Expr.h revision f111d935722ed488144600cea5ed03a6b5069e8f
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> 30c5ae899b4bbf65488445316c63168079177db0edSteve Naroff#include <vector> 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 33590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 34c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 35c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 36c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 37c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 388e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 39c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 4056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 41409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson class CXXBaseSpecifier; 4288a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 4388a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 44f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall class ObjCPropertyRefExpr; 45833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall class TemplateArgumentLoc; 46d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall class TemplateArgumentListInfo; 4756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall class OpaqueValueExpr; 4888a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 497ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 50f871d0cc377a1367b519a6cce26be74607566ebaJohn McCalltypedef llvm::SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; 517ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 58898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 598e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCallprotected: 60f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, 61bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor bool TD, bool VD, bool ContainsUnexpandedParameterPack) : Stmt(SC) { 628e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.TypeDependent = TD; 638e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.ValueDependent = VD; 64f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ValueKind = VK; 65f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ObjectKind = OK; 66bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = ContainsUnexpandedParameterPack; 67898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 68898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 69898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 700b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 710b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 720b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 74f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 769d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 779d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 789d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 799d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 809d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 819d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 829d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 83905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 848320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 85f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 879d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 8877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 89898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 90898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 91898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 93898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 94898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 95898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 968e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isValueDependent() const { return ExprBits.ValueDependent; } 97898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 980b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 998e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setValueDependent(bool VD) { ExprBits.ValueDependent = VD; } 1000b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 104898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 105898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 106898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 1128e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isTypeDependent() const { return ExprBits.TypeDependent; } 113898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1140b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1158e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setTypeDependent(bool TD) { ExprBits.TypeDependent = TD; } 1160b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 117d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Whether this expression contains an unexpanded parameter 118d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// pack (for C++0x variadic templates). 119d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 120d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// Given the following function template: 121d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 122d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \code 123d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// template<typename F, typename ...Types> 124d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// void forward(const F &f, Types &&...args) { 125d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// f(static_cast<Types&&>(args)...); 126d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// } 127d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \endcode 128d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 129d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// The expressions \c args and \c static_cast<Types&&>(args) both 130d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// contain parameter packs. 131d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool containsUnexpandedParameterPack() const { 132d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor return ExprBits.ContainsUnexpandedParameterPack; 133d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 134d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 135bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// \brief Set the bit that describes whether this expression 136bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// contains an unexpanded parameter pack. 137bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void setContainsUnexpandedParameterPack(bool PP = true) { 138bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = PP; 139bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor } 140bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 14363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const; 1441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 145026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 146026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 147026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 148026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 149026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 150df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1527eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// isLValue - True if this expression is an "l-value" according to 1537eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the rules of the current language. C and C++ give somewhat 1547eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// different rules for this concept, but in general, the result of 1557eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// an l-value expression identifies a specific object whereas the 1567eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// result of an r-value expression is a value detached from any 1577eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// specific storage. 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1597eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// C++0x divides the concept of "r-value" into pure r-values 1607eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// ("pr-values") and so-called expiring values ("x-values"), which 1617eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// identify specific objects that can be safely cannibalized for 1627eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// their resources. This is an unfortunate abuse of terminology on 1637eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the part of the C++ committee. In Clang, when we say "r-value", 1647eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// we generally mean a pr-value. 1657eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isLValue() const { return getValueKind() == VK_LValue; } 1667eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isRValue() const { return getValueKind() == VK_RValue; } 1677eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isXValue() const { return getValueKind() == VK_XValue; } 1687eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isGLValue() const { return getValueKind() != VK_RValue; } 1697eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall 1707eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall enum LValueClassification { 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 174fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 17586f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 176077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian LV_InvalidMessageExpression, 1772514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 178e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 179e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 1817eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// Reasons why an expression might not be an l-value. 1827eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall LValueClassification ClassifyLValue(ASTContext &Ctx) const; 18353202857c60214d80950a975e6e52aebf30bd16aEli Friedman 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 18944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 19044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 19144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 19244e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 197fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 199ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 2024f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 2035daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 204ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 20586f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 2062514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 207e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 208077f490d0a514dcc448475f33f799934252b85a7Fariborz Jahanian MLV_InvalidMessageExpression, 209e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor MLV_ClassTemporary 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 21144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 21244e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 2131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2142111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 2152111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 2162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 2172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 2192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 2202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 2212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 2222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 2232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue 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 489369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Result type of CanThrow(). 490369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl enum CanThrowResult { 491369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Cannot, 492369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Dependent, 493369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Can 494369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl }; 495369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Test if this expression, if evaluated, might throw, according to 496369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// the rules of C++ [expr.unary.noexcept]. 497369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CanThrowResult CanThrow(ASTContext &C) const; 498369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl 4994e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 5001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 5014e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 5024e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 5032b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 50456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 50556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 50627c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 50756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 5081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5092fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 5102fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 5112fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 5122fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 5134d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const Expr *IgnoreParenImpCasts() const { 5144d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 5154d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 516f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 517f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 518f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 519f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall Expr *IgnoreParenLValueCasts(); 520f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 521f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const Expr *IgnoreParenLValueCasts() const { 522f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 523f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 5244d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 525ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 526ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 527ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 528ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 5291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5306eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 5316eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 5326eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 533c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 5346eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 5356eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 5366eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 5376eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 538c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 539558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 540558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 541558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 5422f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 54375e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Whether this expression is an implicit reference to 'this' in C++. 54475e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitCXXThis() const; 54575e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor 5462b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 5474e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 5484e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 54956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 55056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 55156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 552ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 553ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 554ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 5551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 556898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 557898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 558898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 5591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 5611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 5685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 5695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 57156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 57256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// fixed type and value class. These don't correspond to concrete 57356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// syntax; instead they're used to express operations (usually copy 57456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operations) on values whose source is generally obvious from 57556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// context. 57656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass OpaqueValueExpr : public Expr { 57756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 57856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *SourceExpr; 57956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation Loc; 58056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 58156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 58256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK, 58356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprObjectKind OK = OK_Ordinary) 58456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 58556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->isDependentType(), T->isDependentType(), false), 58656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceExpr(0), Loc(Loc) { 58756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 58856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 58956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Given an expression which invokes a copy constructor --- i.e. a 59056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// CXXConstructExpr, possibly wrapped in an ExprWithCleanups --- 59156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// find the OpaqueValueExpr that's the source of the construction. 59256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static const OpaqueValueExpr *findInCopyConstruct(const Expr *expr); 59356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 59456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit OpaqueValueExpr(EmptyShell Empty) 59556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, Empty) { } 59656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 59756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Retrieve the location of this expression. 59856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getLocation() const { return Loc; } 59956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 60056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 60156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getSourceRange(); 60256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 60356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 60456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getExprLoc() const { 60556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getExprLoc(); 60656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 60756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 60856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 60956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { return child_range(); } 61056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 61156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression of an opaque value expression is the 61256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which originally generated the value. This is 61356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// provided as a convenience for analyses that don't wish to 61456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// precisely model the execution behavior of the program. 61556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 61656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression is typically set when building the 61756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which binds the opaque value expression in the first 61856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// place. 61956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getSourceExpr() const { return SourceExpr; } 62056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall void setSourceExpr(Expr *e) { SourceExpr = e; } 62156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 62256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 62356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == OpaqueValueExprClass; 62456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 62556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const OpaqueValueExpr *) { return true; } 62656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 62756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 628a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 629a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 630a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 63140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// \brief The nested-name-specifier that qualifies the name, including 63240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// source-location information. 63340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc; 634a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 635a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 636a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 637a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 638a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 639a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 640a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 641c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 642a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 643a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 644c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 645a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 646a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 647a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 648a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 649c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 650a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 651833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 652833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 653a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 654c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 655a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 656833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 657833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 658a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 659d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 660d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 661bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void initializeFrom(const TemplateArgumentListInfo &List, 662bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor bool &Dependent, bool &ContainsUnexpandedParameterPack); 663d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 6648dfbd8b252ba4e6cf4b7a3422f6ef0ca21312dfeArgyrios Kyrtzidis static std::size_t sizeFor(unsigned NumTemplateArgs); 665d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 666a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 667c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 671a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 672c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 673a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 674a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 675c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 676a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 677a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 678a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 679c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 680c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 681a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 682c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 683a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 684dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 6852577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 686a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 6889e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 6892577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// DNLoc - Provides source/type location info for the 6902577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in DecoratedD. 