Expr.h revision 864c041e118155c2b1ce0ba36942a3da5a4a055e
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- Expr.h - Classes for representing expressions ----------*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file defines the Expr interface and subclasses. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_AST_EXPR_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_AST_EXPR_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson#include "clang/AST/APValue.h" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Stmt.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Type.h" 20161755a09898c95d21bfff33707da9ca41cd53c5John McCall#include "clang/AST/DeclAccessPair.h" 215baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall#include "clang/AST/OperationKinds.h" 22709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek#include "clang/AST/ASTVector.h" 23409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#include "clang/AST/UsuallyTinyPtrVector.h" 24f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne#include "clang/Basic/TypeTraits.h" 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/APSInt.h" 26525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner#include "llvm/ADT/APFloat.h" 273b8d116703db8018f855cbb4733ace426422623bNate Begeman#include "llvm/ADT/SmallVector.h" 28b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar#include "llvm/ADT/StringRef.h" 29403ba3522d1b1c97ae5fad81c1a2c4b3a754e1c1Nick Lewycky#include <cctype> 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 32590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 33c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 34c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 35c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 36c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 378e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 38c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 3956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 40409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson class CXXBaseSpecifier; 4188a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 4288a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 43f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall class ObjCPropertyRefExpr; 44833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall class TemplateArgumentLoc; 45d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall class TemplateArgumentListInfo; 4656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall class OpaqueValueExpr; 4788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 487ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 49f871d0cc377a1367b519a6cce26be74607566ebaJohn McCalltypedef llvm::SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; 507ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 57898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 588e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCallprotected: 59f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, 60bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor bool TD, bool VD, bool ContainsUnexpandedParameterPack) : Stmt(SC) { 618e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.TypeDependent = TD; 628e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.ValueDependent = VD; 63f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ValueKind = VK; 64f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ObjectKind = OK; 65bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = ContainsUnexpandedParameterPack; 66898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 67898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 68898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 690b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 700b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 710b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 73f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 759d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 769d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 779d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 789d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 799d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 809d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 819d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 82905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 838320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 84f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 869d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 8777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 88898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 89898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 90898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 92898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 93898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 94898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 958e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isValueDependent() const { return ExprBits.ValueDependent; } 96898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 970b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 988e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setValueDependent(bool VD) { ExprBits.ValueDependent = VD; } 990b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 104898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 105898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 107898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 1118e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isTypeDependent() const { return ExprBits.TypeDependent; } 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1130b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1148e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setTypeDependent(bool TD) { ExprBits.TypeDependent = TD; } 1150b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 116d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Whether this expression contains an unexpanded parameter 117d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// pack (for C++0x variadic templates). 118d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 119d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// Given the following function template: 120d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 121d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \code 122d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// template<typename F, typename ...Types> 123d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// void forward(const F &f, Types &&...args) { 124d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// f(static_cast<Types&&>(args)...); 125d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// } 126d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \endcode 127d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 128d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// The expressions \c args and \c static_cast<Types&&>(args) both 129d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// contain parameter packs. 130d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool containsUnexpandedParameterPack() const { 131d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor return ExprBits.ContainsUnexpandedParameterPack; 132d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 133d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 134bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// \brief Set the bit that describes whether this expression 135bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// contains an unexpanded parameter pack. 136bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void setContainsUnexpandedParameterPack(bool PP = true) { 137bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = PP; 138bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor } 139bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 14263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const; 1431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 144026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 145026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 146026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 147026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 148026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 149df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1517eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// isLValue - True if this expression is an "l-value" according to 1527eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the rules of the current language. C and C++ give somewhat 1537eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// different rules for this concept, but in general, the result of 1547eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// an l-value expression identifies a specific object whereas the 1557eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// result of an r-value expression is a value detached from any 1567eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// specific storage. 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1587eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// C++0x divides the concept of "r-value" into pure r-values 1597eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// ("pr-values") and so-called expiring values ("x-values"), which 1607eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// identify specific objects that can be safely cannibalized for 1617eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// their resources. This is an unfortunate abuse of terminology on 1627eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the part of the C++ committee. In Clang, when we say "r-value", 1637eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// we generally mean a pr-value. 1647eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isLValue() const { return getValueKind() == VK_LValue; } 1657eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isRValue() const { return getValueKind() == VK_RValue; } 1667eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isXValue() const { return getValueKind() == VK_XValue; } 1677eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isGLValue() const { return getValueKind() != VK_RValue; } 1687eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall 1697eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall enum LValueClassification { 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 173fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 17486f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 175077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian LV_InvalidMessageExpression, 1762514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 177e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 178e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 1807eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// Reasons why an expression might not be an l-value. 1817eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall LValueClassification ClassifyLValue(ASTContext &Ctx) const; 18253202857c60214d80950a975e6e52aebf30bd16aEli Friedman 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 18844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 18944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 19044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 19144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 196fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 198ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 2014f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 2025daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 203ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 20486f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 2052514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 206e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 207077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian MLV_InvalidMessageExpression, 208e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor MLV_ClassTemporary 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 21044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 21144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 2121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2132111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 2142111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 2152111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 2162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 2182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 2192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 2202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 2212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 2222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 2231c860d5640e8eebb11a5d515a761242b66761b0bPeter Collingbourne CL_AddressableVoid, // Void expression whose address can be taken in C. 2242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 2252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 2262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 2272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_ClassTemporary, // A prvalue of class type 228077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian CL_ObjCMessageRValue, // ObjC message is an rvalue 2292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 2302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 2322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 2332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 2342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 2352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 2362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 2372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 2382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NotBlockQualified, // Not captured in the closure 2392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 2402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 2412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 2422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 2432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2442111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2452111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 2462111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 2472111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2482111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 2492111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 2502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 2522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 2532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 2542111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2552111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2562111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 2572111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2582111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 2592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 2602111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 2612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 2622111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2632111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 2642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 2652111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 2662111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 2672111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 2682111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 2692c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor 2702c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor /// \brief Create a simple, modifiably lvalue 2712c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor static Classification makeSimpleLValue() { 2722c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor return Classification(CL_LValue, CM_Modifiable); 2732c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor } 2742c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor 2752111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 276369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Classify - Classify this expression according to the C++0x 2772111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 2782111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x defines ([basic.lval]) a new taxonomy of expressions to replace the 2802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 2812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 2822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 2832111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 2842111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 2852111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 2862111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 2872111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 2882111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 2892111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 2902111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2912111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 292369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief ClassifyModifiable - Classify this expression according to the 2932111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x expression taxonomy, and see if it is valid on the left side 2942111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 2952111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2962111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 2972111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 2982111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 2992111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 3002111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 3012111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 3022111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 304f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKindForType - Given a formal return or parameter type, 305f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// give its value kind. 306f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static ExprValueKind getValueKindForType(QualType T) { 307f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall if (const ReferenceType *RT = T->getAs<ReferenceType>()) 3080943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall return (isa<LValueReferenceType>(RT) 3090943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue 3100943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : (RT->getPointeeType()->isFunctionType() 3110943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue : VK_XValue)); 312f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return VK_RValue; 313f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 314f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 315f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKind - The value kind that this expression produces. 316f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind getValueKind() const { 317f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprValueKind>(ExprBits.ValueKind); 318f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 319f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 320f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getObjectKind - The object kind that this expression produces. 321f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// Object kinds are meaningful only for expressions that yield an 322f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// l-value or x-value. 323f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprObjectKind getObjectKind() const { 324f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprObjectKind>(ExprBits.ObjectKind); 325f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 326f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 32756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool isOrdinaryOrBitFieldObject() const { 32856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprObjectKind OK = getObjectKind(); 32956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return (OK == OK_Ordinary || OK == OK_BitField); 33056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 33156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 332f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setValueKind - Set the value kind produced by this expression. 333f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setValueKind(ExprValueKind Cat) { ExprBits.ValueKind = Cat; } 334f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 335f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setObjectKind - Set the object kind produced by this expression. 336f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setObjectKind(ExprObjectKind Cat) { ExprBits.ObjectKind = Cat; } 337f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 3382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 3392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 3402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 3422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 34333bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 34433bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 34533bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 3465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 34738d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 34838d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 34938d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 3501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 351f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// \brief If this expression is an l-value for an Objective C 352f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// property, find the underlying property reference expression. 353f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const ObjCPropertyRefExpr *getObjCProperty() const; 354f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 355093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 356093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 357c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3582b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 3592b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 3602b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 3612b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 3622b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 363c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 3655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 3665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 368590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 369590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 3705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 371590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 3728070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 373590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 3745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 375c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 376c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 3774204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 3781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 38094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 3812d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 38294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 3831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 38594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 38694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 3871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 38994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 39094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 39194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 39294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 39394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 39494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 39594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 39694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 39794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 39894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 3991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 401e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 402e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // isGlobalLValue - Return true if the evaluated lvalue expression 403e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // is global. 404e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool isGlobalLValue() const; 405e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 406e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 407e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 408e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 409e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 41094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 41194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 4126ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 413019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 414019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 415019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 4164ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool Evaluate(EvalResult &Result, const ASTContext &Ctx) const; 4175b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 418cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 419cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 420cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// any crazy technique that we want to. 4214ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsBooleanCondition(bool &Result, const ASTContext &Ctx) const; 422cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 4236ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 42445b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 4254ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isEvaluatable(const ASTContext &Ctx) const; 426c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 4276ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 428138d6a6890c171068ac60430431eaadb3fcef9abGabor Greif /// which must be evaluated each time and must not be optimized away 4296ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 4306ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 4314ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool HasSideEffects(const ASTContext &Ctx) const; 432c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 43351fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 43451fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 4354ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad llvm::APSInt EvaluateAsInt(const ASTContext &Ctx) const; 43651fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 437b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 438b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 4394ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsLValue(EvalResult &Result, const ASTContext &Ctx) const; 4401b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 441e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue. 4424ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsAnyLValue(EvalResult &Result, const ASTContext &Ctx) const; 443e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 44482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Enumeration used to describe the kind of Null pointer constant 44582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// returned from \c isNullPointerConstant(). 44682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth enum NullPointerConstantKind { 44782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is not a Null pointer constant. 44882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_NotNull = 0, 44982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 45082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a Null pointer constant built from a zero integer. 45182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_ZeroInteger, 45282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 45382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a C++0X nullptr. 45482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_CXX0X_nullptr, 45582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 45682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a GNU-style __null constant. 45782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_GNUNull 45882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth }; 45982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 460ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 461ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 462ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 463ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 464ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 465c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 466ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 467ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 468ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 469c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 470ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 471ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 472ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 473ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 474c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 47582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to 47682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// a Null pointer constant. The return value can further distinguish the 47782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// kind of NULL pointer constant that was detected. 