Expr.h revision f4e3cfbe8abd124be6341ef5d714819b4fbd9082
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, 1762514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 177e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 178e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 1807eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// Reasons why an expression might not be an l-value. 1817eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall LValueClassification ClassifyLValue(ASTContext &Ctx) const; 18253202857c60214d80950a975e6e52aebf30bd16aEli Friedman 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 18844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 18944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 19044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 19144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 196fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 198ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 2014f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 2025daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 203ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 20486f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 2052514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 206e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 207e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor MLV_ClassTemporary 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 20944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 21044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 2111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2122111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 2132111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 2142111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 2152111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 2172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 2182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 2192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 2202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 2212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 2222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 2232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 2242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 2252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_ClassTemporary, // A prvalue of class type 2262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 2272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 2292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 2302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 2312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 2322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 2332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 2342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 2352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NotBlockQualified, // Not captured in the closure 2362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 2372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 2382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 2392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 2402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 2432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 2442111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2452111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 2462111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 2472111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2482111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 2492111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 2502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 2512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 2542111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2552111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 2562111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 2572111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 2582111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 2592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2602111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 2612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 2622111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 2632111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 2642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 2652111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 2662c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor 2672c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor /// \brief Create a simple, modifiably lvalue 2682c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor static Classification makeSimpleLValue() { 2692c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor return Classification(CL_LValue, CM_Modifiable); 2702c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor } 2712c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor 2722111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 273369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Classify - Classify this expression according to the C++0x 2742111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 2752111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2762111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x defines ([basic.lval]) a new taxonomy of expressions to replace the 2772111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 2782111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 2792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 2802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 2812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 2822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 2832111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 2842111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 2852111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 2862111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 2872111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2882111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 289369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief ClassifyModifiable - Classify this expression according to the 2902111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x expression taxonomy, and see if it is valid on the left side 2912111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 2922111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2932111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 2942111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 2952111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 2962111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 2972111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 2982111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 2992111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3002111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 301f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKindForType - Given a formal return or parameter type, 302f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// give its value kind. 303f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static ExprValueKind getValueKindForType(QualType T) { 304f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall if (const ReferenceType *RT = T->getAs<ReferenceType>()) 3050943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall return (isa<LValueReferenceType>(RT) 3060943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue 3070943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : (RT->getPointeeType()->isFunctionType() 3080943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue : VK_XValue)); 309f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return VK_RValue; 310f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 311f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 312f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKind - The value kind that this expression produces. 313f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind getValueKind() const { 314f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprValueKind>(ExprBits.ValueKind); 315f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 316f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 317f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getObjectKind - The object kind that this expression produces. 318f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// Object kinds are meaningful only for expressions that yield an 319f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// l-value or x-value. 320f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprObjectKind getObjectKind() const { 321f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprObjectKind>(ExprBits.ObjectKind); 322f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 323f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 32456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool isOrdinaryOrBitFieldObject() const { 32556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprObjectKind OK = getObjectKind(); 32656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return (OK == OK_Ordinary || OK == OK_BitField); 32756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 32856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 329f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setValueKind - Set the value kind produced by this expression. 330f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setValueKind(ExprValueKind Cat) { ExprBits.ValueKind = Cat; } 331f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 332f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setObjectKind - Set the object kind produced by this expression. 333f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setObjectKind(ExprObjectKind Cat) { ExprBits.ObjectKind = Cat; } 334f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 3352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 3362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 3372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 3392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 34033bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 34133bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 34233bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 3435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 34438d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 34538d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 34638d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 3471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 348f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// \brief If this expression is an l-value for an Objective C 349f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// property, find the underlying property reference expression. 350f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const ObjCPropertyRefExpr *getObjCProperty() const; 351f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 352093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 353093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 354c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3552b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 3562b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 3572b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 3582b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 3592b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 360c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 3635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 365590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 366590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 368590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 3698070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 370590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 3715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 372c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 373c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 3744204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 3751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 37794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 3782d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 37994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 3801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 38294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 38394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 3841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 38694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 38794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 38894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 38994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 39094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 39194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 39294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 39394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 39494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 39594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 3961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 398e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 399e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // isGlobalLValue - Return true if the evaluated lvalue expression 400e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // is global. 401e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool isGlobalLValue() const; 402e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 403e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 404e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 405e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 406e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 40794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 40894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 4096ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 410019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 411019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 412019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 4134ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool Evaluate(EvalResult &Result, const ASTContext &Ctx) const; 4145b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 415cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 416cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 417cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// any crazy technique that we want to. 4184ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsBooleanCondition(bool &Result, const ASTContext &Ctx) const; 419cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 4206ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 42145b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 4224ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isEvaluatable(const ASTContext &Ctx) const; 423c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 4246ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 425138d6a6890c171068ac60430431eaadb3fcef9abGabor Greif /// which must be evaluated each time and must not be optimized away 4266ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 4276ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 4284ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool HasSideEffects(const ASTContext &Ctx) const; 429c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 43051fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 43151fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 4324ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad llvm::APSInt EvaluateAsInt(const ASTContext &Ctx) const; 43351fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 434b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 435b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 4364ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsLValue(EvalResult &Result, const ASTContext &Ctx) const; 4371b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 438e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue. 4394ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool EvaluateAsAnyLValue(EvalResult &Result, const ASTContext &Ctx) const; 440e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 44182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Enumeration used to describe the kind of Null pointer constant 44282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// returned from \c isNullPointerConstant(). 44382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth enum NullPointerConstantKind { 44482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is not a Null pointer constant. 44582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_NotNull = 0, 44682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 44782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a Null pointer constant built from a zero integer. 44882214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_ZeroInteger, 44982214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 45082214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a C++0X nullptr. 45182214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_CXX0X_nullptr, 45282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 45382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// \brief Expression is a GNU-style __null constant. 45482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NPCK_GNUNull 45582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth }; 45682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth 457ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 458ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 459ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 460ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 461ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 462c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 463ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 464ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 465ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 466c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 467ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 468ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 469ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 470ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 471c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 47282214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to 47382214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// a Null pointer constant. The return value can further distinguish the 47482214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth /// kind of NULL pointer constant that was detected. 47582214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantKind isNullPointerConstant( 47682214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth ASTContext &Ctx, 47782214a80c0163e01e4d8dec1426023c89277dbb4Chandler Carruth NullPointerConstantValueDependence NPC) const; 478efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 47944baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 4801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 481102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 4821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 48311ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 48411ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 48511ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 486369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Result type of CanThrow(). 487369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl enum CanThrowResult { 488369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Cannot, 489369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Dependent, 490369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Can 491369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl }; 492369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Test if this expression, if evaluated, might throw, according to 493369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// the rules of C++ [expr.unary.noexcept]. 494369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CanThrowResult CanThrow(ASTContext &C) const; 495369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl 4964e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 4971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 4984e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 4994e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 5002b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 50156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 50256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 50327c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 50456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 5051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5062fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 5072fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 5082fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 5092fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 5104d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const Expr *IgnoreParenImpCasts() const { 5114d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 5124d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 513f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 514f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 515f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 516f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall Expr *IgnoreParenLValueCasts(); 517f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 518f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const Expr *IgnoreParenLValueCasts() const { 519f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 520f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 5214d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 522ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 523ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 524ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 525ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 5261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5276eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 5286eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 5296eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 530c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 5316eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 5326eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 5336eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 5346eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 535c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 536558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 537558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 538558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 5392f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 54075e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Whether this expression is an implicit reference to 'this' in C++. 54175e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitCXXThis() const; 54275e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor 5432b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 5444e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 5454e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 54656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 54756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 54856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 549ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 550ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 551ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 5521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 553898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 554898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 555898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 5561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 5575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 5581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 5595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 5665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 5675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 56856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 56956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// fixed type and value class. These don't correspond to concrete 57056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// syntax; instead they're used to express operations (usually copy 57156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operations) on values whose source is generally obvious from 57256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// context. 57356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass OpaqueValueExpr : public Expr { 57456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 57556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *SourceExpr; 57656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation Loc; 57756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 57856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 57956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK, 58056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprObjectKind OK = OK_Ordinary) 58156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 58256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->isDependentType(), T->isDependentType(), false), 58356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceExpr(0), Loc(Loc) { 58456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 58556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 58656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Given an expression which invokes a copy constructor --- i.e. a 58756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// CXXConstructExpr, possibly wrapped in an ExprWithCleanups --- 58856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// find the OpaqueValueExpr that's the source of the construction. 58956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static const OpaqueValueExpr *findInCopyConstruct(const Expr *expr); 59056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 59156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit OpaqueValueExpr(EmptyShell Empty) 59256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(OpaqueValueExprClass, Empty) { } 59356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 59456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Retrieve the location of this expression. 