6912577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 6922577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 693a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 694a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 6952cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 696a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 697c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 698a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 699a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 700c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 701a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 702a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 703a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 704a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 705096832c5ed5b9106fa177ebc148489760c3bc496John McCall 70640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor DeclRefExpr(NestedNameSpecifierLoc QualifierLoc, 707dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 708d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 709f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 710663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 71140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor DeclRefExpr(NestedNameSpecifierLoc QualifierLoc, 7122577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 7132577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 714f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 7152577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 716663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 717663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 718663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 719c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 7200da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 7210da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 7220da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 7239e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 725f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, ExprValueKind VK, SourceLocation l) : 726bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor Expr(DeclRefExprClass, t, VK, OK_Ordinary, false, false, false), 727f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DecoratedD(d, 0), Loc(l) { 7280da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 7290da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 7301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 731a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 73240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 733dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 734a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 735f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 7360da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 737663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 7382577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 73940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 7402577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 7412577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 742f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 7432577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 7442577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 745663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 746663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 747def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor bool HasQualifier, 748def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor bool HasExplicitTemplateArgs, 749def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor unsigned NumTemplateArgs); 750c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 751dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 752dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 753dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 754904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 7552577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 7562577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 7572577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 7582577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 7599e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 7600b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 76163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 7621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 763a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 764a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 765a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 766c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 767c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 768a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 769a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 770a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 771a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 772c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 77340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getNameQualifier()->QualifierLoc.getNestedNameSpecifier(); 774a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 77540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 77640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// \brief If the name was qualified, retrieves the nested-name-specifier 77740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// that precedes the name, with source-location information. 77840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 77940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 78040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 78140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 78240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getNameQualifier()->QualifierLoc; 78340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 78440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 785096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 786096832c5ed5b9106fa177ebc148489760c3bc496John McCall return (DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag); 787096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 788096832c5ed5b9106fa177ebc148489760c3bc496John McCall 789096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 790096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 791096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 792096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(hasExplicitTemplateArgs()); 793096832c5ed5b9106fa177ebc148489760c3bc496John McCall 794096832c5ed5b9106fa177ebc148489760c3bc496John McCall if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 795096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 796096832c5ed5b9106fa177ebc148489760c3bc496John McCall 797096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 798096832c5ed5b9106fa177ebc148489760c3bc496John McCall getNameQualifier() + 1); 799096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 800096832c5ed5b9106fa177ebc148489760c3bc496John McCall 801096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 802096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 803096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 804096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 805a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 806d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 807096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 808096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 809096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 810096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getExplicitTemplateArgsOpt() const { 811096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 812096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 813096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 814096832c5ed5b9106fa177ebc148489760c3bc496John McCall 815d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 816d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 817d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 818096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 819096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 820d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 821c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 822a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 823a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 824a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 825096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 826a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 827c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 828096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 829a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 830c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 831a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 832a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 833833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 834096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 835a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 836c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 837096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 838a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 839c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 840a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 841a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 842a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 843096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 844a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 845c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 846096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 847a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 848c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 849a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 850a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 851a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 852096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 853a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 854c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 855096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 856a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 857c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 8581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 85999e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 8621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 86377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 86463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 865663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 86660adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 8673397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 870d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 871d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 872227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 873227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 874227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 875227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 876848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 877848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 878848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 879848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 880227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 8811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 882227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 883227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 884227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 885227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 8861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 887f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 888bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor type->isDependentType(), type->isDependentType(), 889bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 890f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 8911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 89217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 8931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 89417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 89517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 896227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 89717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 89817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 89917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 90017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 90117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 902848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 9033a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 90463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 905227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 9061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 908227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 909d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 9101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 91177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 91263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 913227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 914227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 9159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 9169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 9179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 9189996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 9199996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 9209996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 9219996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 9229996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 9239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 9249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned BitWidth; 9259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 9269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 9279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 9289996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 9299996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9309996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 9319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 9339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 9349996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9359996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 9369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage() : BitWidth(0), VAL(0) { } 9379996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 9399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 9409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 9419996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 9429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 9439996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 9449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 9459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 9469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 9479996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APIntStorage : public APNumericStorage { 9499996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 9509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return getIntValue(); } 9519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 9529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 9539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9549996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APFloatStorage : public APNumericStorage { 9559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 9569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return llvm::APFloat(getIntValue()); } 9579996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 9589996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 9599996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 9609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 9619996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 9639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APIntStorage Num; 9645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 9659996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9669996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 9679996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 9689996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 9699996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 9739996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral(ASTContext &C, const llvm::APInt &V, 9749996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l) 975bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(IntegerLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 976bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 977f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l) { 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 9799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 981a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 9829996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 9839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // or UnsignedLongLongTy 9849996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 9859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 9869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 9870b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9889996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return Num.getValue(); } 98963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 9905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 991313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 992313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 993313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 9949996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { Num.setValue(C, Val); } 9950b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 9960b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 9995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 10011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 100277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 100363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 1009c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 1012c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 1013bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1014bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 1015f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Value(value), Loc(l), IsWide(iswide) { 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10170b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 10180b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 10190b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 10200b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1021018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 1022c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 10231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 102463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 10251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10280b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 10290b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 10300b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 10310b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 10321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 10345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 103677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 103777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 103863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 10429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APFloatStorage Num; 1043720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 10459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 1047720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 1048bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(FloatingLiteralClass, Type, VK_RValue, OK_Ordinary, false, false, 1049bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 10509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IsExact(isexact), Loc(L) { 10519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 10529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 105417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 10551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 10569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(FloatingLiteralClass, Empty), IsExact(false) { } 105717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 10589996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 10599996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 10609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 10619996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 10629996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return Num.getValue(); } 10649996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 10659996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis Num.setValue(C, Val); 10669996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 106717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1068720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 106917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 1070c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 1071da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 1072da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 1073da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 1074da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 10751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 107617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 107717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 107817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 107963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 10851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 108677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 108763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10905d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 10915d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 10925d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 10935d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 10945d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 10955d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 10965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 10975d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 10985d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 1099bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false, 1100bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 1101f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 11021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1103cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 11041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 1105cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 1106cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 11075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 11085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1109cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1110cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 111163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return Val->getSourceRange(); } 11121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 11145d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 11155d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 11161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11175d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 111863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 11195d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 11205d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1121e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1122e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 1123e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1124a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1125c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1126c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1127690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1128690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 11298bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1130690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1131c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1132c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1133c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1134c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1135c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1136c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 11383e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson friend class ASTStmtReader; 11393e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 11433e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool IsPascal; 1144726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 1145726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 11462085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1147f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1148bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false, false) {} 11491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11512085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 11522085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 11532085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 11543e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson unsigned ByteLength, bool Wide, bool Pascal, 11553e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson QualType Ty, 1156a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 11572085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 11582085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 11591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 11603e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson unsigned ByteLength, bool Wide, 11613e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool Pascal, QualType Ty, SourceLocation Loc) { 11623e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson return Create(C, StrData, ByteLength, Wide, Pascal, Ty, &Loc, 1); 11632085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1164a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1165673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1166673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1167673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1168b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 1169b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 1170b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 11712f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 1173673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1174673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 1175b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 1176673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 11783e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson bool isPascal() const { return IsPascal; } 11793e2193ce5feb2feb092e5ae615e85148e06e9fd2Anders Carlsson 11808d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1181b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 1182b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1183b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 118433fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 118533fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 118633fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1187726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1188726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1189726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 11901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1191726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1192726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1193726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1194726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 11951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1196673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1197673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1198673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 119908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner 120008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 120108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 120208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 120308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 120408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 120508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 120608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 120708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 120808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 120908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1210673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1211b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1212b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1213b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 121563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 12161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 12221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 122377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 122463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 12255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 12295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 12315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1234898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1235f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 1236bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->isTypeDependent(), val->isValueDependent(), 