47882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantKind isNullPointerConstant( 47982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth ASTContext &Ctx, 48082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantValueDependence NPC) const; 481efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 48244baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 4831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 484102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 4851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 48611ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 48711ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 48811ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 489864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// \brief Given an expression of bound-member type, find the type 490864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// of the member. Returns null if this is an *overloaded* bound 491864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall /// member expression. 492864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall static QualType findBoundMemberType(const Expr *expr); 493864c041e118155c2b1ce0ba36942a3da5a4a055eJohn McCall 494369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Result type of CanThrow(). 495369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl enum CanThrowResult { 496369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Cannot, 497369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Dependent, 498369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Can 499369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl }; 500369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Test if this expression, if evaluated, might throw, according to 501369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// the rules of C++ [expr.unary.noexcept]. 502369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CanThrowResult CanThrow(ASTContext &C) const; 503369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl 5044e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 5051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 5064e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 5074e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 5082b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 50956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 51056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 51127c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 51256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 5131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5142fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 5152fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 5162fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 5172fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 5184d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const Expr *IgnoreParenImpCasts() const { 5194d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 5204d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 521f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 522f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 523f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 524f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall Expr *IgnoreParenLValueCasts(); 525f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 526f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const Expr *IgnoreParenLValueCasts() const { 527f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 528f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 5294d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 530ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 531ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 532ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 533ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 5341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5356eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 5366eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 5376eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 538c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 5396eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 5406eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 5416eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 5426eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 543c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 544558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 545558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 546558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 5472f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 54875e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Whether this expression is an implicit reference to 'this' in C++. 54975e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitCXXThis() const; 55075e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor 5512b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 5524e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 5534e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 55456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 55556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 55656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 557ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 558ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 559ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 5601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 561898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 562898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 563898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 5641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 5661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 5675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 5695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 5735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 57656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 57756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// fixed type and value class. These don't correspond to concrete 57856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// syntax; instead they're used to express operations (usually copy 57956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operations) on values whose source is generally obvious from 58056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// context. 58156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass OpaqueValueExpr : public Expr { 58256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 58356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *SourceExpr; 58456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation Loc; 58556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 58656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 58756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK, 58856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprObjectKind OK = OK_Ordinary) 58956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 59056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->isDependentType(), T->isDependentType(), false), 59156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceExpr(0), Loc(Loc) { 59256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 59356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 59456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Given an expression which invokes a copy constructor --- i.e. a 59556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// CXXConstructExpr, possibly wrapped in an ExprWithCleanups --- 59656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// find the OpaqueValueExpr that's the source of the construction. 59756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static const OpaqueValueExpr *findInCopyConstruct(const Expr *expr); 59856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 59956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit OpaqueValueExpr(EmptyShell Empty) 60056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, Empty) { } 60156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 60256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Retrieve the location of this expression. 60356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getLocation() const { return Loc; } 60456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 60556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 60656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getSourceRange(); 60756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 60856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 60956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getExprLoc() const { 61056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getExprLoc(); 61156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 61256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 61356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 61456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { return child_range(); } 61556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 61656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression of an opaque value expression is the 61756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which originally generated the value. This is 61856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// provided as a convenience for analyses that don't wish to 61956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// precisely model the execution behavior of the program. 62056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 62156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression is typically set when building the 62256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which binds the opaque value expression in the first 62356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// place. 62456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getSourceExpr() const { return SourceExpr; } 62556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall void setSourceExpr(Expr *e) { SourceExpr = e; } 62656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 62756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 62856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == OpaqueValueExprClass; 62956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 63056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const OpaqueValueExpr *) { return true; } 63156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 63256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 633a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 634a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 635a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 63640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// \brief The nested-name-specifier that qualifies the name, including 63740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// source-location information. 63840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc; 639a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 640a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 641a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 642a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 643a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 644a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 645a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 646c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 647a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 648a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 649c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 650a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 651a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 652a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 653a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 654c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 655a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 656833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 657833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 658a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 659c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 660a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 661833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 662833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 663a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 664d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 665d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 666bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void initializeFrom(const TemplateArgumentListInfo &List, 667bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor bool &Dependent, bool &ContainsUnexpandedParameterPack); 668d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 6698dfbd8b252ba4e6cf4b7a3422f6ef0ca21312dfeArgyrios Kyrtzidis static std::size_t sizeFor(unsigned NumTemplateArgs); 670d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 671a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 672c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 676a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 677c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 678a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 679a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 680c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 681a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 682a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 683a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 684c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 685c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 686a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 687c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 688a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 689dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 6902577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 691a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 6939e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 6942577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// DNLoc - Provides source/type location info for the 6952577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in DecoratedD. 6962577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 6972577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 698a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 699a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 7002cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 701a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 702c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 703a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 704a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 705c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 706a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 707a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 708a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 709a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 710096832c5ed5b9106fa177ebc148489760c3bc496John McCall 71140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor DeclRefExpr(NestedNameSpecifierLoc QualifierLoc, 712dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 713d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 714f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 715663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 71640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor DeclRefExpr(NestedNameSpecifierLoc QualifierLoc, 7172577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 7182577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 719f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 7202577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 721663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 722663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 723663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 724c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 7250da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 7260da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 7270da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 7289e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 730f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, ExprValueKind VK, SourceLocation l) : 731bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor Expr(DeclRefExprClass, t, VK, OK_Ordinary, false, false, false), 732f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DecoratedD(d, 0), Loc(l) { 7330da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 7340da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 7351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 736a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 73740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 738dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 739a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 740f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 7410da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 742663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 7432577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 74440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 7452577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 7462577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 747f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 7482577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 7492577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 750663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 751663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 752def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor bool HasQualifier, 753def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor bool HasExplicitTemplateArgs, 754def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor unsigned NumTemplateArgs); 755c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 756dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 757dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 758dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 759904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 7602577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 7612577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 7622577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 7632577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 7649e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 7650b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 76663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 7671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 768a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 769a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 770a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 771c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 772c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 773a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 774a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 775a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 776a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 777c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 77840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getNameQualifier()->QualifierLoc.getNestedNameSpecifier(); 779a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 78040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 78140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// \brief If the name was qualified, retrieves the nested-name-specifier 78240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// that precedes the name, with source-location information. 78340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 78440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 78540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 78640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 78740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getNameQualifier()->QualifierLoc; 78840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 78940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 790096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 791096832c5ed5b9106fa177ebc148489760c3bc496John McCall return (DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag); 792096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 793096832c5ed5b9106fa177ebc148489760c3bc496John McCall 794096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 795096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 796096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 797096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(hasExplicitTemplateArgs()); 798096832c5ed5b9106fa177ebc148489760c3bc496John McCall 799096832c5ed5b9106fa177ebc148489760c3bc496John McCall if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 800096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 801096832c5ed5b9106fa177ebc148489760c3bc496John McCall 802096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 803096832c5ed5b9106fa177ebc148489760c3bc496John McCall getNameQualifier() + 1); 804096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 805096832c5ed5b9106fa177ebc148489760c3bc496John McCall 806096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 807096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 808096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 809096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 810a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 811d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 812096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 813096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 814096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 815096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getExplicitTemplateArgsOpt() const { 816096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 817096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 818096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 819096832c5ed5b9106fa177ebc148489760c3bc496John McCall 820d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 821d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 822d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 823096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 824096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 825d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 826c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 827a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 828a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 829a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 830096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 831a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 832c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 833096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 834a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 835c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 836a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 837a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 838833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 839096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 840a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 841c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 842096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 843a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 844c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 845a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 846a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 847a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 848096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 849a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 850c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 851096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 852a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 853c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 854a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 855a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 856a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 857096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 858a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 859c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 860096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 861a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 862c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 8631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 86499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 8671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 86877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 86963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 870663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 87160adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 8723397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 8735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 875d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 876d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 877227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 878227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 879227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 880227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 881848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 882848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 883848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 884848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 885227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 8861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 887227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 888227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 889227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 890227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 8911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 892f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 893bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor type->isDependentType(), type->isDependentType(), 894bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 895f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 8961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 89717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 8981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 89917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 90017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 901227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 90217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 90317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 90417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 90517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 90617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 907848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 9083a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 90963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 910227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 9111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 913227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 914d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 9151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 91677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 91763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 918227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 919227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 9209996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 9219996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 9229996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 9239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 9249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 9259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 9269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 9279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 9289996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 9299996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned BitWidth; 9309996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 9319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 9329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 9339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 9349996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9359996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 9369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9379996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 9389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 9399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 9419996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage() : BitWidth(0), VAL(0) { } 9429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9439996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 9449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 9459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 9469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 9479996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 9489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 9499996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 9509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 9519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 9529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APIntStorage : public APNumericStorage { 9549996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 9559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return getIntValue(); } 9569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 9579996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 9589996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9599996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APFloatStorage : public APNumericStorage { 9609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 9619996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return