Expr.h revision 469a1eb996e1cb0be54f9b210f836afbddcbb2cc
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" 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/APSInt.h" 25525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner#include "llvm/ADT/APFloat.h" 263b8d116703db8018f855cbb4733ace426422623bNate Begeman#include "llvm/ADT/SmallVector.h" 27b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar#include "llvm/ADT/StringRef.h" 28403ba3522d1b1c97ae5fad81c1a2c4b3a754e1c1Nick Lewycky#include <cctype> 29c5ae899b4bbf65488445316c63168079177db0edSteve Naroff#include <vector> 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 32590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 33c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 34c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 35c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 36c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 378e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 38c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 3956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 40409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson class CXXBaseSpecifier; 4188a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 4288a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 43f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall class ObjCPropertyRefExpr; 44833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall class TemplateArgumentLoc; 45d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall class TemplateArgumentListInfo; 4688a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 477ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 48f871d0cc377a1367b519a6cce26be74607566ebaJohn McCalltypedef llvm::SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; 497ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 56898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 57bef0efd11bc4430a3ee437a3213cec5c18af855aChris Lattner virtual void ANCHOR(); // key function. 585baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 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 /// SourceLocation tokens are not useful in isolation - they are low level 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 150026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 151026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 152026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 153026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 154026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 155df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1577eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// isLValue - True if this expression is an "l-value" according to 1587eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the rules of the current language. C and C++ give somewhat 1597eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// different rules for this concept, but in general, the result of 1607eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// an l-value expression identifies a specific object whereas the 1617eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// result of an r-value expression is a value detached from any 1627eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// specific storage. 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1647eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// C++0x divides the concept of "r-value" into pure r-values 1657eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// ("pr-values") and so-called expiring values ("x-values"), which 1667eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// identify specific objects that can be safely cannibalized for 1677eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// their resources. This is an unfortunate abuse of terminology on 1687eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the part of the C++ committee. In Clang, when we say "r-value", 1697eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// we generally mean a pr-value. 1707eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isLValue() const { return getValueKind() == VK_LValue; } 1717eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isRValue() const { return getValueKind() == VK_RValue; } 1727eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isXValue() const { return getValueKind() == VK_XValue; } 1737eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isGLValue() const { return getValueKind() != VK_RValue; } 1747eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall 1757eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall enum LValueClassification { 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 179fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 18086f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 1812514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 182e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 183e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 1857eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// Reasons why an expression might not be an l-value. 1867eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall LValueClassification ClassifyLValue(ASTContext &Ctx) const; 18753202857c60214d80950a975e6e52aebf30bd16aEli Friedman 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 19344e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 19444e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 19544e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 19644e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 201fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 203ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 2064f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 2075daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 208ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 20986f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 2102514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 211e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 212e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor MLV_ClassTemporary 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 21444e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 21544e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 2161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 2182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 2192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 2202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 2222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 2232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 2242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 2252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 2262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 2272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 2282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 2292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 2302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_ClassTemporary, // A prvalue of class type 2312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 2322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 2342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 2352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 2362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 2372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 2382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 2392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 2402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NotBlockQualified, // Not captured in the closure 2412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 2422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 2432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 2442111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 2452111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2462111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2472111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 2482111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 2492111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 2512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 2522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 2542111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 2552111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 2562111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2572111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2582111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 2592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2602111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 2612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 2622111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 2632111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 2642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2652111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 2662111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 2672111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 2682111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 2692111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 2702111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 2712c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor 2722c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor /// \brief Create a simple, modifiably lvalue 2732c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor static Classification makeSimpleLValue() { 2742c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor return Classification(CL_LValue, CM_Modifiable); 2752c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor } 2762c9a03f3b249e4d9d76eadf758a33142adc4d0a4Douglas Gregor 2772111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 278369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Classify - Classify this expression according to the C++0x 2792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 2802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x defines ([basic.lval]) a new taxonomy of expressions to replace the 2822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 2832111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 2842111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 2852111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 2862111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 2872111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 2882111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 2892111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 2902111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 2912111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 2922111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2932111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 294369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief ClassifyModifiable - Classify this expression according to the 2952111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x expression taxonomy, and see if it is valid on the left side 2962111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 2972111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2982111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 2992111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 3002111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 3012111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 3022111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 3032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 3042111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 3052111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 306f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKindForType - Given a formal return or parameter type, 307f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// give its value kind. 308f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static ExprValueKind getValueKindForType(QualType T) { 309f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall if (const ReferenceType *RT = T->getAs<ReferenceType>()) 3100943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall return (isa<LValueReferenceType>(RT) 3110943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue 3120943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : (RT->getPointeeType()->isFunctionType() 3130943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue : VK_XValue)); 314f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return VK_RValue; 315f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 316f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 317f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKind - The value kind that this expression produces. 318f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind getValueKind() const { 319f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprValueKind>(ExprBits.ValueKind); 320f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 321f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 322f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getObjectKind - The object kind that this expression produces. 323f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// Object kinds are meaningful only for expressions that yield an 324f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// l-value or x-value. 325f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprObjectKind getObjectKind() const { 326f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprObjectKind>(ExprBits.ObjectKind); 327f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 328f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn 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 441ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 442ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 443ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 444ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 445ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 446c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 447ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 448ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 449ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 450c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 451ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 452ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 453ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 454ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 455c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 456efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 457efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 458efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 459ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor bool isNullPointerConstant(ASTContext &Ctx, 460ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NullPointerConstantValueDependence NPC) const; 461efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 46244baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 4631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 464102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 4651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 46611ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 46711ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 46811ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 469369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Result type of CanThrow(). 470369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl enum CanThrowResult { 471369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Cannot, 472369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Dependent, 473369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Can 474369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl }; 475369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Test if this expression, if evaluated, might throw, according to 476369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// the rules of C++ [expr.unary.noexcept]. 477369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CanThrowResult CanThrow(ASTContext &C) const; 478369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl 4794e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 4801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 4814e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 4824e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 4832b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 48456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 48556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 48627c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 48756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 4881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4892fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 4902fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 4912fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 4922fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 4934d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const Expr *IgnoreParenImpCasts() const { 4944d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 4954d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 496f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 497f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 498f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 499f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall Expr *IgnoreParenLValueCasts(); 500f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 501f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const Expr *IgnoreParenLValueCasts() const { 502f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 503f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 5044d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 505ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 506ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 507ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 508ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 5091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5106eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 5116eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 5126eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 513c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 5146eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 5156eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 5166eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 5176eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 518c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 519558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 520558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 521558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 5222f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 5232b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 5244e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 5254e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 52656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 52756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 52856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 529ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 530ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 531ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 5321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 533898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 534898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 535898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 5361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 5375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 5381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 5415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 5455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 5465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 5475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 548a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 549a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 550a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 551a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The nested name specifier. 552a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *NNS; 553c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 554a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source range covered by the nested name specifier. 555a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange Range; 556a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 557a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 558a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 559a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 560a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 561a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 562a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 563c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 564a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 565a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 566c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 567a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 568a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 569a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 570a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 571c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 572a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 573833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 574833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 575a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 576c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 577a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 578833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 579833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 580a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 581d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 582d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 583bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void initializeFrom(const TemplateArgumentListInfo &List, 584bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor bool &Dependent, bool &ContainsUnexpandedParameterPack); 585d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 5868dfbd8b252ba4e6cf4b7a3422f6ef0ca21312dfeArgyrios Kyrtzidis static std::size_t sizeFor(unsigned NumTemplateArgs); 587d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 588a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 589c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 593a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 594c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 595a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 596a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 597c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 598a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 599a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 600a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 601c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 602c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 603a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 604c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 605a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 606dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 6072577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 608a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 6109e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 6112577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// DNLoc - Provides source/type location info for the 6122577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in DecoratedD. 