Expr.h revision f6a1648197562e0b133440d612d9af297d0a86cc
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" 28c5ae899b4bbf65488445316c63168079177db0edSteve Naroff#include <vector> 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 31590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 32c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 33c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 34c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 35c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 368e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 37c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 3856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 39409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson class CXXBaseSpecifier; 4088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 4188a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 42f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall class ObjCPropertyRefExpr; 43833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall class TemplateArgumentLoc; 44d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall class TemplateArgumentListInfo; 4588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 467ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 47f871d0cc377a1367b519a6cce26be74607566ebaJohn McCalltypedef llvm::SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; 487ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 55898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 56bef0efd11bc4430a3ee437a3213cec5c18af855aChris Lattner virtual void ANCHOR(); // key function. 575baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 588e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCallprotected: 59f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, 60f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall bool TD, bool VD) : Stmt(SC) { 618e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.TypeDependent = TD; 628e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.ValueDependent = VD; 63f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ValueKind = VK; 64f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ObjectKind = OK; 65898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 66898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 67898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 680b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 690b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 700b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 72f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 749d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 759d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 769d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 779d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 789d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 799d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 809d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 81905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 828320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 83f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 859d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 8677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 87898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 88898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 89898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 91898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 92898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 93898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 948e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isValueDependent() const { return ExprBits.ValueDependent; } 95898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 960b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 978e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setValueDependent(bool VD) { ExprBits.ValueDependent = VD; } 980b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 99898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 104898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 106898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 107898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 1108e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isTypeDependent() const { return ExprBits.TypeDependent; } 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1120b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1138e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setTypeDependent(bool TD) { ExprBits.TypeDependent = TD; } 1140b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 124026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 125026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 126026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 127026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 128026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 129df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1317eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// isLValue - True if this expression is an "l-value" according to 1327eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the rules of the current language. C and C++ give somewhat 1337eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// different rules for this concept, but in general, the result of 1347eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// an l-value expression identifies a specific object whereas the 1357eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// result of an r-value expression is a value detached from any 1367eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// specific storage. 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1387eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// C++0x divides the concept of "r-value" into pure r-values 1397eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// ("pr-values") and so-called expiring values ("x-values"), which 1407eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// identify specific objects that can be safely cannibalized for 1417eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// their resources. This is an unfortunate abuse of terminology on 1427eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the part of the C++ committee. In Clang, when we say "r-value", 1437eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// we generally mean a pr-value. 1447eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isLValue() const { return getValueKind() == VK_LValue; } 1457eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isRValue() const { return getValueKind() == VK_RValue; } 1467eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isXValue() const { return getValueKind() == VK_XValue; } 1477eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isGLValue() const { return getValueKind() != VK_RValue; } 1487eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall 1497eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall enum LValueClassification { 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 153fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 15486f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 1552514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 156e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 157e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 1597eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// Reasons why an expression might not be an l-value. 1607eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall LValueClassification ClassifyLValue(ASTContext &Ctx) const; 16153202857c60214d80950a975e6e52aebf30bd16aEli Friedman 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 16744e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 16844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 16944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 17044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 175fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 177ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1804f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1815daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 182ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 18386f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 1842514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 185e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 186e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor MLV_ClassTemporary 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 18844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 18944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 1901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1912111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 1922111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 1932111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 1942111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 1952111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 1962111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 1972111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 1982111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 1992111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 2002111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 2012111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 2022111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 2032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 2042111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_ClassTemporary, // A prvalue of class type 2052111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 2062111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2072111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 2082111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 2092111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 2102111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 2112111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 2122111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 2132111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 2142111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NotBlockQualified, // Not captured in the closure 2152111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 2162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 2172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 2182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 2192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 2222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 2232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 2252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 2262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 2282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 2292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 2302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 2332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 2352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 2362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 2372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 2382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 2402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 2412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 2422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 2432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 2442111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 2452111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 246369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Classify - Classify this expression according to the C++0x 2472111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 2482111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2492111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x defines ([basic.lval]) a new taxonomy of expressions to replace the 2502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 2512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 2522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 2532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 2542111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 2552111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 2562111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 2572111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 2582111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 2592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 2602111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 262369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief ClassifyModifiable - Classify this expression according to the 2632111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x expression taxonomy, and see if it is valid on the left side 2642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 2652111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2662111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 2672111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 2682111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 2692111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 2702111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 2712111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 2722111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2732111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 274f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKindForType - Given a formal return or parameter type, 275f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// give its value kind. 276f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static ExprValueKind getValueKindForType(QualType T) { 277f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall if (const ReferenceType *RT = T->getAs<ReferenceType>()) 2780943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall return (isa<LValueReferenceType>(RT) 2790943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue 2800943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : (RT->getPointeeType()->isFunctionType() 2810943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue : VK_XValue)); 282f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return VK_RValue; 283f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 284f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 285f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKind - The value kind that this expression produces. 286f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind getValueKind() const { 287f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprValueKind>(ExprBits.ValueKind); 288f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 289f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 290f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getObjectKind - The object kind that this expression produces. 291f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// Object kinds are meaningful only for expressions that yield an 292f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// l-value or x-value. 293f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprObjectKind getObjectKind() const { 294f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprObjectKind>(ExprBits.ObjectKind); 295f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 296f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 297f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setValueKind - Set the value kind produced by this expression. 298f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setValueKind(ExprValueKind Cat) { ExprBits.ValueKind = Cat; } 299f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 300f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setObjectKind - Set the object kind produced by this expression. 301f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setObjectKind(ExprObjectKind Cat) { ExprBits.ObjectKind = Cat; } 302f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 3032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 3042111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 3052111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3062111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 3072111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 30833bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 30933bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 31033bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 31238d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 31338d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 31438d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 3151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 316f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// \brief If this expression is an l-value for an Objective C 317f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// property, find the underlying property reference expression. 318f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const ObjCPropertyRefExpr *getObjCProperty() const; 319f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 320093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 321093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 322c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3232b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 3242b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 3252b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 3262b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 3272b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 328c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 333590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 334590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 336590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 3378070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 338590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 340c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 341c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 3424204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 3431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 34594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 3462d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 34794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 3481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 35094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 35194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 3521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 35494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 35594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 35694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 35794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 35894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 35994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 36094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 36194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 36294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 36394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 3641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 366e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 367e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // isGlobalLValue - Return true if the evaluated lvalue expression 368e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // is global. 