llvm::APFloat(getIntValue()); } 9629996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 9639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 9649996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 9659996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 9669996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 9689996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APIntStorage Num; 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 9709996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9719996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 9729996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 9739996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 9749996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 9789996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral(ASTContext &C, const llvm::APInt &V, 9799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l) 980bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(IntegerLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 981bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 982f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l) { 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 9849996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 9855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 986a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 9879996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 9889996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // or UnsignedLongLongTy 9899996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 9909996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 9919996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 9920b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9939996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return Num.getValue(); } 99463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 996313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 997313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 998313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 9999996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { Num.setValue(C, Val); } 10000b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 10010b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 10021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 10061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 100777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 100863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 10125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 1014c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 1017c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 1018bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1019bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 1020f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Value(value), Loc(l), IsWide(iswide) { 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10220b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 10230b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 10240b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 10250b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1026018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 1027c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 10281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 102963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 10301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10330b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 10340b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 10350b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 10360b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 10371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 104177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 104277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 104363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 10479996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APFloatStorage Num; 1048720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 10495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 10509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 1052720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 1053bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(FloatingLiteralClass, Type, VK_RValue, OK_Ordinary, false, false, 1054bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 10559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IsExact(isexact), Loc(L) { 10569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 10579996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 10585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 105917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 10601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 10619996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(FloatingLiteralClass, Empty), IsExact(false) { } 106217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 10639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 10649996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 10659996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 10669996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 10679996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10689996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return Num.getValue(); } 10699996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 10709996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis Num.setValue(C, Val); 10719996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 107217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1073720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 107417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 1075c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 1076da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 1077da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 1078da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 1079da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 10801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 108117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 108217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 108317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 108463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 10901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 109177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 109263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10955d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 10965d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 10975d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 10985d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 10995d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 11005d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 11015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 11025d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 11035d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 1104bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false, 1105bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 1106f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 11071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1108cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 11091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 1110cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 1111cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 11125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 11135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1114cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1115cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 111663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return Val->getSourceRange(); } 11171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 11195d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 11205d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 11211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11225d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 112363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 11245d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 11255d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1126e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1127e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 1128e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1129a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1130c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1131c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1132690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1133690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 11348bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1135690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1136c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1137c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1138c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1139c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1140c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1141c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 11433e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson friend class ASTStmtReader; 11443e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 11483e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool IsPascal; 1149726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 1150726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 11512085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1152f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1153bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false, false) {} 11541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11562085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 11572085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 11582085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 11593e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson unsigned ByteLength, bool Wide, bool Pascal, 11603e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson QualType Ty, 1161a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 11622085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 11632085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 11641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 11653e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson unsigned ByteLength, bool Wide, 11663e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool Pascal, QualType Ty, SourceLocation Loc) { 11673e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson return Create(C, StrData, ByteLength, Wide, Pascal, Ty, &Loc, 1); 11682085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1169a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1170673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1171673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1172673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1173b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 1174b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 1175b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 11762f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 1178673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1179673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 1180b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 1181673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 11833e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool isPascal() const { return IsPascal; } 11843e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson 11858d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1186b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 1187b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1188b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 118933fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 119033fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 119133fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1192726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1193726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1194726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 11951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1196726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1197726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1198726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1199726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 12001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1201673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1202673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1203673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 120408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner 120508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 120608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 120708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 120808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 120908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 121008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 121108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 121208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 121308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 121408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1215673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1216b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1217b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1218b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 122063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 12211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 12255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 12271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 122877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 122963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 12365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1239898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1240f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 1241bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->isTypeDependent(), val->isValueDependent(), 1242bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->containsUnexpandedParameterPack()), 1243898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 12441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1245c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 12461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1247c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1248c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 12495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 12505549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1251c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1252c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 125363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(L, R); } 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1255313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1256313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1257c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1258313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1259313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1260313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1261c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1262313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 12631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 12655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 12671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 126877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 126963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12730518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 12740518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1276dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1277dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1278dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1279dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1280dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1281dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1282dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 12845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12855baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 12865baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 12875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 12880799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 12895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12900799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 12911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 12925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1293f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1294f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1295f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1296de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 1297bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->isValueDependent(), 1298bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->containsUnexpandedParameterPack()), 12990799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13010b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 13021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 13032de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 13040b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13050799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 13060b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 13070b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 13090b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 13100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 13130b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 13140b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 13162085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 13172de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 13182085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1320cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 13212085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 13222de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 13232085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 13245a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 13250799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 13260799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 13272de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 1328993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc == UO_PreInc || Opc == UO_PostInc; 13292de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 13302de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 1331993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc <= UO_PreDec; 13322de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 13332de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 13342de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 13352de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 13360799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 13371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 13395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 13405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 13415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1342bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1343bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1344bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1345bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1346bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1347bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1348bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1349bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 135063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 13515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 13525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 13535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 13545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 13555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 135663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return Loc; } 13571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 13591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 13621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 136377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 136463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 13655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 13688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 13698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 13708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 13718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1372c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// double d; 13738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 13748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 13758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 13768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 13778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 13788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1379c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 13808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 13828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 13838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 13848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 13858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 13868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 13878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1388cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 13898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1390cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 13918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1392cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1393cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1394cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1395cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1396cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 13978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 13988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 14008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1401c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 14038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1404c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 14068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1407c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - An unsigned index into the array of Expr*'s stored after this node 14088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 14098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 14108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 14118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1412c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - A CXXBaseSpecifier*, for references that look at a field in a 1413cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 14148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1415c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 14178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1418c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 14198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 14208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1421c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1423c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 14248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1425c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 14268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1427c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 14298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 14308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1431c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 14328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1433cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1434cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1435cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1436cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1437c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1439c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt Kind getKind() const { 14408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 14418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1442c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 14448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 14458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 14468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 14478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 14488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 14518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 14528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1453cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 14548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1455c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 14578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 14588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1459c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1460cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1461cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1462cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1463c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1464cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1465c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 14678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 14688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 14698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1470c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// contains the location of the period (if there is one) and the 14718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 147206dec892b5300b43263d25c5476b506c9d6cfbadAbramo Bagnara SourceRange getSourceRange() const { return Range; } 14738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 14748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1476c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 14788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 14798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 14808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 14818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 14828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 14838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1484c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1485c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfExpr(ASTContext &C, QualType type, 14868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1487c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 14888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 14898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 14908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 14928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1493c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 14948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1496c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1497c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *Create(ASTContext &C, QualType type, 1498c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1499c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 15008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 15018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 15028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1503c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *CreateEmpty(ASTContext &C, 15048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 15058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 15078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 15088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 15098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 15118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 15128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1513c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 15158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 15168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 15188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 15198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1520c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor const OffsetOfNode &getComponent(unsigned Idx) { 15228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 15238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<OffsetOfNode *> (this + 1)[Idx]; 15248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 15278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 15288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 15298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1530c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 15328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 15338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 15368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 15378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 15388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 15398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 15428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 15438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 15448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 15458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1546c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 15488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 15498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 155163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 15528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 15538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 15568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 15578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 15608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 156263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 156363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = 156463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall reinterpret_cast<Stmt**>(reinterpret_cast<OffsetOfNode*>(this + 1) 156563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall + NumComps); 156663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumExprs); 156763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 15688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 15698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1570f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated) 1571f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// expression operand. Used for sizeof/alignof (C99 6.5.3.4) and 1572f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// vec_step (OpenCL 1.1 6.11.12). 