59556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getLocation() const { return Loc; } 59656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 59756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 59856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getSourceRange(); 59956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 60056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 60156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getExprLoc() const { 60256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (SourceExpr) return SourceExpr->getExprLoc(); 60356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return Loc; 60456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 60556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 60656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { return child_range(); } 60756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 60856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression of an opaque value expression is the 60956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which originally generated the value. This is 61056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// provided as a convenience for analyses that don't wish to 61156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// precisely model the execution behavior of the program. 61256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 61356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// The source expression is typically set when building the 61456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// expression which binds the opaque value expression in the first 61556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// place. 61656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getSourceExpr() const { return SourceExpr; } 61756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall void setSourceExpr(Expr *e) { SourceExpr = e; } 61856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 61956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 62056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == OpaqueValueExprClass; 62156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 62256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const OpaqueValueExpr *) { return true; } 62356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 62456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 625a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 626a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 627a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 62840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// \brief The nested-name-specifier that qualifies the name, including 62940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// source-location information. 63040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc; 631a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 632a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 633a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 634a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 635a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 636a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 637a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 638c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 639a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 640a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 641c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 642a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 643a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 644a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 645a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 646c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 647a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 648833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 649833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 650a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 651c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 652a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 653833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 654833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 655a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 656d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 657d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 658bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void initializeFrom(const TemplateArgumentListInfo &List, 659bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor bool &Dependent, bool &ContainsUnexpandedParameterPack); 660d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 6618dfbd8b252ba4e6cf4b7a3422f6ef0ca21312dfeArgyrios Kyrtzidis static std::size_t sizeFor(unsigned NumTemplateArgs); 662d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 663a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 664c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 6655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 668a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 669c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 670a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 671a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 672c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 673a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 674a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 675a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 676c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 677c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 678a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 679c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 680a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 681dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 6822577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 683a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 6845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 6859e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 6862577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// DNLoc - Provides source/type location info for the 6872577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in DecoratedD. 6882577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 6892577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 690a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 691a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 6922cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 693a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 694c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 695a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 696a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 697c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 698a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 699a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 700a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 701a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 702096832c5ed5b9106fa177ebc148489760c3bc496John McCall 70340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor DeclRefExpr(NestedNameSpecifierLoc QualifierLoc, 704dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 705d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 706f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 707663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 70840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor DeclRefExpr(NestedNameSpecifierLoc QualifierLoc, 7092577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 7102577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 711f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 7122577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 713663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 714663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 715663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 716c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 7170da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 7180da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 7190da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 7209e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 722f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, ExprValueKind VK, SourceLocation l) : 723bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor Expr(DeclRefExprClass, t, VK, OK_Ordinary, false, false, false), 724f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DecoratedD(d, 0), Loc(l) { 7250da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 7260da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 7271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 728a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 72940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 730dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 731a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 732f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 7330da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 734663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 7352577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 73640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 7372577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 7382577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 739f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 7402577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 7412577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 742663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 743663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 744def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor bool HasQualifier, 745def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor bool HasExplicitTemplateArgs, 746def0354384d9c4431f7b58b664b59896d4623028Douglas Gregor unsigned NumTemplateArgs); 747c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 748dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 749dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 750dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 751904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 7522577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 7532577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 7542577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 7552577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 7569e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 7570b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 75863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 7591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 760a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 761a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 762a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 763c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 764c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 765a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 766a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 767a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 768a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 769c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 77040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getNameQualifier()->QualifierLoc.getNestedNameSpecifier(); 771a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 77240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 77340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// \brief If the name was qualified, retrieves the nested-name-specifier 77440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// that precedes the name, with source-location information. 77540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 77640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 77740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 77840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 77940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getNameQualifier()->QualifierLoc; 78040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 78140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 782096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 783096832c5ed5b9106fa177ebc148489760c3bc496John McCall return (DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag); 784096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 785096832c5ed5b9106fa177ebc148489760c3bc496John McCall 786096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 787096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 788096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 789096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(hasExplicitTemplateArgs()); 790096832c5ed5b9106fa177ebc148489760c3bc496John McCall 791096832c5ed5b9106fa177ebc148489760c3bc496John McCall if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 792096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 793096832c5ed5b9106fa177ebc148489760c3bc496John McCall 794096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 795096832c5ed5b9106fa177ebc148489760c3bc496John McCall getNameQualifier() + 1); 796096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 797096832c5ed5b9106fa177ebc148489760c3bc496John McCall 798096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 799096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 800096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 801096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 802a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 803d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 804096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 805096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 806096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 807096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getExplicitTemplateArgsOpt() const { 808096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 809096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 810096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 811096832c5ed5b9106fa177ebc148489760c3bc496John McCall 812d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 813d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 814d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 815096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 816096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 817d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 818c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 819a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 820a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 821a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 822096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 823a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 824c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 825096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 826a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 827c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 828a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 829a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 830833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 831096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 832a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 833c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 834096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 835a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 836c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 837a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 838a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 839a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 840096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 841a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 842c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 843096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 844a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 845c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 846a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 847a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 848a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 849096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 850a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 851c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 852096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 853a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 854c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 8551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 85699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 8591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 86077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 86163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 862663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 86360adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 8643397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 867d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 868d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 869227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 870227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 871227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 872227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 873848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 874848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 875848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 876848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 877227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 8781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 879227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 880227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 881227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 882227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 8831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 884f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 885bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor type->isDependentType(), type->isDependentType(), 886bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 887f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 8881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 88917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 8901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 89117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 89217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 893227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 89417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 89517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 89617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 89717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 89817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 899848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 9003a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 90163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 902227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 9031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 905227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 906d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 9071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 90877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 90963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 910227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 911227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 9129996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 9139996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 9149996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 9159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 9169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 9179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 9189996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 9199996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 9209996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 9219996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned BitWidth; 9229996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 9239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 9249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 9259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 9269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 9289996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9299996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 9309996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 9319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 9339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage() : BitWidth(0), VAL(0) { } 9349996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9359996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 9369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 9379996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 9389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 9399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 9409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 9419996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 9429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 9439996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 9449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APIntStorage : public APNumericStorage { 9469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 9479996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return getIntValue(); } 9489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 9499996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 9509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APFloatStorage : public APNumericStorage { 9529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 9539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return llvm::APFloat(getIntValue()); } 9549996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 9559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 9569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 9579996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 9589996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 9609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APIntStorage Num; 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 9629996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 9649996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 9659996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 9669996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 9709996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral(ASTContext &C, const llvm::APInt &V, 9719996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l) 972bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(IntegerLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 973bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 974f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l) { 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 9769996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 978a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 9799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 9809996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // or UnsignedLongLongTy 9819996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 9829996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 9839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 9840b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return Num.getValue(); } 98663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 9875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 988313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 989313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 990313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 9919996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { Num.setValue(C, Val); } 9920b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 9930b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 9981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 99977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 100063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 1006c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 1009c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 1010bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 1011bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 1012f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Value(value), Loc(l), IsWide(iswide) { 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10140b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 10150b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 10160b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 10170b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1018018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 1019c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 10201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 102163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 10221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10250b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 10260b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 10270b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 10280b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 10291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 103377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 103477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 103563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 10399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APFloatStorage Num; 1040720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 10429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10439996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 1044720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 1045bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(FloatingLiteralClass, Type, VK_RValue, OK_Ordinary, false, false, 1046bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 10479996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IsExact(isexact), Loc(L) { 10489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 10499996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 10505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 105117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 10521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 10539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(FloatingLiteralClass, Empty), IsExact(false) { } 105417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 10559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 10569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 10579996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 10589996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 10599996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 10609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return Num.getValue(); } 10619996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 10629996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis Num.setValue(C, Val); 10639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 106417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 1065720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 106617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 1067c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 1068da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 1069da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 1070da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 1071da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 