object kind that this expression produces. 361f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// Object kinds are meaningful only for expressions that yield an 362f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// l-value or x-value. 363f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprObjectKind getObjectKind() const { 364f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprObjectKind>(ExprBits.ObjectKind); 365f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 366f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 36756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool isOrdinaryOrBitFieldObject() const { 36856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprObjectKind OK = getObjectKind(); 36956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return (OK == OK_Ordinary || OK == OK_BitField); 37056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 37156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 372f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setValueKind - Set the value kind produced by this expression. 373f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setValueKind(ExprValueKind Cat) { ExprBits.ValueKind = Cat; } 374f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 375f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setObjectKind - Set the object kind produced by this expression. 376f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setObjectKind(ExprObjectKind Cat) { ExprBits.ObjectKind = Cat; } 377f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 3782111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 3792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 3802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 3822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 38333bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 38433bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 38533bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 3865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 38738d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 38838d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 38938d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 3901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 391f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// \brief If this expression is an l-value for an Objective C 392f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// property, find the underlying property reference expression. 393f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const ObjCPropertyRefExpr *getObjCProperty() const; 394f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 395093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 396093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 3974919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall 3984919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall /// \brief Returns whether this expression has a placeholder type. 3994919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall bool hasPlaceholderType() const { 4004919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return getType()->isPlaceholderType(); 4014919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall } 4024919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall 4034919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall /// \brief Returns whether this expression has a specific placeholder type. 4044919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall bool hasPlaceholderType(BuiltinType::Kind K) const { 40585def357129b6cdfd69a66ad0e6994506418a2a9John McCall assert(BuiltinType::isPlaceholderTypeKind(K)); 4064919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall if (const BuiltinType *BT = dyn_cast<BuiltinType>(getType())) 4074919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return BT->getKind() == K; 4084919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall return false; 4094919dfd54e2296ca997e3d1c9dab85976bba8e95John McCall } 410ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 4112b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 4122b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 4132b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 4142b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 4152b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 416ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 421282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// 422282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// Note: This does not perform the implicit conversions required by C++11 423282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// [expr.const]p5. 424590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 425590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 4265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 427f48fdb0937e67f691393f9ffdf75653e5128ea13Richard Smith bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const; 4280e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith 42970488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith /// isCXX98IntegralConstantExpr - Return true if this expression is an 43070488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith /// integral constant expression in C++98. Can only be used in C++. 43170488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith bool isCXX98IntegralConstantExpr(ASTContext &Ctx) const; 43270488e201ccd94d4bb1ef0868cc13cca2b7d4ff6Richard Smith 4334c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// isCXX11ConstantExpr - Return true if this expression is a constant 4344c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith /// expression in C++11. Can only be used in C++. 435282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// 436282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// Note: This does not perform the implicit conversions required by C++11 437282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /// [expr.const]p5. 4384c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith bool isCXX11ConstantExpr(ASTContext &Ctx, APValue *Result = 0, 4394c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith SourceLocation *Loc = 0) const; 4404c3fc9b38d3723f73e4ded594cebf38c76f91d93Richard Smith 441745f5147e065900267c85a5568785a1991d4838fRichard Smith /// isPotentialConstantExpr - Return true if this function's definition 442745f5147e065900267c85a5568785a1991d4838fRichard Smith /// might be usable in a constant expression in C++11, if it were marked 443745f5147e065900267c85a5568785a1991d4838fRichard Smith /// constexpr. Return false if the function can never produce a constant 444745f5147e065900267c85a5568785a1991d4838fRichard Smith /// expression, along with diagnostics describing why not. 445745f5147e065900267c85a5568785a1991d4838fRichard Smith static bool isPotentialConstantExpr(const FunctionDecl *FD, 446745f5147e065900267c85a5568785a1991d4838fRichard Smith llvm::SmallVectorImpl< 447745f5147e065900267c85a5568785a1991d4838fRichard Smith PartialDiagnosticAt> &Diags); 448745f5147e065900267c85a5568785a1991d4838fRichard Smith 4490e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// isConstantInitializer - Returns true if this expression can be emitted to 4500e35b4ecee380c2b4c33d75da6bc2fb6f6bc7df3Richard Smith /// IR as a constant, and thus can be used as a constant initializer in C. 4514204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 4521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4531e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalStatus is a struct with detailed info about an evaluation in progress. 4541e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalStatus { 45594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 45694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 45794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 4581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 459dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// Diag - If this is non-null, it will be filled in with a stack of notes 460dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// indicating why evaluation failed (or why it failed to produce a constant 461dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression). 462dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// If the expression is unfoldable, the notes will indicate why it's not 463dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// foldable. If the expression is foldable, but not a constant expression, 464dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// the notes will describes why it isn't a constant expression. If the 465dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith /// expression *is* a constant expression, no notes will be produced. 466dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith llvm::SmallVectorImpl<PartialDiagnosticAt> *Diag; 467dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith 468dd1f29b6d686899bfd033f26e16cb1621e5549e8Richard Smith EvalStatus() : HasSideEffects(false), Diag(0) {} 469e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 470e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 471e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 472e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 473e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 474e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 47594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 47694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 4771e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// EvalResult is a struct with detailed info about an evaluated expression. 4781e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith struct EvalResult : EvalStatus { 4791e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith /// Val - This is the value the expression can be folded to. 4801e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith APValue Val; 4811e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 4821e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // isGlobalLValue - Return true if the evaluated lvalue expression 4831e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith // is global. 4841e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith bool isGlobalLValue() const; 4851e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith }; 4861e12c59e8f9bb76c23628c4e0d0a1dfced0b1fa0Richard Smith 48751f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsRValue - Return true if this is a constant which we can fold to 48851f4708c00110940ca3f337961915f2ca1668375Richard Smith /// an rvalue using any crazy technique (that has nothing to do with language 48951f4708c00110940ca3f337961915f2ca1668375Richard Smith /// standards) that we want to, even if the expression has side-effects. If 49051f4708c00110940ca3f337961915f2ca1668375Richard Smith /// this function returns true, it returns the folded constant in Result. If 49151f4708c00110940ca3f337961915f2ca1668375Richard Smith /// the expression is a glvalue, an lvalue-to-rvalue conversion will be 49251f4708c00110940ca3f337961915f2ca1668375Richard Smith /// applied. 49351f4708c00110940ca3f337961915f2ca1668375Richard Smith bool EvaluateAsRValue(EvalResult &Result, const ASTContext &Ctx) const; 4945b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 495cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 496cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 497a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// any crazy technique that we want to, even if the expression has 498a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// side-effects. 4994ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsBooleanCondition(bool &Result, const ASTContext &Ctx) const; 500cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 50180d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith enum SideEffectsKind { SE_NoSideEffects, SE_AllowSideEffects }; 50280d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith 503a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith /// EvaluateAsInt - Return true if this is a constant which we can fold and 50480d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith /// convert to an integer, using any crazy technique that we want to. 50580d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith bool EvaluateAsInt(llvm::APSInt &Result, const ASTContext &Ctx, 50680d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith SideEffectsKind AllowSideEffects = SE_NoSideEffects) const; 507a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith 50851f4708c00110940ca3f337961915f2ca1668375Richard Smith /// isEvaluatable - Call EvaluateAsRValue to see if this expression can be 50951f4708c00110940ca3f337961915f2ca1668375Richard Smith /// constant folded without side-effects, but discard the result. 5104ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isEvaluatable(const ASTContext &Ctx) const; 511c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 5126ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 51351f4708c00110940ca3f337961915f2ca1668375Richard Smith /// which must be evaluated each time and must not be optimized away 5146ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 5156ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 5164ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool HasSideEffects(const ASTContext &Ctx) const; 51751f4708c00110940ca3f337961915f2ca1668375Richard Smith 51825d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor /// \brief Determine whether this expression involves a call to any function 51925d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor /// that is not trivial. 52025d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor bool hasNonTrivialCall(ASTContext &Ctx); 52125d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor 52251f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateKnownConstInt - Call EvaluateAsRValue and return the folded 52351f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. This must be called on an expression that constant folds to an 52451f4708c00110940ca3f337961915f2ca1668375Richard Smith /// integer. 525a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith llvm::APSInt EvaluateKnownConstInt(const ASTContext &Ctx) const; 52651fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 52751f4708c00110940ca3f337961915f2ca1668375Richard Smith /// EvaluateAsLValue - Evaluate an expression to see if we can fold it to an 52851f4708c00110940ca3f337961915f2ca1668375Richard Smith /// lvalue with link time known address, with no side-effects. 5294ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsLValue(EvalResult &Result, const ASTContext &Ctx) const; 5301b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 531099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// EvaluateAsInitializer - Evaluate an expression as if it were the 532099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// initializer of the given declaration. Returns true if the initializer 533099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// can be folded to a constant, and produces any relevant notes. In C++11, 534099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith /// notes will be produced if the expression is not a constant expression. 535099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith bool EvaluateAsInitializer(APValue &Result, const ASTContext &Ctx, 536099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith const VarDecl *VD, 537099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith llvm::SmallVectorImpl<PartialDiagnosticAt> &Notes) const; 538099e7f647ccda915513f2b2ec53352dc756082d3Richard Smith 53982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Enumeration used to describe the kind of Null pointer constant 54082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// returned from \c isNullPointerConstant(). 54182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth enum NullPointerConstantKind { 54282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is not a Null pointer constant. 54382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_NotNull = 0, 54482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 54582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a Null pointer constant built from a zero integer. 54682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_ZeroInteger, 54782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 54882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a C++0X nullptr. 54982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_CXX0X_nullptr, 55082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 55182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a GNU-style __null constant. 55282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_GNUNull 55382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth }; 55482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 555ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 556ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 557ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 558ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 559ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 560ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 561ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 562ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 563ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 564ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 565ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 566ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 567ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 568ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 569ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 57082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to 57182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// a Null pointer constant. The return value can further distinguish the 57282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// kind of NULL pointer constant that was detected. 57382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantKind isNullPointerConstant( 57482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth ASTContext &Ctx, 57582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantValueDependence NPC) const; 576efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 57744baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 5781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 579102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 5801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 58111ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 58211ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 58311ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 584864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// \brief Given an expression of bound-member type, find the type 585864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// of the member. Returns null if this is an *overloaded* bound 586864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// member expression. 587864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall static QualType findBoundMemberType(const Expr *expr); 588864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 58991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// IgnoreImpCasts - Skip past any implicit casts which might 59091a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall /// surround this expression. Only skips ImplicitCastExprs. 591f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreImpCasts() LLVM_READONLY; 59291a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 5937e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// IgnoreImplicit - Skip past any implicit AST nodes which might 5947e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall /// surround this expression. 595f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreImplicit() LLVM_READONLY { 596f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar return cast<Expr>(Stmt::IgnoreImplicit()); 597f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar } 5987e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 5994e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 6001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 6014e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 6024e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 603f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParens() LLVM_READONLY; 60456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 60556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 60627c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 607f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenCasts() LLVM_READONLY; 6081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 609ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off 610ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// any ParenExpr or ImplicitCastExprs, returning their operand. 611f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenImpCasts() LLVM_READONLY; 6122fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 6132f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// IgnoreConversionOperator - Ignore conversion operator. If this Expr is a 6142f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg /// call to a conversion operator, return the argument. 615f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreConversionOperator() LLVM_READONLY; 6162f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 617f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreConversionOperator() const LLVM_READONLY { 6182f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg return const_cast<Expr*>(this)->IgnoreConversionOperator(); 6192f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg } 6202f072b442879b8bba8c5dea11d7c61bedb1924aeHans Wennborg 621f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenImpCasts() const LLVM_READONLY { 6224d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 6234d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 624ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 625f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 626f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 627f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenLValueCasts() LLVM_READONLY; 628ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 629f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenLValueCasts() const LLVM_READONLY { 630f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 631f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 6324d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 633ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 634ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 635ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 636f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar Expr *IgnoreParenNoopCasts(ASTContext &Ctx) LLVM_READONLY; 6371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 638632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola /// Ignore parentheses and derived-to-base casts. 639632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola Expr *ignoreParenBaseCasts() LLVM_READONLY; 640632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola 641632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola const Expr *ignoreParenBaseCasts() const LLVM_READONLY { 642632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola return const_cast<Expr*>(this)->ignoreParenBaseCasts(); 643632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola } 644632fbaa22fbed7c090eb83775731bfff786c2198Rafael Espindola 6456eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 6466eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 6476eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 648ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// by semantic analysis for function calls, object constructions, etc. in 6496eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 6506eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 6516eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 6526eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 653ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 654558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 655558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 656558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 6572f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 65875e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Whether this expression is an implicit reference to 'this' in C++. 65975e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitCXXThis() const; 66091a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 661f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreImpCasts() const LLVM_READONLY { 66291a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return const_cast<Expr*>(this)->IgnoreImpCasts(); 66391a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall } 664f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParens() const LLVM_READONLY { 6654e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 6664e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 667f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenCasts() const LLVM_READONLY { 66856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 66956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 670f9ff5876289d5228c299b57416a62c8c3b848287Daniel Dunbar const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const LLVM_READONLY { 671ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 672ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 6731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 67413a140caba448a66ffcc5ff0d32a87d6e4f4ad3fAhmed Charles static bool hasAnyTypeDependentArguments(llvm::ArrayRef<Expr *> Exprs); 675898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 6768d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// \brief For an expression of class type or pointer to class type, 6778d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// return the most derived class decl the expression is known to refer to. 6780b4fe503ef00d9f8ea330850d3e3b303e9c7c876Rafael Espindola /// 6790b4fe503ef00d9f8ea330850d3e3b303e9c7c876Rafael Espindola /// If this expression is a cast, this method looks through it to find the 6808d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// most derived decl that can be inferred from the expression. 6818d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// This is valid because derived-to-base conversions have undefined 6828d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola /// behavior if the object isn't dynamically of the derived type. 6838d852e35adb46e0799538dfc9c80d44f27cd3597Rafael Espindola const CXXRecordDecl *getBestDynamicClassType() const; 6840b4fe503ef00d9f8ea330850d3e3b303e9c7c876Rafael Espindola 6851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 6871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6935549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 69756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 69856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// fixed type and value class. These don't correspond to concrete 69956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// syntax; instead they're used to express operations (usually copy 70056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operations) on values whose source is generally obvious from 70156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// context. 70256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass OpaqueValueExpr : public Expr { 70356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 70456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *SourceExpr; 70556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation Loc; 706ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 70756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 708ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK, 70997df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor ExprObjectKind OK = OK_Ordinary, 71097df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor Expr *SourceExpr = 0) 71156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 71297df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor T->isDependentType(), 71397df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor T->isDependentType() || 71497df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor (SourceExpr && SourceExpr->isValueDependent()), 715561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isInstantiationDependentType(), 716ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie false), 71797df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor SourceExpr(SourceExpr), Loc(Loc) { 71856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 71956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 72056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Given an expression which invokes a copy constructor --- i.e. a 72156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// CXXConstructExpr, possibly wrapped in an ExprWithCleanups --- 72256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// find the OpaqueValueExpr that's the source of the construction. 72356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static const OpaqueValueExpr *findInCopyConstruct(const Expr *expr); 72456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 72556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit OpaqueValueExpr(EmptyShell Empty) 72656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, Empty) { } 72756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 72856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Retrieve the location of this expression. 72956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getLocation() const { return Loc; } 730ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 731aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 73256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getSourceRange(); 73356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 73456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 7354f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { 73656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getExprLoc(); 73756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 73856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 73956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 74056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { return child_range(); } 74156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 74256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression of an opaque value expression is the 74356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which originally generated the value. This is 74456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// provided as a convenience for analyses that don't wish to 74556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// precisely model the execution behavior of the program. 74656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 74756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression is typically set when building the 74856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which binds the opaque value expression in the first 74956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// place. 75056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getSourceExpr() const { return SourceExpr; } 75156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 75256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 75356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == OpaqueValueExprClass; 75456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 75556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const OpaqueValueExpr *) { return true; } 75656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 75756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 758cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// \brief A reference to a declared variable, function, enum, etc. 759cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// [C99 6.5.1p2] 760cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 761cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// This encodes all the information about how a declaration is referenced 762cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// within an expression. 763cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 764cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// There are several optional constructs attached to DeclRefExprs only when 765cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// they apply in order to conserve memory. These are laid out past the end of 766cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// the object, and flags in the DeclRefExprBitfield track whether they exist: 767cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// 768cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// DeclRefExprBits.HasQualifier: 769cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has a C++ 770cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// nested-name-specifier. 7713aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// DeclRefExprBits.HasFoundDecl: 7723aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// Specifies when this declaration reference expression has a record of 7733aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// a NamedDecl (different from the referenced ValueDecl) which was found 7743aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth/// during name lookup and/or overload resolution. 775e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara/// DeclRefExprBits.HasTemplateKWAndArgsInfo: 776cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth/// Specifies when this declaration reference expression has an explicit 777e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara/// C++ template keyword and/or template argument list. 778f4b88a45902af1802a1cb42ba48b1c474474f228John McCall/// DeclRefExprBits.RefersToEnclosingLocal 779f4b88a45902af1802a1cb42ba48b1c474474f228John McCall/// Specifies when this declaration reference expression (validly) 780f4b88a45902af1802a1cb42ba48b1c474474f228John McCall/// refers to a local variable from a different function. 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 782cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The declaration that we are referencing. 783cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *D; 7842577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 785cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief The location of the declaration name itself. 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 7879e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 788cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// \brief Provides source/type location info for the declaration name 789cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth /// embedded in D. 7902577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 7912577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 7926857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 7936857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc &getInternalQualifierLoc() { 7947e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth assert(hasQualifier()); 7956857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return *reinterpret_cast<NestedNameSpecifierLoc *>(this + 1); 796a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 797cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth 7986857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief Helper to retrieve the optional NestedNameSpecifierLoc. 