1573f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourneclass UnaryExprOrTypeTraitExpr : public Expr { 1574f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne unsigned Kind : 2; 15750518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1576d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1577a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1578d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1579d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 158142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 15825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1583f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, TypeSourceInfo *TInfo, 1584f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1585f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1586f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1587ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 15882850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1589bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->isDependentType(), 1590bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->containsUnexpandedParameterPack()), 1591f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Kind(ExprKind), isType(true), OpLoc(op), RParenLoc(rp) { 1592a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1593ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1594ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 1595f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, Expr *E, 1596f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1597f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1598f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1599ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1600ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1601bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->isTypeDependent(), 1602bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->containsUnexpandedParameterPack()), 1603f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Kind(ExprKind), isType(false), OpLoc(op), RParenLoc(rp) { 1604ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1605d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 16060518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 16070b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 1608f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne explicit UnaryExprOrTypeTraitExpr(EmptyShell Empty) 1609f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne : Expr(UnaryExprOrTypeTraitExprClass, Empty) { } 16100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1611f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTrait getKind() const { 1612f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return static_cast<UnaryExprOrTypeTrait>(Kind); 1613f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne } 1614f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne void setKind(UnaryExprOrTypeTrait K) { Kind = K; } 16150b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16160518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 16170518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 16185ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 16195ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1620a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 16210518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 16225ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 16230518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1624caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 16250518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1626d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 16270518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1628caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1629f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return const_cast<UnaryExprOrTypeTraitExpr*>(this)->getArgumentExpr(); 1630caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 16310b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16320b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1633a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1634a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 16351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 16360b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 16370b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16380518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 16390518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 16400518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 16410518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 16420518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 16430518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 164476e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 16450b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 16460b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16470b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 16480b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1649866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 165063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 1651866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1652866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 16535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 1655f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return T->getStmtClass() == UnaryExprOrTypeTraitExprClass; 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1657f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne static bool classof(const UnaryExprOrTypeTraitExpr *) { return true; } 16581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 165977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 166063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children(); 16615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 16645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 16655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 16665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 16685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 166977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 16701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 16715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 16725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16732324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 1674f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 167573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 1676f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 16772850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 1678bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 1679bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 1680bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 16812850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 168273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 168373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 168473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 16851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1686cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1687cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1688cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1689cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16902324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 16912324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 16922324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 16932324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 16942324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 169533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 169633fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 169733fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 169833fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 16995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 17005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1701cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1702cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 17035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 17045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1705cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 17061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 17085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 170977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 17101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 17125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 17132324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 17141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 17165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 17172324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 17181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 171977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 17205549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 17211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 17221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 172363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 172477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 17255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1727026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1728cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1729cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 173063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 17315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 17345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 17361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 173777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 173863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 173963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 174063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 17415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1744b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 17451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1746b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 17471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1748b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1749b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 17505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 1751cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne enum { FN=0, PREARGS_START=1 }; 17525549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 17535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 17545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 17551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1756b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1757cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne // These versions of the constructor are for derived classes. 1758cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext& C, StmtClass SC, Expr *fn, unsigned NumPreArgs, 1759cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **args, unsigned numargs, QualType t, ExprValueKind VK, 1760cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SourceLocation rparenloc); 1761cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext &C, StmtClass SC, unsigned NumPreArgs, EmptyShell Empty); 1762cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 1763cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Stmt *getPreArg(unsigned i) { 1764cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1765cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 1766cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1767cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const Stmt *getPreArg(unsigned i) const { 1768cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1769cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 1770cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1771cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne void setPreArg(unsigned i, Stmt *PreArg) { 1772cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1773cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[PREARGS_START+i] = PreArg; 1774cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1775cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 1776cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne unsigned getNumPreArgs() const { return CallExprBits.NumPreArgs; } 177742602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 17785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 1780f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 17811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17821f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1783ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 17841f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 17855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 17865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 178718b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1788a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1789d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 1790d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 1791d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 1792d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 1793d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 1794a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1795a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1796bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1797bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1798bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1799a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 18005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 18015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 18025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 18031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1804aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the call arguments. 1805cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **getArgs() { 1806cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return reinterpret_cast<Expr **>(SubExprs+getNumPreArgs()+PREARGS_START); 1807cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1808aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 18095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 18105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 18115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 1812cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 18135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 18155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 1816cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 18175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1819934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1820934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1821934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1822cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[Arg+getNumPreArgs()+PREARGS_START] = ArgExpr; 1823934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 18241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1825d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1826d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1827d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 18288189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 18291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 18315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 18321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1833cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_begin() { return SubExprs+PREARGS_START+getNumPreArgs(); } 1834cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_end() { 1835cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 1836cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1837cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_begin() const { 1838cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs(); 1839cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1840cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_end() const { 1841cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 1842cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 18431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 18455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 18465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 18475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1848cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1849cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 18504ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad unsigned isBuiltinCall(const ASTContext &Context) const; 18511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 18531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 18546dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 18556dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 18561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1857d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 18581f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1859866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 18602882eca5a184c78f793188083f6ce539740a5cf2John McCall SourceRange getSourceRange() const; 18611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 18634bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 18644bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 18655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 186788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 186877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 186963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 187063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], 187163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall &SubExprs[0]+NumArgs+getNumPreArgs()+PREARGS_START); 187263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 18735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 18745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1875ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 18765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 18775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 18786bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 18796bb8017bb9e828d118e15e59d71c66bba323c364John McCall struct MemberNameQualifier : public NameQualifier { 1880161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 18816bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 18826bb8017bb9e828d118e15e59d71c66bba323c364John McCall 1883ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1884ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 18855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 18861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1887ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1888ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1889f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 18901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1891ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 18925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 18931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18942577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 18952577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 18962577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 18972577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 1898ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 189983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 19001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 190183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 19026bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 19036bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 1904c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 19056bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 19061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1907c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1908c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1909c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1910c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 19116bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 1912c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 19131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 191483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 19156bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 19166bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 19176bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 191883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 191983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 192083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 19216bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 1922c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1923c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1926f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1927f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 1928f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1929f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1930bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 1931bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 19322577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 19332577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 19342577743c5650c646fb705df01403707e94f2df04Abramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) { 19352577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 19362577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 19372577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 19382577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 19392577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 19402577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 19412577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // for constructors, destructors and conversion oeprators). 19422577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1943f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 1944f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1945f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1946bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 1947bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 19482577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 19492577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 19506bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1951510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 19521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 195340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 1954161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 19552577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 1956d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1957f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 19581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 195988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 19605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 196157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 196257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 196357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 196457e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 196557e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1966f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1967f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 19681f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 19696bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1970161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 19716bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1972161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1973161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 19746bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 19756bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 19766bb8017bb9e828d118e15e59d71c66bba323c364John McCall 19771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 19780979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 19790979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 19806bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 19811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 198383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 198483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 19851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 19866bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 198783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 19881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 198940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc.getNestedNameSpecifier(); 199040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 199140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 199240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// \brief If the member name was qualified, retrieves the 199340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// nested-name-specifier that precedes the member name, with source-location 199440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// information. 199540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 199640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 199740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 199840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 199940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc; 200083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 2001c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 2002c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 2003c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 2004096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 20051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 2006c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2008d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 2009d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 2010d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 2011096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 2012096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 2013096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2014096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2015096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2016096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 2017096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 2018096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 2019096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(HasExplicitTemplateArgumentList); 2020096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!HasQualifierOrFoundDecl) 2021096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 2022096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2023096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 2024096832c5ed5b9106fa177ebc148489760c3bc496John McCall getMemberQualifier() + 1); 2025096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2026096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2027096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2028096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 2029096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 2030096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 2031096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 2032096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2033096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2034096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 2035096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 2036096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 2037096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getOptionalExplicitTemplateArgs() const { 2038096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 2039096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 2040d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 2041c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 20421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 2043c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 20441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 2045c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 2046c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 20471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2048096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 2049c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2051c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 2052c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 2053833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 2054c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 20551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 20561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2057096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 2058c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2060c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 2061c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 20621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 2063c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 20641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 20651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2066096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 2067c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 2070c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 20711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 2072c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 2073c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 20741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2075096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 2076c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20782577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 20792577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 20802577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 20812577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 20822577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 20832577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 20845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 20851f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 20861f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 2087ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 2088ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 2089026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 20901f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 20915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 209275e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor SourceRange getSourceRange() const; 209375e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor 209463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return MemberLoc; } 20955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 209675e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Determine whether the base of this explicit is implicit. 