10721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 107317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 107417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 107517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 107663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 10821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 108377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 108463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10875d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 10885d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 10895d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 10905d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 10915d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 10925d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 10935549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 10945d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 10955d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 1096bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false, 1097bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 1098f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 10991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1100cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 11011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 1102cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 1103cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 11045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 11055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1106cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1107cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 110863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return Val->getSourceRange(); } 11091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 11115d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 11125d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 11131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11145d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 111563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 11165d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 11175d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1118e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1119e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 1120e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1121a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1122c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1123c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1124690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1125690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 11268bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1127690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1128c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1129c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1130c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1131c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1132c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1133c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 1138726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 1139726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 11402085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1141f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1142bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false, false) {} 11431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11452085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 11462085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 11472085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 11482085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 1149a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 11502085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 11512085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 11521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 11532085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 11542085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 11552085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 11562085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1157a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1158673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1159673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1160673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1161b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 1162b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 1163b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 11642f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 1166673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1167673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 1168b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 1169673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 1171673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 1172673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 11738d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1174b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 1175b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1176b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 117733fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 117833fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 117933fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1180726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1181726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1182726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 11831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1184726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1185726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1186726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1187726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 11881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1189673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1190673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1191673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 119208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner 119308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 119408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 119508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 119608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 119708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 119808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 119908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 120008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 120108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 120208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1203673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1204b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1205b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1206b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 120863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 12091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 12151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 121677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 121763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 12215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 12235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 12245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 12255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1227898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1228f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 1229bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->isTypeDependent(), val->isValueDependent(), 1230bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->containsUnexpandedParameterPack()), 1231898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 12321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1233c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 12341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1235c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1236c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 12375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 12385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1239c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1240c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 124163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(L, R); } 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1243313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1244313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1245c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1246313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1247313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1248313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1249c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1250313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 12511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 12551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 125677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 125763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 12585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12610518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 12620518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 12635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1264dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1265dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1266dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1267dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1268dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1269dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1270dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 12715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 12725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12735baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 12745baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 12760799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 12775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12780799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 12791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1281f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1282f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1283f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1284de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 1285bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->isValueDependent(), 1286bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->containsUnexpandedParameterPack()), 12870799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12890b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 12901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 12912de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 12920b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12930799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 12940b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 12950b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 12970b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 12980b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 13010b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 13020b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 13042085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 13052de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 13062085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1308cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 13092085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 13102de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 13112085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 13125a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 13130799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 13140799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 13152de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 1316993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc == UO_PreInc || Opc == UO_PostInc; 13172de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 13182de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 1319993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc <= UO_PreDec; 13202de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 13212de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 13222de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 13232de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 13240799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 13251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 13275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 13285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 13295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1330bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1331bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1332bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1333bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1334bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1335bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1336bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1337bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 133863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 13395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 13405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 13415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 13425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 13435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 134463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return Loc; } 13451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 13471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 13485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 13501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 135177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 135263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 13535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 13568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 13578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 13588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 13598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1360c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// double d; 13618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 13628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 13638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 13648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 13658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 13668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1367c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 13688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 13708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 13718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 13728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 13738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 13748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 13758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1376cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 13778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1378cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 13798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1380cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1381cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1382cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1383cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1384cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 13858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 13868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 13888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1389c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 13918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1392c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 13948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1395c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - An unsigned index into the array of Expr*'s stored after this node 13968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 13978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 13988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 13998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1400c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - A CXXBaseSpecifier*, for references that look at a field in a 1401cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 14028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1403c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 14058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1406c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 14078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 14088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1409c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1411c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 14128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1413c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 14148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1415c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 14178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 14188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1419c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 14208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1421cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1422cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1423cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1424cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1425c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1427c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt Kind getKind() const { 14288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 14298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1430c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 14328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 14338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 14348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 14358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 14368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 14398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 14408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1441cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 14428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1443c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 14458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 14468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1447c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1448cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1449cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1450cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1451c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1452cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1453c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 14558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 14568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 14578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1458c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// contains the location of the period (if there is one) and the 14598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 14608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange getRange() const { return Range; } 14618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 14628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1464c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 14668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 14678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 14688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 14698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 14708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 14718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1472c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1473c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfExpr(ASTContext &C, QualType type, 14748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1475c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 14768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 14778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 14788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 14808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1481c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 14828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1484c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1485c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *Create(ASTContext &C, QualType type, 1486c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1487c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 14888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 14898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 14908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1491c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *CreateEmpty(ASTContext &C, 14928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 14938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 14958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 14968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 14978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 14998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 15008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1501c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 15038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 15048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 15068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 15078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1508c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor const OffsetOfNode &getComponent(unsigned Idx) { 15108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 15118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<OffsetOfNode *> (this + 1)[Idx]; 15128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 15158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 15168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 15178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1518c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 15208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 15218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 15248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 15258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 15268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 15278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 15308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 15318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 15328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 15338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1534c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 15358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 15368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 15378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 153963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 15408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 15418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 15448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 15458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 15468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 15488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 15498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 155063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 155163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = 155263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall reinterpret_cast<Stmt**>(reinterpret_cast<OffsetOfNode*>(this + 1) 155363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall + NumComps); 155463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumExprs); 155563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 15568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 15578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1558f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// UnaryExprOrTypeTraitExpr - expression with either a type or (unevaluated) 1559f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// expression operand. Used for sizeof/alignof (C99 6.5.3.4) and 1560f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne/// vec_step (OpenCL 1.1 6.11.12). 