7996857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth const NestedNameSpecifierLoc &getInternalQualifierLoc() const { 8006857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalQualifierLoc(); 801a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 802096832c5ed5b9106fa177ebc148489760c3bc496John McCall 8033aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Test whether there is a distinct FoundDecl attached to the end of 8043aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// this DRE. 8053aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool hasFoundDecl() const { return DeclRefExprBits.HasFoundDecl; } 8063aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8073aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 8083aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// reference occured. 8093aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *&getInternalFoundDecl() { 8103aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth assert(hasFoundDecl()); 8113aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 8123aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(&getInternalQualifierLoc() + 1); 8133aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return *reinterpret_cast<NamedDecl **>(this + 1); 8143aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 8153aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8163aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Helper to retrieve the optional NamedDecl through which this 8173aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// reference occured. 8183aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getInternalFoundDecl() const { 8193aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return const_cast<DeclRefExpr *>(this)->getInternalFoundDecl(); 8203aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 8213aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 8223d13c5a1e72ed8f8be9c083791d30643d1b1ec43Daniel Dunbar DeclRefExpr(ASTContext &Ctx, 8233d13c5a1e72ed8f8be9c083791d30643d1b1ec43Daniel Dunbar NestedNameSpecifierLoc QualifierLoc, 824e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 825f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ValueDecl *D, bool refersToEnclosingLocal, 826f4b88a45902af1802a1cb42ba48b1c474474f228John McCall const DeclarationNameInfo &NameInfo, 8273aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD, 8282577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 829f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 8302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 831663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 832663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 833663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 8347e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8350da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 8360da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 8373d13c5a1e72ed8f8be9c083791d30643d1b1ec43Daniel Dunbar void computeDependence(ASTContext &C); 8389e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 840f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExpr(ValueDecl *D, bool refersToEnclosingLocal, QualType T, 841f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ExprValueKind VK, SourceLocation L, 8425b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor const DeclarationNameLoc &LocInfo = DeclarationNameLoc()) 843561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(DeclRefExprClass, T, VK, OK_Ordinary, false, false, false, false), 8445b8968cc599eb6100bb73ae87be9d6cd2577ac9eDouglas Gregor D(D), Loc(L), DNLoc(LocInfo) { 845cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth DeclRefExprBits.HasQualifier = 0; 846e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara DeclRefExprBits.HasTemplateKWAndArgsInfo = 0; 8473aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth DeclRefExprBits.HasFoundDecl = 0; 8487cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = 0; 849f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExprBits.RefersToEnclosingLocal = refersToEnclosingLocal; 8503d13c5a1e72ed8f8be9c083791d30643d1b1ec43Daniel Dunbar computeDependence(D->getASTContext()); 8510da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 8521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 853a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 85440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 855e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 856dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 857f4b88a45902af1802a1cb42ba48b1c474474f228John McCall bool isEnclosingLocal, 858a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 859f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 8603aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD = 0, 8610da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 862663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 8632577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 86440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 865e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 8662577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 867f4b88a45902af1802a1cb42ba48b1c474474f228John McCall bool isEnclosingLocal, 8682577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 869f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 8703aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *FoundD = 0, 8712577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 8722577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 873663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 874663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 8753aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasQualifier, 8763aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth bool HasFoundDecl, 877e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool HasTemplateKWAndArgsInfo, 878def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor unsigned NumTemplateArgs); 8797e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 880cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth ValueDecl *getDecl() { return D; } 881cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth const ValueDecl *getDecl() const { return D; } 882cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth void setDecl(ValueDecl *NewD) { D = NewD; } 883904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 8842577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 8852577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 8862577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 8872577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 8889e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 8890b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 890aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY; 891aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY; 892aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY; 8931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 894a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 895a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 896cb66cff8fdf641f57f85dedb515a5f3240e3a9bbChandler Carruth bool hasQualifier() const { return DeclRefExprBits.HasQualifier; } 8977e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 8987e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 899a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 900a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 901a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 902a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 9037e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 9046857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc().getNestedNameSpecifier(); 905a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 90640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 9077e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth /// \brief If the name was qualified, retrieves the nested-name-specifier 90840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// that precedes the name, with source-location information. 90940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 91040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 91140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 9127e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 9136857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth return getInternalQualifierLoc(); 91440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 91540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 9163aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Get the NamedDecl through which this reference occured. 9173aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// 9183aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// This Decl may be different from the ValueDecl actually referred to in the 9193aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// presence of using declarations, etc. It always returns non-NULL, and may 9203aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// simple return the ValueDecl when appropriate. 9213aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth NamedDecl *getFoundDecl() { 9223aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 9233aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 9243aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 9253aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// \brief Get the NamedDecl through which this reference occurred. 9263aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth /// See non-const variant. 9273aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth const NamedDecl *getFoundDecl() const { 9283aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth return hasFoundDecl() ? getInternalFoundDecl() : D; 9293aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth } 9303aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 931e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKWAndArgsInfo() const { 932e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return DeclRefExprBits.HasTemplateKWAndArgsInfo; 933096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 9347e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 935e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 936e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() { 937e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) 938e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return 0; 939e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 9403aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasFoundDecl()) 941e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 9423aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalFoundDecl() + 1); 9433aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth 9443aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth if (hasQualifier()) 945e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 9463aa8140bde5b9bedf13e46ec0a668daa54814196Chandler Carruth &getInternalQualifierLoc() + 1); 9477e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 948e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>(this + 1); 949e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 950e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 951e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 952e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() const { 953e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return const_cast<DeclRefExpr*>(this)->getTemplateKWAndArgsInfo(); 954e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 955e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 956e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the template keyword preceding 957e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// this name, if any. 958e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getTemplateKeywordLoc() const { 959e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 960e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->getTemplateKeywordLoc(); 961e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 962e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 963e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the left angle bracket starting the 964e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the name, if any. 965e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getLAngleLoc() const { 966e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 967e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->LAngleLoc; 968e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 969e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 970e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the right angle bracket ending the 971e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the name, if any. 972e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getRAngleLoc() const { 973e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasTemplateKWAndArgsInfo()) return SourceLocation(); 974e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->RAngleLoc; 975e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 976e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 977e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether the name in this declaration reference 978e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// was preceded by the template keyword. 979e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); } 980e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 981e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether this declaration reference was followed by an 982e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list. 983e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); } 984e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 985e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the explicit template argument list that followed the 986e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// member template name. 987e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 988e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara assert(hasExplicitTemplateArgs()); 989e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return *getTemplateKWAndArgsInfo(); 990096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 9917e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 992096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 993096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 994b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 995096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 996a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 997d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 998096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 999096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 1000096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 1001e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateArgumentListInfo *getOptionalExplicitTemplateArgs() const { 1002096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 1003096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 1004096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 10057e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1006d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1007d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1008d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1009096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 1010096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 1011d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 10127e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1013a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 1014a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 1015833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1016096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 1017a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 10187e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1019096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 1020a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 10217e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1022a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1023a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 1024a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 1025096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 1026a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 10277e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 1028096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 1029a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 10307e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 10317cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this expression refers to a function that 10327cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 10337cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 10347cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return DeclRefExprBits.HadMultipleCandidates; 10357cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 10367cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 10377cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a function that was resolved from an overloaded set having size 10387cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 10397cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 10407cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara DeclRefExprBits.HadMultipleCandidates = V; 10417cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 10427cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 1043f4b88a45902af1802a1cb42ba48b1c474474f228John McCall /// Does this DeclRefExpr refer to a local declaration from an 1044f4b88a45902af1802a1cb42ba48b1c474474f228John McCall /// enclosing function scope? 1045f4b88a45902af1802a1cb42ba48b1c474474f228John McCall bool refersToEnclosingLocal() const { 1046f4b88a45902af1802a1cb42ba48b1c474474f228John McCall return DeclRefExprBits.RefersToEnclosingLocal; 1047f4b88a45902af1802a1cb42ba48b1c474474f228John McCall } 1048f4b88a45902af1802a1cb42ba48b1c474474f228John McCall 10491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 105099e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 10531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 105477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 105563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10567e740bd36772aae16b5cc5e605998ccc5eaf26dbChandler Carruth 105760adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 10583397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1061d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 1062d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 1063227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 1064227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 1065227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 1066227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 106728ad063b279378b19cb0704f977429df366a151eNico Weber LFunction, // Same as Function, but as wide string. 1068848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 1069848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 1070848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 1071848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 1072227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 10731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1074227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 1075227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 1076227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 1077227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 10781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 1079f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 1080ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie type->isDependentType(), type->isDependentType(), 1081561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType(), 1082bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 1083f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 10841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 108517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 10861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 108717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 108817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1089227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 109017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 109117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 109217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 109317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 109417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1095848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 10963a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 1097aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { return SourceRange(Loc); } 1098227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 10991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 1101227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 1102d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 11031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 110477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 110563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 1106227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 1107227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 11089996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 11099996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 11109996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 11119996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 11129996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 11139996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 11149996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 11159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 11169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 11179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 11189996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 11199996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 11209996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 112191219326471798c7d3b02dc48691581580338969Benjamin Kramer unsigned BitWidth; 11229996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 11249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 11269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 11279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11289996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 112991219326471798c7d3b02dc48691581580338969Benjamin Kramer APNumericStorage() : VAL(0), BitWidth(0) { } 11309996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 11329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 11339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 11349996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 11359996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 11369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 11379996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 11389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 11399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 11409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 114191219326471798c7d3b02dc48691581580338969Benjamin Kramerclass APIntStorage : private APNumericStorage { 1142ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 1143ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie llvm::APInt getValue() const { return getIntValue(); } 11449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 11459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 11469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 1147bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramerclass APFloatStorage : private APNumericStorage { 1148ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikiepublic: 114931dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka llvm::APFloat getValue(bool IsIEEE) const { 115031dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka return llvm::APFloat(getIntValue(), IsIEEE); 115131dfd642d5ac33c4ee0cfe1d7a1d4da455dcc7a4Akira Hatanaka } 11529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 11539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 11549996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 11559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 11569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 115791219326471798c7d3b02dc48691581580338969Benjamin Kramerclass IntegerLiteral : public Expr, public APIntStorage { 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 11599996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 11619996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 11629996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 11639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 1167478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer IntegerLiteral(ASTContext &C, const llvm::APInt &V, QualType type, 1168478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer SourceLocation l); 1169a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 11701dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new integer literal with value 'V' and type 'type'. 11711dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param type - either IntTy, LongTy, LongLongTy, UnsignedIntTy, 11721dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// UnsignedLongTy, or UnsignedLongLongTy which should match the size of V 11731dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \param V - the value that the returned integer literal contains. 11749996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 11759996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 11761dd986dff9ddfbec687975700770bb377988e9edRichard Trieu /// \brief Returns a new empty integer literal. 11779996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 11780b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1179aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { return SourceRange(Loc); } 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1181313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 1182313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 1183313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 11840b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 11850b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 11861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 11901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 119177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 119263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 11965cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 11975cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum CharacterKind { 11985cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 11995cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 12005cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 12015cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 12025cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 12035cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 12045cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 12095cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor CharacterLiteral(unsigned value, CharacterKind kind, QualType type, 12105cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation l) 1211bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1212561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1213bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer Value(value), Loc(l) { 1214bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer CharacterLiteralBits.Kind = kind; 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12160b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 12170b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 12180b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 12190b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1220018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 1221bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer CharacterKind getKind() const { 1222bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer return static_cast<CharacterKind>(CharacterLiteralBits.Kind); 1223bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 12241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1225aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { return SourceRange(Loc); } 12261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12290b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 1230bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setKind(CharacterKind kind) { CharacterLiteralBits.Kind = kind; } 12310b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 12320b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 12331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 123777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 123877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 123963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1242bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramerclass FloatingLiteral : public Expr, private APFloatStorage { 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 12459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 1246478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer QualType Type, SourceLocation L); 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 124817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 1249478851c3ed6bd784e7377dffd8e57b200c1b9ba9Benjamin Kramer explicit FloatingLiteral(ASTContext &C, EmptyShell Empty); 125017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 12519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 12529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 12539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 12549996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 12559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 1256bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer llvm::APFloat getValue() const { 1257bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer return APFloatStorage::getValue(FloatingLiteralBits.IsIEEE); 1258bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 12599996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 1260bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer APFloatStorage::setValue(C, Val); 12619996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 126217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1263bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer bool isExact() const { return FloatingLiteralBits.IsExact; } 1264bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setExact(bool E) { FloatingLiteralBits.IsExact = E; } 1265c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 1266da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 1267da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 1268da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 1269da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 12701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 127117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 127217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 127317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1274aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { return SourceRange(Loc); } 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 12785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 12801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 128177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 128263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12855d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 12865d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 12875d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 12885d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 12895d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 12905d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 12915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 12925d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 12935d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 1294bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false, 1295561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false), 1296f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 12971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1298cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 12991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 1300cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 1301cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 13025549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 13035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1304cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1305cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 1306aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { return Val->getSourceRange(); } 13071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 13081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 13095d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 13105d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 13111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13125d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 131363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 13145d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 13155d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1316e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1317e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 1318e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1319a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1320c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1321c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1322690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1323690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 13248bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1325690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1326c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1327c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1328c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1329c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1330c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1331c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 13325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 13335cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorpublic: 13345cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor enum StringKind { 13355cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Ascii, 13365cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor Wide, 13375cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF8, 13385cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF16, 13395cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor UTF32 13405cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor }; 13415cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 13425cee1195584fa8672253139c86e922daeda69b9eDouglas Gregorprivate: 13433e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson friend class ASTStmtReader; 13443e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson 134564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman union { 134664f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const char *asChar; 134764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint16_t *asUInt16; 134864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman const uint32_t *asUInt32; 134964f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } StrData; 135064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned Length; 13510840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned CharByteWidth : 4; 13525cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor unsigned Kind : 3; 13530840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned IsPascal : 1; 13540840f2378e9b5764755c5dffd27d7878c7606a0cBenjamin Kramer unsigned NumConcatenated; 1355726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 13562085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1357f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1358561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false, false, 1359561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false) {} 13601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 136164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman static int mapCharByteWidth(TargetInfo const &target,StringKind k); 136264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 13635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 13642085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 13652085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 13665cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor static StringLiteral *Create(ASTContext &C, StringRef Str, StringKind Kind, 136765aa6885818d4b4eea2e5a9d12085b2398148662Jay Foad bool Pascal, QualType Ty, 1368a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 13692085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 13702085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 13715cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor static StringLiteral *Create(ASTContext &C, StringRef Str, StringKind Kind, 13725cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool Pascal, QualType Ty, 13735cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor SourceLocation Loc) { 13745cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor return Create(C, Str, Kind, Pascal, Ty, &Loc, 1); 13752085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1376a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1377673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1378673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1379673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1380686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef getString() const { 138164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman assert(CharByteWidth==1 138264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman && "This function is used in places that assume strings use char"); 138364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(StrData.asChar, getByteLength()); 138464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 138564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 13860982205bade2fb4fc984c27b2ab401e683963b10James Dennett /// Allow access to clients that need the byte representation, such as 13870982205bade2fb4fc984c27b2ab401e683963b10James Dennett /// ASTWriterStmt::VisitStringLiteral(). 