6132577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 6142577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 615a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 616a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 6172cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 618a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 619c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 620a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 621a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 622c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 623a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 624a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 625a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 626a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 627096832c5ed5b9106fa177ebc148489760c3bc496John McCall 628a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 629dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 630d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 631f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 632663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 6332577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 6342577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 6352577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 636f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 6372577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 638663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 639663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 640663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 641c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 6420da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 6430da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 6440da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 6459e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 6465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 647f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, ExprValueKind VK, SourceLocation l) : 648bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor Expr(DeclRefExprClass, t, VK, OK_Ordinary, false, false, false), 649f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DecoratedD(d, 0), Loc(l) { 6500da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 6510da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 6521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 653a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 654a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 655a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 656dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 657a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 658f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 6590da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 660663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 6612577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 6622577743c5650c646fb705df01403707e94f2df04Abramo Bagnara NestedNameSpecifier *Qualifier, 6632577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceRange QualifierRange, 6642577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 6652577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 666f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 6672577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 6682577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 669663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 670663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 671663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis bool HasQualifier, unsigned NumTemplateArgs); 672c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 673dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 674dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 675dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 676904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 6772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 6782577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 6792577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 6802577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 6819e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 6820b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 683a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor virtual SourceRange getSourceRange() const; 6841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 685a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 686a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 687a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 688c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 689a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the source range of 690a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// the nested-name-specifier that precedes the name. Otherwise, 691a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// returns an empty source range. 692a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange getQualifierRange() const { 693a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 694a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceRange(); 695c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 696a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->Range; 697a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 698c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 699c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 700a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 701a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 702a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 703a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 704c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 705a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->NNS; 706a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 707c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 708096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 709096832c5ed5b9106fa177ebc148489760c3bc496John McCall return (DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag); 710096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 711096832c5ed5b9106fa177ebc148489760c3bc496John McCall 712096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 713096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 714096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 715096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(hasExplicitTemplateArgs()); 716096832c5ed5b9106fa177ebc148489760c3bc496John McCall 717096832c5ed5b9106fa177ebc148489760c3bc496John McCall if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 718096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 719096832c5ed5b9106fa177ebc148489760c3bc496John McCall 720096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 721096832c5ed5b9106fa177ebc148489760c3bc496John McCall getNameQualifier() + 1); 722096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 723096832c5ed5b9106fa177ebc148489760c3bc496John McCall 724096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 725096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 726096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 727096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 728a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 729d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 730096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 731096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 732096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 733096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getExplicitTemplateArgsOpt() const { 734096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 735096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 736096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 737096832c5ed5b9106fa177ebc148489760c3bc496John McCall 738d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 739d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 740d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 741096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 742096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 743d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 744c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 745a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 746a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 747a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 748096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 749a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 750c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 751096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 752a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 753c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 754a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 755a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 756833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 757096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 758a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 759c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 760096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 761a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 762c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 763a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 764a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 765a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 766096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 767a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 768c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 769096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 770a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 771c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 772a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 773a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 774a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 775096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 776a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 777c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 778096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 779a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 780c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 7811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 78299e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 7835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 7851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 78677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 78777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 78877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 789663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 79060adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 7913397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 7925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 794d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 795d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 796227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 797227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 798227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 799227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 800848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 801848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 802848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 803848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 804227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 8051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 806227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 807227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 808227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 809227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 811f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 812bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor type->isDependentType(), type->isDependentType(), 813bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 814f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 8151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 81617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 8171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 81817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 81917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 820227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 82117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 82217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 82317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 82417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 82517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 826848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 8273a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 828227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 829227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 8301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 832227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 833d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 8341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 83577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 83677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 83777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 838227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 839227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 8409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 8419996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 8429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 8439996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 8449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 8459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 8469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 8479996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 8489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 8499996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned BitWidth; 8509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 8519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 8529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 8539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 8549996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 8569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8579996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 8589996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 8599996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 8619996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage() : BitWidth(0), VAL(0) { } 8629996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 8649996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 8659996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 8669996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 8679996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 8689996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 8699996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 8709996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 8719996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8729996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8739996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APIntStorage : public APNumericStorage { 8749996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 8759996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return getIntValue(); } 8769996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 8779996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8789996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APFloatStorage : public APNumericStorage { 8809996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 8819996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return llvm::APFloat(getIntValue()); } 8829996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 8839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 8849996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 8859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 8889996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APIntStorage Num; 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8909996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8919996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 8929996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 8939996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 8949996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 8989996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral(ASTContext &C, const llvm::APInt &V, 8999996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l) 900bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(IntegerLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 901bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 902f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l) { 9035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 9049996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 906a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 9079996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 9089996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // or UnsignedLongLongTy 9099996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 9109996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 9119996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 9120b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9139996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return Num.getValue(); } 9145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 916313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 917313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 918313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 9199996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { Num.setValue(C, Val); } 9200b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 9210b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 9261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 92777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 92877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 92977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 935c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 938c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 939bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 940bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 941f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Value(value), Loc(l), IsWide(iswide) { 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9430b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9440b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 9450b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 9460b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 947018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 948c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 9491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 9511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9540b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 9550b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 9560b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 9570b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 96277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 96377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 96477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 96577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 9699996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APFloatStorage Num; 970720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 9729996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9739996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 974720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 975bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(FloatingLiteralClass, Type, VK_RValue, OK_Ordinary, false, false, 976bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 9779996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IsExact(isexact), Loc(L) { 9789996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 9799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 98117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 9821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 9839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(FloatingLiteralClass, Empty), IsExact(false) { } 98417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 9859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 9869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 9879996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 9889996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 9899996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9909996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return Num.getValue(); } 9919996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 9929996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis Num.setValue(C, Val); 9939996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 99417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 995720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 99617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 997c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 998da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 999da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 1000da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 1001da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 10021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 100317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 100417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 100517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 10121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 101377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 101477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 101577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10185d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 10195d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 10205d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 10215d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 10225d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 10235d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 10245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 10255d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 10265d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 1027bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false, 1028bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 1029f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 10301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1031cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 10321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 1033cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 1034cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 10355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 10365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1037cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1038cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 10395d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 10401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 10425d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 10435d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 10441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10455d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 10465d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 10475d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 10485d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 10495d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1050e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1051e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 1052e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1053a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1054c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1055c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1056690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1057690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 10588bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1059690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1060c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1061c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1062c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1063c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1064c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1065c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 10685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 1070726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 1071726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 10722085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1073f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1074bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false, false) {} 