1237bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->containsUnexpandedParameterPack()), 1238898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 12391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1240c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 12411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1242c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1243c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 12445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 12455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1246c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1247c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 124863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(L, R); } 12495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1250313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1251313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1252c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1253313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1254313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1255313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1256c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1257313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 12581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 12605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 12621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 126377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 126463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 12655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12680518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 12690518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1271dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1272dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1273dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1274dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1275dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1276dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1277dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 12785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12805baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 12815baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 12825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 12830799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 12845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12850799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 12861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 12875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1288f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1289f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1290f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1291de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 1292bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->isValueDependent(), 1293bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->containsUnexpandedParameterPack()), 12940799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12960b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 12971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 12982de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 12990b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13000799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 13010b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 13020b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 13040b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 13050b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 13080b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 13090b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 13112085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 13122de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 13132085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 13145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1315cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 13162085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 13172de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 13182085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 13195a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 13200799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 13210799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 13222de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 1323993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc == UO_PreInc || Opc == UO_PostInc; 13242de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 13252de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 1326993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc <= UO_PreDec; 13272de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 13282de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 13292de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 13302de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 13310799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 13321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 13345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 13355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 13365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1337bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1338bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1339bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1340bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1341bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1342bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1343bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1344bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 134563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 13465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 13485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 13495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 13505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 135163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return Loc; } 13521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 13541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 13555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 13571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 135877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 135963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 13638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 13648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 13658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 13668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1367c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// double d; 13688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 13698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 13708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 13718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 13728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 13738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1374c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 13758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 13778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 13788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 13798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 13808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 13818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 13828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1383cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 13848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1385cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 13868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1387cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1388cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1389cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1390cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1391cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 13928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 13938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 13958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1396c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 13988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1399c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 14018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1402c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - An unsigned index into the array of Expr*'s stored after this node 14038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 14048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 14058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 14068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1407c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - A CXXBaseSpecifier*, for references that look at a field in a 1408cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 14098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1410c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 14128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1413c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 14148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 14158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1416c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1418c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 14198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1420c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 14218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1422c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 14248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 14258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1426c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 14278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1428cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1429cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1430cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1431cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1432c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1434c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt Kind getKind() const { 14358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 14368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1437c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 14398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 14408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 14418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 14428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 14438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 14468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 14478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1448cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 14498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1450c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 14528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 14538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1454c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1455cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1456cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1457cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1458c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1459cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1460c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 14628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 14638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 14648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1465c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// contains the location of the period (if there is one) and the 14668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 146706dec892b5300b43263d25c5476b506c9d6cfbadAbramo Bagnara SourceRange getSourceRange() const { return Range; } 14688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 14698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1471c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 14738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 14748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 14758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 14768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 14778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 14788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1479c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1480c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfExpr(ASTContext &C, QualType type, 14818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1482c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 14838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 14848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 14858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 14878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1488c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 14898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1491c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1492c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *Create(ASTContext &C, QualType type, 1493c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1494c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 14958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 14968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 14978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1498c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *CreateEmpty(ASTContext &C, 14998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 15008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 15028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 15038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 15048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 15068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 15078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1508c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 15108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 15118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 15138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 15148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1515c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor const OffsetOfNode &getComponent(unsigned Idx) { 15178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 15188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<OffsetOfNode *> (this + 1)[Idx]; 15198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 15228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 15238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 15248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1525c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 15278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 15288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 15318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 15328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 15338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 15348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 15378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 15388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 15398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 15408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1541c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 15438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 15448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 154663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 15478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 15488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 15518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 15528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 15558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 155763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 155863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = 155963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall reinterpret_cast<Stmt**>(reinterpret_cast<OffsetOfNode*>(this + 1) 156063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall + NumComps); 156163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumExprs); 156263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 15638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 15648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1565f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated) 1566f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// expression operand. Used for sizeof/alignof (C99 6.5.3.4) and 1567f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// vec_step (OpenCL 1.1 6.11.12). 1568f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourneclass UnaryExprOrTypeTraitExpr : public Expr { 1569f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne unsigned Kind : 2; 15700518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1571d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1572a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1573d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1574d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 15755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 157642602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 15775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1578f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, TypeSourceInfo *TInfo, 1579f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1580f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1581f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1582ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 15832850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1584bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->isDependentType(), 1585bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->containsUnexpandedParameterPack()), 1586f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Kind(ExprKind), isType(true), OpLoc(op), RParenLoc(rp) { 1587a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1588ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1589ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 1590f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, Expr *E, 1591f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1592f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1593f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1594ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1595ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1596bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->isTypeDependent(), 1597bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->containsUnexpandedParameterPack()), 1598f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Kind(ExprKind), isType(false), OpLoc(op), RParenLoc(rp) { 1599ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1600d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 16010518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 16020b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 1603f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne explicit UnaryExprOrTypeTraitExpr(EmptyShell Empty) 1604f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne : Expr(UnaryExprOrTypeTraitExprClass, Empty) { } 16050b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1606f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTrait getKind() const { 1607f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return static_cast<UnaryExprOrTypeTrait>(Kind); 1608f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne } 1609f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne void setKind(UnaryExprOrTypeTrait K) { Kind = K; } 16100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16110518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 16120518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 16135ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 16145ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1615a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 16160518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 16175ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 16180518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1619caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 16200518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1621d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 16220518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1623caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1624f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return const_cast<UnaryExprOrTypeTraitExpr*>(this)->getArgumentExpr(); 1625caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 16260b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16270b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1628a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1629a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 16301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 16310b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 16320b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16330518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 16340518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 16350518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 16360518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 16370518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 16380518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 163976e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 16400b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 16410b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16420b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 16430b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1644866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 164563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 1646866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1647866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 1650f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return T->getStmtClass() == UnaryExprOrTypeTraitExprClass; 16515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1652f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne static bool classof(const UnaryExprOrTypeTraitExpr *) { return true; } 16531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 165477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 165563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children(); 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 16615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 16635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 166477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 16651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 16665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 16675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16682324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 1669f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 167073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 1671f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 16722850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 1673bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 1674bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 1675bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 16762850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 167773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 167873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 167973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 16801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1681cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1682cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1683cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1684cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16852324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 16862324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 16872324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 16882324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 16892324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 169033fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 169133fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 169233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 169333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 16945549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 16955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1696cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1697cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16985549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 16995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1700cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 17011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 17035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 170477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 17051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 17075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 17082324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 17091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 17115549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 17122324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 17131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 171477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 17155549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 17161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 17171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 171863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 171977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 17205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1722026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1723cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1724cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 172563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 17265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 17295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 17311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 173277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 173363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 173463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 173563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 17365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1739b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 17401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1741b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 17421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1743b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1744b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 17455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 1746cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne enum { FN=0, PREARGS_START=1 }; 17475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 17485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 17495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 17501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1751b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1752cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne // These versions of the constructor are for derived classes. 