138864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringRef getBytes() const { 1389e91e0ae772004912285ccc3848b27208da8c045bChris Lattner // FIXME: StringRef may not be the right type to use as a result for this. 1390e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 1) 1391e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StringRef(StrData.asChar, getByteLength()); 1392e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 4) 139364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return StringRef(reinterpret_cast<const char*>(StrData.asUInt32), 139464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman getByteLength()); 1395e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(CharByteWidth == 2 && "unsupported CharByteWidth"); 1396e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StringRef(reinterpret_cast<const char*>(StrData.asUInt16), 1397e91e0ae772004912285ccc3848b27208da8c045bChris Lattner getByteLength()); 1398b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 13992f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 14008ab09da1faaa33b9fa78de59cc4e191bfe9907b5Richard Trieu void outputString(raw_ostream &OS); 14018ab09da1faaa33b9fa78de59cc4e191bfe9907b5Richard Trieu 140264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman uint32_t getCodeUnit(size_t i) const { 1403e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(i < Length && "out of bounds access"); 1404e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 1) 140564f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman return static_cast<unsigned char>(StrData.asChar[i]); 1406e91e0ae772004912285ccc3848b27208da8c045bChris Lattner if (CharByteWidth == 4) 1407e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StrData.asUInt32[i]; 1408e91e0ae772004912285ccc3848b27208da8c045bChris Lattner assert(CharByteWidth == 2 && "unsupported CharByteWidth"); 1409e91e0ae772004912285ccc3848b27208da8c045bChris Lattner return StrData.asUInt16[i]; 141064f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman } 141164f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman 141264f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getByteLength() const { return CharByteWidth*Length; } 141364f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getLength() const { return Length; } 141464f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman unsigned getCharByteWidth() const { return CharByteWidth; } 1415673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1416673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 141764f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman void setString(ASTContext &C, StringRef Str, 141864f45a24b19eb89ff88f7c3ff0df9be8e861ac97Eli Friedman StringKind Kind, bool IsPascal); 1419673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 14205cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor StringKind getKind() const { return static_cast<StringKind>(Kind); } 1421ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1422ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 14235cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isAscii() const { return Kind == Ascii; } 14245cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isWide() const { return Kind == Wide; } 14255cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF8() const { return Kind == UTF8; } 14265cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF16() const { return Kind == UTF16; } 14275cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor bool isUTF32() const { return Kind == UTF32; } 14283e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool isPascal() const { return IsPascal; } 14295cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor 14308d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1431686775deca8b8685eb90801495880e3abdd844c2Chris Lattner StringRef Str = getString(); 1432b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1433b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 143433fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 143533fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 143633fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1437ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1438726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1439726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1440726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 14411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1442726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1443726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1444726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1445726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 14461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1447673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1448673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1449673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 1450ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 145108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 145208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 145308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 145408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 145508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 145608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 145708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 145808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 145908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 146008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1461673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1462b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1463b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1464b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 14655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1466aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 14671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 14685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 14715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 14731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 147477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 147563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 14765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 14795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 14815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 14825549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 14835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1485898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1486f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 1487bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->isTypeDependent(), val->isValueDependent(), 1488561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor val->isInstantiationDependent(), 1489bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->containsUnexpandedParameterPack()), 1490898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 14911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1492c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 14931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1494c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1495c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 14965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 14975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1498c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1499c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 1500aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { return SourceRange(L, R); } 15015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1502313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1503313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1504c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1505313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1506313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1507313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1508c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1509313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 15101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 15125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 15141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 151577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 151663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 15175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15200518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 15210518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 15225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1523dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1524dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1525dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1526dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1527dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1528dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1529dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 15305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 15315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15325baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 15335baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 15345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 15350799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 15365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 15370799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 15381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 15395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1540f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1541f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1542f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1543de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 1544bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->isValueDependent(), 1545ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (input->isInstantiationDependent() || 1546561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor type->isInstantiationDependentType()), 1547bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->containsUnexpandedParameterPack()), 15480799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 15495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15500b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 15511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 15522de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 15530b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15540799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 15550b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 15560b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 15580b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 15590b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 15615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 15620b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 15630b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 15652085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 15662de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 15672085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 15685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1569cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 15702085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 15712de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 15722085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 15735a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 15740799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 15750799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 15763c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15773c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementOp(Opcode Op) { 15783c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreInc || Op == UO_PostInc; 15793c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15802de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 15813c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementOp(getOpcode()); 15823c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15833c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15843c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isDecrementOp(Opcode Op) { 15853c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Op == UO_PreDec || Op == UO_PostDec; 15862de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15873c3b7f90a863af43fa63043d396553ecf205351cJohn McCall bool isDecrementOp() const { 15883c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isDecrementOp(getOpcode()); 15893c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 15903c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15913c3b7f90a863af43fa63043d396553ecf205351cJohn McCall static bool isIncrementDecrementOp(Opcode Op) { return Op <= UO_PreDec; } 15922de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 15933c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return isIncrementDecrementOp(getOpcode()); 15942de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15953c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 15962de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 15972de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 15982de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 15990799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 16001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 16025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 16035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 16045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1605bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1606bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1607bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1608bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1609bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1610bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1611bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1612bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1613aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 16145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 16155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 16165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 16175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 16185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16194f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { return Loc; } 16201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 16235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 16251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 162677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 162763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 16285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 16318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 16328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 16338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 16348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1635ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// double d; 16368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 16378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 16388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 16398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 16408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 16418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1642ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 16438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 16448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 16458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 16468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 16478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 16488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 16498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 16508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1651cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 16528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1653cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 16548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1655cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1656cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1657cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1658cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1659cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 16608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 16618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 16628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 16638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1664ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 16668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1667ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 16698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1670ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - An unsigned index into the array of Expr*'s stored after this node 16718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 16728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 16738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 16748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1675ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// - A CXXBaseSpecifier*, for references that look at a field in a 1676cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 16778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1678ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 16808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1681ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 16828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 16838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1684ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1686ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 16878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1688ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 16898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1690ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 16928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 16938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1694ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 16958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1696cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1697cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1698cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1699cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1700ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1702ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie Kind getKind() const { 17038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 17048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1705ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 17078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 17088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 17098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 17108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 17118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 17148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 17158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1716cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 17178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1718ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 17208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 17218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1722ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1723cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1724cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1725cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1726ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1727cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1728ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 17308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 17318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 17328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1733ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// contains the location of the period (if there is one) and the 17348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 1735aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { return Range; } 17368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 17378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1739ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 17418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 17428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 17438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 17448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 17458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 17468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1747ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1748ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfExpr(ASTContext &C, QualType type, 17498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1750ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode* compsPtr, unsigned numComps, 17518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 17528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 17538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 17558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1756ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 17578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1759ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1760ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie static OffsetOfExpr *Create(ASTContext &C, QualType type, 1761ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1762ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie OffsetOfNode* compsPtr, unsigned numComps, 17638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 17648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 17658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1766ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie static OffsetOfExpr *CreateEmpty(ASTContext &C, 17678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 17688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 17708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 17718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 17728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 17748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 17758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1776ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 17788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 17798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 17818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 17828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1783ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17848cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const OffsetOfNode &getComponent(unsigned Idx) const { 17858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 17868cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return reinterpret_cast<const OffsetOfNode *> (this + 1)[Idx]; 17878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 17908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 17918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 17928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1793ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 17948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 17958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 17968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 17978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 17988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 17998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 18008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 18018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 18028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18038cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getIndexExpr(unsigned Idx) const { 18048cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<OffsetOfExpr*>(this)->getIndexExpr(Idx); 18058cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 18068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 18088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 18098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 18108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 18118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1812ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 18138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 18148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 18158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1817aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 18188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 18198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 18228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 18238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 18248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 18268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 18278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 182863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 182963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = 183063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall reinterpret_cast<Stmt**>(reinterpret_cast<OffsetOfNode*>(this + 1) 183163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall + NumComps); 183263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumExprs); 183363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 18348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 18358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1836f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated) 1837f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// expression operand. Used for sizeof/alignof (C99 6.5.3.4) and 1838f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// vec_step (OpenCL 1.1 6.11.12). 1839f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourneclass UnaryExprOrTypeTraitExpr : public Expr { 1840d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1841a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1842d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1843d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 18445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 184542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 18465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1847f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, TypeSourceInfo *TInfo, 1848f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1849f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1850f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1851ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 18522850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1853bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->isDependentType(), 1854561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor TInfo->getType()->isInstantiationDependentType(), 1855bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->containsUnexpandedParameterPack()), 1856bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer OpLoc(op), RParenLoc(rp) { 1857bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.Kind = ExprKind; 1858bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = true; 1859a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1860ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1861ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 1862f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, Expr *E, 1863f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1864f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1865f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1866ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1867ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1868bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->isTypeDependent(), 1869561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor E->isInstantiationDependent(), 1870bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->containsUnexpandedParameterPack()), 1871bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer OpLoc(op), RParenLoc(rp) { 1872bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.Kind = ExprKind; 1873bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = false; 1874ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1875d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 18760518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 18770b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 1878f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne explicit UnaryExprOrTypeTraitExpr(EmptyShell Empty) 1879f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne : Expr(UnaryExprOrTypeTraitExprClass, Empty) { } 18800b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1881f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTrait getKind() const { 1882bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer return static_cast<UnaryExprOrTypeTrait>(UnaryExprOrTypeTraitExprBits.Kind); 1883f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne } 1884bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setKind(UnaryExprOrTypeTrait K) { UnaryExprOrTypeTraitExprBits.Kind = K;} 18850b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1886bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer bool isArgumentType() const { return UnaryExprOrTypeTraitExprBits.IsType; } 18870518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 18885ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 18895ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1890a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 18910518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 18925ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 18930518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1894caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 18950518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1896d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 18970518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1898caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1899f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return const_cast<UnaryExprOrTypeTraitExpr*>(this)->getArgumentExpr(); 1900caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 19010b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1902bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer void setArgument(Expr *E) { 1903bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer Argument.Ex = E; 1904bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = false; 1905bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer } 1906a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1907a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1908bb8a897f350f46475f36140480e82289f6baa020Benjamin Kramer UnaryExprOrTypeTraitExprBits.IsType = true; 19090b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 19100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 19110518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 19120518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 19130518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 19140518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 19150518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 19160518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 191776e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 19180b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 19190b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 19200b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 19210b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1922866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1923aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 1924866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1925866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 