209775e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitAccess() const { 209875e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor return getBase() && getBase()->isImplicitCXXThis(); 209975e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor } 210075e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor 21011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 210283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 21035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 21051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21061237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 210763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 21084045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 21094045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 21104045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 21115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 21125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 2114aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 2115aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 21160fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 21170fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 21180fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 21190fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 21201d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 21211d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 21221d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 212342f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 21245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 2125e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 2126aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 212742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 2128f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 2129f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 2130bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor tinfo->getType()->isDependentType(), 2131bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->isValueDependent(), 2132bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->containsUnexpandedParameterPack()), 213342f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 21341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2135ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 2136ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 2137ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 2138ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 21395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 21405549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 2141ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 2142e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 2143e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 2144ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 2145ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 21460fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 2147ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2148ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 214942f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 215042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 215142f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 215263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 21530fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 21540fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 21550fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 21560fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 215773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 21580fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 215973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2160aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 21611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2163aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 2164aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 21651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21661237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 216763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Init, &Init+1); } 2168aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2169aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 217049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 217149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 217249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 217349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 21740835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2175cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 21765baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 21771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2178cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 21790835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2180409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2181daa8e4e888758d55a7a759dd4a91b83921cef222John McCall void CheckCastConsistency() const { 2182409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 2183409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 21845cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 2185cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 2186cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 2187409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 2188409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 2189f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(!path_empty() && "Cast kind should have a base path!"); 2190f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 2191409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2192409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 2193409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 2194409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 2195409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 2196409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 2197409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 2198409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 2199404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall case CK_NullToPointer: 2200409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 2201409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 2202409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 2203409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 2204409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 2205409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 2206409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 2207409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 2208409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 2209409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 2210409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 2211569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor case CK_ObjCObjectLValueCast: 22122bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingRealToComplex: 2213f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToReal: 22142bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingComplexCast: 2215f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToIntegralComplex: 22162bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralRealToComplex: 2217f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToReal: 22182bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralComplexCast: 2219f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToFloatingComplex: 2220daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(!getType()->isBooleanType() && "unheralded conversion to bool"); 2221daa8e4e888758d55a7a759dd4a91b83921cef222John McCall // fallthrough to check for null base path 2222daa8e4e888758d55a7a759dd4a91b83921cef222John McCall 2223daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_Dependent: 22240ae287a498b8cec2086fe6b7e753cbb3df63e74aJohn McCall case CK_LValueToRValue: 2225f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall case CK_GetObjCProperty: 2226daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_NoOp: 2227daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_PointerToBoolean: 2228daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralToBoolean: 2229daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingToBoolean: 2230daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_MemberPointerToBoolean: 2231daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingComplexToBoolean: 2232daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralComplexToBoolean: 22335082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_LValueBitCast: // -> bool& 22345082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_UserDefinedConversion: // operator bool() 2235f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(path_empty() && "Cast kind should not have a base path!"); 2236409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 2237409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2238409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 2239409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2240409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2241f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2242f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2243f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2244f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2245f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 22460835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2247f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2248f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2249f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2250898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2251898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2252898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2253898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2254898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 2255bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType() || (op && op->isValueDependent()), 2256bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (ty->containsUnexpandedParameterPack() || 2257bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor op->containsUnexpandedParameterPack())), 22588e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2259daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 22608e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 22618e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 2262daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 2263f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 22641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2265087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2266f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 22678e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 22688e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 22698e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 22701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22710835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 22728e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 22738e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2274f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2275f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 22760835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 22770835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2278087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2279087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 22806eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 22816eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 22826eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 22836eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 22846eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 22856eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 22866eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 228741b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2288f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2289f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 22908e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 22918e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2292f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2293f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2294f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2295f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2296f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2297f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 229841b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 22991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 23004bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 23014bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 23020835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 23030835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 23041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23050835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 230663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Op, &Op+1); } 23070835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 23080835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 230949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 231049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 231149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 231249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 231349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2314bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2315bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2316906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2317bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2318bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2319bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2320bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2321906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 23221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2323906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2324906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2325906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2326906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2327bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2328bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 23290835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2330906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2331f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 23325baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2333f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 23345baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 233590045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2336087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2337f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2338f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2339f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2340f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2341f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2342f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 23435baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2344f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 23455baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2346f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2347f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2348f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2349f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 23505baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2351f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2352f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2353087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 235463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 23550835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 23560835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 235790045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 23581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 23591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 236049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 236149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 236249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 236349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 236449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 23651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 236649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 236749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 236849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 236949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 237049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 237149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 23725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 237349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 237449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 237549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 237649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 237749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2378906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2379906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 23800835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 23819d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 23829d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 23839d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 238449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 238549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2386f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2387f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2388f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2389f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 239049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2391db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2392f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2393f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2394db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 239549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 23969d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 23979d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 23989d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 23999d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 24009d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 240149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 240249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 24039d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 240449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 24051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24064bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 24074bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 240849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 240949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 241049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 241149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 24126eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 241349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 241449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 24156eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2416b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2417b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2418f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2419f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2420f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 242141b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2422f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 242341b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 242449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2425db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2426f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2427f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2428f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2429f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2430f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2431f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2432f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2433f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2434f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2435f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2436f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2437db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2438b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2439db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2440db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2441b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2442db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2443db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 244463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2445b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 24465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 24495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24506eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 24515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 24543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 24553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 24563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 24573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 24583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 24593fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 24603fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 24613fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 24623fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 24633fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 24643fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 24653fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 24663fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 24673fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 24683fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 24693fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 24703fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 24715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 24725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 24735baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 24745baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 247517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 24760799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 24770799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 24780799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 247917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 24805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 24811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 24821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 248317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2484f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 248517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2486f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2487898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 2488bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2489bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2490bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 2491898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 24921237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 24931237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 24941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 24955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 24965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2498db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 24991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 25002de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2501db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 250217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2503db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2504db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 25050799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2506db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2507db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 25085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2509db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 25105549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2511db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2512db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 251363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 25145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 25155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 25185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 25195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 25205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25210799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2522a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2523063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2524063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2525063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2526063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2527063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2528063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2529063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2530063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 25315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2532200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 25332de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 25342de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 25350799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 25362de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 25370799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2538aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 25392de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 25400799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2541f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 25422de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 25430799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2544f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 25452de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 25460799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 25471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25482de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 25490799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2550aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 25512de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 25520799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2553f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 25540e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isAssignmentOp(Opcode Opc) { 25550e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return Opc >= BO_Assign && Opc <= BO_OrAssign; 25560e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 25570e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); } 25580e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 25590e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isCompoundAssignmentOp(Opcode Opc) { 25602de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 