1753cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext& C, StmtClass SC, Expr *fn, unsigned NumPreArgs, 1754cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **args, unsigned numargs, QualType t, ExprValueKind VK, 1755cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SourceLocation rparenloc); 1756cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext &C, StmtClass SC, unsigned NumPreArgs, EmptyShell Empty); 1757cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 1758cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Stmt *getPreArg(unsigned i) { 1759cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1760cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 1761cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1762cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const Stmt *getPreArg(unsigned i) const { 1763cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1764cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 1765cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1766cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne void setPreArg(unsigned i, Stmt *PreArg) { 1767cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1768cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[PREARGS_START+i] = PreArg; 1769cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1770cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 1771cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne unsigned getNumPreArgs() const { return CallExprBits.NumPreArgs; } 177242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 17735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 1775f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 17761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17771f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1778ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 17791f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 17805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 17815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 178218b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1783a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1784d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 1785d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 1786d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 1787d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 1788d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 1789a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1790a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1791bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1792bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1793bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1794a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 17955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 17965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 17975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 17981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1799aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the call arguments. 1800cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **getArgs() { 1801cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return reinterpret_cast<Expr **>(SubExprs+getNumPreArgs()+PREARGS_START); 1802cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1803aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 18045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 18055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 18065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 1807cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 18085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 18105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 1811cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 18125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1814934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1815934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1816934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1817cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[Arg+getNumPreArgs()+PREARGS_START] = ArgExpr; 1818934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 18191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1820d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1821d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1822d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 18238189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 18241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 18265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 18271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1828cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_begin() { return SubExprs+PREARGS_START+getNumPreArgs(); } 1829cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_end() { 1830cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 1831cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1832cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_begin() const { 1833cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs(); 1834cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1835cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_end() const { 1836cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 1837cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 18381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 18405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 18415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 18425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1843cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1844cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 18454ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad unsigned isBuiltinCall(const ASTContext &Context) const; 18461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 18481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 18496dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 18506dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 18511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1852d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 18531f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1854866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 18552882eca5a184c78f793188083f6ce539740a5cf2John McCall SourceRange getSourceRange() const; 18561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 18584bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 18594bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 18605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 186288a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 186377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 186463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 186563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], 186663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall &SubExprs[0]+NumArgs+getNumPreArgs()+PREARGS_START); 186763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 18685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 18695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1870ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 18715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 18725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 18736bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 18746bb8017bb9e828d118e15e59d71c66bba323c364John McCall struct MemberNameQualifier : public NameQualifier { 1875161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 18766bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 18776bb8017bb9e828d118e15e59d71c66bba323c364John McCall 1878ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1879ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 18805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 18811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1882ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1883ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1884f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 18851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1886ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 18875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 18881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18892577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 18902577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 18912577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 18922577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 1893ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 189483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 18951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 189683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 18976bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 18986bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 1899c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 19006bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 19011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1902c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1903c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1904c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1905c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 19066bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 1907c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 19081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 190983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 19106bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 19116bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 19126bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 191383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 191483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 191583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 19166bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 1917c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1918c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1921f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1922f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 1923f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1924f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1925bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 1926bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 19272577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 19282577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 19292577743c5650c646fb705df01403707e94f2df04Abramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) { 19302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 19312577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 19322577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 19332577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 19342577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 19352577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 19362577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // for constructors, destructors and conversion oeprators). 19372577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1938f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 1939f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1940f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1941bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 1942bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 19432577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 19442577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 19456bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1946510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 19471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 194840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 1949161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 19502577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 1951d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1952f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 19531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 195488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 19555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 195657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 195757e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 195857e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 195957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 196057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1961f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1962f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 19631f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 19646bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1965161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 19666bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1967161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1968161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 19696bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 19706bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 19716bb8017bb9e828d118e15e59d71c66bba323c364John McCall 19721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 19730979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 19740979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 19756bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 19761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 197883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 197983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 19801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 19816bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 198283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 19831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 198440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc.getNestedNameSpecifier(); 198540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 198640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 198740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// \brief If the member name was qualified, retrieves the 198840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// nested-name-specifier that precedes the member name, with source-location 198940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// information. 199040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 199140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 199240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 199340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 199440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc; 199583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1996c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1997c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1998c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1999096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 20001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 2001c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2003d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 2004d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 2005d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 2006096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 2007096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 2008096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2009096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2010096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2011096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 2012096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 2013096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 2014096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(HasExplicitTemplateArgumentList); 2015096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!HasQualifierOrFoundDecl) 2016096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 2017096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2018096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 2019096832c5ed5b9106fa177ebc148489760c3bc496John McCall getMemberQualifier() + 1); 2020096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2021096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2022096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2023096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 2024096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 2025096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 2026096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 2027096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2028096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2029096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 2030096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 2031096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 2032096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getOptionalExplicitTemplateArgs() const { 2033096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 2034096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 2035d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 2036c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 20371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 2038c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 20391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 2040c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 2041c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 20421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2043096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 2044c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2046c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 2047c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 2048833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 2049c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 20501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 20511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2052096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 2053c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2055c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 2056c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 20571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 2058c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 20591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 20601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2061096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 2062c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 2065c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 20661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 2067c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 2068c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 20691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2070096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 2071c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20732577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 20742577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 20752577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 20762577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 20772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 20782577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 20795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 20801f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 20811f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 2082ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 2083ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 2084026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 20851f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 20865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 208775e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor SourceRange getSourceRange() const; 208875e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor 208963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return MemberLoc; } 20905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 209175e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Determine whether the base of this explicit is implicit. 209275e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitAccess() const { 209375e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor return getBase() && getBase()->isImplicitCXXThis(); 209475e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor } 209575e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor 20961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 209783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 20985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 21001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21011237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 210263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 21034045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 21044045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 21054045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 21065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 21075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 2109aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 2110aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 21110fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 21120fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 21130fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 21140fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 21151d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 21161d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 21171d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 211842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 21195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 2120e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 2121aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 212242f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 2123f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 2124f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 2125bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor tinfo->getType()->isDependentType(), 2126bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->isValueDependent(), 2127bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->containsUnexpandedParameterPack()), 212842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 21291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2130ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 2131ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 2132ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 2133ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 21345549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 21355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 2136ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 2137e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 2138e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 2139ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 2140ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 21410fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 2142ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2143ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 214442f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 214542f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 214642f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 214763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 21480fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 21490fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 21500fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 21510fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 215273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 21530fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 215473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2155aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 21561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2158aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 2159aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 21601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21611237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 216263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Init, &Init+1); } 2163aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2164aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 216549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 216649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 216749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 216849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 21690835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2170cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 21715baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 21721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2173cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 21740835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2175409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2176daa8e4e888758d55a7a759dd4a91b83921cef222John McCall void CheckCastConsistency() const { 2177409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 2178409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 21795cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 2180cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 2181cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 2182409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 2183409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 2184f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(!path_empty() && "Cast kind should have a base path!"); 2185f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 2186409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2187409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 2188409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 2189409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 2190409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 2191409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 2192409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 2193409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 2194404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall case CK_NullToPointer: 2195409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 2196409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 2197409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 2198409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 2199409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 2200409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 2201409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 2202409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 2203409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 2204409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 