19265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 1928f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return T->getStmtClass() == UnaryExprOrTypeTraitExprClass; 19295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1930f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne static bool classof(const UnaryExprOrTypeTraitExpr *) { return true; } 19311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 193277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 193363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children(); 19345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 19375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 19385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 19395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 19415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 194277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 19431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 19445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 19455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 19462324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 1947f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 194873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 1949f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 19502850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 1951bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 1952561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 1953561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 1954bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 1955bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 19562850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 195773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 195873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 195973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 19601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1961cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1962cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1963cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1964cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 19652324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 19662324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 19672324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 19682324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 19692324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 197033fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 197133fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 197233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 197333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 19745549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 19755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1976cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1977cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 19785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 19795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1980cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 19811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 19835549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 198477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 19851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 19875549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 19882324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 19891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 19915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 19922324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 19931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 199477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 19955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 19961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 19971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1998aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 199977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 20005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2002026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 2003cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 2004cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 20054f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { return getBase()->getExprLoc(); } 20065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 20095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 20111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 201277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 201363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 201463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 201563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 20165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 20175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2019b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 20201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 2021b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 20221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 2023b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 2024b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 20255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 2026cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne enum { FN=0, PREARGS_START=1 }; 20275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 20285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 20295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 20301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2031b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 2032cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne // These versions of the constructor are for derived classes. 2033cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext& C, StmtClass SC, Expr *fn, unsigned NumPreArgs, 2034cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **args, unsigned numargs, QualType t, ExprValueKind VK, 2035cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SourceLocation rparenloc); 2036cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext &C, StmtClass SC, unsigned NumPreArgs, EmptyShell Empty); 2037cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 2038cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Stmt *getPreArg(unsigned i) { 2039cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2040cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 2041cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2042cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const Stmt *getPreArg(unsigned i) const { 2043cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2044cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 2045cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2046cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne void setPreArg(unsigned i, Stmt *PreArg) { 2047cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 2048cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[PREARGS_START+i] = PreArg; 2049cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2050cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 2051cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne unsigned getNumPreArgs() const { return CallExprBits.NumPreArgs; } 205242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 20535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 20541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 2055f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 20561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20571f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 2058ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 20591f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 20605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 20615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 206218b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 2063a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 2064d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 2065d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 2066d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 2067d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 2068d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 2069a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 2070a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 2071bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 2072bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 2073bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 2074a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 20755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 20765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 20781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2079aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the call arguments. 2080cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **getArgs() { 2081cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return reinterpret_cast<Expr **>(SubExprs+getNumPreArgs()+PREARGS_START); 2082cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2083d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith const Expr *const *getArgs() const { 2084d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith return const_cast<CallExpr*>(this)->getArgs(); 2085d0dcceae2a8ca0e37b5dd471a704de8583d49c95Richard Smith } 2086ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 20875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 20885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 20895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2090cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 20915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 20935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 2094cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 20955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2097934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 2098934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 2099934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 2100cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[Arg+getNumPreArgs()+PREARGS_START] = ArgExpr; 2101934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 21021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2103d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 2104d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 2105d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 21068189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 21071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 21095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 21101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2111cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_begin() { return SubExprs+PREARGS_START+getNumPreArgs(); } 2112cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_end() { 2113cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2114cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2115cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_begin() const { 2116cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs(); 2117cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 2118cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_end() const { 2119cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 2120cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 21211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 21235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 21245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 21255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2126cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 2127cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 2128180f47959a066795cc0f409433023af448bb0328Richard Smith unsigned isBuiltinCall() const; 21291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 21311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 21326dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 21336dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 21341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2135d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 21361f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2137866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 2138aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY; 2139aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY; 2140aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY; 21411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21434bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 21444bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 21455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 214788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 214877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 214963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 215063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], 215163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall &SubExprs[0]+NumArgs+getNumPreArgs()+PREARGS_START); 215263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 21535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 21545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2155ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 21565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 21575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 21586bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 21596857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth struct MemberNameQualifier { 21606857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The nested-name-specifier that qualifies the name, including 21616857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// source-location information. 21626857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth NestedNameSpecifierLoc QualifierLoc; 21636857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth 21646857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// \brief The DeclAccessPair through which the MemberDecl was found due to 21656857c3e12c86fd0271eb46baab5b18756a94f4cbChandler Carruth /// name qualifiers. 2166161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 21676bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 21686bb8017bb9e828d118e15e59d71c66bba323c364John McCall 2169ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 2170ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 21715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 21721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2173ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 2174ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 2175f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 21761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 21782577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 21792577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 21802577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 2181bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer /// MemberLoc - This is the location of the member name. 2182bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer SourceLocation MemberLoc; 2183bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer 2184ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 218583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 21861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 218783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 21886bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 21896bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 2190c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 21916bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 21921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2193e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief True if this member expression specified a template keyword 2194e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// and/or a template argument list explicitly, e.g., x->f<int>, 2195e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// x->template f, x->template f<int>. 2196e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// When true, an ASTTemplateKWAndArgsInfo structure and its 2197e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// TemplateArguments (if any) are allocated immediately after 2198e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// the MemberExpr or, if the member expression also has a qualifier, 2199e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// after the MemberNameQualifier structure. 2200e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool HasTemplateKWAndArgsInfo : 1; 22011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22027cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief True if this member expression refers to a method that 22037cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 22047cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool HadMultipleCandidates : 1; 22057cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 220683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 22076bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 22086bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 22096bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 221083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 221183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 221283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 22136bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 2214c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 2215c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 22161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2218f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2219f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 2220f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2221f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2222ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie base->isTypeDependent(), 2223561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isValueDependent(), 2224561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2225bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 2226bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer Base(base), MemberDecl(memberdecl), MemberDNLoc(NameInfo.getInfo()), 2227bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer MemberLoc(NameInfo.getLoc()), IsArrow(isarrow), 2228e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara HasQualifierOrFoundDecl(false), HasTemplateKWAndArgsInfo(false), 22297cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) { 22302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 22312577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 22322577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 22332577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 22342577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 22352577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 2236e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // for constructors, destructors and conversion operators). 22372577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 2238f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 2239f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 2240f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 2241bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 2242561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 2243bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 2244bbf4b22b3166e5065f4475006d83678e3e1d00a3Benjamin Kramer Base(base), MemberDecl(memberdecl), MemberDNLoc(), MemberLoc(l), 22452577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 2246e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara HasQualifierOrFoundDecl(false), HasTemplateKWAndArgsInfo(false), 22477cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates(false) {} 2248510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 22491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 225040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 2251e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 2252161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 22532577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 2254d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 2255f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 22561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 225788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 22585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 225957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 226057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 226157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 226257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 226357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 2264f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 2265f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 22661f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 22676bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 2268161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 22696bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 2270161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 2271161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 22726bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 22736bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 22746bb8017bb9e828d118e15e59d71c66bba323c364John McCall 22751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 22760979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 22770979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 22786bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 22791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 228183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 228283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 22831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 22846bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 228583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 22861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 228740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc.getNestedNameSpecifier(); 228840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 228940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 2290ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// \brief If the member name was qualified, retrieves the 229140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// nested-name-specifier that precedes the member name, with source-location 229240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// information. 229340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 229440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 229540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 2296ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 229740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc; 229883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 2299c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 2300e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 2301e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() { 2302e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) 2303e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return 0; 2304e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2305e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasQualifierOrFoundDecl) 2306e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>(this + 1); 2307e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2308e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return reinterpret_cast<ASTTemplateKWAndArgsInfo *>( 2309e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara getMemberQualifier() + 1); 2310e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2311e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2312e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Return the optional template keyword and arguments info. 2313e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara const ASTTemplateKWAndArgsInfo *getTemplateKWAndArgsInfo() const { 2314e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return const_cast<MemberExpr*>(this)->getTemplateKWAndArgsInfo(); 2315e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2316e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2317e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the template keyword preceding 2318e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// the member name, if any. 2319e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getTemplateKeywordLoc() const { 2320e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2321e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->getTemplateKeywordLoc(); 2322e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2323e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2324e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the left angle bracket starting the 2325e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the member name, if any. 2326e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getLAngleLoc() const { 2327e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2328e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->LAngleLoc; 2329e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara } 2330e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2331e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Retrieve the location of the right angle bracket ending the 2332e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list following the member name, if any. 2333e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation getRAngleLoc() const { 2334e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!HasTemplateKWAndArgsInfo) return SourceLocation(); 2335e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return getTemplateKWAndArgsInfo()->RAngleLoc; 2336c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2338e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// Determines whether the member name was preceded by the template keyword. 2339e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasTemplateKeyword() const { return getTemplateKeywordLoc().isValid(); } 2340e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2341e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// \brief Determines whether the member name was followed by an 2342e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /// explicit template argument list. 2343e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool hasExplicitTemplateArgs() const { return getLAngleLoc().isValid(); } 2344e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 2345d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 2346d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 2347d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 2348096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 2349096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 2350096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2351096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2352096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2353096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 2354096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 2355b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis ASTTemplateArgumentListInfo &getExplicitTemplateArgs() { 2356e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara assert(hasExplicitTemplateArgs()); 2357e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return *getTemplateKWAndArgsInfo(); 2358096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2359096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2360096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2361096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 2362096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 2363b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo &getExplicitTemplateArgs() const { 2364096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 2365096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2366096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2367096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 2368096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 2369096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 2370b0c3e0909bb04af0bfb82ad01ab6909649d68ccaArgyrios Kyrtzidis const ASTTemplateArgumentListInfo *getOptionalExplicitTemplateArgs() const { 2371096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 2372096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 2373d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 2374ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 2375c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 2376c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 2377833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 2378e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasExplicitTemplateArgs()) 23791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 23801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2381096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 2382c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2384c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 2385c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 23861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 2387e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (!hasExplicitTemplateArgs()) 23881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 23891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2390096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 2391c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 23921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23932577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 23942577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 23952577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 23962577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 23972577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 23982577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 23995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 24001f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 24011f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 2402ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 2403ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 2404026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 24051f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 24065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2407aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY; 2408aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY; 2409aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY; 2410ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 24114f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { return MemberLoc; } 24125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 241375e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Determine whether the base of this explicit is implicit. 241475e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitAccess() const { 241575e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor return getBase() && getBase()->isImplicitCXXThis(); 241675e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor } 24177cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 24187cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Returns true if this member expression refers to a method that 24197cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// was resolved from an overloaded set having size greater than 1. 24207cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara bool hadMultipleCandidates() const { 24217cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara return HadMultipleCandidates; 24227cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 24237cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// \brief Sets the flag telling whether this expression refers to 24247cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// a method that was resolved from an overloaded set having size 24257cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara /// greater than 1. 24267cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara void setHadMultipleCandidates(bool V = true) { 24277cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara HadMultipleCandidates = V; 24287cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara } 24297cc58b4c927fca539d43eaa58e00dca95946eb7cAbramo Bagnara 24301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 243183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 24325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 24341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24351237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 243663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 24374045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 24384045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 24394045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 24405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 2443aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 2444aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 24450fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 24460fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 24470fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 24480fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 24491d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 24501d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 24511d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 24523654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer /// The int part of the pair stores whether this expr is file scope. 