369e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool isGlobalLValue() const; 370e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 371e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 372e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 373e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 374e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 37594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 37694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 3776ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 378019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 379019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 380019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 3815b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 3825b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 383cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 384cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 385cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// any crazy technique that we want to. 386cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall bool EvaluateAsBooleanCondition(bool &Result, ASTContext &Ctx) const; 387cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 3886ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 38945b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 39045b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 391c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 3926ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 393138d6a6890c171068ac60430431eaadb3fcef9abGabor Greif /// which must be evaluated each time and must not be optimized away 3946ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 3956ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 396393c247fe025ccb5f914e37e948192ea86faef8cFariborz Jahanian bool HasSideEffects(ASTContext &Ctx) const; 397c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 39851fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 39951fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 40051fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 40151fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 402b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 403b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 4041b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 4051b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 406e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue. 407e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool EvaluateAsAnyLValue(EvalResult &Result, ASTContext &Ctx) const; 408e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 409ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 410ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 411ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 412ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 413ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 414c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 415ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 416ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 417ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 418c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 419ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 420ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 421ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 422ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 423c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 424efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 425efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 426efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 427ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor bool isNullPointerConstant(ASTContext &Ctx, 428ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NullPointerConstantValueDependence NPC) const; 429efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 43044baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 4311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 432102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 4331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43411ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 43511ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 43611ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 437369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Result type of CanThrow(). 438369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl enum CanThrowResult { 439369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Cannot, 440369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Dependent, 441369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Can 442369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl }; 443369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Test if this expression, if evaluated, might throw, according to 444369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// the rules of C++ [expr.unary.noexcept]. 445369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CanThrowResult CanThrow(ASTContext &C) const; 446369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl 4474e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 4481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 4494e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 4504e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 4512b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 45256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 45356f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 45427c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 45556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 4561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4572fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 4582fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 4592fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 4602fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 4614d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const Expr *IgnoreParenImpCasts() const { 4624d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 4634d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 464f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 465f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 466f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 467f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall Expr *IgnoreParenLValueCasts(); 468f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 469f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const Expr *IgnoreParenLValueCasts() const { 470f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 471f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 4724d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 473ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 474ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 475ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 476ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 4771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4786eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 4796eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 4806eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 481c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 4826eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 4836eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 4846eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 4856eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 486c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 487558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 488558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 489558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 4902f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 4912b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 4924e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 4934e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 49456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 49556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 49656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 497ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 498ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 499ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 5001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 501898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 502898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 503898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 5041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 5061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 5135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 5145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 5155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 516a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 517a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 518a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 519a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The nested name specifier. 520a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *NNS; 521c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 522a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source range covered by the nested name specifier. 523a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange Range; 524a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 525a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 526a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 527a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 528a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 529a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 530a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 531c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 532a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 533a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 534c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 535a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 536a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 537a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 538a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 539c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 540a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 541833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 542833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 543a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 544c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 545a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 546833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 547833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 548a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 549d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 550d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 551d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 5528dfbd8b252ba4e6cf4b7a3422f6ef0ca21312dfeArgyrios Kyrtzidis static std::size_t sizeFor(unsigned NumTemplateArgs); 553d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 554a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 555c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 5575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 5585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 559a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 560c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 561a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 562a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 563c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 564a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 565a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 566a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 567c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 568c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 569a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 570c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 571a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 572dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 5732577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 574a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 5769e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 5772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// DNLoc - Provides source/type location info for the 5782577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in DecoratedD. 5792577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 5802577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 581a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 582a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 5832cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 584a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 585c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 586a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 587a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 588c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 589a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 590a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 591a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 592a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 593096832c5ed5b9106fa177ebc148489760c3bc496John McCall 594a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 595dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 596d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 597f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 598663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 5992577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 6002577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 6012577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 602f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 6032577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 604663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 605663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 606663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 607c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 6080da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 6090da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 6100da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 6119e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 6125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 613f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, ExprValueKind VK, SourceLocation l) : 614f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(DeclRefExprClass, t, VK, OK_Ordinary, false, false), 615f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DecoratedD(d, 0), Loc(l) { 6160da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 6170da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 6181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 619a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 620a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 621a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 622dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 623a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 624f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 6250da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 626663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 6272577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 6282577743c5650c646fb705df01403707e94f2df04Abramo Bagnara NestedNameSpecifier *Qualifier, 6292577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceRange QualifierRange, 6302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 6312577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 632f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 6332577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 6342577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 635663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 636663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 637663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis bool HasQualifier, unsigned NumTemplateArgs); 638c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 639dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 640dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 641dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 642904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 6432577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 6442577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 6452577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 6462577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 6479e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 6480b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 649a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor virtual SourceRange getSourceRange() const; 6501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 651a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 652a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 653a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 654c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 655a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the source range of 656a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// the nested-name-specifier that precedes the name. Otherwise, 657a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// returns an empty source range. 658a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange getQualifierRange() const { 659a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 660a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceRange(); 661c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 662a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->Range; 663a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 664c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 665c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 666a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 667a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 668a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 669a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 670c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 671a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->NNS; 672a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 673c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 674096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 675096832c5ed5b9106fa177ebc148489760c3bc496John McCall return (DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag); 676096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 677096832c5ed5b9106fa177ebc148489760c3bc496John McCall 678096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 679096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 680096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 681096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(hasExplicitTemplateArgs()); 682096832c5ed5b9106fa177ebc148489760c3bc496John McCall 683096832c5ed5b9106fa177ebc148489760c3bc496John McCall if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 684096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 685096832c5ed5b9106fa177ebc148489760c3bc496John McCall 686096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 687096832c5ed5b9106fa177ebc148489760c3bc496John McCall getNameQualifier() + 1); 688096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 689096832c5ed5b9106fa177ebc148489760c3bc496John McCall 690096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 691096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 692096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 693096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 694a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 695d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 696096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 697096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 698096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 699096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getExplicitTemplateArgsOpt() const { 700096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 701096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 702096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 703096832c5ed5b9106fa177ebc148489760c3bc496John McCall 704d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 705d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 706d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 707096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 708096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 709d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 710c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 711a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 712a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 713a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 714096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 715a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 716c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 717096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 718a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 719c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 720a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 721a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 722833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 723096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 724a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 725c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 726096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 727a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 728c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 729a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 730a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 731a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 732096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 733a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 734c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 735096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 736a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 737c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 738a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 739a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 740a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 741096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 742a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 743c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 744096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 745a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 746c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 7471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 74899e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 7511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 