2205409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 2206569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor case CK_ObjCObjectLValueCast: 22072bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingRealToComplex: 2208f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToReal: 22092bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingComplexCast: 2210f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToIntegralComplex: 22112bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralRealToComplex: 2212f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToReal: 22132bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralComplexCast: 2214f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToFloatingComplex: 2215daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(!getType()->isBooleanType() && "unheralded conversion to bool"); 2216daa8e4e888758d55a7a759dd4a91b83921cef222John McCall // fallthrough to check for null base path 2217daa8e4e888758d55a7a759dd4a91b83921cef222John McCall 2218daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_Dependent: 22190ae287a498b8cec2086fe6b7e753cbb3df63e74aJohn McCall case CK_LValueToRValue: 2220f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall case CK_GetObjCProperty: 2221daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_NoOp: 2222daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_PointerToBoolean: 2223daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralToBoolean: 2224daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingToBoolean: 2225daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_MemberPointerToBoolean: 2226daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingComplexToBoolean: 2227daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralComplexToBoolean: 22285082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_LValueBitCast: // -> bool& 22295082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_UserDefinedConversion: // operator bool() 2230f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(path_empty() && "Cast kind should not have a base path!"); 2231409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 2232409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2233409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 2234409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2235409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2236f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2237f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2238f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2239f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2240f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 22410835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2242f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2243f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2244f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2245898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2246898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2247898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2248898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2249898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 2250bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType() || (op && op->isValueDependent()), 2251bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (ty->containsUnexpandedParameterPack() || 2252bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor op->containsUnexpandedParameterPack())), 22538e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2254daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 22558e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 22568e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 2257daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 2258f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 22591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2260087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2261f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 22628e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 22638e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 22648e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 22651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22660835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 22678e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 22688e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2269f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2270f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 22710835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 22720835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2273087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2274087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 22756eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 22766eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 22776eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 22786eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 22796eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 22806eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 22816eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 228241b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2283f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2284f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 22858e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 22868e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2287f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2288f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2289f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2290f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2291f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2292f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 229341b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 22941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22954bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 22964bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 22970835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 22980835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 22991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23000835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 230163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Op, &Op+1); } 23020835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 23030835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 230449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 230549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 230649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 230749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 230849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2309bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2310bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2311906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2312bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2313bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2314bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2315bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2316906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 23171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2318906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2319906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2320906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2321906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2322bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2323bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 23240835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2325906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2326f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 23275baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2328f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 23295baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 233090045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2331087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2332f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2333f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2334f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2335f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2336f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2337f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 23385baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2339f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 23405baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2341f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2342f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2343f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2344f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 23455baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2346f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2347f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2348087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 234963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 23500835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 23510835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 235290045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 23531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 23541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 235549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 235649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 235749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 235849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 235949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 23601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 236149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 236249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 236349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 236449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 236549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 236649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 23675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 236849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 236949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 237049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 237149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 237249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2373906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2374906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 23750835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 23769d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 23779d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 23789d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 237949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 238049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2381f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2382f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2383f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2384f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 238549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2386db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2387f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2388f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2389db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 239049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 23919d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 23929d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 23939d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 23949d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 23959d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 239649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 239749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 23989d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 239949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 24001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24014bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 24024bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 240349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 240449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 240549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 240649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 24076eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 240849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 240949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 24106eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2411b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2412b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2413f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2414f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2415f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 241641b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2417f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 241841b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 241949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2420db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2421f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2422f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2423f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2424f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2425f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2426f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2427f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2428f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2429f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2430f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2431f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2432db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2433b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2434db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2435db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2436b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2437db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2438db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 243963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2440b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 24415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 24445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24456eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 24465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24483fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 24493fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 24503fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 24513fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 24523fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 24533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 24543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 24553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 24563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 24573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 24583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 24593fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 24603fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 24613fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 24623fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 24633fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 24643fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 24653fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 24665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 24675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 24685baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 24695baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 247017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 24710799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 24720799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 24730799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 247417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 24755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 24761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 24771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 247817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2479f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 248017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2481f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2482898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 2483bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2484bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2485bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 2486898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 24871237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 24881237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 24891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 24905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 24915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2493db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 24941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 24952de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2496db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 249717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2498db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2499db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 25000799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2501db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2502db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 25035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2504db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 25055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2506db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2507db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 250863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 25095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 25105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 25135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 25145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 25155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25160799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2517a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2518063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2519063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2520063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2521063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2522063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2523063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2524063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2525063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 25265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2527200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 25282de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 25292de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 25300799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 25312de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 25320799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2533aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 25342de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 25350799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2536f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 25372de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 25380799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2539f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 25402de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 25410799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 25421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25432de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 25440799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2545aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 25462de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 25470799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2548f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 25490e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isAssignmentOp(Opcode Opc) { 25500e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return Opc >= BO_Assign && Opc <= BO_OrAssign; 25510e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 25520e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); } 25530e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 25540e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isCompoundAssignmentOp(Opcode Opc) { 25552de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 25562de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 25570e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isCompoundAssignmentOp() const { 25580e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isCompoundAssignmentOp(getOpcode()); 25590e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 25600e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 25610e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isShiftAssignOp(Opcode Opc) { 25622de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 25632de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 25640e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isShiftAssignOp() const { 25650e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isShiftAssignOp(getOpcode()); 25660e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 25671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 25694bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 25704bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 25715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 25731237c673c07f9d827129ba02720108816abde562Ted Kremenek 25741237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 257563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 257663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 257763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 25781237c673c07f9d827129ba02720108816abde562Ted Kremenek 25795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 258017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2581f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 25822333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 2583f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 25842333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 2585bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2586bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2587bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 25882333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 25891237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 25901237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 25915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2592ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 25931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 25942de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 25955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 25985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 25995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 26005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 26015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 26025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 26035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2604ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2605ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 26065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2607f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 2608f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2609f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 261017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 2611f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, true), 2612ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2613ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 26141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 26155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 26165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2618ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2619ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2620ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2621ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2622ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2623ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2624ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2625ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2626ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2627ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2628ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2629ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2630ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 26315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 26321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 26331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 26345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 26365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 263756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// AbstractConditionalOperator - An abstract base class for 263856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator and BinaryConditionalOperator. 