24533654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer llvm::PointerIntPair<TypeSourceInfo *, 1, bool> TInfoAndScope; 24545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 2455aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 245642f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 2457f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 2458f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 2459ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie tinfo->getType()->isDependentType(), 2460bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->isValueDependent(), 2461561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (init->isInstantiationDependent() || 2462561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor tinfo->getType()->isInstantiationDependentType()), 2463bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->containsUnexpandedParameterPack()), 24643654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer LParenLoc(lparenloc), TInfoAndScope(tinfo, fileScope), Init(init) {} 24651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2466ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 2467ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 2468ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 2469ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 24705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 24715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 2472ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 2473e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 24743654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer bool isFileScope() const { return TInfoAndScope.getInt(); } 24753654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer void setFileScope(bool FS) { TInfoAndScope.setInt(FS); } 2476ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 24770fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 2478ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2479ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 24803654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer TypeSourceInfo *getTypeSourceInfo() const { 24813654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer return TInfoAndScope.getPointer(); 24823654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer } 24833654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer void setTypeSourceInfo(TypeSourceInfo *tinfo) { 24843654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer TInfoAndScope.setPointer(tinfo); 24853654c6993697a30af0c5a472963fe8c03e622b98Benjamin Kramer } 248642f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 2487aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 24880fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 24890fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 24900fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 24910fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 249273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 24930fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 249473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2495aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 24961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2498aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 2499aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 25001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25011237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 250263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Init, &Init+1); } 2503aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2504aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 250549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 250649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 250749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 250849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 25090835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2510cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 25115baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 25121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2513cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 25140835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2515409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 25161d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall void CheckCastConsistency() const; 2517409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2518f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2519f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2520f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2521f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2522f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2523654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis void setBasePathSize(unsigned basePathSize) { 2524654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis CastExprBits.BasePathSize = basePathSize; 2525654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis assert(CastExprBits.BasePathSize == basePathSize && 2526654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis "basePathSize doesn't fit in bits of CastExprBits.BasePathSize!"); 2527654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis } 2528654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis 25290835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2530f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2531f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2532f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2533898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2534898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2535898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2536898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2537898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 2538bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType() || (op && op->isValueDependent()), 2539ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie (ty->isInstantiationDependentType() || 2540561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (op && op->isInstantiationDependent())), 2541bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (ty->containsUnexpandedParameterPack() || 2542bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor op->containsUnexpandedParameterPack())), 25438e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2544daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 25458e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 2546654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 25471d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall#ifndef NDEBUG 2548daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 25491d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall#endif 2550f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 25511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2552087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2553f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 25548e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 2555654f6b2b53af2c950c62ef0161fa021648accbcbArgyrios Kyrtzidis setBasePathSize(BasePathSize); 25568e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 25571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25580835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 25598e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 25608e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2561f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2562f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 25630835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 25640835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2565087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2566087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 25676eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 25686eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 25696eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 25706eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 25716eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 25726eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 25736eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 257441b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2575f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2576f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 25778e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 25788e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2579f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2580f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2581f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2582f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2583f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2584f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 258541b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 25861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 25874bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 25884bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 25890835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 25900835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 25911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25920835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 259363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Op, &Op+1); } 25940835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 25950835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 259649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 259749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 259849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 259949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 260049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2601bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2602bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2603906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2604bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2605bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2606bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2607bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2608906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 26091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2610906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2611906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2612906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2613906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2614bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2615bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 26160835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2617906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2618f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 26195baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2620f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 26215baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 262290045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2623087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2624f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2625f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2626f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2627f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2628f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2629f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 26305baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2631f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 26325baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2633f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2634f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2635f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2636f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 26375baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2638f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2639f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2640087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 2641aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 26420835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 26430835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 2644aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY { 2645396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar return getSubExpr()->getLocStart(); 2646396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar } 2647aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY { 2648396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar return getSubExpr()->getLocEnd(); 2649396ec676b7a39665fa3a3f86f8e0520f8d7e93a8Daniel Dunbar } 265090045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 26511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 265349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 265449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 265549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 265649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 265791a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCallinline Expr *Expr::IgnoreImpCasts() { 265891a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall Expr *e = this; 265991a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall while (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e)) 266091a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall e = ice->getSubExpr(); 266191a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall return e; 266291a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall} 266391a5755ad73c5dc1dfb167e448fdd74e75a6df56John McCall 266449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 26651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 266649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 266749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 266849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 266949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 267049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 267149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 26725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 267349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 267449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 267549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 267649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 267749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2678906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2679906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 26800835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 26819d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 26829d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 26839d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 268449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 268549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2686f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2687f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2688f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2689f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 269049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2691db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2692f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2693f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2694db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 269549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 26969d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 26979d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 26989d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 26999d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 27009d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 270149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 270249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 27039d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 270449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 27051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27064bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 27074bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 270849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 270949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 271049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 271149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 27126eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 271349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 271449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 27156eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2716b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2717b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2718f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2719f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2720f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 272141b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2722f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 272341b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 272449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2725db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2726f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2727f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2728f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2729f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2730f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2731f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2732f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2733f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2734f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2735f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2736f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2737db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2738b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2739db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2740db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2741b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2742db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2743db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2744aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 2745b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 27465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 27495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27506eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 27515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 27525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 27543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 27553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 27563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 27573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 27583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 27593fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 27603fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 27613fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 27623fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 27633fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 27643fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 27653fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 27663fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 27673fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 27683fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 27693fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 27703fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 27715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 27725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 27735baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 27745baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 277517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 27760799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 27770799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 27780799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 277917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 27805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 27811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 27821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 278317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2784f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 278517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2786f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2787898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 2788bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2789561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2790561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2791bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2792bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 2793898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 27941237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 27951237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 27961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 27975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 27985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2800db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 28011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 28022de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2803db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 28044f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { return OpLoc; } 280517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2806db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2807db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 28080799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2809db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2810db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 28115549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2812db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 28135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2814db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2815db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2816aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 28175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 28185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 28215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 28225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 28235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28240799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2825a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2826063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2827063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2828063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2829063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2830063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2831063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2832063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2833063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 28345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2835200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 28362de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 28372de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 28380799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 28392de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 28400799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2841aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 28422de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 28430799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2844f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 28452de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 28460799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2847f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 28482de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 28490799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 28501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28512de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 28520799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2853aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 28542de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 28550799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2856f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 28570e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isAssignmentOp(Opcode Opc) { 28580e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return Opc >= BO_Assign && Opc <= BO_OrAssign; 28590e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 28600e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); } 28610e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 28620e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isCompoundAssignmentOp(Opcode Opc) { 28632de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 28642de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 28650e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isCompoundAssignmentOp() const { 28660e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isCompoundAssignmentOp(getOpcode()); 28670e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 28684b9c2d235fb9449e249d74f48ecfec601650de93John McCall static Opcode getOpForCompoundAssignment(Opcode Opc) { 28694b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(isCompoundAssignmentOp(Opc)); 2870b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall if (Opc >= BO_AndAssign) 2871b92e5d0acbb21e57498fcc4157e108a50c82b857John McCall return Opcode(unsigned(Opc) - BO_AndAssign + BO_And); 28724b9c2d235fb9449e249d74f48ecfec601650de93John McCall else 28734b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Opcode(unsigned(Opc) - BO_MulAssign + BO_Mul); 28744b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 28750e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 28760e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isShiftAssignOp(Opcode Opc) { 28772de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 28782de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 28790e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isShiftAssignOp() const { 28800e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isShiftAssignOp(getOpcode()); 28810e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 28821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 28844bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 28854bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 28865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 28881237c673c07f9d827129ba02720108816abde562Ted Kremenek 28891237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 289063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 289163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 289263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 28931237c673c07f9d827129ba02720108816abde562Ted Kremenek 28945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 289517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2896f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 28972333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 2898f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 28992333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 2900bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2901561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (lhs->isInstantiationDependent() || 2902561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 2903bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2904bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 29052333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 29061237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 29071237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 29085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2909ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 29101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 29112de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 29125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 29135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 29145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 29155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 2916ec5bc81fd55bfcc26fc4bde6d5e33113d94c2209Zhongxing Xu/// these operators, the operands are promoted, the arithmetic performed, an 29175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 29185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 29195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 29205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2921ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2922ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 29235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2924f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 2925f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2926f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 292717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 2928f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, true), 2929ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2930ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 29311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 29325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 29335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2935ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2936ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2937ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2938ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2939ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2940ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2941ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2942ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2943ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2944ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2945ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2946ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2947ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 29485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 29491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 29501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 29515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 29535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 295456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// AbstractConditionalOperator - An abstract base class for 295556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator and BinaryConditionalOperator. 295656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass AbstractConditionalOperator : public Expr { 295756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation QuestionLoc, ColonLoc; 295856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 295956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 296056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallprotected: 296156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, QualType T, 296256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprValueKind VK, ExprObjectKind OK, 2963561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor bool TD, bool VD, bool ID, 296456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool ContainsUnexpandedParameterPack, 296556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, 296656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation cloc) 2967561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(SC, T, VK, OK, TD, VD, ID, ContainsUnexpandedParameterPack), 296856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QuestionLoc(qloc), ColonLoc(cloc) {} 296956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 297056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, EmptyShell Empty) 297156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, Empty) { } 297256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 297356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 297456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getCond - Return the expression representing the condition for 297556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 297656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const; 297756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 297856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 297956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 298056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const; 298156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 298256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 298356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 298456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 298556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const; 298656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 298756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getQuestionLoc() const { return QuestionLoc; } 298856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getColonLoc() const { return ColonLoc; } 298956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 299056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 299156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == ConditionalOperatorClass || 299256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->getStmtClass() == BinaryConditionalOperatorClass; 299356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 299456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const AbstractConditionalOperator *) { return true; } 299556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 299656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 299756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator - The ?: ternary operator. The GNU "missing 299856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// middle" extension is a BinaryConditionalOperator. 299956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass ConditionalOperator : public AbstractConditionalOperator { 30001237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 30015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 300256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 300356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 30045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 300547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 300656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation CLoc, Expr *rhs, 30070943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 300856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, t, VK, OK, 3009898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 3010898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 3011898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 301256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (lhs->isTypeDependent() || rhs->isTypeDependent()), 301356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (cond->isValueDependent() || lhs->isValueDependent() || 301456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->isValueDependent()), 3015561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 3016561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 3017561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 3018bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 301956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall lhs->containsUnexpandedParameterPack() || 302056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 302156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QLoc, CLoc) { 30221237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 30231237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 30241237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 30251237c673c07f9d827129ba02720108816abde562Ted Kremenek } 30265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3027ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 3028ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 302956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, Empty) { } 3030ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 3031395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 303256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 30335549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 3034395a2abf0028968d85958610e393e067885dc14fTed Kremenek 303556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 303656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 303756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { return cast<Expr>(SubExprs[LHS]); } 30381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 303956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 304056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 304156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 30425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 3043ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 304456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 30455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 304647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 3047aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 30485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 30495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 30501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 30511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 30525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 30535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 30541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30551237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 305663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 305763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 305863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 30595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 30605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 306156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// BinaryConditionalOperator - The GNU extension to the conditional 306256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operator which allows the middle operand to be omitted. 