1561f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourneclass UnaryExprOrTypeTraitExpr : public Expr { 1562f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne unsigned Kind : 2; 15630518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1564d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1565a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1566d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1567d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 15685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 156942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 15705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1571f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, TypeSourceInfo *TInfo, 1572f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1573f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1574f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1575ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 15762850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1577bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->isDependentType(), 1578bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->containsUnexpandedParameterPack()), 1579f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Kind(ExprKind), isType(true), OpLoc(op), RParenLoc(rp) { 1580a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1581ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1582ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 1583f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr(UnaryExprOrTypeTrait ExprKind, Expr *E, 1584f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne QualType resultType, SourceLocation op, 1585f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation rp) : 1586f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary, 1587ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1588ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1589bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->isTypeDependent(), 1590bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->containsUnexpandedParameterPack()), 1591f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Kind(ExprKind), isType(false), OpLoc(op), RParenLoc(rp) { 1592ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1593d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 15940518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 15950b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 1596f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne explicit UnaryExprOrTypeTraitExpr(EmptyShell Empty) 1597f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne : Expr(UnaryExprOrTypeTraitExprClass, Empty) { } 15980b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 1599f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTrait getKind() const { 1600f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return static_cast<UnaryExprOrTypeTrait>(Kind); 1601f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne } 1602f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne void setKind(UnaryExprOrTypeTrait K) { Kind = K; } 16030b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16040518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 16050518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 16065ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 16075ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1608a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 16090518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 16105ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 16110518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1612caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 16130518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1614d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 16150518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1616caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1617f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return const_cast<UnaryExprOrTypeTraitExpr*>(this)->getArgumentExpr(); 1618caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 16190b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16200b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1621a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1622a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 16231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 16240b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 16250b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16260518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 16270518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 16280518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 16290518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 16300518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 16310518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 163276e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 16330b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 16340b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 16350b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 16360b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1637866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 163863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 1639866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1640866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 1643f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne return T->getStmtClass() == UnaryExprOrTypeTraitExprClass; 16445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1645f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne static bool classof(const UnaryExprOrTypeTraitExpr *) { return true; } 16461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 164777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 164863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children(); 16495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 16525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 16535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 16545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 165777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 16581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16612324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 1662f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 166373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 1664f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 16652850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 1666bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 1667bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 1668bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 16692850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 167073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 167173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 167273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 16731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1674cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1675cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1676cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1677cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16782324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 16792324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 16802324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 16812324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 16822324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 168333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 168433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 168533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 168633fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 16875549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 16885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1689cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1690cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 16925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1693cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 16941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 16965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 169777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 16981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 17005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 17012324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 17021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 17045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 17052324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 17061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 170777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 17085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 17091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 17101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 171163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 171277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 17135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1715026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1716cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1717cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 171863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 17195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 17225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 17241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 172577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 172663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 172763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 172863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 17295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1732b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 17331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1734b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 17351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1736b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1737b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 17385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 1739cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne enum { FN=0, PREARGS_START=1 }; 17405549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 17415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 17425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 17431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1744b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1745cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne // These versions of the constructor are for derived classes. 1746cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext& C, StmtClass SC, Expr *fn, unsigned NumPreArgs, 1747cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **args, unsigned numargs, QualType t, ExprValueKind VK, 1748cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SourceLocation rparenloc); 1749cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne CallExpr(ASTContext &C, StmtClass SC, unsigned NumPreArgs, EmptyShell Empty); 1750cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 1751cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Stmt *getPreArg(unsigned i) { 1752cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1753cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 1754cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1755cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const Stmt *getPreArg(unsigned i) const { 1756cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1757cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs[PREARGS_START+i]; 1758cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1759cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne void setPreArg(unsigned i, Stmt *PreArg) { 1760cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne assert(i < getNumPreArgs() && "Prearg access out of range!"); 1761cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[PREARGS_START+i] = PreArg; 1762cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1763cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne 1764cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne unsigned getNumPreArgs() const { return CallExprBits.NumPreArgs; } 176542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 17665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 1768f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 17691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17701f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1771ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 17721f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 17735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 17745549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 177518b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1776a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1777d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 1778d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 1779d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 1780d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 1781d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 1782a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1783a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1784bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1785bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1786bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1787a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 17885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 17895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 17905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 17911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1792aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the call arguments. 1793cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne Expr **getArgs() { 1794cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return reinterpret_cast<Expr **>(SubExprs+getNumPreArgs()+PREARGS_START); 1795cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1796aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 17975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 17985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 17995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 1800cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 18015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 18035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 1804cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return cast<Expr>(SubExprs[Arg+getNumPreArgs()+PREARGS_START]); 18055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1807934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1808934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1809934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1810cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne SubExprs[Arg+getNumPreArgs()+PREARGS_START] = ArgExpr; 1811934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 18121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1813d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1814d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1815d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 18168189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 18171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 18195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 18201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1821cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_begin() { return SubExprs+PREARGS_START+getNumPreArgs(); } 1822cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne arg_iterator arg_end() { 1823cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 1824cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1825cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_begin() const { 1826cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs(); 1827cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 1828cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne const_arg_iterator arg_end() const { 1829cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne return SubExprs+PREARGS_START+getNumPreArgs()+getNumArgs(); 1830cc324ad80ab940efca006b0064f7ca70a6181816Peter Collingbourne } 18311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 18335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 18345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 18355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1836cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1837cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 18384ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad unsigned isBuiltinCall(const ASTContext &Context) const; 18391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 18411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 18426dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 18436dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 18441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1845d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 18461f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1847866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 18482882eca5a184c78f793188083f6ce539740a5cf2John McCall SourceRange getSourceRange() const; 18491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 18514bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 18524bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 18535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 185588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 185677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 185763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 185863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], 185963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall &SubExprs[0]+NumArgs+getNumPreArgs()+PREARGS_START); 186063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 18615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 18625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1863ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 18645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 18655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 18666bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 18676bb8017bb9e828d118e15e59d71c66bba323c364John McCall struct MemberNameQualifier : public NameQualifier { 1868161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 18696bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 18706bb8017bb9e828d118e15e59d71c66bba323c364John McCall 1871ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1872ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 18735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 18741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1875ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1876ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1877f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 18781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1879ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 18805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 18811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18822577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 18832577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 18842577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 18852577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 1886ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 188783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 18881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 188983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 18906bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 18916bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 1892c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 18936bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 18941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1895c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1896c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1897c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1898c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 18996bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 1900c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 19011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 190283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 19036bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 19046bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 19056bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 190683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 190783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 190883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 19096bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 1910c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1911c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1914f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1915f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 1916f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1917f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1918bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 1919bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 19202577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 19212577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 19222577743c5650c646fb705df01403707e94f2df04Abramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) { 19232577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 19242577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 19252577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 19262577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 19272577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 19282577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 19292577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // for constructors, destructors and conversion oeprators). 19302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1931f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 1932f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1933f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1934bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 1935bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 19362577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 19372577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 19386bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1939510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 19401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 194140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc, 1942161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 19432577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 1944d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1945f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 19461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 194788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 19485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 194957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 195057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 195157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 195257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 195357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1954f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1955f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 19561f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 19576bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1958161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 19596bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1960161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1961161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 19626bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 19636bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 19646bb8017bb9e828d118e15e59d71c66bba323c364John McCall 19651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 19660979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 19670979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 19686bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 19691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 197183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 197283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 19731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 19746bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 197583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 19761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 197740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc.getNestedNameSpecifier(); 197840d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor } 197940d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 198040d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// \brief If the member name was qualified, retrieves the 198140d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// nested-name-specifier that precedes the member name, with source-location 198240d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor /// information. 198340d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor NestedNameSpecifierLoc getQualifierLoc() const { 198440d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor if (!hasQualifier()) 198540d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return NestedNameSpecifierLoc(); 198640d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor 198740d96a69c0e1e8c10f92d450c305a7aae696ca9cDouglas Gregor return getMemberQualifier()->QualifierLoc; 198883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1989c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1990c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1991c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1992096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 19931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1994c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1996d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1997d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1998d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1999096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 2000096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 2001096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2002096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2003096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2004096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 2005096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 2006096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 2007096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(HasExplicitTemplateArgumentList); 2008096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!HasQualifierOrFoundDecl) 2009096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 2010096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2011096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 2012096832c5ed5b9106fa177ebc148489760c3bc496John McCall getMemberQualifier() + 1); 2013096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2014096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2015096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 2016096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 2017096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 2018096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 2019096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 2020096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 2021096832c5ed5b9106fa177ebc148489760c3bc496John McCall 2022096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 2023096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 2024096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 2025096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getOptionalExplicitTemplateArgs() const { 2026096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 2027096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 2028d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 2029c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 20301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 2031c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 20321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 2033c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 2034c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 20351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2036096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 2037c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2039c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 2040c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 2041833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 2042c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 20431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 20441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2045096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 2046c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2048c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 2049c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 20501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 2051c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 20521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 20531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2054096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 2055c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 2058c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 20591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 2060c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 2061c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 20621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2063096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 2064c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 20651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20662577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 20672577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 20682577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 20692577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 20702577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 20712577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 20725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 20731f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 20741f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 2075ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 2076ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 2077026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 20781f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 20795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 208075e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor SourceRange getSourceRange() const; 208175e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor 208263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceLocation getExprLoc() const { return MemberLoc; } 20835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 208475e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor /// \brief Determine whether the base of this explicit is implicit. 