263956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass AbstractConditionalOperator : public Expr { 264056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation QuestionLoc, ColonLoc; 264156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 264256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 264356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallprotected: 264456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, QualType T, 264556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprValueKind VK, ExprObjectKind OK, 264656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool TD, bool VD, 264756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool ContainsUnexpandedParameterPack, 264856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, 264956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation cloc) 265056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, T, VK, OK, TD, VD, ContainsUnexpandedParameterPack), 265156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QuestionLoc(qloc), ColonLoc(cloc) {} 265256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 265356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, EmptyShell Empty) 265456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, Empty) { } 265556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 265656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 265756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getCond - Return the expression representing the condition for 265856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 265956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const; 266056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 266156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 266256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 266356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const; 266456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 266556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 266656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 266756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 266856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const; 266956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 267056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getQuestionLoc() const { return QuestionLoc; } 267156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getColonLoc() const { return ColonLoc; } 267256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 267356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 267456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == ConditionalOperatorClass || 267556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->getStmtClass() == BinaryConditionalOperatorClass; 267656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 267756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const AbstractConditionalOperator *) { return true; } 267856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 267956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 268056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator - The ?: ternary operator. The GNU "missing 268156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// middle" extension is a BinaryConditionalOperator. 268256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass ConditionalOperator : public AbstractConditionalOperator { 26831237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 26845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 268556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 268656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 26875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 268847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 268956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation CLoc, Expr *rhs, 26900943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 269156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, t, VK, OK, 2692898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2693898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2694898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 269556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (lhs->isTypeDependent() || rhs->isTypeDependent()), 269656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (cond->isValueDependent() || lhs->isValueDependent() || 269756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->isValueDependent()), 2698bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 269956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall lhs->containsUnexpandedParameterPack() || 270056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 270156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QLoc, CLoc) { 27021237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 27031237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 27041237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 27051237c673c07f9d827129ba02720108816abde562Ted Kremenek } 27065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2707ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2708ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 270956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, Empty) { } 2710ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2711395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 271256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 27135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2714395a2abf0028968d85958610e393e067885dc14fTed Kremenek 271556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 271656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 271756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { return cast<Expr>(SubExprs[LHS]); } 27181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 271956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 272056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 272156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 27225549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 2723f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 272456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 27255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 272647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 272763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 27285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 27295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 27325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 27341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27351237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 273663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 273763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 273863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 27395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 27405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 274156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// BinaryConditionalOperator - The GNU extension to the conditional 274256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operator which allows the middle operand to be omitted. 274356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// 274456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// This is a different expression kind on the assumption that almost 274556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// every client ends up needing to know that these are different. 274656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass BinaryConditionalOperator : public AbstractConditionalOperator { 274756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall enum { COMMON, COND, LHS, RHS, NUM_SUBEXPRS }; 274856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 274956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the common condition/left-hand-side expression, which will be 275056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated as the opaque value 275156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the condition, expressed in terms of the opaque value 275256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the left-hand-side, expressed in terms of the opaque value 275356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the right-hand-side 275456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Stmt *SubExprs[NUM_SUBEXPRS]; 275556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *OpaqueValue; 275656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 275756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 275856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 275956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall BinaryConditionalOperator(Expr *common, OpaqueValueExpr *opaqueValue, 276056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *cond, Expr *lhs, Expr *rhs, 276156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, SourceLocation cloc, 276256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 276356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, t, VK, OK, 276456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isTypeDependent() || rhs->isTypeDependent()), 276556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isValueDependent() || rhs->isValueDependent()), 276656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->containsUnexpandedParameterPack() || 276756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 276856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall qloc, cloc), 276956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue(opaqueValue) { 277056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COMMON] = common; 277156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COND] = cond; 277256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[LHS] = lhs; 277356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[RHS] = rhs; 277456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 277556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue->setSourceExpr(common); 277656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 277756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 277856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Build an empty conditional operator. 277956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit BinaryConditionalOperator(EmptyShell Empty) 278056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, Empty) { } 278156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 278256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCommon - Return the common expression, written to the 278356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// left of the condition. The opaque value will be bound to the 278456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// result of this expression. 278556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCommon() const { return cast<Expr>(SubExprs[COMMON]); } 278656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 278756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getOpaqueValue - Return the opaque value placeholder. 278856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *getOpaqueValue() const { return OpaqueValue; } 278956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 279056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCond - Return the condition expression; this is defined 279156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 279256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 279356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 279456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getTrueExpr - Return the subexpression which will be 279556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condition evaluates to true; this is defined 279656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 279756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { 279856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[LHS]); 279956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 280056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 280156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getFalseExpr - Return the subexpression which will be 280256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condnition evaluates to false; this is 280356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// defined in terms of the opaque value. 280456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const { 280556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[RHS]); 280656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 280756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 280856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 280956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return SourceRange(getCommon()->getLocStart(), getFalseExpr()->getLocEnd()); 281056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 281156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 281256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == BinaryConditionalOperatorClass; 281356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 281456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const BinaryConditionalOperator *) { return true; } 281556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 281656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // Iterators 281756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { 281856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return child_range(SubExprs, SubExprs + NUM_SUBEXPRS); 281956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 282056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 282156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 282256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getCond() const { 282356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 282456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getCond(); 282556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getCond(); 282656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 282756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 282856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getTrueExpr() const { 282956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 283056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getTrueExpr(); 283156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getTrueExpr(); 283256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 283356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 283456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getFalseExpr() const { 283556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 283656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getFalseExpr(); 283756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getFalseExpr(); 283856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 283956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 28406481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 28416481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 28425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 2843ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *Label; 28445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2845ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelDecl *L, 28466481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 2847bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false), 28482333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 28491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28507d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 28511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 28527d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 28537d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 28547d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 28557d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 28567d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 28577d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 28587d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 285963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 28605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 28615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2863ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *getLabel() const { return Label; } 2864ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void setLabel(LabelDecl *L) { Label = L; } 28657d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 28665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 28671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 28685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28696481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 28701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28711237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 287263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 28735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2874ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2875ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2876ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2877ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2878f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 2879f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 2880f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 2881ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 28825549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2883ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2884ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 28852333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2886d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2887d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 2888f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 2889bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor T->isDependentType(), false, false), 28902333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 28911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28926a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 28936a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 28946a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 28955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 28965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 28976a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 28986a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 289963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2900ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2901ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 29021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2903026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 29046a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2905026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 29066a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 29071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2908ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 29091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2910ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2911ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 29121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29131237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 291463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&SubStmt, &SubStmt+1); } 2915ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2916ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2917d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2918d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2919d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2920d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2921d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2922d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2923d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2924d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2925d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2926d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2927d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2928d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2929d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2930d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 29315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2932d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2933d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2934d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 2935a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 29361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 2937bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor SourceLocation RP); 293894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 293994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 29401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 294194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 294294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 294394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 294494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 29451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 294694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 294794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 294894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 294963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2950d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2951d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2952d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 29531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2954d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2955d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 29561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2957d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2958d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2959d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2960d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 29611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2962aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the array of expressions. 2963aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 2964aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 2965d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2966d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2967d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 29685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2969d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2970d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2971d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 29725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2973d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 29741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2975888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 297694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2977dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2978dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 29799a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2980d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 29811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2982d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 298363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 298463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+NumExprs); 298563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 2986d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2987d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2988d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 29891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2990d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 29917976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 29927976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 29937976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 29947976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 29957976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 29967976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2997d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 29981237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 29995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 3000d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 3001d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 3002f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 3003f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 3004ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 3005bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent, 3006bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 3007bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->containsUnexpandedParameterPack() || 3008bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 30091237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 30101237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 30111237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 30121237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 30131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 30147976932a1c256d447316ffac58e9821417725e34Eli Friedman 301544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 301644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 301744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 30187976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 30197976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 30204ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isConditionTrue(const ASTContext &C) const; 30217976932a1c256d447316ffac58e9821417725e34Eli Friedman 30227976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 30237976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 30244ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad Expr *getChosenSubExpr(const ASTContext &C) const { 30257976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 30267976932a1c256d447316ffac58e9821417725e34Eli Friedman } 30277976932a1c256d447316ffac58e9821417725e34Eli Friedman 30285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 302944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 30305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 303144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 30325549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 303344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 303444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 303544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 303644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 30371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 303844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 303944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 30401237c673c07f9d827129ba02720108816abde562Ted Kremenek 304163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3042d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 3043d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3044d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 30451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 3046d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3047d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 30481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30491237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 305063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 305163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 305263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3053d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 3054d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 30552d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 30562d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 30572d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 30582d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 30592d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 30602d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 30612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 30622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 30632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 30642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 30652d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 30661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 3067bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false), 3068f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 30692d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 307044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 307144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 307244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 30732d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 30742d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 307544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 30762d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 