75277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 75377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 75477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 755663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 75660adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 7573397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 760d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 761d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 762227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 763227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 764227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 765227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 766848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 767848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 768848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 769848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 770227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 7711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 772227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 773227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 774227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 775227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 7761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 777f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 778f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall type->isDependentType(), type->isDependentType()), 779f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 7801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 78117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 7821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 78317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 78417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 785227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 78617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 78717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 78817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 78917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 79017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 791848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 7923a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 793227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 794227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 7951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 797227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 798d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 7991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 80077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 80177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 80277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 803227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 804227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 8059996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 8069996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 8079996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 8089996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 8099996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 8109996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 8119996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 8129996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 8139996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 8149996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned BitWidth; 8159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 8169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 8179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 8189996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 8199996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8209996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 8219996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8229996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 8239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 8249996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8259996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 8269996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage() : BitWidth(0), VAL(0) { } 8279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8289996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 8299996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 8309996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 8319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 8329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 8339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 8349996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 8359996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 8369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8379996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APIntStorage : public APNumericStorage { 8399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 8409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return getIntValue(); } 8419996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 8429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8439996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APFloatStorage : public APNumericStorage { 8459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 8469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return llvm::APFloat(getIntValue()); } 8479996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 8489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 8499996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 8509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 8539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APIntStorage Num; 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 8579996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 8589996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 8599996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 8639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral(ASTContext &C, const llvm::APInt &V, 8649996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l) 865f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(IntegerLiteralClass, type, VK_RValue, OK_Ordinary, false, false), 866f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l) { 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 8689996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 870a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 8719996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 8729996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // or UnsignedLongLongTy 8739996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 8749996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 8759996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 8760b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8779996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return Num.getValue(); } 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 880313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 881313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 882313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 8839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { Num.setValue(C, Val); } 8840b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 8850b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 8885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 8901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 89177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 89277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 89377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 899c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 902c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 903f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false), 904f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Value(value), Loc(l), IsWide(iswide) { 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9070b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 9080b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 9090b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 910018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 911c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 9121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 9141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9170b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 9180b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 9190b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 9200b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 92577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 92677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 92777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 92877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 9329996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APFloatStorage Num; 933720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 9359996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 937720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 938f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(FloatingLiteralClass, Type, VK_RValue, OK_Ordinary, false, false), 9399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IsExact(isexact), Loc(L) { 9409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 9419996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 94317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 9441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 9459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(FloatingLiteralClass, Empty), IsExact(false) { } 94617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 9479996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 9489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 9499996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 9509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 9519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return Num.getValue(); } 9539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 9549996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis Num.setValue(C, Val); 9559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 95617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 957720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 95817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 959c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 960da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 961da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 962da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 963da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 9641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 96517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 96617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 96717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 9741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 97577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 97677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 97777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9805d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 9815d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 9825d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 9835d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 9845d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 9855d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 9865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 9875d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 9885d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 989f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false), 990f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 9911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 992cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 9931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 994cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 995cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 9965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 9975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 998cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 999cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 10005d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 10011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 10035d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 10045d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 10051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10065d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 10075d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 10085d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 10095d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 10105d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1011e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1012e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 1013e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1014a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1015c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1016c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1017690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1018690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 10198bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1020690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1021c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1022c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1023c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1024c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1025c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1026c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 10295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 10305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 1031726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 1032726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 10332085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1034f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1035f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false) {} 10361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10382085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 10392085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 10402085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 10412085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 1042a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 10432085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 10442085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 10451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 10462085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 10472085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 10482085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 10492085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1050a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1051673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1052673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1053673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1054b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 1055b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 1056b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 10572f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 10585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 1059673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1060673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 1061b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 1062673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 1064673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 1065673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 10668d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1067b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 1068b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1069b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 107033fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 107133fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 107233fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1073726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1074726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1075726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 10761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1077726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1078726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1079726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1080726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 10811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1082673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1083673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1084673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 108508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner 108608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 108708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 108808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 108908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 109008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 109108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 109208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 109308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 109408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 109508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1096673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1097b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1098b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1099b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 11021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 11035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 11065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 11081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 110977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 111077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 111177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 11175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 11185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1121898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1122f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 11231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump val->isTypeDependent(), val->isValueDependent()), 1124898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 11251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1126c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 11271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1128c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1129c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 11305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 11315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1132c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1133c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 1134866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1136313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1137313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1138c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1139313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1140313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1141313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1142c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1143313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 11441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 11481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 114977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 115077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 115177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11550518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 11560518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 11575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1158dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1159dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1160dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1161dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1162dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1163dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1164dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11675baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 11685baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 11700799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 11720799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 11731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1175f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1176f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1177f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1178de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 