10751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10772085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 10782085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 10792085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 10802085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 1081a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 10822085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 10832085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 10841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 10852085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 10862085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 10872085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 10882085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1089a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1090673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1091673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1092673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1093b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 1094b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 1095b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 10962f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 1098673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1099673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 1100b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 1101673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 1103673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 1104673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 11058d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1106b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 1107b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1108b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 110933fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 111033fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 111133fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1112726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1113726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1114726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 11151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1116726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1117726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1118726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1119726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 11201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1121673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1122673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1123673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 112408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner 112508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 112608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 112708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 112808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 112908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 113008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 113108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 113208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 113308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 113408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1135673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1136b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1137b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1138b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 11411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 11471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 114877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 114977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 115077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 11545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 11565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 11575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1160898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1161f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 1162bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->isTypeDependent(), val->isValueDependent(), 1163bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->containsUnexpandedParameterPack()), 1164898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 11651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1166c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 11671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1168c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1169c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 11705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 11715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1172c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1173c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 1174866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1176313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1177313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1178c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1179313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1180313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1181313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1182c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1183313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 11841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 11881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 118977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 119077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 119177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11950518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 11960518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1198dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1199dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1200dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1201dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1202dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1203dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1204dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12075baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 12085baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 12100799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12120799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 12131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1215f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1216f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1217f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1218de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 1219bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->isValueDependent(), 1220bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->containsUnexpandedParameterPack()), 12210799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12230b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 12241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 12252de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 12260b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12270799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 12280b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 12290b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 12310b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 12320b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 12350b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 12360b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 12382085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 12392de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 12402085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1242cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 12432085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 12442de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 12452085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 12465a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 12470799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 12480799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 12492de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 1250993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc == UO_PreInc || Opc == UO_PostInc; 12512de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 12522de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 1253993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc <= UO_PreDec; 12542de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 12552de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 12562de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 12572de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 12580799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 12591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 12615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 12625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 12635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1264bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1265bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1266bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1267bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1268bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1269bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1270bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1271bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 12725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 12735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 12745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 12765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 12775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 12791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 12825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 12841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 128577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 128677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 128777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 12918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 12928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 12938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 12948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1295c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// double d; 12968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 12978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 12988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 12998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 13008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 13018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1302c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 13038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 13058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 13068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 13078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 13088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 13098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 13108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1311cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 13128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1313cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 13148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1315cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1316cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1317cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1318cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1319cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 13208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 13218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 13238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1324c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 13268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1327c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 13298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1330c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - An unsigned index into the array of Expr*'s stored after this node 13318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 13328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 13338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 13348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1335c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - A CXXBaseSpecifier*, for references that look at a field in a 1336cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 13378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1338c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 13408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1341c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 13428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 13438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1344c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1346c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 13478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1348c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 13498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1350c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 13528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 13538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1354c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 13558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1356cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1357cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1358cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1359cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1360c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1362c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt Kind getKind() const { 13638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 13648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1365c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 13678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 13688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 13698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 13708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 13718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 13748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 13758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1376cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 13778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1378c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 13808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 13818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1382c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1383cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1384cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1385cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1386c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1387cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1388c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 13908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 13918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 13928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1393c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// contains the location of the period (if there is one) and the 13948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 13958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange getRange() const { return Range; } 13968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 13978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1399c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 14018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 14028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 14038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 14048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 14058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 14068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1407c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1408c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfExpr(ASTContext &C, QualType type, 14098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1410c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 14118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 14128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 14138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 14158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1416c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 14178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1419c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1420c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *Create(ASTContext &C, QualType type, 1421c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1422c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 14238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 14248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 14258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1426c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *CreateEmpty(ASTContext &C, 14278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 14288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 14308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 14318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 14328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 14348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 14358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1436c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 14388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 14398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 14418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 14428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1443c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor const OffsetOfNode &getComponent(unsigned Idx) { 14458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 14468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<OffsetOfNode *> (this + 1)[Idx]; 14478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 14508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 14518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 14528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1453c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 14558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 14568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 14598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 14608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 14618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 14628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 14658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 14668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 14678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 14688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1469c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 14718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 14728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual SourceRange getSourceRange() const { 14758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 14768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 14798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 14808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 14838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 14858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_begin(); 14868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_end(); 14878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 14888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14890518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 14900518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 14910518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 14920518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 14930518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1494d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1495a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1496d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1497d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 14985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 149942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 15005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1501a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall SizeOfAlignOfExpr(bool issizeof, TypeSourceInfo *TInfo, 15020518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 15030518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 1504f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SizeOfAlignOfExprClass, resultType, VK_RValue, OK_Ordinary, 1505ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 15062850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1507bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->isDependentType(), 1508bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->containsUnexpandedParameterPack()), 1509ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 1510a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1511ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1512ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 15131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, Expr *E, 1514ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 1515ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 1516f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SizeOfAlignOfExprClass, resultType, VK_RValue, OK_Ordinary, 1517ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1518ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1519bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->isTypeDependent(), 1520bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->containsUnexpandedParameterPack()), 1521ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 1522ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1523d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 15240518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 15250b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 15260b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 15270b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 15280b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 15300b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 15310b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15320518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 15330518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 15345ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 15355ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1536a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 15370518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 15385ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 15390518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1540caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 15410518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1542d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 15430518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1544caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1545caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 1546caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 15470b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15480b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1549a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1550a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 15511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 15520b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 15530b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15540518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 15550518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 15560518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 15570518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 15580518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 