307763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 30782d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 30792d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 30802d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 30811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 30822d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 30832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 30841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 308663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 30872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 30882d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 308974626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 30907c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 30915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 30922cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 30937c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 30947c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 30952cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 30962cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 3097f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 3098bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor t->isDependentType(), false, 3099bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (TInfo->getType()->containsUnexpandedParameterPack() || 3100bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor e->containsUnexpandedParameterPack())), 31012cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 31027c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 31037c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 31041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 310574626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 3106d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 3107d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 31085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 31095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 3110d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 3111d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 31122cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 31132cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 31142cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 3115d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 3116d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 31171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3118d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 3119d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 3120d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 312163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 31227c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 31231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 31247c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 31257c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 31267c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 31277c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 31281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31297c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 313063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 31317c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 31321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 31344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 31354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 31364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 31374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 31384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 31394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 31404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 31414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 3142196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 31434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 31444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 31454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 31464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 31474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 31484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 31494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 31504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 3151196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 31524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 31534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 31544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 31554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 31564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 31574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 31584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 31593498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 31604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 31614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 31624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 3163196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 31644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 31654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 31664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 31674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 31684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 31694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 317066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 3171ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 3172709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 3173709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 317466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 31751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 31774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 31784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 31794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 31800bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 31810bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 31820bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 31830bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3184a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 3185a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 3186a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 3187a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 318866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 3189709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 3190709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 3191ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 3192d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3193d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 3194709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 3195709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 31961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3197ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 31981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3199aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the set of initializers. 3200aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getInits() { return reinterpret_cast<Expr **>(InitExprs.data()); } 3201aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 320216c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 3203c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 32044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 320566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 32061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 320716c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 3208c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 32094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 321066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 32111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 3213c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 32149e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 32159e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 3216c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 3217fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 3218709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 32191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 32214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 32224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 32234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 32244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 32254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 32264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 32274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 32284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 32294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 32304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 32314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 32324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 32334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 32344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 3235709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 3236c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 32370bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 32380bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 32390bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 32400bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 32410bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 32420bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 32430bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 32440bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 32450bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3246c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3247c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3248b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3249b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3250b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 32511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3252d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3253d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3254d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 325587fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 325687fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 32574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 32584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 32594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 32601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 32614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 32624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 32634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3264a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 32651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 3266d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 3267a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3268a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 326963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 3270c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 327166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 32721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 327366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 327466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 32751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 327666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 327763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 327863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall if (InitExprs.empty()) return child_range(); 327963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&InitExprs[0], &InitExprs[0] + InitExprs.size()); 328063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 32811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3282709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 32838111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3284709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 32858111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 32861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3287ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 32888111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3289ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 32908111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3291ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 32928111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3293ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 32948111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 329566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 329666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 329705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 329805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 329905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 330005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 330105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 330205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 330305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 33041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 330505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 330605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 330705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 330805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 330905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 331005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 331105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 331205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 331305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 331405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 331505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 331605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 331705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3318ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3319ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3320ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3321ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3322ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 332305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 332405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 332505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 332605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3327eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 332805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3329eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 333005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 333105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 333205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 333305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3334ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 3335ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 3336ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 3337ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 333805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 333905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 334005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 334105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 334205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3343ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3344319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3345ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3346eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 33479ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 33489ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 334905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3350d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3351d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3352d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 3353d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 335405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 335505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 335605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 335705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 335805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 335905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 336005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 336105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 336205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 336305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 33641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 336505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 336605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 33671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 336805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 336905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 337005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 337105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 337205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 337305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 337405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 337505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 337605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 337705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 337805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 337905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 338005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 338105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 338205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 33831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 338405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 338505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 338605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 338705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 338805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 338905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 339005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 339105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 339205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 339305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 339405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 339505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 339605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 339705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 339805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 339905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 340005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 340105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 340205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 340305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 340405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 340505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 340605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 340705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 340805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3409ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3410ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 341105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 34121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 34131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 341405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 341505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 341605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 341705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 341805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 341905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 342005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 34211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 342205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 342305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 342405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 342505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 342605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 342705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 342805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 342905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 343005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 34311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 343205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 343305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 343405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 343505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 343605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 343705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 343805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 343905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 344005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 344105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 344205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 344305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 344405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 344505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 344605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 344705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 344805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 344905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 345005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 345105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 345205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 345305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 345405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 345505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 345605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 345705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 345805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 345987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 346087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 346187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 346287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 346387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 346405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 346505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 346605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 346705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 346805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 346905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 347005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 347105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 347205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 347305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 347405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 347505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 347605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 347705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 347805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 347905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 348005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 348105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 348205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 348305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 348405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 348505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 34864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3487d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3488d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3489d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3490d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3491d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3492d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 34934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 34944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 34954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 34964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 34974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 34984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 349924f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceLocation getEndLocation() const { 350024f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return Kind == FieldDesignator ? getFieldLoc() : getRBracketLoc(); 350124f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 350224f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getSourceRange() const { 350324f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara return SourceRange(getStartLocation(), getEndLocation()); 350424f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara } 350505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 350605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 35071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 350805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 350905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 351005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3511eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 351205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3513d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3514d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 351505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 351605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 351705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 351805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 351905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3520ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 35211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 35221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3523ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 352405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3525cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 3526cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 3527cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 3528cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 3529cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3530cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 3531cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 3532cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3533cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 3534711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3535711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3536c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3537319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3538d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 353905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 