11791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump input->isValueDependent()), 11800799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11820b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 11831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 11842de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 11850b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11860799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 11870b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 11880b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 11900b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 11910b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 11940b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 11950b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 11972085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 11982de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 11992085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1201cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 12022085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 12032de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 12042085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 12055a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 12060799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 12070799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 12082de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 1209993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc == UO_PreInc || Opc == UO_PostInc; 12102de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 12112de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 1212993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc <= UO_PreDec; 12132de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 12142de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 12152de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 12162de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 12170799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 12181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 12215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1223bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1224bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1225bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1226bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1227bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1228bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1229bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1230bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 12381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 12431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 124477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 124577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 124677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 12508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 12518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 12528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 12538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1254c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// double d; 12558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 12568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 12578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 12588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 12598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 12608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1261c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 12628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 12648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 12658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 12668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 12678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 12688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 12698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1270cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 12718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1272cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 12738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1274cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1275cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1276cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1277cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1278cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 12798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 12808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 12828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1283c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 12858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1286c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 12888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1289c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - An unsigned index into the array of Expr*'s stored after this node 12908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 12918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 12928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 12938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1294c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - A CXXBaseSpecifier*, for references that look at a field in a 1295cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 12968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1297c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 12998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1300c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 13018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 13028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1303c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1305c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 13068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1307c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 13088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1309c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 13118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 13128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1313c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 13148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1315cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1316cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1317cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1318cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1319c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1321c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt Kind getKind() const { 13228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 13238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1324c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 13268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 13278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 13288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 13298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 13308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 13338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 13348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1335cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 13368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1337c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 13398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 13408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1341c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1342cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1343cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1344cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1345c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1346cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1347c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 13498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 13508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 13518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1352c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// contains the location of the period (if there is one) and the 13538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 13548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange getRange() const { return Range; } 13558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 13568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1358c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 13608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 13618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 13628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 13638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 13648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 13658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1366c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1367c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfExpr(ASTContext &C, QualType type, 13688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1369c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 13708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 13718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 13728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 13748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1375c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 13768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1378c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1379c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *Create(ASTContext &C, QualType type, 1380c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1381c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 13828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 13838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 13848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1385c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *CreateEmpty(ASTContext &C, 13868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 13878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 13898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 13908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 13918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 13938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 13948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1395c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 13978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 13988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 14008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 14018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1402c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor const OffsetOfNode &getComponent(unsigned Idx) { 14048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 14058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<OffsetOfNode *> (this + 1)[Idx]; 14068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 14098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 14108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 14118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1412c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 14148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 14158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 14188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 14198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 14208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 14218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 14248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 14258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 14268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 14278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1428c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 14308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 14318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual SourceRange getSourceRange() const { 14348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 14358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 14388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 14398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 14428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 14448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_begin(); 14458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_end(); 14468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 14478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14480518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 14490518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 14500518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 14510518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 14520518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1453d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1454a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1455d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1456d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 14575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 145842602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 14595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1460a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall SizeOfAlignOfExpr(bool issizeof, TypeSourceInfo *TInfo, 14610518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 14620518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 1463f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SizeOfAlignOfExprClass, resultType, VK_RValue, OK_Ordinary, 1464ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 14652850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1466a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TInfo->getType()->isDependentType()), 1467ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 1468a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1469ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1470ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 14711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, Expr *E, 1472ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 1473ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 1474f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SizeOfAlignOfExprClass, resultType, VK_RValue, OK_Ordinary, 1475ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1476ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1477ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 1478ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 1479ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1480d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 14810518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 14820b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 14830b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 14840b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 14850b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 14870b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 14880b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14890518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 14900518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 14915ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 14925ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1493a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 14940518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 14955ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 14960518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1497caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 14980518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1499d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 15000518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1501caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1502caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 1503caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 15040b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15050b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1506a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1507a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 15081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 15090b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 15100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15110518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 15120518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 15130518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 15140518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 15150518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 15160518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 151776e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 15180b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 15190b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15200b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 15210b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1522866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1523866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 1524866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1525866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 15265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == SizeOfAlignOfExprClass; 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15300518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 15311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 153277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 153377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 153477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 15355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 15385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 15395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 15405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 15425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 154377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 15441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 15455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 15465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15472324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 1548f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 154973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 1550f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 15512850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 15522850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 15532850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 155473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 155573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 155673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 15571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1558cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1559cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1560cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1561cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 15622324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 15632324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 15642324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 15652324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 15662324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 156733fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 156833fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 156933fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 157033fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 15715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 15725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1573cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1574cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 15755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 15765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1577cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 15781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 15805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 158177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 15821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 15845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 15852324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 15861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 15885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 15892324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 15901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 159177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 15925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 15931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 15941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 159677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 