208575e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor bool isImplicitAccess() const { 208675e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor return getBase() && getBase()->isImplicitCXXThis(); 208775e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor } 208875e85048e73fcde2ce9d8a48dfdb1220e132eb59Douglas Gregor 20891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 209083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 20915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 20931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20941237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 209563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 20964045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 20974045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 20984045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 20995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 21005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 2102aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 2103aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 21040fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 21050fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 21060fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 21070fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 21081d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 21091d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 21101d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 211142f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 21125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 2113e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 2114aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 211542f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 2116f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 2117f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 2118bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor tinfo->getType()->isDependentType(), 2119bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->isValueDependent(), 2120bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->containsUnexpandedParameterPack()), 212142f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 21221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2123ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 2124ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 2125ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 2126ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 21275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 21285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 2129ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 2130e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 2131e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 2132ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 2133ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 21340fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 2135ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2136ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 213742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 213842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 213942f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 214063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 21410fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 21420fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 21430fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 21440fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 214573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 21460fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 214773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2148aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 21491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2151aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 2152aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 21531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21541237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 215563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Init, &Init+1); } 2156aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2157aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 215849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 215949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 216049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 216149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 21620835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2163cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 21645baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 21651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2166cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 21670835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2168409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2169daa8e4e888758d55a7a759dd4a91b83921cef222John McCall void CheckCastConsistency() const { 2170409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 2171409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 21725cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 2173cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 2174cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 2175409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 2176409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 2177f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(!path_empty() && "Cast kind should have a base path!"); 2178f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 2179409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2180409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 2181409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 2182409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 2183409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 2184409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 2185409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 2186409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 2187404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall case CK_NullToPointer: 2188409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 2189409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 2190409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 2191409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 2192409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 2193409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 2194409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 2195409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 2196409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 2197409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 2198409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 2199569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor case CK_ObjCObjectLValueCast: 22002bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingRealToComplex: 2201f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToReal: 22022bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingComplexCast: 2203f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToIntegralComplex: 22042bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralRealToComplex: 2205f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToReal: 22062bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralComplexCast: 2207f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToFloatingComplex: 2208daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(!getType()->isBooleanType() && "unheralded conversion to bool"); 2209daa8e4e888758d55a7a759dd4a91b83921cef222John McCall // fallthrough to check for null base path 2210daa8e4e888758d55a7a759dd4a91b83921cef222John McCall 2211daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_Dependent: 22120ae287a498b8cec2086fe6b7e753cbb3df63e74aJohn McCall case CK_LValueToRValue: 2213f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall case CK_GetObjCProperty: 2214daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_NoOp: 2215daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_PointerToBoolean: 2216daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralToBoolean: 2217daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingToBoolean: 2218daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_MemberPointerToBoolean: 2219daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingComplexToBoolean: 2220daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralComplexToBoolean: 22215082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_LValueBitCast: // -> bool& 22225082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_UserDefinedConversion: // operator bool() 2223f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(path_empty() && "Cast kind should not have a base path!"); 2224409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 2225409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2226409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 2227409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2228409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2229f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2230f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2231f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2232f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2233f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 22340835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2235f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2236f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2237f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2238898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2239898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2240898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2241898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2242898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 2243bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType() || (op && op->isValueDependent()), 2244bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (ty->containsUnexpandedParameterPack() || 2245bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor op->containsUnexpandedParameterPack())), 22468e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2247daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 22488e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 22498e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 2250daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 2251f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 22521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2253087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2254f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 22558e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 22568e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 22578e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 22581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22590835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 22608e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 22618e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2262f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2263f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 22640835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 22650835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2266087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2267087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 22686eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 22696eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 22706eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 22716eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 22726eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 22736eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 22746eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 227541b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2276f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2277f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 22788e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 22798e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2280f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2281f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2282f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2283f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2284f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2285f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 228641b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 22871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22884bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 22894bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 22900835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 22910835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 22921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22930835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 229463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Op, &Op+1); } 22950835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 22960835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 229749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 229849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 229949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 230049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 230149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2302bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2303bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2304906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2305bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2306bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2307bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2308bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2309906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 23101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2311906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2312906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2313906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2314906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2315bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2316bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 23170835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2318906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2319f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 23205baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2321f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 23225baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 232390045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2324087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2325f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2326f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2327f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2328f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2329f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2330f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 23315baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2332f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 23335baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2334f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2335f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2336f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2337f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 23385baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2339f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2340f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2341087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 234263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 23430835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 23440835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 234590045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 23461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 23471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 234849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 234949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 235049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 235149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 235249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 23531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 235449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 235549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 235649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 235749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 235849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 235949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 23605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 236149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 236249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 236349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 236449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 236549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2366906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2367906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 23680835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 23699d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 23709d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 23719d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 237249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 237349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2374f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2375f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2376f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2377f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 237849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2379db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2380f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2381f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2382db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 238349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 23849d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 23859d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 23869d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 23879d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 23889d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 238949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 239049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 23919d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 239249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 23931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 23944bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 23954bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 239649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 239749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 239849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 239949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 24006eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 240149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 240249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 24036eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2404b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2405b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2406f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2407f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2408f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 240941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2410f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 241141b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 241249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2413db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2414f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2415f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2416f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2417f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2418f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2419f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2420f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2421f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2422f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2423f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2424f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2425db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2426b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2427db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2428db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2429b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2430db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2431db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 243263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2433b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 24345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 24375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24386eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 24395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24413fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 24423fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 24433fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 24443fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 24453fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 24463fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 24473fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 24483fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 24493fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 24503fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 24513fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 24523fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 24533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 24543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 24553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 24563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 24573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 24583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 24595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 24605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 24615baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 24625baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 246317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 24640799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 24650799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 24660799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 246717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 24685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 24691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 24701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 247117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2472f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 247317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2474f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2475898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 2476bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2477bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2478bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 2479898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 24801237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 24811237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 24821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 24835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 24845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2486db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 24871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 24882de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2489db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 249017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2491db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2492db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 24930799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2494db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2495db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 24965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2497db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 24985549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2499db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2500db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 250163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 25025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 25035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 