15590518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 156076e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 15610b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 15620b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15630b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 15640b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1565866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1566866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 1567866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1568866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 15695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == SizeOfAlignOfExprClass; 15725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15730518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 15741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 157577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 157677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 157777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 15825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 15835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 15855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 158677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 15871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 15885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 15895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15902324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 1591f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 159273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 1593f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 15942850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 1595bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 1596bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 1597bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 15982850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 159973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 160073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 160173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 16021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1603cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1604cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1605cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1606cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16072324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 16082324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 16092324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 16102324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 16112324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 161233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 161333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 161433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 161533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 16165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 16175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1618cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1619cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16205549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 16215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1622cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 16231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 16255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 162677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 16271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 16295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 16302324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 16311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 16335549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 16342324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 16351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 163677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 16375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 16381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 16391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 164177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 16425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1644026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1645cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1646cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16475cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 16515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 16531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 165477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 165577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 165677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 16575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1660b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 16611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1662b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 16631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1664b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1665b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 16665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 166777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 16685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 16695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 16705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 16711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1672b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1673b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 1674668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 1675f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, SourceLocation rparenloc); 167642602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 16775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 1679f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 16801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16811f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1682ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 16831f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 16845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 16855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 168618b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1687a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1688d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 1689d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 1690d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 1691d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 1692d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 1693a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1694a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1695bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1696bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1697bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1698a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 16995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 17005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 17015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 17021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1703aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the call arguments. 1704aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getArgs() { return reinterpret_cast<Expr **>(SubExprs + ARGS_START); } 1705aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 17065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 17075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 17085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 17095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 17105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 17125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 17135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 17145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1716934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1717934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1718934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1719934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 1720934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 17211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1722d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1723d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1724d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 17258189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 17261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 17285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 17291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1730d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1731d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 17325549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 17335549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 17341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 17365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 17375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 17385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1739cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1740cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 17414ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad unsigned isBuiltinCall(const ASTContext &Context) const; 17421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 17441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 17456dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 17466dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 17471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1748d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 17491f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1750866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 17511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 175277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 17535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17564bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 17574bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 17585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 176088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 176177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 176277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 176377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 17645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1766ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 17675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 17685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 17696bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 17706bb8017bb9e828d118e15e59d71c66bba323c364John McCall struct MemberNameQualifier : public NameQualifier { 1771161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 17726bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 17736bb8017bb9e828d118e15e59d71c66bba323c364John McCall 1774ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1775ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 17765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 17771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1778ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1779ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1780f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 17811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1782ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 17835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 17841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17852577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 17862577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 17872577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 17882577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 1789ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 179083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 17911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 179283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 17936bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 17946bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 1795c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 17966bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 17971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1798c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1799c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1800c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1801c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 18026bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 1803c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 18041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 180583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 18066bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 18076bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 18086bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 180983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 181083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 181183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 18126bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 1813c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1814c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1817f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1818f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 1819f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1820f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1821bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 1822bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 18232577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 18242577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 18252577743c5650c646fb705df01403707e94f2df04Abramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) { 18262577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 18272577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 18282577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 18292577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 18302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 18312577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 18322577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // for constructors, destructors and conversion oeprators). 18332577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1834f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 1835f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1836f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1837bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 1838bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 18392577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 18402577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 18416bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1842510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 18431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 184483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 1845161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 18462577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 1847d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1848f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 18491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 185088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 18515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 185257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 185357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 185457e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 185557e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 185657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1857f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1858f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 18591f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 18606bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1861161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 18626bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1863161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1864161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 18656bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 18666bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 18676bb8017bb9e828d118e15e59d71c66bba323c364John McCall 18681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 18690979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 18700979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 18716bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 18721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 187383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 187483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 187583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 18761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 18776bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 187883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 18791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 188083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 188183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 18821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 188483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 188583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 18861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 18876bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 188883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 18891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 189083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 189183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1892c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1893c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1894c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1895096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 18961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1897c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1899d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1900d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1901d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1902096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 1903096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 1904096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1905096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1906096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1907096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 1908096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 1909096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 1910096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(HasExplicitTemplateArgumentList); 1911096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!HasQualifierOrFoundDecl) 1912096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 1913096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1914096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 1915096832c5ed5b9106fa177ebc148489760c3bc496John McCall getMemberQualifier() + 1); 1916096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1917096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1918096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1919096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 1920096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 1921096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 1922096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 1923096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1924096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1925096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 1926096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 1927096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 1928096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getOptionalExplicitTemplateArgs() const { 1929096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 1930096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 1931d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 1932c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 19331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1934c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 19351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1936c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1937c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 19381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1939096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 1940c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1942c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1943c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1944833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1945c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 19461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 19471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1948096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 1949c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1951c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1952c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 19531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1954c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 19551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 19561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1957096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 1958c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1961c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 19621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1963c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1964c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 19651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1966096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 1967c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19692577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 19702577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 19712577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 19722577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 19732577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 19742577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 19755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 19761f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 19771f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1978ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1979ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1980026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 19811f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 19825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 198472527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 198572527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 19862577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceLocation EndLoc = (HasExplicitTemplateArgumentList) 19872577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ? getRAngleLoc() : getMemberNameInfo().getEndLoc(); 19881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 198972527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 199072527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1991c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1992c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 19935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 19965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 199883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 19995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 20011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20021237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 20031237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 20041237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 20054045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 20064045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 20074045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 20085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 