15975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1599026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1600cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1601cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16025cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 16035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 16065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 16081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 160977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 161077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 161177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 16125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1615b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 16161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1617b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 16181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1619b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1620b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 16215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 162277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 16235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 16245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 16255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 16261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1627b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1628b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 1629668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 1630f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, SourceLocation rparenloc); 163142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 16325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 1634f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 16351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16361f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1637ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 16381f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 16395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 16405549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 164118b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1642a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1643d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 1644d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 1645d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 1646d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 1647d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 1648a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1649a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1650bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1651bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1652bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1653a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 16545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 16555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 16571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 16615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 16645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 16655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 16665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1668934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1669934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1670934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1671934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 1672934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 16731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1674d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1675d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1676d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 16778189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 16781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 16805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 16811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1682d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1683d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 16845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 16855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 16861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 16885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 16895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 16905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1691cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1692cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 16933c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 16941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 16961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 16976dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 16986dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 16991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1700d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 17011f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1702866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 17031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 170477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 17055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17084bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 17094bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 17105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 171288a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 171377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 171477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 171577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 17165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1718ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 17195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 17205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 17216bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 17226bb8017bb9e828d118e15e59d71c66bba323c364John McCall struct MemberNameQualifier : public NameQualifier { 1723161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 17246bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 17256bb8017bb9e828d118e15e59d71c66bba323c364John McCall 1726ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1727ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 17285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 17291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1730ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1731ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1732f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 17331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1734ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 17355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 17361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17372577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 17382577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 17392577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 17402577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 1741ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 174283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 17431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 174483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 17456bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 17466bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 1747c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 17486bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 17491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1750c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1751c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1752c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1753c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 17546bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 1755c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 17561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 175783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 17586bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 17596bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 17606bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 176183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 176283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 176383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 17646bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 1765c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1766c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1769f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1770f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 1771f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1772f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 17732577743c5650c646fb705df01403707e94f2df04Abramo Bagnara base->isTypeDependent(), base->isValueDependent()), 17742577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 17752577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 17762577743c5650c646fb705df01403707e94f2df04Abramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) { 17772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 17782577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 17792577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 17802577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 17812577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 17822577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 17832577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // for constructors, destructors and conversion oeprators). 17842577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1785f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 1786f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1787f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1788ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 17892577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 17902577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 17916bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1792510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 17931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 179483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 1795161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 17962577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 1797d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1798f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 17991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 180088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 18015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 180257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 180357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 180457e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 180557e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 180657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1807f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1808f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 18091f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 18106bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1811161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 18126bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1813161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1814161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 18156bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 18166bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 18176bb8017bb9e828d118e15e59d71c66bba323c364John McCall 18181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 18190979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 18200979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 18216bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 18221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 182383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 182483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 182583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 18261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 18276bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 182883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 18291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 183083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 183183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 18321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 183483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 183583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 18361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 18376bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 183883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 18391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 184083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 184183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1842c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1843c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1844c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1845096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 18461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1847c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1849d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1850d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1851d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1852096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 1853096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 1854096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1855096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1856096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1857096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 1858096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 1859096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 1860096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(HasExplicitTemplateArgumentList); 1861096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!HasQualifierOrFoundDecl) 1862096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 1863096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1864096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 1865096832c5ed5b9106fa177ebc148489760c3bc496John McCall getMemberQualifier() + 1); 1866096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1867096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1868096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1869096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 1870096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 1871096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 1872096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 1873096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1874096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1875096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 1876096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 1877096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 1878096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getOptionalExplicitTemplateArgs() const { 1879096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 1880096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 1881d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 1882c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 18831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1884c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 18851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1886c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1887c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 18881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1889096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 1890c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1892c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1893c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1894833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1895c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 18961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 18971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1898096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 1899c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1901c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1902c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 19031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1904c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 19051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 19061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1907096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 1908c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1911c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 19121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1913c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1914c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 19151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1916096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 1917c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19192577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 19202577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 19212577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 19222577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 19232577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 19242577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 19255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 19261f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 19271f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1928ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1929ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1930026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 19311f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 19325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 193472527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 193572527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 19362577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceLocation EndLoc = (HasExplicitTemplateArgumentList) 19372577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ? getRAngleLoc() : getMemberNameInfo().getEndLoc(); 19381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 193972527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 194072527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1941c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1942c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 19435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 19465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 194883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 19495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 19511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19521237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 19531237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 19541237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 19554045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 19564045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 19574045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 19585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 1961aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1962aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 19630fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 19640fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 19650fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 19660fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 19671d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 19681d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 19691d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 197042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 19715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1972e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1973aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 19742333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can compound literals be value-dependent? 