25612de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 25620e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isCompoundAssignmentOp() const { 25630e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isCompoundAssignmentOp(getOpcode()); 25640e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 25650e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 25660e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isShiftAssignOp(Opcode Opc) { 25672de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 25682de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 25690e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isShiftAssignOp() const { 25700e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isShiftAssignOp(getOpcode()); 25710e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 25721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 25744bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 25754bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 25765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 25781237c673c07f9d827129ba02720108816abde562Ted Kremenek 25791237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 258063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 258163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 258263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 25831237c673c07f9d827129ba02720108816abde562Ted Kremenek 25845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 258517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2586f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 25872333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 2588f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 25892333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 2590bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2591bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2592bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 25932333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 25941237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 25951237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 25965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2597ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 25981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 25992de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 26005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 26015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 26035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 26045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 26055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 26065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 26075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 26085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2609ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2610ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 26115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2612f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 2613f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2614f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 261517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 2616f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, true), 2617ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2618ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 26191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 26205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 26215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2623ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2624ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2625ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2626ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2627ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2628ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2629ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2630ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2631ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2632ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2633ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2634ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2635ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 26365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 26371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 26381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 26395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 26415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 264256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// AbstractConditionalOperator - An abstract base class for 264356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator and BinaryConditionalOperator. 264456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass AbstractConditionalOperator : public Expr { 264556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation QuestionLoc, ColonLoc; 264656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 264756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 264856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallprotected: 264956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, QualType T, 265056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprValueKind VK, ExprObjectKind OK, 265156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool TD, bool VD, 265256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool ContainsUnexpandedParameterPack, 265356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, 265456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation cloc) 265556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, T, VK, OK, TD, VD, ContainsUnexpandedParameterPack), 265656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QuestionLoc(qloc), ColonLoc(cloc) {} 265756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 265856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, EmptyShell Empty) 265956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, Empty) { } 266056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 266156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 266256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getCond - Return the expression representing the condition for 266356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 266456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const; 266556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 266656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 266756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 266856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const; 266956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 267056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 267156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 267256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 267356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const; 267456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 267556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getQuestionLoc() const { return QuestionLoc; } 267656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getColonLoc() const { return ColonLoc; } 267756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 267856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 267956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == ConditionalOperatorClass || 268056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->getStmtClass() == BinaryConditionalOperatorClass; 268156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 268256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const AbstractConditionalOperator *) { return true; } 268356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 268456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 268556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator - The ?: ternary operator. The GNU "missing 268656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// middle" extension is a BinaryConditionalOperator. 268756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass ConditionalOperator : public AbstractConditionalOperator { 26881237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 26895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 269056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 269156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 26925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 269347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 269456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation CLoc, Expr *rhs, 26950943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 269656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, t, VK, OK, 2697898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2698898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2699898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 270056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (lhs->isTypeDependent() || rhs->isTypeDependent()), 270156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (cond->isValueDependent() || lhs->isValueDependent() || 270256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->isValueDependent()), 2703bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 270456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall lhs->containsUnexpandedParameterPack() || 270556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 270656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QLoc, CLoc) { 27071237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 27081237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 27091237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 27101237c673c07f9d827129ba02720108816abde562Ted Kremenek } 27115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2712ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2713ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 271456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, Empty) { } 2715ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2716395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 271756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 27185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2719395a2abf0028968d85958610e393e067885dc14fTed Kremenek 272056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 272156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 272256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { return cast<Expr>(SubExprs[LHS]); } 27231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 272456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 272556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 272656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 27275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 2728f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 272956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 27305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 273147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 273263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 27335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 27345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 27375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 27391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27401237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 274163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 274263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 274363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 27445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 27455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 274656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// BinaryConditionalOperator - The GNU extension to the conditional 274756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operator which allows the middle operand to be omitted. 274856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// 274956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// This is a different expression kind on the assumption that almost 275056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// every client ends up needing to know that these are different. 275156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass BinaryConditionalOperator : public AbstractConditionalOperator { 275256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall enum { COMMON, COND, LHS, RHS, NUM_SUBEXPRS }; 275356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 275456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the common condition/left-hand-side expression, which will be 275556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated as the opaque value 275656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the condition, expressed in terms of the opaque value 275756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the left-hand-side, expressed in terms of the opaque value 275856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the right-hand-side 275956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Stmt *SubExprs[NUM_SUBEXPRS]; 276056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *OpaqueValue; 276156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 276256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 276356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 276456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall BinaryConditionalOperator(Expr *common, OpaqueValueExpr *opaqueValue, 276556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *cond, Expr *lhs, Expr *rhs, 276656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, SourceLocation cloc, 276756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 276856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, t, VK, OK, 276956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isTypeDependent() || rhs->isTypeDependent()), 277056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isValueDependent() || rhs->isValueDependent()), 277156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->containsUnexpandedParameterPack() || 277256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 277356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall qloc, cloc), 277456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue(opaqueValue) { 277556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COMMON] = common; 277656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COND] = cond; 277756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[LHS] = lhs; 277856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[RHS] = rhs; 277956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 278056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue->setSourceExpr(common); 278156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 278256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 278356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Build an empty conditional operator. 278456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit BinaryConditionalOperator(EmptyShell Empty) 278556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, Empty) { } 278656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 278756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCommon - Return the common expression, written to the 278856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// left of the condition. The opaque value will be bound to the 278956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// result of this expression. 279056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCommon() const { return cast<Expr>(SubExprs[COMMON]); } 279156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 279256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getOpaqueValue - Return the opaque value placeholder. 279356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *getOpaqueValue() const { return OpaqueValue; } 279456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 279556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCond - Return the condition expression; this is defined 279656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 279756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 279856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 279956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getTrueExpr - Return the subexpression which will be 280056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condition evaluates to true; this is defined 280156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 280256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { 280356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[LHS]); 280456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 280556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 280656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getFalseExpr - Return the subexpression which will be 280756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condnition evaluates to false; this is 280856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// defined in terms of the opaque value. 280956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const { 281056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[RHS]); 281156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 281256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 281356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 281456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return SourceRange(getCommon()->getLocStart(), getFalseExpr()->getLocEnd()); 281556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 281656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 281756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == BinaryConditionalOperatorClass; 281856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 281956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const BinaryConditionalOperator *) { return true; } 282056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 282156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // Iterators 282256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { 282356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return child_range(SubExprs, SubExprs + NUM_SUBEXPRS); 282456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 282556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 282656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 282756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getCond() const { 282856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 282956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getCond(); 283056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getCond(); 283156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 283256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 283356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getTrueExpr() const { 283456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 283556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getTrueExpr(); 283656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getTrueExpr(); 283756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 283856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 283956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getFalseExpr() const { 284056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 284156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getFalseExpr(); 284256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getFalseExpr(); 284356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 284456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 28456481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 28466481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 28475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 2848ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *Label; 28495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2850ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelDecl *L, 28516481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 2852bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false), 28532333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 28541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28557d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 28561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 28577d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 28587d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 28597d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 28607d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 28617d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 28627d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 28637d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 286463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 28655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 28665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2868ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *getLabel() const { return Label; } 2869ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void setLabel(LabelDecl *L) { Label = L; } 28707d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 28715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 28721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 28735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28746481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 28751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28761237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 287763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 28785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2879ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2880ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2881ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2882ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2883f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 2884f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 2885f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 2886ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 28875549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2888ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2889ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 28902333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2891d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2892d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 2893f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 2894bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor T->isDependentType(), false, false), 28952333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 28961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28976a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 28986a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 28996a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 29005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 29015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 29026a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 29036a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 290463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2905ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2906ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 29071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2908026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 29096a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2910026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 29116a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 29121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2913ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 29141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2915ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2916ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 29171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29181237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 291963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&SubStmt, &SubStmt+1); } 2920ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2921ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2922d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2923d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2924d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2925d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2926d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2927d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2928d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2929d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2930d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2931d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2932d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2933d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2934d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2935d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 29365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2937d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2938d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2939d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 2940a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 29411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 2942bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor SourceLocation RP); 294394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 294494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 29451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 294694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 294794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 294894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 294994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 29501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 295194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 295294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 295394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 295463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2955d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2956d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2957d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 29581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2959d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2960d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 29611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2962d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2963d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2964d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2965d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 29661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2967aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the array of expressions. 