20095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 2011aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 2012aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 20130fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 20140fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 20150fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 20160fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 20171d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 20181d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 20191d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 202042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 20215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 2022e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 2023aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 202442f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 2025f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 2026f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 2027bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor tinfo->getType()->isDependentType(), 2028bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->isValueDependent(), 2029bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->containsUnexpandedParameterPack()), 203042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 20311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2032ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 2033ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 2034ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 2035ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 20365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 20375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 2038ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 2039e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 2040e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 2041ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 2042ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 20430fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 2044ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2045ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 204642f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 204742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 204842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 204973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 20500fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 20510fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 20520fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 20530fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 205473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 20550fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 205673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2057aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 20581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2060aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 2061aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 20621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20631237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 20641237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 20651237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2066aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2067aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 206849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 206949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 207049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 207149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 20720835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2073cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 20745baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 20751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2076cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 20770835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2078409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2079daa8e4e888758d55a7a759dd4a91b83921cef222John McCall void CheckCastConsistency() const { 2080409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 2081409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 20825cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 2083cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 2084cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 2085409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 2086409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 2087f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(!path_empty() && "Cast kind should have a base path!"); 2088f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 2089409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2090409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 2091409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 2092409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 2093409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 2094409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 2095409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 2096409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 2097404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall case CK_NullToPointer: 2098409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 2099409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 2100409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 2101409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 2102409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 2103409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 2104409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 2105409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 2106409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 2107409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 2108409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 2109569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor case CK_ObjCObjectLValueCast: 21102bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingRealToComplex: 2111f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToReal: 21122bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingComplexCast: 2113f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToIntegralComplex: 21142bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralRealToComplex: 2115f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToReal: 21162bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralComplexCast: 2117f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToFloatingComplex: 2118daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(!getType()->isBooleanType() && "unheralded conversion to bool"); 2119daa8e4e888758d55a7a759dd4a91b83921cef222John McCall // fallthrough to check for null base path 2120daa8e4e888758d55a7a759dd4a91b83921cef222John McCall 2121daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_Dependent: 21220ae287a498b8cec2086fe6b7e753cbb3df63e74aJohn McCall case CK_LValueToRValue: 2123f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall case CK_GetObjCProperty: 2124daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_NoOp: 2125daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_PointerToBoolean: 2126daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralToBoolean: 2127daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingToBoolean: 2128daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_MemberPointerToBoolean: 2129daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingComplexToBoolean: 2130daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralComplexToBoolean: 21315082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_LValueBitCast: // -> bool& 21325082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_UserDefinedConversion: // operator bool() 2133f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(path_empty() && "Cast kind should not have a base path!"); 2134409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 2135409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2136409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 2137409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2138409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2139f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2140f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2141f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2142f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2143f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 21440835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2145f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2146f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2147f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2148898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2149898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2150898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2151898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2152898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 2153bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType() || (op && op->isValueDependent()), 2154bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (ty->containsUnexpandedParameterPack() || 2155bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor op->containsUnexpandedParameterPack())), 21568e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2157daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 21588e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 21598e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 2160daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 2161f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 21621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2163087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2164f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 21658e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 21668e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 21678e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 21681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21690835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 21708e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 21718e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2172f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2173f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 21740835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 21750835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2176087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2177087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 21786eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 21796eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 21806eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 21816eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 21826eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 21836eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 21846eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 218541b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2186f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2187f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 21888e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 21898e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2190f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2191f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2192f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2193f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2194f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2195f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 219641b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 21971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21984bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 21994bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 22000835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 22010835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 22021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22030835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 22040835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 22050835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 22060835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 22070835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 220849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 220949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 221049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 221149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 221249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2213bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2214bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2215906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2216bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2217bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2218bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2219bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2220906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 22211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2222906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2223906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2224906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2225906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2226bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2227bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 22280835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2229906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2230f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 22315baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2232f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 22335baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 223490045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2235087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2236f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2237f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2238f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2239f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2240f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2241f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 22425baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2243f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 22445baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2245f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2246f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2247f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2248f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 22495baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2250f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2251f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2252087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 22530835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 22540835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 22550835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 225690045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 22571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 225949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 226049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 226149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 226249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 226349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 22641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 226549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 226649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 226749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 226849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 226949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 227049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 22715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 227249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 227349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 227449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 227549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 227649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2277906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2278906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 22790835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 22809d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 22819d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 22829d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 228349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 228449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2285f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2286f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2287f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2288f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 228949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2290db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2291f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2292f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2293db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 229449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 22959d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 22969d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 22979d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 22989d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 22999d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 230049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 230149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 23029d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 230349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 23041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 23054bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 23064bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 230749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 230849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 230949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 231049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 23116eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 231249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 231349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 23146eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2315b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2316b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2317f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2318f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2319f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 232041b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2321f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 232241b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 232349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2324db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2325f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2326f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2327f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2328f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2329f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2330f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2331f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2332f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2333f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2334f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2335f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2336db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2337b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2338db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2339db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2340b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2341db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2342db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 2344b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 23455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 23471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 23485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23496eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 23505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23523fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 23533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 23543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 23553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 23563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 23573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 23583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 23593fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 23603fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 23613fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 23623fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 23633fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 23643fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 23653fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 23663fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 23673fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 23683fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 23693fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 23705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 23715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 23725baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 23735baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 237417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 23750799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 23760799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 23770799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 237817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 23795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 23801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 23811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 238217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2383f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 238417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2385f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2386898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 2387bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2388bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2389bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 2390898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 23911237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 23921237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 23931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 23945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 23955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2397db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 23981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 23992de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2400db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 240117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2402db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2403db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 24040799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2405db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2406db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 24075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2408db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 24095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2410db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2411db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 24125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 24135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 24145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 24175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 24185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 