197542f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 1976f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 1977f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 197842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall tinfo->getType()->isDependentType(), false), 197942f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 19801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1981ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1982ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1983ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1984ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 19855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 19865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1987ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1988e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1989e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1990ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1991ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 19920fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1993ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1994ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 199542f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 199642f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 199742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 199873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 19990fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 20000fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 20010fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 20020fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 200373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 20040fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 200573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2006aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 20071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2009aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 2010aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 20111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20121237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 20131237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 20141237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2015aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2016aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 201749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 201849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 201949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 202049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 20210835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2022cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 20235baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 20241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2025cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 20260835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2027409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2028daa8e4e888758d55a7a759dd4a91b83921cef222John McCall void CheckCastConsistency() const { 2029409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 2030409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 20315cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 2032cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 2033cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 2034409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 2035409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 2036f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(!path_empty() && "Cast kind should have a base path!"); 2037f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 2038409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2039409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 2040409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 2041409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 2042409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 2043409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 2044409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 2045409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 2046404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall case CK_NullToPointer: 2047409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 2048409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 2049409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 2050409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 2051409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 2052409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 2053409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 2054409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 2055409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 2056409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 2057409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 2058569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor case CK_ObjCObjectLValueCast: 20592bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingRealToComplex: 2060f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToReal: 20612bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingComplexCast: 2062f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToIntegralComplex: 20632bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralRealToComplex: 2064f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToReal: 20652bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralComplexCast: 2066f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToFloatingComplex: 2067daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(!getType()->isBooleanType() && "unheralded conversion to bool"); 2068daa8e4e888758d55a7a759dd4a91b83921cef222John McCall // fallthrough to check for null base path 2069daa8e4e888758d55a7a759dd4a91b83921cef222John McCall 2070daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_Dependent: 20710ae287a498b8cec2086fe6b7e753cbb3df63e74aJohn McCall case CK_LValueToRValue: 2072f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall case CK_GetObjCProperty: 2073daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_NoOp: 2074daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_PointerToBoolean: 2075daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralToBoolean: 2076daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingToBoolean: 2077daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_MemberPointerToBoolean: 2078daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingComplexToBoolean: 2079daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralComplexToBoolean: 20805082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_LValueBitCast: // -> bool& 20815082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_UserDefinedConversion: // operator bool() 2082f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(path_empty() && "Cast kind should not have a base path!"); 2083409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 2084409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2085409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 2086409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2087409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2088f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2089f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2090f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2091f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2092f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 20930835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2094f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2095f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2096f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2097898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2098898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2099898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 21021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ty->isDependentType() || (op && op->isValueDependent())), 21038e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2104daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 21058e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 21068e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 2107daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 2108f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 21091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2110087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2111f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 21128e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 21138e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 21148e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 21151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21160835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 21178e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 21188e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2119f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2120f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 21210835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 21220835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2123087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2124087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 21256eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 21266eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 21276eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 21286eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 21296eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 21306eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 21316eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 213241b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2133f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2134f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 21358e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 21368e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2137f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2138f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2139f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2140f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2141f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2142f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 214341b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 21441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21454bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 21464bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 21470835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 21480835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 21491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21500835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 21510835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 21520835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 21530835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 21540835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 215549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 215649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 215749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 215849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 215949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2160bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2161bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2162906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2163bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2164bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2165bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2166bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2167906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 21681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2169906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2170906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2171906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2172906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2173bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2174bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 21750835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2176906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2177f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 21785baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2179f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 21805baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 218190045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2182087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2183f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2184f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2185f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2186f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2187f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2188f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 21895baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2190f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 21915baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2192f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2193f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2194f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2195f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 21965baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2197f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2198f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2199087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 22000835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 22010835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 22020835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 220390045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 22041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 220649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 220749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 220849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 220949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 221049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 22111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 221249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 221349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 221449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 221549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 221649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 221749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 22185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 221949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 222049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 222149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 222249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 222349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2224906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2225906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 22260835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 22279d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 22289d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 22299d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 223049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 223149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2232f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2233f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2234f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2235f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 223649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2237db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2238f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2239f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2240db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 224149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 22429d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 22439d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 22449d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 22459d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 22469d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 224749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 224849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 22499d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 225049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 22511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22524bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 22534bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 225449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 225549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 225649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 225749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 22586eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 225949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 226049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 22616eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2262b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2263b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2264f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2265f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2266f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 226741b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2268f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 226941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 227049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2271db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2272f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2273f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2274f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2275f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2276f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2277f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2278f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2279f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2280f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2281f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2282f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2283db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2284b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2285db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2286db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2287b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2288db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2289db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 2291b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 22925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 22955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22966eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 22975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 22985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22993fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 23003fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 23013fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 23023fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 23033fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 23043fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 23053fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 23063fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 23073fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 23083fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 23093fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 23103fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 23113fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 23123fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 23133fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 23143fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 23153fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 23163fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 23175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 23185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 23195baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 23205baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 232117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 23220799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 23230799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 23240799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 232517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 23265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 23271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 23281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 232917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2330f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 233117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2332f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2333898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 23341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump lhs->isValueDependent() || rhs->isValueDependent()), 2335898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 23361237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 23371237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 23381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 23395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 23405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2342db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 23431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 