25065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 25075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 25085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25090799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2510a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2511063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2512063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2513063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2514063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2515063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2516063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2517063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2518063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 25195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2520200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 25212de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 25222de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 25230799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 25242de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 25250799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2526aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 25272de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 25280799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2529f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 25302de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 25310799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2532f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 25332de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 25340799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 25351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25362de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 25370799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2538aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 25392de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 25400799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2541f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 25420e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isAssignmentOp(Opcode Opc) { 25430e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return Opc >= BO_Assign && Opc <= BO_OrAssign; 25440e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 25450e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); } 25460e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 25470e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isCompoundAssignmentOp(Opcode Opc) { 25482de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 25492de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 25500e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isCompoundAssignmentOp() const { 25510e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isCompoundAssignmentOp(getOpcode()); 25520e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 25530e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 25540e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isShiftAssignOp(Opcode Opc) { 25552de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 25562de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 25570e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isShiftAssignOp() const { 25580e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isShiftAssignOp(getOpcode()); 25590e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 25601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 25624bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 25634bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 25645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 25661237c673c07f9d827129ba02720108816abde562Ted Kremenek 25671237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 256863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 256963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 257063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 25711237c673c07f9d827129ba02720108816abde562Ted Kremenek 25725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 257317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2574f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 25752333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 2576f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 25772333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 2578bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2579bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2580bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 25812333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 25821237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 25831237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 25845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2585ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 25861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 25872de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 25885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 25915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 25925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 25935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 25945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 25955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 25965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2597ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2598ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 25995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2600f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 2601f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2602f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 260317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 2604f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, true), 2605ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2606ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 26071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 26085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 26095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2611ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2612ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2613ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2614ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2615ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2616ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2617ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2618ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2619ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2620ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2621ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2622ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2623ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 26245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 26251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 26261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 26275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 26295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 263056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// AbstractConditionalOperator - An abstract base class for 263156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator and BinaryConditionalOperator. 263256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass AbstractConditionalOperator : public Expr { 263356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation QuestionLoc, ColonLoc; 263456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 263556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 263656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallprotected: 263756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, QualType T, 263856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall ExprValueKind VK, ExprObjectKind OK, 263956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool TD, bool VD, 264056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool ContainsUnexpandedParameterPack, 264156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, 264256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation cloc) 264356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, T, VK, OK, TD, VD, ContainsUnexpandedParameterPack), 264456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QuestionLoc(qloc), ColonLoc(cloc) {} 264556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 264656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall AbstractConditionalOperator(StmtClass SC, EmptyShell Empty) 264756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : Expr(SC, Empty) { } 264856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 264956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 265056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getCond - Return the expression representing the condition for 265156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 265256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const; 265356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 265456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 265556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 265656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const; 265756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 265856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 265956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 266056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 266156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const; 266256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 266356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getQuestionLoc() const { return QuestionLoc; } 266456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation getColonLoc() const { return ColonLoc; } 266556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 266656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 266756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == ConditionalOperatorClass || 266856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall T->getStmtClass() == BinaryConditionalOperatorClass; 266956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 267056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const AbstractConditionalOperator *) { return true; } 267156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 267256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 267356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// ConditionalOperator - The ?: ternary operator. The GNU "missing 267456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// middle" extension is a BinaryConditionalOperator. 267556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass ConditionalOperator : public AbstractConditionalOperator { 26761237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 26775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 267856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 267956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 26805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 268147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 268256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation CLoc, Expr *rhs, 26830943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 268456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, t, VK, OK, 2685898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2686898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2687898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 268856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (lhs->isTypeDependent() || rhs->isTypeDependent()), 268956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (cond->isValueDependent() || lhs->isValueDependent() || 269056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->isValueDependent()), 2691bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 269256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall lhs->containsUnexpandedParameterPack() || 269356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 269456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QLoc, CLoc) { 26951237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 26961237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 26971237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 26981237c673c07f9d827129ba02720108816abde562Ted Kremenek } 26995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2700ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2701ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 270256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(ConditionalOperatorClass, Empty) { } 2703ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2704395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 270556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the ?: operator. 27065549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2707395a2abf0028968d85958610e393e067885dc14fTed Kremenek 270856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getTrueExpr - Return the subexpression representing the value of 270956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to true. 271056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { return cast<Expr>(SubExprs[LHS]); } 27111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 271256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // getFalseExpr - Return the subexpression representing the value of 271356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the expression if the condition evaluates to false. This is 271456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // the same as getRHS. 27155549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 2716f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 271756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 27185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 271947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 272063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 27215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 27225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 27255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 27271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27281237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 272963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 273063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 273163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 27325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 27335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 273456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// BinaryConditionalOperator - The GNU extension to the conditional 273556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// operator which allows the middle operand to be omitted. 273656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// 273756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// This is a different expression kind on the assumption that almost 273856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall/// every client ends up needing to know that these are different. 273956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallclass BinaryConditionalOperator : public AbstractConditionalOperator { 274056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall enum { COMMON, COND, LHS, RHS, NUM_SUBEXPRS }; 274156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 274256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the common condition/left-hand-side expression, which will be 274356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated as the opaque value 274456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the condition, expressed in terms of the opaque value 274556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the left-hand-side, expressed in terms of the opaque value 274656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// - the right-hand-side 274756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Stmt *SubExprs[NUM_SUBEXPRS]; 274856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *OpaqueValue; 274956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 275056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class ASTStmtReader; 275156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallpublic: 275256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall BinaryConditionalOperator(Expr *common, OpaqueValueExpr *opaqueValue, 275356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *cond, Expr *lhs, Expr *rhs, 275456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation qloc, SourceLocation cloc, 275556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 275656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, t, VK, OK, 275756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isTypeDependent() || rhs->isTypeDependent()), 275856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->isValueDependent() || rhs->isValueDependent()), 275956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall (common->containsUnexpandedParameterPack() || 276056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall rhs->containsUnexpandedParameterPack()), 276156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall qloc, cloc), 276256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue(opaqueValue) { 276356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COMMON] = common; 276456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[COND] = cond; 276556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[LHS] = lhs; 276656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SubExprs[RHS] = rhs; 276756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 276856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValue->setSourceExpr(common); 276956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 277056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 277156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief Build an empty conditional operator. 277256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall explicit BinaryConditionalOperator(EmptyShell Empty) 277356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall : AbstractConditionalOperator(BinaryConditionalOperatorClass, Empty) { } 277456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 277556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCommon - Return the common expression, written to the 277656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// left of the condition. The opaque value will be bound to the 277756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// result of this expression. 277856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCommon() const { return cast<Expr>(SubExprs[COMMON]); } 277956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 278056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getOpaqueValue - Return the opaque value placeholder. 278156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueExpr *getOpaqueValue() const { return OpaqueValue; } 278256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 278356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getCond - Return the condition expression; this is defined 278456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 278556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 278656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 278756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getTrueExpr - Return the subexpression which will be 278856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condition evaluates to true; this is defined 278956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// in terms of the opaque value. 279056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getTrueExpr() const { 279156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[LHS]); 279256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 279356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 279456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// \brief getFalseExpr - Return the subexpression which will be 279556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// evaluated if the condnition evaluates to false; this is 279656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// defined in terms of the opaque value. 279756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall Expr *getFalseExpr() const { 279856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<Expr>(SubExprs[RHS]); 279956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 280056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 280156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceRange getSourceRange() const { 280256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return SourceRange(getCommon()->getLocStart(), getFalseExpr()->getLocEnd()); 280356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 280456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const Stmt *T) { 280556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return T->getStmtClass() == BinaryConditionalOperatorClass; 280656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 280756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool classof(const BinaryConditionalOperator *) { return true; } 280856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 280956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall // Iterators 281056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall child_range children() { 281156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return child_range(SubExprs, SubExprs + NUM_SUBEXPRS); 281256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 281356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall}; 281456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 281556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getCond() const { 281656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 281756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getCond(); 281856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getCond(); 281956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 282056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 282156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getTrueExpr() const { 282256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 282356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getTrueExpr(); 282456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getTrueExpr(); 282556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 282656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 282756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCallinline Expr *AbstractConditionalOperator::getFalseExpr() const { 282856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall if (const ConditionalOperator *co = dyn_cast<ConditionalOperator>(this)) 282956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return co->getFalseExpr(); 283056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return cast<BinaryConditionalOperator>(this)->getFalseExpr(); 283156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall} 283256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 28336481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 28346481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 28355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 2836ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *Label; 28375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2838ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelDecl *L, 28396481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 2840bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false), 28412333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 28421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28437d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 28441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 28457d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 28467d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 28477d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 28487d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 28497d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 28507d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 28517d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 285263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 28535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 28545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2856ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner LabelDecl *getLabel() const { return Label; } 2857ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void setLabel(LabelDecl *L) { Label = L; } 28587d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 28595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 28601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 28615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28626481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 28631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28641237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 286563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 28665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2867ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2868ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2869ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2870ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2871f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 2872f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 2873f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 2874ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 28755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2876ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2877ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 28782333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2879d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2880d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 2881f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 2882bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor T->isDependentType(), false, false), 28832333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 28841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28856a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 28866a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 28876a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 28885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 28895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 28906a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 28916a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 289263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2893ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2894ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 28951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2896026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 28976a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2898026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 28996a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 29001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2901ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 29021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2903ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2904ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 29051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29061237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 290763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&SubStmt, &SubStmt+1); } 2908ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2909ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2910d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2911d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2912d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2913d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2914d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2915d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2916d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2917d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2918d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2919d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2920d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2921d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2922d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2923d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 29245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2925d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2926d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2927d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 2928a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 29291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 2930bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor SourceLocation RP); 293194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 293294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 29331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 293494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 293594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 293694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 293794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 29381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 293994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 294094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 294194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 294263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 2943d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2944d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2945d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 29461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2947d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2948d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 29491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2950d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2951d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2952d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2953d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 29541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2955aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the array of expressions. 