306356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// 306456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// This is a different expression kind on the assumption that almost 306556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// every client ends up needing to know that these are different. 306656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass BinaryConditionalOperator : public AbstractConditionalOperator { 306756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall enum { COMMON, COND, LHS, RHS, NUM_SUBEXPRS }; 306856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 306956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the common condition/left-hand-side expression, which will be 307056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated as the opaque value 307156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the condition, expressed in terms of the opaque value 307256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the left-hand-side, expressed in terms of the opaque value 307356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the right-hand-side 307456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Stmt *SubExprs[NUM_SUBEXPRS]; 307556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *OpaqueValue; 307656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 307756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 307856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 307956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall BinaryConditionalOperator(Expr *common, OpaqueValueExpr *opaqueValue, 308056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *cond, Expr *lhs, Expr *rhs, 308156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, SourceLocation cloc, 308256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 308356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, t, VK, OK, 308456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isTypeDependent() || rhs->isTypeDependent()), 308556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isValueDependent() || rhs->isValueDependent()), 3086561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (common->isInstantiationDependent() || 3087561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 308856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->containsUnexpandedParameterPack() || 308956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 309056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall qloc, cloc), 309156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue(opaqueValue) { 309256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COMMON] = common; 309356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COND] = cond; 309456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[LHS] = lhs; 309556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[RHS] = rhs; 309697df54e0c075bc8d6a869597e771dad0c11a2180Douglas Gregor assert(OpaqueValue->getSourceExpr() == common && "Wrong opaque value"); 309756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 309856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 309956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Build an empty conditional operator. 310056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit BinaryConditionalOperator(EmptyShell Empty) 310156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, Empty) { } 310256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 310356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCommon - Return the common expression, written to the 310456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// left of the condition. The opaque value will be bound to the 310556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// result of this expression. 310656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCommon() const { return cast<Expr>(SubExprs[COMMON]); } 310756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 310856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getOpaqueValue - Return the opaque value placeholder. 310956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *getOpaqueValue() const { return OpaqueValue; } 311056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 311156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCond - Return the condition expression; this is defined 311256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 311356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 311456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 311556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getTrueExpr - Return the subexpression which will be 311656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condition evaluates to true; this is defined 311756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 311856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { 311956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[LHS]); 312056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 312156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 312256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getFalseExpr - Return the subexpression which will be 312356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condnition evaluates to false; this is 312456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// defined in terms of the opaque value. 312556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const { 312656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[RHS]); 312756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 3128ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3129aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 313056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return SourceRange(getCommon()->getLocStart(), getFalseExpr()->getLocEnd()); 313156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 313256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 313356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == BinaryConditionalOperatorClass; 313456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 313556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const BinaryConditionalOperator *) { return true; } 313656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 313756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // Iterators 313856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { 313956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return child_range(SubExprs, SubExprs + NUM_SUBEXPRS); 314056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 314156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 314256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 314356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getCond() const { 314456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 314556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getCond(); 314656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getCond(); 314756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 314856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 314956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getTrueExpr() const { 315056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 315156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getTrueExpr(); 315256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getTrueExpr(); 315356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 315456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 315556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getFalseExpr() const { 315656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 315756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getFalseExpr(); 315856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getFalseExpr(); 315956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 316056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 31616481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 31626481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 31635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 3164ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *Label; 31655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3166ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelDecl *L, 31676481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 3168561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false, 3169561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 31702333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 31711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31727d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 31731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 31747d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 31757d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 31767d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 31777d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 31787d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 31797d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 31807d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 3181aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 31825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 31835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 31841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3185ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *getLabel() const { return Label; } 3186ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void setLabel(LabelDecl *L) { Label = L; } 31877d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 31885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 31891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 31905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 31916481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 31921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31931237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 319463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 31955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3196ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3197ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 3198ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 3199ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 3200f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 3201f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 3202f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 3203ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 32045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 3205ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 3206ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 32072333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 3208561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // FIXME: Do we need to compute instantiation instantiation-dependence for 3209561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor // statements? (ugh!) 3210d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 3211d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 3212f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 3213561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor T->isDependentType(), false, false, false), 32142333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 32151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32166a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 32176a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 32186a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 32195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 32205549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 32216a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 32226a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 3223aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 3224ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 3225ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 32261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3227026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 32286a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 3229026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 32306a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 32311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3232ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 32331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 3234ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 3235ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 32361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32371237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 323863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&SubStmt, &SubStmt+1); } 3239ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 3240ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 3241d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 3242d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 3243d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 3244d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 3245d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 3246d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 3247d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 3248d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 3249d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 3250d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3251d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 3252d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 3253d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 3254d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 32555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 3256d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 3257d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3258d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 3259a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 32601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 3261bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor SourceLocation RP); 326294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 326394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 32641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 326594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 326694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 326794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 326894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 32691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 327094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 327194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 327294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 3273aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 3274d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 3275d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3276d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 32771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 3278d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3279d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 32801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3281d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 3282d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 3283d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 3284d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 32851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3286aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the array of expressions. 3287aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 3288ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 3289d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 3290d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 3291d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 32925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3293d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 3294d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 3295d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 32965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 3297d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 32981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3299888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 330094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 3301dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 3302dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 3303a6b8b2c09610b8bc4330e948ece8b940c2386406Richard Smith return getExpr(N+2)->EvaluateKnownConstInt(Ctx).getZExtValue(); 3304d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 33051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3306d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 330763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 330863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+NumExprs); 330963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3310d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 3311d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 3312d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 33131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 3314d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 33157976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 33167976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 33177976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 33187976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 33197976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 33207976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 3321d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 33221237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 33235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 3324d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 3325d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 3326f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 3327f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 3328ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 3329bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent, 3330561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (cond->isInstantiationDependent() || 3331561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor lhs->isInstantiationDependent() || 3332561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor rhs->isInstantiationDependent()), 3333bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 3334bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->containsUnexpandedParameterPack() || 3335bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 33361237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 33371237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 33381237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 33391237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 33401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 33417976932a1c256d447316ffac58e9821417725e34Eli Friedman 334244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 334344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 334444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 33457976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 33467976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 33474ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isConditionTrue(const ASTContext &C) const; 33487976932a1c256d447316ffac58e9821417725e34Eli Friedman 33497976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 33507976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 33514ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad Expr *getChosenSubExpr(const ASTContext &C) const { 33527976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 33537976932a1c256d447316ffac58e9821417725e34Eli Friedman } 33547976932a1c256d447316ffac58e9821417725e34Eli Friedman 33555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 335644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 33575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 335844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 33595549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 336044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 336144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 336244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 336344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 33641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 336544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 336644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 33671237c673c07f9d827129ba02720108816abde562Ted Kremenek 3368aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 3369d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 3370d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3371d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 33721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 3373d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3374d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 33751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33761237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 337763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 337863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 337963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3380d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 3381d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 33822d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 33832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 33842d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 33852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 33862d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 33872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 33882d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 33892d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 33902d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 33912d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 33922d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 33931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 3394561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false, 3395561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 3396f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 33972d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 339844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 339944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 340044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 34012d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 34022d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 340344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 34042d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 3405aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 34062d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 34072d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 34082d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 34091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 34102d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 34112d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 34121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34132d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 341463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 34152d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 34162d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 341774626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 34187c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 34195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 34202cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 34217c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 34227c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 34232cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 34242cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 3425f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 3426bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor t->isDependentType(), false, 3427561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (TInfo->getType()->isInstantiationDependentType() || 3428561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor e->isInstantiationDependent()), 3429bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (TInfo->getType()->containsUnexpandedParameterPack() || 3430bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor e->containsUnexpandedParameterPack())), 34312cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 34327c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 34337c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 34341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 343574626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 3436d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 3437d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 34385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 34395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 3440d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 3441d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 34422cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 34432cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 34442cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 3445d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 3446d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 34471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3448d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 3449d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 3450d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3451aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 34527c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 34531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 34547c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 34557c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 34567c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 34577c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 34581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34597c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 346063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 34617c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 34621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 34644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 34654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 34664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 34674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 34684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 34694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 34704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 34714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 3472196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 34734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 34744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 34754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 34764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 34774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 34784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 34794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 34804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 3481196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 34824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 34834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 34844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 34854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 34864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 34874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 34884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 34893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 34904c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 34914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 34924c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 3493196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 34944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 34954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 34964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 34974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 34984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 34994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 350066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 3501ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 3502709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 3503709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 350466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 35051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 35074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 35084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 35094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 35104423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief Either: 35114423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes an array with more elements than 35124423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// there are initializers in the list, specifies an expression to be used 35134423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// for value initialization of the rest of the elements. 35144423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// Or 35154423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes a union, specifies which 35164423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// field within the union will be initialized. 35174423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis llvm::PointerUnion<Expr *, FieldDecl *> ArrayFillerOrUnionFieldInit; 35180bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 351966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 3520709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 3521709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 3522ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 3523d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3524d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 3525709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 3526709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 35271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3528ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 35291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3530aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the set of initializers. 3531aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getInits() { return reinterpret_cast<Expr **>(InitExprs.data()); } 3532ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 353316c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 3534c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 35354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 353666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 35371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 353816c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 3539c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 35404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 354166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 35421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 3544c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 35459e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 35469e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 3547c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 3548fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 3549709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 35501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 35524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 35534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 35544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 35554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 35564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 35574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 35584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 35594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 35604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 35614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 35624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 35634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 35644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 3565fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// accommodate the new entry. 3566709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 3567c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 35684423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief If this initializer list initializes an array with more elements 35694423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// than there are initializers in the list, specifies an expression to be 35704423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// used for value initialization of the rest of the elements. 