354005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 354105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 354205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 354305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 354405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 354505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3546d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 354705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 354805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3549eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3550eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3551d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 355205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 355305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 35541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 355505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 355605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 355705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 355805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 355905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 356005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 356105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3562d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3563d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3564d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3565d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3566d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3567d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3568d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3569d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3570d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3571d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3572d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3573d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3574d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3575d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3576d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3577d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3578d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3579d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3580d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3581d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3582ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3583ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3584319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3585ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3586ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 358724f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara SourceRange getDesignatorsSourceRange() const; 358824f4674e697fb53587f0e8485e9c6592f7021ef2Abramo Bagnara 358963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 359005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 359105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 35921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 359305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 359405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 359505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 359605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 359763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 359863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = reinterpret_cast<Stmt**>(this + 1); 359963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumSubExprs); 360063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 36013498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 36023498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 36033498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 36043498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 36053498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 36061a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 36071a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 36083498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 36091a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 36101a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 36111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 36123498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 36131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 3614f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 3615bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false, false, false) { } 36163498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3617d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3618d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3619d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3620d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 36211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 36223498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 36233498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 36243498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 36253498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 362663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 36273498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 36283498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 36293498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 36303498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 363163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 363205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 363305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 36342ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 36352ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 36362ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 36372ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 36382ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 36392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 36402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 36411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 36422ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 36432ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 36442ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 364537bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 36461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36472ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 36481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 36502ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 36512ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 36522ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 36531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 36552ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 36562ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 36572ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 36582ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 365983ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 36601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36612ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 36622ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 36632ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 366463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 36652ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 36661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 36672ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 36681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 36692ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 36702ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 36711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36722ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 367363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 367463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&Exprs[0], &Exprs[0]+NumExprs); 367563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 367637bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 367760adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 36783397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 36792ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 36802ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 36811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3682f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// \brief Represents a C1X generic selection. 3683f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3684f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// A generic selection (C1X 6.5.1.1) contains an unevaluated controlling 3685f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression, followed by one or more generic associations. Each generic 3686f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association specifies a type name and an expression, or "default" and an 3687f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// expression (in which case it is known as a default generic association). 3688f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The type and value of the generic selection are identical to those of its 3689f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// result expression, which is defined as the expression in the generic 3690f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// association with a type name that is compatible with the type of the 3691f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// controlling expression, or the expression in the default generic association 3692f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// if no types are compatible. For example: 3693f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3694f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @code 3695f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// _Generic(X, double: 1, float: 2, default: 3) 3696f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// @endcode 3697f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3698f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// The above expression evaluates to 1 if 1.0 is substituted for X, 2 if 1.0f 3699f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// or 3 if "hello". 3700f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3701f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// As an extension, generic selections are allowed in C++, where the following 3702f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// additional semantics apply: 3703f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// 3704f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Any generic selection whose controlling expression is type-dependent or 3705f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which names a dependent type in its association list is result-dependent, 3706f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// which means that the choice of result expression is dependent. 3707f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne/// Result-dependent generic associations are both type- and value-dependent. 3708f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourneclass GenericSelectionExpr : public Expr { 3709f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne enum { CONTROLLING, END_EXPR }; 3710f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes; 3711f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Stmt **SubExprs; 3712f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, ResultIndex; 3713f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, DefaultLoc, RParenLoc; 3714f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3715f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbournepublic: 3716f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 3717f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 3718f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 3719f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 3720f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 3721f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack, 3722f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned ResultIndex); 3723f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3724f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// This constructor is used in the result-dependent case. 3725f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne GenericSelectionExpr(ASTContext &Context, 3726f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation GenericLoc, Expr *ControllingExpr, 3727f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo **AssocTypes, Expr **AssocExprs, 3728f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned NumAssocs, SourceLocation DefaultLoc, 3729f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation RParenLoc, 3730f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool ContainsUnexpandedParameterPack); 3731f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3732f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne explicit GenericSelectionExpr(EmptyShell Empty) 3733f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne : Expr(GenericSelectionExprClass, Empty) { } 3734f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3735f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getNumAssocs() const { return NumAssocs; } 3736f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3737f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getGenericLoc() const { return GenericLoc; } 3738f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getDefaultLoc() const { return DefaultLoc; } 3739f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceLocation getRParenLoc() const { return RParenLoc; } 3740f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3741f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getAssocExpr(unsigned i) const { 3742f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[END_EXPR+i]); 3743f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3744f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getAssocExpr(unsigned i) { return cast<Expr>(SubExprs[END_EXPR+i]); } 3745f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3746f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) const { 3747f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return AssocTypes[i]; 3748f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3749f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne TypeSourceInfo *getAssocTypeSourceInfo(unsigned i) { return AssocTypes[i]; } 3750f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3751f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne QualType getAssocType(unsigned i) const { 3752f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne if (const TypeSourceInfo *TS = getAssocTypeSourceInfo(i)) 3753f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return TS->getType(); 3754f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne else 3755f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return QualType(); 3756f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3757f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3758f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getControllingExpr() const { 3759f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return cast<Expr>(SubExprs[CONTROLLING]); 3760f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3761f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getControllingExpr() { return cast<Expr>(SubExprs[CONTROLLING]); } 3762f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3763f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// Whether this generic selection is result-dependent. 3764f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne bool isResultDependent() const { return ResultIndex == -1U; } 3765f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3766f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The zero-based index of the result expression's generic association in 3767f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// the generic selection's association list. Defined only if the 3768f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 3769f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne unsigned getResultIndex() const { 3770f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne assert(!isResultDependent() && "Generic selection is result-dependent"); 3771f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return ResultIndex; 3772f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3773f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3774f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// The generic selection's result expression. Defined only if the 3775f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne /// generic selection is not result-dependent. 3776f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne const Expr *getResultExpr() const { return getAssocExpr(getResultIndex()); } 3777f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne Expr *getResultExpr() { return getAssocExpr(getResultIndex()); } 3778f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3779f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne SourceRange getSourceRange() const { 3780f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return SourceRange(GenericLoc, RParenLoc); 3781f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3782f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const Stmt *T) { 3783f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return T->getStmtClass() == GenericSelectionExprClass; 3784f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3785f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne static bool classof(const GenericSelectionExpr *) { return true; } 3786f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3787f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne child_range children() { 3788f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne return child_range(SubExprs, SubExprs+END_EXPR+NumAssocs); 3789f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne } 3790f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 3791f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne friend class ASTStmtReader; 3792f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne}; 3793f111d935722ed488144600cea5ed03a6b5069e8fPeter Collingbourne 37944eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 37954eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 37964eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 37974eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3798a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3799a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3800a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3801a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3802a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 380373525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 380473525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 380573525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3806a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3807a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3808d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3809a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3810a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3811f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 3812f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 38130943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 38140943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 3815bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 3816bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 3817d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 38181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3819d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3820d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3821d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3822d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3823a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3824a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3825d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3826d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3827d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3828d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3829d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3830d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3831d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3832d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3833a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3834a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 38351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3836a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3837a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3838a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 38391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3840a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3841a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3842a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 38431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 384463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3845a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3846a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 38471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38482140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 38492140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 38502140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 38511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 38531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3854a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3855a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 38561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3857a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 385863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 3859a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3860a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3861a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 386256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 38639c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 38644eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 386556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 386656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 38674eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3868469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall BlockExpr(BlockDecl *BD, QualType ty) 3869f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 3870bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType(), false, false), 3871469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall TheBlock(BD) {} 38729c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 387384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 387484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 387584af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3876d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 387756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 387884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 387984af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 388056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 388156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 388256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 388356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 38849c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 388563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 388656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 38879c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 38889c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 388956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 389056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 389156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 38921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 38939c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 38944eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 38954eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 38961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38974eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 389863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 38994eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 39001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39016b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// BlockDeclRefExpr - A reference to a local variable declared in an 39026b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// enclosing scope. 39034eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 39046b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *D; 39054eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 39067d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 39077d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 39084eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 39096b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall BlockDeclRefExpr(VarDecl *d, QualType t, ExprValueKind VK, 39106b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall SourceLocation l, bool ByRef, bool constAdded = false); 391194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 391294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 391394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 391494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 391594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 39161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39176b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *getDecl() { return D; } 39186b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const VarDecl *getDecl() const { return D; } 39196b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall void setDecl(VarDecl *VD) { D = VD; } 392094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 392194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 392294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 392394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 392463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 39251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39264eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 392794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 39281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39297d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 39307d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 393189f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian 39321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 39331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 39344eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 39354eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 39361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39374eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 393863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 39394eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 39404eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 39415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 39425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 39435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3944