23442de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2345db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 234617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2347db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2348db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23490799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2350db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2351db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23525549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2353db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 23545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2355db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2356db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 23585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 23595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 23625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 23635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 23645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23650799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2366a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2367063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2368063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2369063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2370063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2371063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2372063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2373063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2374063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 23755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2376200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 23772de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 23782de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 23790799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 23802de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 23810799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2382aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 23832de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 23840799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2385f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 23862de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 23870799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2388f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 23892de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 23900799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 23911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23922de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 23930799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2394aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 23952de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 23960799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2397f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 23982de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isAssignmentOp() const { return Opc >= BO_Assign && Opc <= BO_OrAssign; } 23992de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isCompoundAssignmentOp() const { 24002de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 24012de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 24022de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isShiftAssignOp() const { 24032de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 24042de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 24051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 24074bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 24084bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 24095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 24111237c673c07f9d827129ba02720108816abde562Ted Kremenek 24121237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 24131237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 24141237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 24151237c673c07f9d827129ba02720108816abde562Ted Kremenek 24165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 241717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2418f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 24192333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 2420f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 24212333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 24222333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isValueDependent() || rhs->isValueDependent()), 24232333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 24241237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 24251237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 24265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2427ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 24281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 24292de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 24305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 24335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 24345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 24355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 24365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 24375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 24385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2439ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2440ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 24415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2442f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 2443f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2444f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 244517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 2446f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, true), 2447ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2448ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 24491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 24505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 24515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2453ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2454ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2455ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2456ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2457ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2458ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2459ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2460ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2461ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2462ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2463ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2464ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2465ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 24665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 24671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 24681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 24695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 24735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 24745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 24755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 24761237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 24775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2478f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Stmt* Save; 247947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 24805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 248147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 2482f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation CLoc, Expr *rhs, Expr *save, 24830943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 24840943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ConditionalOperatorClass, t, VK, OK, 2485898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2486898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2487898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 2488898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 24891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 2490898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 249147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor (rhs && rhs->isValueDependent()))), 249247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 249347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 24941237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 24951237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 24961237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 2497f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Save = save; 24981237c673c07f9d827129ba02720108816abde562Ted Kremenek } 24995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2500ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2501ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 2502ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 2503ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2504395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 2505395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 25065549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2507ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 2508395a2abf0028968d85958610e393e067885dc14fTed Kremenek 2509395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2510f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // expression if the condition evaluates to true. 2511395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 2512af9b96828f9126d993c3e155b8453be62013b735Fariborz Jahanian return cast<Expr>(SubExprs[LHS]); 2513395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 25141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2515ae2777cfe7d21f73e5a4155082fe20197cec62bdNick Lewycky // getFalseExpr - Return the subexpression representing the value of the ?: 2516395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 25175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 2518f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 2519f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // getSaveExpr - In most cases this value will be null. Except a GCC extension 2520f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // allows the left subexpression to be omitted, and instead of that condition 2521f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // be returned. e.g: x ?: y is shorthand for x ? x : y, except that the 2522f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // expression "x" is only evaluated once. Under this senario, this function 2523f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // returns the original, non-converted condition expression for the ?:operator 2524f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getSaveExpr() const { return Save? cast<Expr>(Save) : (Expr*)0; } 2525f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 2526f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getLHS() const { return Save ? 0 : cast<Expr>(SubExprs[LHS]); } 2527ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 2528ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 25295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2530ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 25315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2532f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getSAVE() const { return Save? cast<Expr>(Save) : (Expr*)0; } 2533f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian void setSAVE(Expr *E) { Save = E; } 2534f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 253547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 253647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 253747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 253847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 253947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 254047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 25415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 25425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 25435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 25451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 25465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 25481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25491237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25501237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25511237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 25525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25546481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 25556481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 25565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 25575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 25585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 25596481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 25606481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 2561f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false), 25622333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 25631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25647d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 25651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 25667d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 25677d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 25687d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 25697d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 25707d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 25717d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 25727d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 25735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 25745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 25755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 25787d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 25797d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 25805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 25811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 25825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25836481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 25841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25851237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25861237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25871237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 25885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2589ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2590ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2591ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2592ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2593f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 2594f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 2595f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 2596ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 25975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2598ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2599ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 26002333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2601d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2602d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 2603f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 2604f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall T->isDependentType(), false), 26052333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 26061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26076a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 26086a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 26096a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 26105549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 26115549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 26126a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 26136a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 2614ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 2615ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2616ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 26171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2618026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 26196a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2620026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 26216a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 26221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2623ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 26241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2625ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2626ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 26271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26281237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26291237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26301237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2631ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2632ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2633dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 2634d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 2635d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 2636d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 2637d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 26383fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *TInfo1; 26393fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *TInfo2; 2640363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2641d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 26421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 26433fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *tinfo1, TypeSourceInfo *tinfo2, 26443fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara SourceLocation RP) : 2645f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(TypesCompatibleExprClass, ReturnType, VK_RValue, OK_Ordinary, 2646f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall false, false), 26473fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TInfo1(tinfo1), TInfo2(tinfo2), BuiltinLoc(BLoc), RParenLoc(RP) {} 2648d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 264944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 265044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 265144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 265244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 26533fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *getArgTInfo1() const { return TInfo1; } 26543fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara void setArgTInfo1(TypeSourceInfo *TInfo) { TInfo1 = TInfo; } 26553fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *getArgTInfo2() const { return TInfo2; } 26563fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara void setArgTInfo2(TypeSourceInfo *TInfo) { TInfo2 = TInfo; } 26573fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara 26583fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara QualType getArgType1() const { return TInfo1->getType(); } 26593fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara QualType getArgType2() const { return TInfo2->getType(); } 26601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 266144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 266244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 26631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 266444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 266544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 26661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2667d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 2668363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2669d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2670d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 26711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == TypesCompatibleExprClass; 2672d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2673d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 26741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26751237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26761237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26771237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2678d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 2679d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2680d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2681d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2682d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2683d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2684d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2685d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2686d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2687d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2688d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2689d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2690d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2691d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2692d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 26935549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2694d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2695d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2696d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 26972333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can a shufflevector be value-dependent? Does type-dependence need 26982333f7727f97018d6742e1e0938133bcfad967abEli Friedman // to be computed differently? 