2968aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 2969aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 2970d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2971d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2972d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 29735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2974d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2975d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2976d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 29775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2978d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 29791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2980888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 298194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2982dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2983dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 29849a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2985d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 29861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2987d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 298863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 298963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+NumExprs); 299063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 2991d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2992d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2993d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 29941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2995d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 29967976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 29977976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 29987976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 29997976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 30007976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 30017976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 3002d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 30031237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 30045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 3005d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 3006d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 3007f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 3008f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 3009ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 3010bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent, 3011bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 3012bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->containsUnexpandedParameterPack() || 3013bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 30141237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 30151237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 30161237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 30171237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 30181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 30197976932a1c256d447316ffac58e9821417725e34Eli Friedman 302044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 302144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 302244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 30237976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 30247976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 30254ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isConditionTrue(const ASTContext &C) const; 30267976932a1c256d447316ffac58e9821417725e34Eli Friedman 30277976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 30287976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 30294ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad Expr *getChosenSubExpr(const ASTContext &C) const { 30307976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 30317976932a1c256d447316ffac58e9821417725e34Eli Friedman } 30327976932a1c256d447316ffac58e9821417725e34Eli Friedman 30335549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 303444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 30355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 303644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 30375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 303844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 303944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 304044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 304144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 30421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 304344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 304444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 30451237c673c07f9d827129ba02720108816abde562Ted Kremenek 304663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3047d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 3048d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3049d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 30501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 3051d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3052d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 30531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30541237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 305563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 305663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 305763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3058d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 3059d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 30602d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 30612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 30622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 30632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 30642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 30652d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 30662d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 30672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 30682d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 30692d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 30702d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 30711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 3072bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false), 3073f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 30742d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 307544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 307644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 307744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 30782d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 30792d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 308044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 30812d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 308263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 30832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 30842d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 30852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 30861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 30872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 30882d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 30891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30902d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 309163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 30922d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 30932d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 309474626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 30957c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 30965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 30972cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 30987c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 30997c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 31002cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 31012cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 3102f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 3103bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor t->isDependentType(), false, 3104bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (TInfo->getType()->containsUnexpandedParameterPack() || 3105bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor e->containsUnexpandedParameterPack())), 31062cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 31077c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 31087c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 31091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 311074626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 3111d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 3112d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 31135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 31145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 3115d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 3116d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 31172cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 31182cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 31192cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 3120d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 3121d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 31221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3123d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 3124d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 3125d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 312663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 31277c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 31281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 31297c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 31307c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 31317c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 31327c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 31331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31347c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 313563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 31367c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 31371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 31394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 31404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 31414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 31424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 31434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 31444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 31454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 31464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 3147196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 31484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 31494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 31504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 31514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 31524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 31534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 31544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 31554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 3156196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 31574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 31584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 31594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 31604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 31614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 31624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 31634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 31643498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 31654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 31664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 31674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 3168196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 31694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 31704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 31714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 31724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 31734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 31744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 317566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 3176ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 3177709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 3178709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 317966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 31801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 31824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 31834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 31844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 31854423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief Either: 31864423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes an array with more elements than 31874423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// there are initializers in the list, specifies an expression to be used 31884423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// for value initialization of the rest of the elements. 31894423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// Or 31904423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// If this initializer list initializes a union, specifies which 31914423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// field within the union will be initialized. 31924423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis llvm::PointerUnion<Expr *, FieldDecl *> ArrayFillerOrUnionFieldInit; 31930bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3194a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 3195a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 3196a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 3197a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 319866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 3199709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 3200709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 3201ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 3202d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3203d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 3204709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 3205709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 32061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3207ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 32081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3209aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the set of initializers. 3210aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getInits() { return reinterpret_cast<Expr **>(InitExprs.data()); } 3211aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 321216c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 3213c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 32144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 321566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 32161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 321716c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 3218c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 32194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 322066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 32211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 3223c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 32249e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 32259e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 3226c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 3227fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 3228709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 32291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 32314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 32324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 32334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 32344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 32354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 32364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 32374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 32384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 32394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 32404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 32414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 32424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 32434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 3244fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// accommodate the new entry. 3245709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 3246c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 32474423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// \brief If this initializer list initializes an array with more elements 32484423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// than there are initializers in the list, specifies an expression to be 32494423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis /// used for value initialization of the rest of the elements. 32504423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis Expr *getArrayFiller() { 32514423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<Expr *>(); 32524423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 32533e8dc2ac8926dfbebd8f2f6b74ceba4befccd4d2Argyrios Kyrtzidis void setArrayFiller(Expr *filler); 32544423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 32550bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 32560bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 32570bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 32580bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 32590bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 32600bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 32614423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis FieldDecl *getInitializedFieldInUnion() { 32624423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis return ArrayFillerOrUnionFieldInit.dyn_cast<FieldDecl *>(); 32634423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 32644423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis void setInitializedFieldInUnion(FieldDecl *FD) { 32654423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis ArrayFillerOrUnionFieldInit = FD; 32664423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis } 32670bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3268c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3269c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3270b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3271b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3272b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 32731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3274d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3275d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3276d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 327787fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 327887fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 32794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 32804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 32814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 32821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 32834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 32844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 32854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3286a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 32871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 3288d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 3289a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3290a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 329163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 3292c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 329366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 32941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 329566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 329666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 32971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 329866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 329963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 330063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall if (InitExprs.empty()) return child_range(); 330163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&InitExprs[0], &InitExprs[0] + InitExprs.size()); 330263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 33031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3304709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 33058111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3306709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 33078111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 33081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3309ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 33108111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3311ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 33128111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3313ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 33148111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3315ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 33168111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 33174423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis 33184423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtReader; 33194423ac0282acb8ba801eb05b38712438dc0c1e3eArgyrios Kyrtzidis friend class ASTStmtWriter; 332066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 332166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 332205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 332305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 332405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 332505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 332605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 332705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 332805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 33291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 333005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 333105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 333205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 333305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 333405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 333505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 333605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 333705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 333805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 333905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 334005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 334105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 334205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3343ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3344ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3345ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3346ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3347ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 334805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 334905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 335005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 335105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3352eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 335305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3354eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 335505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 335605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 335705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 335805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3359ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 3360ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 3361ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 3362ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 336305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 336405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 336505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 336605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 336705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3368ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3369319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3370ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3371eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 33729ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 33739ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 337405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3375d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3376d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3377d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 3378d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 337905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 338005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 338105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 338205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 338305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 338405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 338505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 338605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 338705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 338805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 33891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 339005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 339105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 33921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 339305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 339405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 339505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 339605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 339705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 339805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 339905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 340005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 340105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 340205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 340305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 340405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 340505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 340605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 340705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 34081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 340905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 341005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 341105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 341205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 341305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 341405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 341505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 341605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 341705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 341805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 341905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 342005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 342105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 342205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 342305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 342405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 342505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 342605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 342705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 342805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 342905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 343005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 343105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 343205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 343305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3434ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3435ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 343605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 34371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 34381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 343905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 344005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 344105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 344205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 344305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 344405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 344505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 34461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 344705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 344805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 344905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 345005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 345105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 345205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 345305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 345405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 345505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 34561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 345705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 345805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 345905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 346005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 346105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 346205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 346305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 346405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 346505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 346605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 346705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 346805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 346905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 347005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 347105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 347205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 347305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 347405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 347505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 347605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 347705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 347805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 347905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 348005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 348105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 348205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 348305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 348487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 348587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 348687f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 348787f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 348887f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 348905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 349005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 349105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 349205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 349305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 349405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 349505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 349605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 349705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 349805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 349905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 350005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 350105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 350205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 350305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 350405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 350505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 350605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 350705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 350805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 350905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 351005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 