24195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24200799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2421a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2422063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2423063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2424063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2425063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2426063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2427063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2428063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2429063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 24305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2431200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 24322de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 24332de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 24340799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 24352de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 24360799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2437aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 24382de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 24390799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2440f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 24412de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 24420799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2443f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 24442de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 24450799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 24461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24472de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 24480799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2449aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 24502de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 24510799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2452f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 24530e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isAssignmentOp(Opcode Opc) { 24540e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return Opc >= BO_Assign && Opc <= BO_OrAssign; 24550e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 24560e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); } 24570e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 24580e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isCompoundAssignmentOp(Opcode Opc) { 24592de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 24602de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 24610e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isCompoundAssignmentOp() const { 24620e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isCompoundAssignmentOp(getOpcode()); 24630e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 24640e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 24650e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isShiftAssignOp(Opcode Opc) { 24662de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 24672de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 24680e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isShiftAssignOp() const { 24690e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isShiftAssignOp(getOpcode()); 24700e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 24711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 24734bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 24744bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 24755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 24771237c673c07f9d827129ba02720108816abde562Ted Kremenek 24781237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 24791237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 24801237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 24811237c673c07f9d827129ba02720108816abde562Ted Kremenek 24825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 248317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2484f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 24852333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 2486f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 24872333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 2488bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2489bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2490bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 24912333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 24921237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 24931237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 24945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2495ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 24961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 24972de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 24985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 25015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 25025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 25035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 25045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 25055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 25065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2507ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2508ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 25095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2510f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 2511f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2512f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 251317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 2514f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, true), 2515ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2516ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 25171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 25185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 25195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2521ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2522ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2523ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2524ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2525ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2526ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2527ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2528ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2529ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2530ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2531ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2532ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2533ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 25345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 25351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 25361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 25375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 25415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 25425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 25435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 25441237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 25455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2546f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Stmt* Save; 254747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 25485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 254947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 2550f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation CLoc, Expr *rhs, Expr *save, 25510943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 25520943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ConditionalOperatorClass, t, VK, OK, 2553898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2554898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2555898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 2556898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 25571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 2558898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 2559bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (rhs && rhs->isValueDependent())), 2560bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 2561bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs && lhs->containsUnexpandedParameterPack()) || 2562bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (rhs && rhs->containsUnexpandedParameterPack()))), 256347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 256447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 25651237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 25661237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 25671237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 2568f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Save = save; 25691237c673c07f9d827129ba02720108816abde562Ted Kremenek } 25705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2571ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2572ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 2573ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 2574ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2575395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 2576395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 25775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2578ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 2579395a2abf0028968d85958610e393e067885dc14fTed Kremenek 2580395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2581f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // expression if the condition evaluates to true. 2582395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 2583af9b96828f9126d993c3e155b8453be62013b735Fariborz Jahanian return cast<Expr>(SubExprs[LHS]); 2584395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 25851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2586ae2777cfe7d21f73e5a4155082fe20197cec62bdNick Lewycky // getFalseExpr - Return the subexpression representing the value of the ?: 2587395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 25885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 2589f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 2590f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // getSaveExpr - In most cases this value will be null. Except a GCC extension 2591f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // allows the left subexpression to be omitted, and instead of that condition 2592f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // be returned. e.g: x ?: y is shorthand for x ? x : y, except that the 2593f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // expression "x" is only evaluated once. Under this senario, this function 2594f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // returns the original, non-converted condition expression for the ?:operator 2595f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getSaveExpr() const { return Save? cast<Expr>(Save) : (Expr*)0; } 2596f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 2597f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getLHS() const { return Save ? 0 : cast<Expr>(SubExprs[LHS]); } 2598ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 2599ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 26005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2601ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 26025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2603f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getSAVE() const { return Save? cast<Expr>(Save) : (Expr*)0; } 2604f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian void setSAVE(Expr *E) { Save = E; } 2605f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 260647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 260747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 260847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 260947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 261047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 261147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 26125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 26135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 26145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 26175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 26191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26201237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26211237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26221237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 26235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 26245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26256481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 26266481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 26275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 26285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 26295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 26306481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 26316481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 2632bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false), 26332333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 26341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26357d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 26361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 26377d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 26387d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 26397d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 26407d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 26417d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 26427d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 26437d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 26445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 26455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 26465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 26497d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 26507d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 26515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 26521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 26535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26546481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 26551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26561237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26571237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26581237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 26595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2660ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2661ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2662ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2663ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2664f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 2665f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 2666f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 2667ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 26685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2669ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2670ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 26712333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2672d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2673d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 2674f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 2675bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor T->isDependentType(), false, false), 26762333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 26771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26786a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 26796a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 26806a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 26815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 26825549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 26836a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 26846a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 2685ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 2686ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2687ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 26881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2689026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 26906a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2691026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 26926a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 26931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2694ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 26951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2696ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2697ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 26981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26991237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 27001237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 27011237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2702ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2703ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2704d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2705d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2706d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2707d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2708d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2709d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2710d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2711d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2712d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2713d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2714d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2715d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2716d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2717d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 27185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2719d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2720d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2721d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 2722a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 27231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 2724bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor SourceLocation RP); 272594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 272694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 27271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 272894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 272994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 273094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 273194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 27321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 273394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 273494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 273594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2736d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 2737d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2738d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2739d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 27401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2741d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2742d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 27431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2744d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2745d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2746d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2747d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 27481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2749aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the array of expressions. 2750aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getSubExprs() { return reinterpret_cast<Expr **>(SubExprs); } 2751aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 2752d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2753d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2754d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 27555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2756d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2757d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2758d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 27595549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2760d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 27611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2762888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 276394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2764dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2765dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 27669a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2767d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 27681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2769d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 2770d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 2771d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 2772d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2773d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2774d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 27751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2776d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 27777976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 27787976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 27797976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 27807976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 27817976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 27827976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2783d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 27841237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 27855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2786d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2787d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2788f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 2789f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 2790ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2791bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent, 2792bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 2793bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->containsUnexpandedParameterPack() || 2794bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 27951237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 27961237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 27971237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 27981237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 27991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 28007976932a1c256d447316ffac58e9821417725e34Eli Friedman 280144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 280244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 280344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 28047976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 28057976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 28064ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad bool isConditionTrue(const ASTContext &C) const; 28077976932a1c256d447316ffac58e9821417725e34Eli Friedman 28087976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 28097976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 28104ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad Expr *getChosenSubExpr(const ASTContext &C) const { 28117976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 28127976932a1c256d447316ffac58e9821417725e34Eli Friedman } 28137976932a1c256d447316ffac58e9821417725e34Eli Friedman 28145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 281544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 28165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 281744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 28185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 281944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 282044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 282144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 282244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 28231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 282444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 282544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 28261237c673c07f9d827129ba02720108816abde562Ted Kremenek 