35714423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis Expr *getArrayFiller() { 35724423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<Expr *>(); 35734423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 35748cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const Expr *getArrayFiller() const { 35758cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getArrayFiller(); 35768cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 35773e8dc2ac8926dfbebd8f2f6b74ceba4befccd4d2Argyrios Kyrtzidis void setArrayFiller(Expr *filler); 35784423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 357921f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// \brief Return true if this is an array initializer and its array "filler" 358021f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis /// has been set. 358121f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis bool hasArrayFiller() const { return getArrayFiller(); } 358221f77cd0c3da8a1dbaf6245cae43baf4c0b80ea4Argyrios Kyrtzidis 35830bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 35840bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 35850bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 35860bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 35870bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 35880bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 35894423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis FieldDecl *getInitializedFieldInUnion() { 35904423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<FieldDecl *>(); 35914423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 35928cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne const FieldDecl *getInitializedFieldInUnion() const { 35938cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne return const_cast<InitListExpr *>(this)->getInitializedFieldInUnion(); 35948cad3046be06ea73ff8892d947697a21d7a440d3Peter Collingbourne } 35954423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis void setInitializedFieldInUnion(FieldDecl *FD) { 35964423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis ArrayFillerOrUnionFieldInit = FD; 35974423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 35980bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3599c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3600c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3601b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3602b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3603b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 36041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3605fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith // Is this an initializer for an array of characters, initialized by a string 3606fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith // literal or an @encode? 3607fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith bool isStringLiteralInit() const; 3608fe587201feaebc69e6d18858bea85c77926b6ecfRichard Smith 3609d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3610d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3611d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 361287fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 361387fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 36144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 36154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 36164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 36171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 36184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 36194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 36204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 362132cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl bool hadArrayRangeDesignator() const { 362232cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl return InitListExprBits.HadArrayRangeDesignator != 0; 362332cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl } 36241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 362532cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl InitListExprBits.HadArrayRangeDesignator = ARD; 362632cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl } 362732cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl 362832cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl bool initializesStdInitializerList() const { 362932cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl return InitListExprBits.InitializesStdInitializerList != 0; 363032cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl } 363132cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl void setInitializesStdInitializerList(bool ISIL = true) { 363232cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl InitListExprBits.InitializesStdInitializerList = ISIL; 3633a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3634a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 3635aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY; 3636c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 363766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 36381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 363966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 364066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 36411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 364266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 364363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 364463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall if (InitExprs.empty()) return child_range(); 364563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&InitExprs[0], &InitExprs[0] + InitExprs.size()); 364663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 36471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3648709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 36498111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3650709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 36518111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 36521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3653ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 36548111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3655ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 36568111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3657ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 36588111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3659ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 36608111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 36614423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 36624423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtReader; 36634423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtWriter; 366466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 366566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 366605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 366705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 366805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 366905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 367005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 367105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 367205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 36731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 367405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 367505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 367605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 367705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 367805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 367905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 368005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 368105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 368205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 368305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 368405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 368505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 368605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3687ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3688ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3689ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3690ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3691ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 369205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 369305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 369405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 369505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3696eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 369705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3698eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 369905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 370005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 370105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 370205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 370305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 370405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 370505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 370605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 370705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3708a72c352e4950cb487942427550777378b68dc078Benjamin Kramer /// \brief The designators in this designated initialization 3709a72c352e4950cb487942427550777378b68dc078Benjamin Kramer /// expression. 3710a72c352e4950cb487942427550777378b68dc078Benjamin Kramer Designator *Designators; 3711a72c352e4950cb487942427550777378b68dc078Benjamin Kramer 3712ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3713319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3714ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3715eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 37169ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 37179ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 371805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3719d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3720d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3721a72c352e4950cb487942427550777378b68dc078Benjamin Kramer NumDesignators(0), NumSubExprs(NumSubExprs), Designators(0) { } 3722d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 372305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 372405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 372505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 372605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 372705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 372805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 372905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 373005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 373105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 373205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 37331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 373405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 373505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 37361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 373705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 373805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 373905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 374005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 374105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 374205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 374305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 374405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 374505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 374605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 374705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 374805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 374905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 375005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 375105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 37521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 375305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 375405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 375505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 375605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 375705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 375805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 375905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 376005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 376105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 376205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 376305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 376405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 376505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 376605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 376705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 376805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 376905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 377005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 377105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 377205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 377305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 377405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 377505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 377605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 377705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3778ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3779ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 378005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 37811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 37821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 378305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 378405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 378505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 378605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 378705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 378805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 378905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 37901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 379105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 379205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 379305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 379405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 379505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 379605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 379705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 379805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 379905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 38001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 380105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 380205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 380305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 380405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 380505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 380605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 380705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 380805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 380905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 381005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 381105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 381205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3813b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth IdentifierInfo *getFieldName() const; 381405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3815b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth FieldDecl *getField() const { 381605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 381705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 381805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 381905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 382005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 382105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 382205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 382305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 382405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 382505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 382605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 382705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 382887f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 382987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 383087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 383187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 383287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 383305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 383405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 383505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 383605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 383705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 383805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 383905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 384005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 384105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 384205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 384305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 384405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 384505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 384605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 384705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 384805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 384905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 385005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 385105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 385205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 385305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 385405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 38554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3856d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3857d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3858d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3859d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3860d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3861d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 38624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 38634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 38644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 38654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 38664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 38674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 386824f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceLocation getEndLocation() const { 386924f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return Kind == FieldDesignator ? getFieldLoc() : getRBracketLoc(); 387024f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 3871aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 387224f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return SourceRange(getStartLocation(), getEndLocation()); 387324f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 387405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 387505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 38761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 387705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 387805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 387905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3880eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 388105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3882d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3883d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 388405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 388505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 388605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 388705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 3888b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef Designator *designators_iterator; 3889ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 38901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 38911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3892ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 389305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3894b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef const Designator *const_designators_iterator; 3895b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_begin() const { return Designators; } 3896b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_designators_iterator designators_end() const { 3897b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return Designators + NumDesignators; 3898b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3899b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 3900cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 3901cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 3902cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 3903cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 3904cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3905cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 3906cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 3907cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3908cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 3909b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth typedef std::reverse_iterator<const_designators_iterator> 3910b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator; 3911b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rbegin() const { 3912b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_end()); 3913b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3914b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth const_reverse_designators_iterator designators_rend() const { 3915b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth return const_reverse_designators_iterator(designators_begin()); 3916b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth } 3917b11382497a923b0d7009e85a1d8eb7bf93ec6d0dChandler Carruth 3918711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3919711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3920ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void setDesignators(ASTContext &C, const Designator *Desigs, 3921319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3922d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 392305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 392405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 392505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 392605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 392705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 392805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 392905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3930d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 393105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 393205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3933eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3934eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3935d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 393605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 393705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 39381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 393905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 394005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 394105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 394205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 394305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 394405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 394505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3946d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3947d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3948d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3949d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3950d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3951d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3952d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3953d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3954d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3955d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3956d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3957d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3958d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3959d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3960d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3961d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3962d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3963d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3964d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3965d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3966ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3967ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3968319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3969ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3970ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 397124f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getDesignatorsSourceRange() const; 397224f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara 3973aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY; 397405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 397505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 39761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 397705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 397805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 397905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 398005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 398163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 398263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = reinterpret_cast<Stmt**>(this + 1); 398363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumSubExprs); 398463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 39853498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 39863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 39873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 39883498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 39893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 39901a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 39911a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 39923498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 39931a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 39941a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 39951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 39963498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 39971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 3998f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 3999561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false, false, ty->isInstantiationDependentType(), false) { } 40003498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 4001d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 4002d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 4003d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 4004d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 40051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 40063498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 40073498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 40083498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 40093498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 4010aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 40113498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 40123498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 40133498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 40143498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 401563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 401605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 401705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 40182ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 40192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 40202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 40212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 40222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 40232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 40242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 40251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 40265b9cc5df25c2198f270dd1d5c438fdce70d4051dSebastian Redl unsigned numexprs, SourceLocation rparenloc); 40272ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 40282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 402937bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 40301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40312ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 40321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 40342ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 40352ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 40362ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 40371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 40392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 40402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 40412ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 40422ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 404383ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 40441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40452ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 40462ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 40472ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 4048aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 40492ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 40501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 40512ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 40521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 40532ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 40542ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 40551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40562ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 405763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 405863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&Exprs[0], &Exprs[0]+NumExprs); 405963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 406037bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 406160adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 40623397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 40632ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 40642ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 40651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4066ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// \brief Represents a C11 generic selection. 4067f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4068ffbe9b9c64ab2e94b9d48ec56e511f75826fc80aBenjamin Kramer/// A generic selection (C11 6.5.1.1) contains an unevaluated controlling 4069f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression, followed by one or more generic associations. Each generic 4070f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association specifies a type name and an expression, or "default" and an 4071f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression (in which case it is known as a default generic association). 4072f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The type and value of the generic selection are identical to those of its 4073f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// result expression, which is defined as the expression in the generic 4074f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association with a type name that is compatible with the type of the 4075f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// controlling expression, or the expression in the default generic association 4076f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// if no types are compatible. For example: 4077f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4078f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @code 4079f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// _Generic(X, double: 1, float: 2, default: 3) 4080f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @endcode 4081f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4082f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The above expression evaluates to 1 if 1.0 is substituted for X, 2 if 1.0f 4083f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// or 3 if "hello". 4084f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4085f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// As an extension, generic selections are allowed in C++, where the following 4086f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// additional semantics apply: 4087f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 4088f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Any generic selection whose controlling expression is type-dependent or 4089f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which names a dependent type in its association list is result-dependent, 4090f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which means that the choice of result expression is dependent. 4091f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Result-dependent generic associations are both type- and value-dependent. 4092f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourneclass GenericSelectionExpr : public Expr { 4093f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne enum { CONTROLLING, END_EXPR }; 4094f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes; 4095f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Stmt **SubExprs; 4096f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, ResultIndex; 4097f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, DefaultLoc, RParenLoc; 4098f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4099f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbournepublic: 4100f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 4101f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 4102f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 4103f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 4104f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 4105f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack, 4106f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned ResultIndex); 4107f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4108f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// This constructor is used in the result-dependent case. 4109f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 4110f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 4111f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 4112f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 4113f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 4114f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack); 4115f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4116f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne explicit GenericSelectionExpr(EmptyShell Empty) 4117f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne : Expr(GenericSelectionExprClass, Empty) { } 4118f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4119f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getNumAssocs() const { return NumAssocs; } 4120f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4121f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getGenericLoc() const { return GenericLoc; } 4122f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getDefaultLoc() const { return DefaultLoc; } 4123f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getRParenLoc() const { return RParenLoc; } 4124f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4125f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getAssocExpr(unsigned i) const { 4126f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[END_EXPR+i]); 4127f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4128f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getAssocExpr(unsigned i) { return cast<Expr>(SubExprs[END_EXPR+i]); } 4129f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4130f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) const { 4131f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return AssocTypes[i]; 4132f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4133f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) { return AssocTypes[i]; } 4134f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4135f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne QualType getAssocType(unsigned i) const { 4136f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne if (const TypeSourceInfo *TS = getAssocTypeSourceInfo(i)) 4137f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return TS->getType(); 4138f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne else 4139f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return QualType(); 4140f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4141f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4142f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getControllingExpr() const { 4143f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[CONTROLLING]); 4144f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4145f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getControllingExpr() { return cast<Expr>(SubExprs[CONTROLLING]); } 4146f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4147f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// Whether this generic selection is result-dependent. 