35114c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3512d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3513d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3514d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3515d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3516d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3517d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 35184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 35194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 35204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 35214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 35224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 35234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 352424f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceLocation getEndLocation() const { 352524f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return Kind == FieldDesignator ? getFieldLoc() : getRBracketLoc(); 352624f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 352724f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getSourceRange() const { 352824f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return SourceRange(getStartLocation(), getEndLocation()); 352924f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 353005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 353105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 35321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 353305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 353405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 353505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3536eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 353705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3538d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3539d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 354005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 354105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 354205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 354305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 354405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3545ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 35461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 35471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3548ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 354905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3550cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 3551cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 3552cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 3553cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 3554cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3555cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 3556cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 3557cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3558cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 3559711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3560711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3561c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3562319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3563d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 356405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 356505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 356605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 356705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 356805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 356905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 357005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3571d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 357205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 357305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3574eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3575eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3576d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 357705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 357805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 35791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 358005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 358105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 358205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 358305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 358405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 358505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 358605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3587d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3588d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3589d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3590d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3591d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3592d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3593d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3594d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3595d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3596d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3597d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3598d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3599d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3600d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3601d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3602d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3603d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3604d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3605d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3606d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3607ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3608ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3609319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3610ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3611ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 361224f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getDesignatorsSourceRange() const; 361324f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara 361463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 361505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 361605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 36171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 361805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 361905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 362005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 362105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 362263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 362363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = reinterpret_cast<Stmt**>(this + 1); 362463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumSubExprs); 362563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 36263498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 36273498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 36283498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 36293498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 36303498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 36311a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 36321a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 36333498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 36341a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 36351a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 36361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 36373498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 36381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 3639f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 3640bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false, false, false) { } 36413498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3642d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3643d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3644d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3645d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 36461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 36473498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 36483498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 36493498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 36503498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 365163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 36523498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 36533498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 36543498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 36553498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 365663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 365705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 365805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 36592ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 36602ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 36612ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 36622ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 36632ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 36642ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 36652ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 36661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 36672ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 36682ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 36692ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 367037bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 36711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36722ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 36731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 36752ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 36762ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 36772ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 36781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 36802ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 36812ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 36822ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 36832ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 368483ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 36851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36862ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 36872ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 36882ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 368963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 36902ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 36911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 36922ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 36931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 36942ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 36952ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 36961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36972ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 369863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 369963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&Exprs[0], &Exprs[0]+NumExprs); 370063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 370137bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 370260adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 37033397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 37042ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 37052ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 37061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3707f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// \brief Represents a C1X generic selection. 3708f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3709f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// A generic selection (C1X 6.5.1.1) contains an unevaluated controlling 3710f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression, followed by one or more generic associations. Each generic 3711f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association specifies a type name and an expression, or "default" and an 3712f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression (in which case it is known as a default generic association). 3713f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The type and value of the generic selection are identical to those of its 3714f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// result expression, which is defined as the expression in the generic 3715f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association with a type name that is compatible with the type of the 3716f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// controlling expression, or the expression in the default generic association 3717f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// if no types are compatible. For example: 3718f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3719f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @code 3720f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// _Generic(X, double: 1, float: 2, default: 3) 3721f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @endcode 3722f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3723f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The above expression evaluates to 1 if 1.0 is substituted for X, 2 if 1.0f 3724f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// or 3 if "hello". 3725f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3726f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// As an extension, generic selections are allowed in C++, where the following 3727f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// additional semantics apply: 3728f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3729f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Any generic selection whose controlling expression is type-dependent or 3730f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which names a dependent type in its association list is result-dependent, 3731f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which means that the choice of result expression is dependent. 3732f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Result-dependent generic associations are both type- and value-dependent. 3733f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourneclass GenericSelectionExpr : public Expr { 3734f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne enum { CONTROLLING, END_EXPR }; 3735f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes; 3736f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Stmt **SubExprs; 3737f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, ResultIndex; 3738f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, DefaultLoc, RParenLoc; 3739f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3740f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbournepublic: 3741f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 3742f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 3743f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 3744f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 3745f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 3746f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack, 3747f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned ResultIndex); 3748f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3749f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// This constructor is used in the result-dependent case. 3750f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 3751f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 3752f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 3753f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 3754f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 3755f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack); 3756f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3757f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne explicit GenericSelectionExpr(EmptyShell Empty) 3758f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne : Expr(GenericSelectionExprClass, Empty) { } 3759f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3760f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getNumAssocs() const { return NumAssocs; } 3761f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3762f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getGenericLoc() const { return GenericLoc; } 3763f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getDefaultLoc() const { return DefaultLoc; } 3764f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getRParenLoc() const { return RParenLoc; } 3765f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3766f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getAssocExpr(unsigned i) const { 3767f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[END_EXPR+i]); 3768f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3769f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getAssocExpr(unsigned i) { return cast<Expr>(SubExprs[END_EXPR+i]); } 3770f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3771f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) const { 3772f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return AssocTypes[i]; 3773f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3774f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) { return AssocTypes[i]; } 3775f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3776f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne QualType getAssocType(unsigned i) const { 3777f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne if (const TypeSourceInfo *TS = getAssocTypeSourceInfo(i)) 3778f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return TS->getType(); 3779f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne else 3780f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return QualType(); 3781f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3782f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3783f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getControllingExpr() const { 3784f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[CONTROLLING]); 3785f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3786f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getControllingExpr() { return cast<Expr>(SubExprs[CONTROLLING]); } 3787f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3788f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// Whether this generic selection is result-dependent. 3789f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool isResultDependent() const { return ResultIndex == -1U; } 3790f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3791f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The zero-based index of the result expression's generic association in 3792f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// the generic selection's association list. Defined only if the 3793f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 3794f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getResultIndex() const { 3795f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne assert(!isResultDependent() && "Generic selection is result-dependent"); 3796f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return ResultIndex; 3797f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3798f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3799f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The generic selection's result expression. Defined only if the 3800f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 3801f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getResultExpr() const { return getAssocExpr(getResultIndex()); } 3802f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getResultExpr() { return getAssocExpr(getResultIndex()); } 3803f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3804f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceRange getSourceRange() const { 3805f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return SourceRange(GenericLoc, RParenLoc); 3806f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3807f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const Stmt *T) { 3808f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return T->getStmtClass() == GenericSelectionExprClass; 3809f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3810f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const GenericSelectionExpr *) { return true; } 3811f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3812f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne child_range children() { 3813f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return child_range(SubExprs, SubExprs+END_EXPR+NumAssocs); 3814f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3815f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3816f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne friend class ASTStmtReader; 3817f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne}; 3818f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 38194eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 38204eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 38214eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 38224eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3823a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3824a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3825a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3826a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3827a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 382873525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 382973525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 383073525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3831a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3832a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3833d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3834a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3835a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3836f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 3837f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 38380943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 38390943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 3840bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 3841bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 3842d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 38431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3844d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3845d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3846d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3847d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3848a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3849a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3850d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3851d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3852d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3853d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3854d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3855d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3856d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3857d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3858a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3859a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 38601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3861a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3862a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3863a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 38641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3865a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3866a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3867a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 38681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 386963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3870a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3871a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 38721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38732140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 38742140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 38752140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 38761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 38781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3879a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3880a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 38811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3882a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 388363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 3884a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3885a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3886a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 388756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 38889c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 38894eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 389056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 389156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 38924eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3893469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall BlockExpr(BlockDecl *BD, QualType ty) 3894f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 3895bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType(), false, false), 3896469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall TheBlock(BD) {} 38979c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 389884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 389984af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 390084af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3901d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 390256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 390384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 390484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 390556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 390656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 390756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 390856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 39099c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 391063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 391156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 39129c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 39139c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 391456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 391556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 391656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 39171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 39189c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 39194eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 39204eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 39211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39224eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 392363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 39244eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 39251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39266b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// BlockDeclRefExpr - A reference to a local variable declared in an 39276b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// enclosing scope. 39284eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 39296b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *D; 39304eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 39317d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 39327d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 39334eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 39346b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall BlockDeclRefExpr(VarDecl *d, QualType t, ExprValueKind VK, 39356b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall SourceLocation l, bool ByRef, bool constAdded = false); 393694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 393794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 393894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 393994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 394094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 39411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39426b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *getDecl() { return D; } 39436b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const VarDecl *getDecl() const { return D; } 39446b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall void setDecl(VarDecl *VD) { D = VD; } 394594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 394694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 394794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 394894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 394963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 39501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39514eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 395294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 39531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39547d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 39557d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 395689f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian 39571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 39581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 39594eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 39604eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 39611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39624eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 396363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 39644eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 39654eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 39665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 39675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 39685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3969