2827d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2828d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2829d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2830d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 28311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2832d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2833d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 28341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28351237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 28361237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 28371237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2838d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2839d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 28402d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 28412d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 28422d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 28432d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 28442d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 28452d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 28462d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 28472d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 28482d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 28492d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 28502d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 28511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 2852bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false), 2853f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 28542d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 285544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 285644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 285744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 28582d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 28592d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 286044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 28612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 28622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 28632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 28642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 28652d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 28661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 28672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 28682d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 28691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28702d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 28712d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 28722d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 28732d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 28742d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 287574626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 28767c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 28775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 28782cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 28797c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 28807c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 28812cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 28822cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 2883f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 2884bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor t->isDependentType(), false, 2885bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (TInfo->getType()->containsUnexpandedParameterPack() || 2886bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor e->containsUnexpandedParameterPack())), 28872cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 28887c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 28897c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 28901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 289174626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 2892d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2893d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28945549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 28955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2896d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2897d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28982cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 28992cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 29002cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 2901d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2902d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 29031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2904d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2905d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2906d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 29077c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 29087c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 29091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 29107c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 29117c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 29127c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 29137c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 29141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29157c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 29167c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 29171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 29187c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 29191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 29214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 29224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 29234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 29244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 29254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 29264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 29274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 29284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2929196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 29304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 29314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 29324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 29334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 29344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 29354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 29364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 29374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2938196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 29394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 29404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 29414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 29424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 29434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 29444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 29454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 29463498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 29474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 29484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 29494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2950196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 29514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 29524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 29534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 29544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 29554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 29564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 295766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 2958ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 2959709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 2960709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 296166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 29621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 29644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 29654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 29664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 29670bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 29680bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 29690bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 29700bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2971a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2972a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2973a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2974a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 297566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 2976709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 2977709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 2978ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 2979d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2980d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2981709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 2982709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 29831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2984ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 29851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2986aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor /// \brief Retrieve the set of initializers. 2987aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor Expr **getInits() { return reinterpret_cast<Expr **>(InitExprs.data()); } 2988aa165f8458b51c546bebff947343e1a36f3594cbDouglas Gregor 298916c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 2990c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 299266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 29931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 299416c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 2995c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 299766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 29981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 3000c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 30019e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 30029e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 3003c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 3004fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 3005709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 30061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 30084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 30094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 30104c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 30114c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 30124c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 30134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 30144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 30154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 30164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 30174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 30184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 30194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 30204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 30214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 3022709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 3023c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 30240bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 30250bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 30260bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 30270bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 30280bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 30290bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 30300bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 30310bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 30320bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3033c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3034c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3035b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3036b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3037b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 30381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3039d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3040d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3041d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 304287fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 304387fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 30444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 30454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 30464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 30471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 30484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 30494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 30504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3051a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 30521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 3053d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 3054a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3055a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 3056c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek virtual SourceRange getSourceRange() const; 3057c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 305866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 30591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 306066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 306166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 30621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 306366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 306466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 306566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 30661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3067709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 30688111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3069709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 30708111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 30711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3072ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 30738111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3074ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 30758111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3076ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 30778111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3078ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 30798111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 308066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 308166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 308205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 308305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 308405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 308505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 308605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 308705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 308805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 30891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 309005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 309105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 309205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 309305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 309405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 309505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 309605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 309705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 309805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 309905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 310005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 310105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 310205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3103ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3104ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3105ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3106ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3107ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 310805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 310905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 311005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 311105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3112eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 311305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3114eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 311505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 311605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 311705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 311805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3119ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 3120ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 3121ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 3122ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 312305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 312405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 312505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 312605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 312705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3128ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3129319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3130ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3131eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 31329ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 31339ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 313405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3135d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3136d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3137d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 3138d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 313905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 314005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 314105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 314205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 314305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 314405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 314505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 314605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 314705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 314805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 31491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 315005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 315105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 31521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 315305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 315405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 315505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 315605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 315705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 315805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 315905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 316005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 316105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 316205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 316305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 316405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 316505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 316605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 316705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 31681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 316905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 317005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 317105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 317205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 317305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 317405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 317505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 317605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 317705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 317805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 317905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 318005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 318105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 318205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 318305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 318405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 318505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 318605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 318705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 318805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 318905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 319005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 319105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 319205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 319305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3194ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3195ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 319605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 31971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 31981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 319905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 320005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 320105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 320205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 320305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 320405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 320505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 32061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 320705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 320805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 320905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 321005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 321105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 321205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 321305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 321405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 321505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 32161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 321705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 321805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 321905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 322005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 322105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 322205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 322305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 322405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 322505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 322605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 322705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 322805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 322905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 323005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 323105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 323205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 323305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 323405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 323505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 323605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 323705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 323805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 323905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 324005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 324105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 324205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 324305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 324487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 324587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 324687f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 324787f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 