4148f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool isResultDependent() const { return ResultIndex == -1U; } 4149f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4150f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The zero-based index of the result expression's generic association in 4151f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// the generic selection's association list. Defined only if the 4152f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4153f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getResultIndex() const { 4154f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne assert(!isResultDependent() && "Generic selection is result-dependent"); 4155f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return ResultIndex; 4156f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4157f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4158f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The generic selection's result expression. Defined only if the 4159f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 4160f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getResultExpr() const { return getAssocExpr(getResultIndex()); } 4161f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getResultExpr() { return getAssocExpr(getResultIndex()); } 4162f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4163aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 4164f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return SourceRange(GenericLoc, RParenLoc); 4165f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4166f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const Stmt *T) { 4167f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return T->getStmtClass() == GenericSelectionExprClass; 4168f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4169f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const GenericSelectionExpr *) { return true; } 4170f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4171f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne child_range children() { 4172f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return child_range(SubExprs, SubExprs+END_EXPR+NumAssocs); 4173f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 4174f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 4175f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne friend class ASTStmtReader; 4176f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne}; 4177f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 41784eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 41794eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 41804eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 41814eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 4182a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4183a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 4184a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 4185a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 4186a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 418773525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 418873525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 418973525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 4190a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 4191a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 4192d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 4193a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 4194a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 4195f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 4196f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 41970943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 41980943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 4199bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 4200561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor base->isInstantiationDependent(), 4201bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 4202d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 42031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4204d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 4205d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 4206d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 4207d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4208a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 4209a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 4210d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 4211d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4212d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 4213d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 4214d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4215d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 4216d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 4217d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 4218a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 4219a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 42201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4221a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 4222a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 4223a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 42241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4225a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 4226a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 4227686775deca8b8685eb90801495880e3abdd844c2Chris Lattner void getEncodedElementAccess(SmallVectorImpl<unsigned> &Elts) const; 42281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4229aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 4230a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 4231a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 42321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42332140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 42342140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 42352140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 42361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 42381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 4239a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 4240a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 42411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4242a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 424363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 4244a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 4245a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 4246a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 424756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 42489c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 42494eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 425056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 425156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 42524eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 4253469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall BlockExpr(BlockDecl *BD, QualType ty) 4254f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 4255ec79d877c1998366480d97a7a6c94e15c053edd8Douglas Gregor ty->isDependentType(), ty->isDependentType(), 4256ec79d877c1998366480d97a7a6c94e15c053edd8Douglas Gregor ty->isInstantiationDependentType() || BD->isDependentContext(), 4257561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor false), 4258469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall TheBlock(BD) {} 42599c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 426084af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 426184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 426284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 4263d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 426456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 426584af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 426684af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 426756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 426856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 426956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 427056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 42719c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 4272aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 427356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 42749c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 42759c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 427656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 4277a345edb668380691fc92d4e4aa0a5ffec366ca6aJohn McCall const FunctionProtoType *getFunctionType() const; 427856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 42791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 42809c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 42814eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 42824eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 42831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42844eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 428563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 42864eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 42871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 428861eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// AsTypeExpr - Clang builtin function __builtin_astype [OpenCL 6.2.4.2] 428961eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// This AST node provides support for reinterpreting a type to another 429061eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner/// type of the same size. 4291379010addb0e84fd0fbc37c829baf658958521bdJohn McCallclass AsTypeExpr : public Expr { // Should this be an ExplicitCastExpr? 429261eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerprivate: 4293379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Stmt *SrcExpr; 429461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, RParenLoc; 4295379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4296379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTReader; 4297379010addb0e84fd0fbc37c829baf658958521bdJohn McCall friend class ASTStmtReader; 4298379010addb0e84fd0fbc37c829baf658958521bdJohn McCall explicit AsTypeExpr(EmptyShell Empty) : Expr(AsTypeExprClass, Empty) {} 4299ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 430061eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattnerpublic: 430161eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner AsTypeExpr(Expr* SrcExpr, QualType DstType, 430261eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner ExprValueKind VK, ExprObjectKind OK, 430361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner SourceLocation BuiltinLoc, SourceLocation RParenLoc) 4304ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie : Expr(AsTypeExprClass, DstType, VK, OK, 4305561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType(), 4306561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor DstType->isDependentType() || SrcExpr->isValueDependent(), 4307561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->isInstantiationDependentType() || 4308561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->isInstantiationDependent()), 4309561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor (DstType->containsUnexpandedParameterPack() || 4310561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor SrcExpr->containsUnexpandedParameterPack())), 4311379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SrcExpr(SrcExpr), BuiltinLoc(BuiltinLoc), RParenLoc(RParenLoc) {} 4312ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 431361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner /// getSrcExpr - Return the Expr to be converted. 4314379010addb0e84fd0fbc37c829baf658958521bdJohn McCall Expr *getSrcExpr() const { return cast<Expr>(SrcExpr); } 4315379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4316379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getBuiltinLoc - Return the location of the __builtin_astype token. 4317379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4318379010addb0e84fd0fbc37c829baf658958521bdJohn McCall 4319379010addb0e84fd0fbc37c829baf658958521bdJohn McCall /// getRParenLoc - Return the location of final right parenthesis. 4320379010addb0e84fd0fbc37c829baf658958521bdJohn McCall SourceLocation getRParenLoc() const { return RParenLoc; } 4321ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 4322aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 432361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner return SourceRange(BuiltinLoc, RParenLoc); 432461eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner } 4325ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 432661eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner static bool classof(const Stmt *T) { 4327ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie return T->getStmtClass() == AsTypeExprClass; 432861eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner } 432961eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner static bool classof(const AsTypeExpr *) { return true; } 4330ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 433161eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner // Iterators 4332379010addb0e84fd0fbc37c829baf658958521bdJohn McCall child_range children() { return child_range(&SrcExpr, &SrcExpr+1); } 433361eee0ca33b29e102f11bab77c8b74cc00e2392bTanya Lattner}; 4334276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 43354b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr - An expression which accesses a pseudo-object 43364b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// l-value. A pseudo-object is an abstract object, accesses to which 43374b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// are translated to calls. The pseudo-object expression has a 43384b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// syntactic form, which shows how the expression was actually 43394b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// written in the source code, and a semantic form, which is a series 43404b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// of expressions to be executed in order which detail how the 43414b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// operation is actually evaluated. Optionally, one of the semantic 43424b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// forms may also provide a result value for the expression. 43434b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 43444b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// If any of the semantic-form expressions is an OpaqueValueExpr, 43454b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// that OVE is required to have a source expression, and it is bound 43464b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// to the result of that source expression. Such OVEs may appear 43474b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// only in subsequent semantic-form expressions and as 43484b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// sub-expressions of the syntactic form. 43494b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// 43504b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// PseudoObjectExpr should be used only when an operation can be 43514b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// usefully described in terms of fairly simple rewrite rules on 43524b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// objects and functions that are meant to be used by end-developers. 43534b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// For example, under the Itanium ABI, dynamic casts are implemented 43544b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// as a call to a runtime function called __dynamic_cast; using this 43554b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// class to describe that would be inappropriate because that call is 43564b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// not really part of the user-visible semantics, and instead the 43574b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// cast is properly reflected in the AST and IR-generation has been 43584b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// taught to generate the call as necessary. In contrast, an 43594b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// Objective-C property access is semantically defined to be 43604b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// equivalent to a particular message send, and this is very much 43614b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// part of the user model. The name of this class encourages this 43624b9c2d235fb9449e249d74f48ecfec601650de93John McCall/// modelling design. 43634b9c2d235fb9449e249d74f48ecfec601650de93John McCallclass PseudoObjectExpr : public Expr { 43644b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.NumSubExprs - The number of sub-expressions. 43654b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Always at least two, because the first sub-expression is the 43664b9c2d235fb9449e249d74f48ecfec601650de93John McCall // syntactic form. 43674b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43684b9c2d235fb9449e249d74f48ecfec601650de93John McCall // PseudoObjectExprBits.ResultIndex - The index of the 43694b9c2d235fb9449e249d74f48ecfec601650de93John McCall // sub-expression holding the result. 0 means the result is void, 43704b9c2d235fb9449e249d74f48ecfec601650de93John McCall // which is unambiguous because it's the index of the syntactic 43714b9c2d235fb9449e249d74f48ecfec601650de93John McCall // form. Note that this is therefore 1 higher than the value passed 43724b9c2d235fb9449e249d74f48ecfec601650de93John McCall // in to Create, which is an index within the semantic forms. 43734b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Note also that ASTStmtWriter assumes this encoding. 43744b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43754b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr **getSubExprsBuffer() { return reinterpret_cast<Expr**>(this + 1); } 43764b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr * const *getSubExprsBuffer() const { 43774b9c2d235fb9449e249d74f48ecfec601650de93John McCall return reinterpret_cast<const Expr * const *>(this + 1); 43784b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43794b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43804b9c2d235fb9449e249d74f48ecfec601650de93John McCall friend class ASTStmtReader; 43814b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43824b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(QualType type, ExprValueKind VK, 43834b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *syntactic, ArrayRef<Expr*> semantic, 43844b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 43854b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43864b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoObjectExpr(EmptyShell shell, unsigned numSemanticExprs); 43874b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43884b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSubExprs() const { 43894b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.NumSubExprs; 43904b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 43914b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43924b9c2d235fb9449e249d74f48ecfec601650de93John McCallpublic: 43934b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// NoResult - A value for the result index indicating that there is 43944b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// no semantic result. 43954b9c2d235fb9449e249d74f48ecfec601650de93John McCall enum { NoResult = ~0U }; 43964b9c2d235fb9449e249d74f48ecfec601650de93John McCall 43974b9c2d235fb9449e249d74f48ecfec601650de93John McCall static PseudoObjectExpr *Create(ASTContext &Context, Expr *syntactic, 43984b9c2d235fb9449e249d74f48ecfec601650de93John McCall ArrayRef<Expr*> semantic, 43994b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned resultIndex); 44004b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44014b9c2d235fb9449e249d74f48ecfec601650de93John McCall static PseudoObjectExpr *Create(ASTContext &Context, EmptyShell shell, 44024b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned numSemanticExprs); 44034b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44044b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the syntactic form of this expression, i.e. the 44054b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expression it actually looks like. Likely to be expressed in 44064b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// terms of OpaqueValueExprs bound in the semantic form. 44074b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSyntacticForm() { return getSubExprsBuffer()[0]; } 44084b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSyntacticForm() const { return getSubExprsBuffer()[0]; } 44094b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44104b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the index of the result-bearing expression into the semantics 44114b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// expressions, or PseudoObjectExpr::NoResult if there is none. 44124b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getResultExprIndex() const { 44134b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) return NoResult; 44144b9c2d235fb9449e249d74f48ecfec601650de93John McCall return PseudoObjectExprBits.ResultIndex - 1; 44154b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44164b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44174b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Return the result-bearing expression, or null if there is none. 44184b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getResultExpr() { 44194b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (PseudoObjectExprBits.ResultIndex == 0) 44204b9c2d235fb9449e249d74f48ecfec601650de93John McCall return 0; 44214b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[PseudoObjectExprBits.ResultIndex]; 44224b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44234b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getResultExpr() const { 44244b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getResultExpr(); 44254b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44264b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44274b9c2d235fb9449e249d74f48ecfec601650de93John McCall unsigned getNumSemanticExprs() const { return getNumSubExprs() - 1; } 44284b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44294b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef Expr * const *semantics_iterator; 44304b9c2d235fb9449e249d74f48ecfec601650de93John McCall typedef const Expr * const *const_semantics_iterator; 44314b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_begin() { 44324b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 44334b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44344b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_begin() const { 44354b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + 1; 44364b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44374b9c2d235fb9449e249d74f48ecfec601650de93John McCall semantics_iterator semantics_end() { 44384b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 44394b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44404b9c2d235fb9449e249d74f48ecfec601650de93John McCall const_semantics_iterator semantics_end() const { 44414b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer() + getNumSubExprs(); 44424b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44434b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *getSemanticExpr(unsigned index) { 44444b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(index + 1 < getNumSubExprs()); 44454b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSubExprsBuffer()[index + 1]; 44464b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44474b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *getSemanticExpr(unsigned index) const { 44484b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<PseudoObjectExpr*>(this)->getSemanticExpr(index); 44494b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44504b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44514f311183be3d923da9fbe8702c453688b4c426a9Daniel Dunbar SourceLocation getExprLoc() const LLVM_READONLY { 44524b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSyntacticForm()->getExprLoc(); 44534b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 4454aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 44554b9c2d235fb9449e249d74f48ecfec601650de93John McCall return getSyntacticForm()->getSourceRange(); 44564b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44574b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44584b9c2d235fb9449e249d74f48ecfec601650de93John McCall child_range children() { 44594b9c2d235fb9449e249d74f48ecfec601650de93John McCall Stmt **cs = reinterpret_cast<Stmt**>(getSubExprsBuffer()); 44604b9c2d235fb9449e249d74f48ecfec601650de93John McCall return child_range(cs, cs + getNumSubExprs()); 44614b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44624b9c2d235fb9449e249d74f48ecfec601650de93John McCall 44634b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool classof(const Stmt *T) { 44644b9c2d235fb9449e249d74f48ecfec601650de93John McCall return T->getStmtClass() == PseudoObjectExprClass; 44654b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 44664b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool classof(const PseudoObjectExpr *) { return true; } 44674b9c2d235fb9449e249d74f48ecfec601650de93John McCall}; 44684b9c2d235fb9449e249d74f48ecfec601650de93John McCall 4469276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// AtomicExpr - Variadic atomic builtins: __atomic_exchange, __atomic_fetch_*, 4470276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman/// __atomic_load, __atomic_store, and __atomic_compare_exchange_*, for the 4471ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith/// similarly-named C++11 instructions, and __c11 variants for <stdatomic.h>. 4472ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith/// All of these instructions take one primary pointer and at least one memory 4473ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith/// order. 4474276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanclass AtomicExpr : public Expr { 4475276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 4476ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith enum AtomicOp { 4477ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith#define BUILTIN(ID, TYPE, ATTRS) 4478ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith#define ATOMIC_BUILTIN(ID, TYPE, ATTRS) AO ## ID, 4479ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith#include "clang/Basic/Builtins.def" 4480ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith // Avoid trailing comma 4481ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith BI_First = 0 4482ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith }; 4483ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith 4484276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanprivate: 4485ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith enum { PTR, ORDER, VAL1, ORDER_FAIL, VAL2, WEAK, END_EXPR }; 4486276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Stmt* SubExprs[END_EXPR]; 4487276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned NumSubExprs; 4488276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation BuiltinLoc, RParenLoc; 4489276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp Op; 4490276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4491e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith friend class ASTStmtReader; 4492e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith 4493276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedmanpublic: 4494dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman AtomicExpr(SourceLocation BLoc, Expr **args, unsigned nexpr, QualType t, 4495dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman AtomicOp op, SourceLocation RP); 4496276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4497e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith /// \brief Determine the number of arguments the specified atomic builtin 4498e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith /// should have. 4499e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith static unsigned getNumSubExprs(AtomicOp Op); 4500e1b2abc2ed3f2c98985b06b4ad01c977bd584020Richard Smith 4501276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman /// \brief Build an empty AtomicExpr. 4502276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman explicit AtomicExpr(EmptyShell Empty) : Expr(AtomicExprClass, Empty) { } 4503276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4504276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getPtr() const { 4505276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[PTR]); 4506276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4507276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrder() const { 4508276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER]); 4509276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4510276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal1() const { 4511ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith if (Op == AO__c11_atomic_init) 45127a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall return cast<Expr>(SubExprs[ORDER]); 4513ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > VAL1); 4514276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL1]); 4515276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4516276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getOrderFail() const { 4517ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > ORDER_FAIL); 4518276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[ORDER_FAIL]); 4519276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4520276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman Expr *getVal2() const { 4521ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith if (Op == AO__atomic_exchange) 4522ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith return cast<Expr>(SubExprs[ORDER_FAIL]); 4523ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > VAL2); 4524276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return cast<Expr>(SubExprs[VAL2]); 4525276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4526ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith Expr *getWeak() const { 4527ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith assert(NumSubExprs > WEAK); 4528ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith return cast<Expr>(SubExprs[WEAK]); 4529ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith } 4530276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4531276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman AtomicOp getOp() const { return Op; } 4532276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman unsigned getNumSubExprs() { return NumSubExprs; } 4533276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4534dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 4535dfa64ba45922e1c28e36341bdf34785fea74659bEli Friedman 4536276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isVolatile() const { 4537276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return getPtr()->getType()->getPointeeType().isVolatileQualified(); 4538276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4539276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4540276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman bool isCmpXChg() const { 4541ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith return getOp() == AO__c11_atomic_compare_exchange_strong || 4542ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith getOp() == AO__c11_atomic_compare_exchange_weak || 4543ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith getOp() == AO__atomic_compare_exchange || 4544ff34d401ff385ef7173ca612432b4ea717fff690Richard Smith getOp() == AO__atomic_compare_exchange_n; 4545276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4546276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4547276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 4548276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman SourceLocation getRParenLoc() const { return RParenLoc; } 4549276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4550aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceRange getSourceRange() const LLVM_READONLY { 4551276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return SourceRange(BuiltinLoc, RParenLoc); 4552276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4553276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman static bool classof(const Stmt *T) { 4554276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return T->getStmtClass() == AtomicExprClass; 4555276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4556276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman static bool classof(const AtomicExpr *) { return true; } 4557276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 4558276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman // Iterators 4559276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman child_range children() { 4560276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman return child_range(SubExprs, SubExprs+NumSubExprs); 4561276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman } 4562276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman}; 45635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 45645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 45655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 4566