2956aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 2957aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 2958d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2959d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2960d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 29615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2962d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2963d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2964d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 29655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2966d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 29671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2968888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 296994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2970dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2971dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 29729a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2973d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 29741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2975d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 297663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 297763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+NumExprs); 297863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 2979d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2980d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2981d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 29821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2983d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 29847976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 29857976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 29867976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 29877976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 29887976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 29897976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2990d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 29911237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 29925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2993d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2994d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2995f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 2996f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 2997ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2998bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent, 2999bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 3000bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->containsUnexpandedParameterPack() || 3001bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 30021237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 30031237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 30041237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 30051237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 30061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 30077976932a1c256d447316ffac58e9821417725e34Eli Friedman 300844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 300944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 301044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 30117976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 30127976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 30134ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isConditionTrue(const ASTContext &C) const; 30147976932a1c256d447316ffac58e9821417725e34Eli Friedman 30157976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 30167976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 30174ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad Expr *getChosenSubExpr(const ASTContext &C) const { 30187976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 30197976932a1c256d447316ffac58e9821417725e34Eli Friedman } 30207976932a1c256d447316ffac58e9821417725e34Eli Friedman 30215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 302244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 30235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 302444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 30255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 302644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 302744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 302844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 302944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 30301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 303144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 303244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 30331237c673c07f9d827129ba02720108816abde562Ted Kremenek 303463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3035d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 3036d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3037d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 30381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 3039d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 3040d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 30411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30421237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 304363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 304463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); 304563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 3046d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 3047d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 30482d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 30492d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 30502d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 30512d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 30522d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 30532d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 30542d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 30552d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 30562d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 30572d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 30582d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 30591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 3060bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false), 3061f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 30622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 306344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 306444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 306544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 30662d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 30672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 306844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 30692d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 307063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 30712d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 30722d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 30732d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 30741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 30752d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 30762d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 30771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30782d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 307963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 30802d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 30812d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 308274626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 30837c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 30845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 30852cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 30867c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 30877c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 30882cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 30892cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 3090f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 3091bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor t->isDependentType(), false, 3092bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (TInfo->getType()->containsUnexpandedParameterPack() || 3093bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor e->containsUnexpandedParameterPack())), 30942cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 30957c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 30967c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 30971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 309874626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 3099d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 3100d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 31015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 31025549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 3103d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 3104d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 31052cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 31062cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 31072cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 3108d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 3109d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 31101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3111d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 3112d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 3113d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 311463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 31157c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 31161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 31177c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 31187c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 31197c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 31207c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 31211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31227c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 312363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Val, &Val+1); } 31247c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 31251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 31274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 31284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 31294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 31304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 31314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 31324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 31334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 31344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 3135196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 31364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 31374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 31384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 31394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 31404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 31414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 31424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 31434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 3144196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 31454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 31464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 31474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 31484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 31494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 31504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 31514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 31523498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 31534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 31544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 31554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 3156196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 31574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 31584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 31594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 31604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 31614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 31624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 316366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 3164ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 3165709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 3166709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 316766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 31681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 31704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 31714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 31724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 31730bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 31740bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 31750bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 31760bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3177a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 3178a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 3179a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 3180a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 318166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 3182709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 3183709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 3184ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 3185d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3186d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 3187709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 3188709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 31891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3190ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 31911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3192aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the set of initializers. 3193aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getInits() { return reinterpret_cast<Expr **>(InitExprs.data()); } 3194aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 319516c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 3196c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 31974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 319866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 31991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 320016c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 3201c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 32024c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 320366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 32041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 3206c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 32079e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 32089e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 3209c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 3210fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 3211709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 32121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 32144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 32154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 32164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 32174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 32184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 32194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 32204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 32214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 32224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 32234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 32244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 32254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 32264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 32274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 3228709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 3229c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 32300bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 32310bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 32320bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 32330bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 32340bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 32350bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 32360bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 32370bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 32380bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3239c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3240c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3241b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3242b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3243b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 32441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3245d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3246d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3247d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 324887fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 324987fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 32504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 32514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 32524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 32531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 32544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 32554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 32564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3257a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 32581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 3259d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 3260a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3261a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 326263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 3263c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 326466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 32651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 326666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 326766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 32681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 326966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 327063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 327163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall if (InitExprs.empty()) return child_range(); 327263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&InitExprs[0], &InitExprs[0] + InitExprs.size()); 327363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 32741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3275709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 32768111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3277709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 32788111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 32791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3280ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 32818111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3282ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 32838111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3284ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 32858111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3286ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 32878111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 328866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 328966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 329005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 329105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 329205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 329305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 329405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 329505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 329605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 32971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 329805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 329905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 330005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 330105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 330205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 330305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 330405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 330505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 330605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 330705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 330805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 330905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 331005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3311ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3312ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3313ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3314ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3315ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 331605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 331705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 331805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 331905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3320eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 332105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3322eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 332305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 332405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 332505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 332605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3327ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 3328ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 3329ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 3330ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 333105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 333205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 333305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 333405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 333505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3336ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3337319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3338ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3339eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 33409ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 33419ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 334205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3343d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3344d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3345d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 3346d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 334705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 334805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 334905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 335005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 335105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 335205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 335305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 335405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 335505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 335605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 33571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 335805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 335905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 33601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 336105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 