324887f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 324905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 325005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 325105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 325205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 325305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 325405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 325505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 325605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 325705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 325805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 325905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 326005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 326105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 326205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 326305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 326405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 326505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 326605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 326705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 326805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 326905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 327005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 32714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3272d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3273d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3274d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3275d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3276d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3277d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 32784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 32794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 32804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 32814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 32824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 32834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 328405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 328505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 32861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 328705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 328805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 328905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3290eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 329105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3292d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3293d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 329405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 329505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 329605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 329705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 329805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3299ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 33001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 33011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3302ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 330305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3304cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 3305cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 3306cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 3307cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 3308cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3309cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 3310cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 3311cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3312cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 3313711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3314711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3315c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3316319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3317d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 331805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 331905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 332005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 332105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 332205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 332305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 332405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3325d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 332605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 332705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3328eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3329eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3330d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 333105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 333205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 33331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 333405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 333505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 333605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 333705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 333805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 333905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 334005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3341d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3342d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3343d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3344d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3345d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3346d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3347d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3348d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3349d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3350d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3351d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3352d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3353d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3354d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3355d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3356d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3357d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3358d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3359d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3360d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3361ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3362ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3363319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3364ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3365ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 336605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 336705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 336805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 33691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 337005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 337105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 337205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 337305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 337405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 33751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 33763498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 33773498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33783498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 33793498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 33803498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 33811a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 33821a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 33833498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 33841a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 33851a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 33861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 33873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 33881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 3389f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 3390bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false, false, false) { } 33913498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3392d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3393d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3394d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3395d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 33961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 33973498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 33983498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 33993498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 34003498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 34013498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 34023498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 34033498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 34043498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 34053498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 34063498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 34071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 340805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 340905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 34102ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34112ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 34122ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 34132ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 34142ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 34152ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34162ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 34171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 34182ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 34192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 342137bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 34221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 34241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 34262ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 34272ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 34282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 34291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 34312ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 34322ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 34332ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 34342ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 343583ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 34361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34372ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 34382ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 34392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 34412ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 34421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 34432ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 34441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 34452ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 34462ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 34471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34482ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 34492ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 34502ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 345137bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 345260adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 34533397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 34542ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 34552ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34574eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 34584eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 34594eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 34604eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3461a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3462a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3463a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3464a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3465a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 346673525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 346773525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 346873525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3469a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3470a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3471d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3472a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3473a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3474f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 3475f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 34760943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 34770943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 3478bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 3479bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 3480d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 34811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3482d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3483d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3484d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3485d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3486a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3487a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3488d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3489d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3490d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3491d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3492d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3493d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3494d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3495d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3496a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3497a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 34981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3499a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3500a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3501a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 35021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3503a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3504a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3505a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 35061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3507a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 3508a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3509a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 35101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35112140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 35122140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 35132140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 35141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 35161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3517a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3518a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 35191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3520a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 3521a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 3522a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 3523a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3524a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3525a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 352656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 35279c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 35284eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 352956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 353056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 35314eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3532469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall BlockExpr(BlockDecl *BD, QualType ty) 3533f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 3534bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType(), false, false), 3535469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall TheBlock(BD) {} 35369c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 353784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 353884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 353984af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3540d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 354156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 354284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 354384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 354456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 354556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 354656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 354756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 35489c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 35499c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 355056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 35519c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 35529c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 355356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 355456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 355556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 35561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 35579c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 35584eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 35594eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 35601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35614eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 35624eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 35634eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 35644eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 35651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35664eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 35674eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 35684eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 35691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 35704eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 35717d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 35727d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 357389f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Stmt *CopyConstructorVal; 35744eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3575f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall BlockDeclRefExpr(ValueDecl *d, QualType t, ExprValueKind VK, 3576f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, bool ByRef, bool constAdded = false, 3577a779d9ca2fdf1247f65de0e6acf2870d8be53ccdDouglas Gregor Stmt *copyConstructorVal = 0); 357894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 357994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 358094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 358194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 358294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 35831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35844eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 35854eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 358694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 358794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 358894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 358994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 359094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 35914eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 35921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35934eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 359494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 35951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35967d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 35977d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 359889f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian 359989f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian const Expr *getCopyConstructorExpr() const 360089f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 360189f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Expr *getCopyConstructorExpr() 360289f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 360389f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian void setCopyConstructorExpr(Expr *E) { CopyConstructorVal = E; } 360494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 36051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 36061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 36074eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 36084eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 36091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36104eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 36114eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 36124eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 36134eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 36144eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 36157cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 36167cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// fixed type and value class. These don't correspond to concrete 36177cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// syntax; instead they're used to express operations (usually copy 36187cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// operations) on values whose source is generally obvious from 36197cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// context. 36207cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCallclass OpaqueValueExpr : public Expr { 36217cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall friend class ASTStmtReader; 3622b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor SourceLocation Loc; 3623b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor 36247cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCallpublic: 3625b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor OpaqueValueExpr(SourceLocation Loc, QualType T, ExprValueKind VK, 3626b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor ExprObjectKind OK = OK_Ordinary) 3627f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 3628b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor T->isDependentType(), T->isDependentType(), false), 3629b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor Loc(Loc) { 36307cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall } 36317cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 36327cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall explicit OpaqueValueExpr(EmptyShell Empty) 36337cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall : Expr(OpaqueValueExprClass, Empty) { } 36347cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 3635b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor /// \brief Retrieve the location of this expression. 3636b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor SourceLocation getLocation() const { return Loc; } 3637b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor 36387cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual SourceRange getSourceRange() const; 36397cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual child_iterator child_begin(); 36407cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual child_iterator child_end(); 36417cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 36427cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall static bool classof(const Stmt *T) { 36437cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall return T->getStmtClass() == OpaqueValueExprClass; 36447cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall } 36457cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall static bool classof(const OpaqueValueExpr *) { return true; } 36467cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall}; 36477cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 36485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 36495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 36505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3651