336205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 336305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 336405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 336505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 336605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 336705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 336805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 336905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 337005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 337105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 337205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 337305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 337405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 337505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 33761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 337705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 337805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 337905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 338005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 338105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 338205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 338305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 338405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 338505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 338605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 338705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 338805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 338905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 339005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 339105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 339205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 339305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 339405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 339505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 339605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 339705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 339805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 339905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 340005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 340105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3402ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3403ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 340405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 34051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 34061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 340705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 340805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 340905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 341005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 341105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 341205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 341305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 34141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 341505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 341605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 341705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 341805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 341905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 342005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 342105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 342205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 342305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 34241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 342505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 342605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 342705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 342805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 342905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 343005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 343105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 343205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 343305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 343405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 343505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 343605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 343705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 343805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 343905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 344005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 344105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 344205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 344305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 344405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 344505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 344605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 344705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 344805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 344905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 345005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 345105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 345287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 345387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 345487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 345587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 345687f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 345705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 345805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 345905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 346005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 346105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 346205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 346305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 346405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 346505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 346605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 346705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 346805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 346905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 347005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 347105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 347205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 347305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 347405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 347505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 347605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 347705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 347805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 34794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3480d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3481d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3482d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3483d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3484d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3485d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 34864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 34874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 34884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 34894c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 34904c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 34914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 349205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 349305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 34941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 349505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 349605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 349705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3498eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 349905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3500d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3501d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 350205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 350305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 350405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 350505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 350605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3507ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 35081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 35091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3510ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 351105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3512cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 3513cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 3514cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 3515cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 3516cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3517cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 3518cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 3519cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3520cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 3521711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3522711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3523c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3524319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3525d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 352605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 352705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 352805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 352905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 353005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 353105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 353205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3533d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 353405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 353505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3536eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3537eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3538d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 353905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 354005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 35411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 354205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 354305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 354405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 354505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 354605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 354705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 354805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3549d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3550d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3551d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3552d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3553d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3554d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3555d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3556d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3557d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3558d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3559d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3560d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3561d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3562d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3563d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3564d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3565d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3566d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3567d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3568d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3569ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3570ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3571319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3572ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3573ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 357463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const; 357505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 357605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 35771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 357805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 357905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 358005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 358105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 358263c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 358363c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall Stmt **begin = reinterpret_cast<Stmt**>(this + 1); 358463c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(begin, begin + NumSubExprs); 358563c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 35863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 35873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 35883498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 35893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 35903498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 35911a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 35921a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 35933498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 35941a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 35951a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 35961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 35973498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 35981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 3599f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 3600bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false, false, false) { } 36013498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3602d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3603d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3604d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3605d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 36061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 36073498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 36083498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 36093498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 36103498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 361163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 36123498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 36133498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 36143498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 36153498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 361663c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 361705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 361805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 36192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 36202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 36212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 36222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 36232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 36242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 36252ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 36261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 36272ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 36282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 36292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 363037bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 36311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36322ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 36331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 36352ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 36362ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 36372ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 36381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 36402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 36412ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 36422ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 36432ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 364483ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 36451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36462ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 36472ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 36482ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 364963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 36502ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 36511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 36522ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 36531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 36542ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 36552ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 36561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36572ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 365863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { 365963c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall return child_range(&Exprs[0], &Exprs[0]+NumExprs); 366063c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall } 366137bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 366260adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 36633397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 36642ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 36652ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 36661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36674eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 36684eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 36694eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 36704eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3671a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3672a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3673a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3674a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3675a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 367673525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 367773525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 367873525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3679a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3680a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3681d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3682a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3683a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3684f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 3685f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 36860943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 36870943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 3688bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 3689bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 3690d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 36911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3692d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3693d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3694d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3695d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3696a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3697a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3698d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3699d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3700d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3701d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3702d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3703d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3704d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3705d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3706a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3707a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 37081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3709a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3710a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3711a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 37121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3713a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3714a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3715a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 37161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 371763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 3718a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3719a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 37201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37212140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 37222140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 37232140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 37241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 37261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3727a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3728a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 37291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3730a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 373163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(&Base, &Base+1); } 3732a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3733a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3734a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 373556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 37369c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 37374eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 373856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 373956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 37404eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3741469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall BlockExpr(BlockDecl *BD, QualType ty) 3742f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 3743bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType(), false, false), 3744469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall TheBlock(BD) {} 37459c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 374684af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 374784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 374884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3749d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 375056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 375184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 375284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 375356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 375456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 375556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 375656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 37579c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 375863c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { 375956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 37609c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 37619c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 376256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 376356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 376456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 37651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 37669c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 37674eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 37684eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 37691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37704eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 377163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 37724eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 37731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37746b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// BlockDeclRefExpr - A reference to a local variable declared in an 37756b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall/// enclosing scope. 37764eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 37776b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *D; 37784eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 37797d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 37807d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 37814eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 37826b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall BlockDeclRefExpr(VarDecl *d, QualType t, ExprValueKind VK, 37836b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall SourceLocation l, bool ByRef, bool constAdded = false); 378494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 378594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 378694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 378794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 378894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 37891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37906b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall VarDecl *getDecl() { return D; } 37916b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const VarDecl *getDecl() const { return D; } 37926b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall void setDecl(VarDecl *VD) { D = VD; } 379394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 379494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 379594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 379694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 379763c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall SourceRange getSourceRange() const { return SourceRange(Loc); } 37981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37994eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 380094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 38011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38027d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 38037d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 380489f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian 38051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 38061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 38074eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 38084eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 38091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38104eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 381163c00d7f35fa060c0a446c9df3a4402d9c7757feJohn McCall child_range children() { return child_range(); } 38124eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 38134eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 38145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 38155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 38165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3817