2699a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 27001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 27011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation RP) : 2702f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(ShuffleVectorExprClass, Type, VK_RValue, OK_Ordinary, 2703f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Type->isDependentType(), false), 27042333f7727f97018d6742e1e0938133bcfad967abEli Friedman BuiltinLoc(BLoc), RParenLoc(RP), NumExprs(nexpr) { 27051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2706a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 2707d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 2708d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 2709d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 271094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 271194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 27121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 271394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 271494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 271594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 271694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 27171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 271894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 271994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 272094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2721d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 2722d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2723d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2724d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 27251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2726d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2727d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 27281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2729d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2730d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2731d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2732d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 27331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2734d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2735d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2736d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 27375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2738d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2739d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2740d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 27415549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2742d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 27431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2744888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 274594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2746dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2747dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 27489a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2749d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 27501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2751d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 2752d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 2753d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 2754d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2755d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2756d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 27571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2758d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 27597976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 27607976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 27617976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 27627976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 27637976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 27647976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2765d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 27661237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 27675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2768d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2769d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2770f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 2771f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 2772ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2773f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent), 27741237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 27751237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 27761237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 27771237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 27781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 27797976932a1c256d447316ffac58e9821417725e34Eli Friedman 278044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 278144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 278244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 27837976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 27847976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 278527437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 27867976932a1c256d447316ffac58e9821417725e34Eli Friedman 27877976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 27887976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 27897976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 27907976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 27917976932a1c256d447316ffac58e9821417725e34Eli Friedman } 27927976932a1c256d447316ffac58e9821417725e34Eli Friedman 27935549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 279444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 27955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 279644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 27975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 279844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 279944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 280044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 280144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 28021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 280344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 280444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 28051237c673c07f9d827129ba02720108816abde562Ted Kremenek 2806d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2807d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2808d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2809d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 28101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2811d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2812d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 28131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28141237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 28151237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 28161237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2817d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2818d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 28192d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 28202d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 28212d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 28222d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 28232d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 28242d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 28252d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 28262d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 28272d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 28282d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 28292d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 28301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 2831f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false), 2832f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 28332d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 283444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 283544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 283644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 28372d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 28382d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 283944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 28402d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 28412d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 28422d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 28432d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 28442d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 28451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 28462d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 28472d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 28481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28492d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 28502d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 28512d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 28522d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 28532d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 285474626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 28557c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 28565549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 28572cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 28587c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 28597c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 28602cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 28612cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 2862f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 2863f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall t->isDependentType(), false), 28642cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 28657c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 28667c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 28671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 286874626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 2869d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2870d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 28725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2873d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2874d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28752cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 28762cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 28772cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 2878d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2879d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 28801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2881d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2882d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2883d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28847c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 28857c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 28861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 28877c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 28887c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 28897c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 28907c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 28911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28927c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 28937c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 28941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 28957c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 28961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 28984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 28994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 29004c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 29014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 29024c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 29034c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 29044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 29054c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2906196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 29074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 29084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 29094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 29104c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 29114c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 29124c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 29134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 29144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2915196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 29164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 29174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 29184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 29194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 29204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 29214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 29224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 29233498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 29244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 29254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 29264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2927196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 29284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 29294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 29304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 29314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 29324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 29334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 293466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 2935ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 2936709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 2937709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 293866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 29391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 29414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 29424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 29434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 29440bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 29450bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 29460bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 29470bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2948a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2949a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2950a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2951a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 295266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 2953709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 2954709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 2955ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 2956d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2957d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2958709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 2959709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 29601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2961ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 29621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 296316c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 2964c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 296666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 29671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 296816c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 2969c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 297166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 29721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 2974c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29759e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 29769e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2977c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2978fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2979709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 29801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 29824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 29834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 29844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 29854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 29864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 29874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 29884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 29894c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 29904c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 29914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 29924c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 29934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 29944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 29954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 2996709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 2997c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 29980bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 29990bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 30000bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 30010bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 30020bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 30030bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 30040bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 30050bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 30060bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3007c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3008c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3009b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3010b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3011b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 30121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3013d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3014d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3015d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 301687fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 301787fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 30184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 30194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 30204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 30211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 30224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 30234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 30244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3025a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 30261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 3027d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 3028a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3029a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 3030c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek virtual SourceRange getSourceRange() const; 3031c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 303266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 30331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 303466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 303566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 30361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 303766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 303866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 303966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 30401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3041709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 30428111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3043709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 30448111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 30451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3046ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 30478111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3048ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 30498111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3050ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 30518111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3052ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 30538111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 305466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 305566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 305605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 305705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 305805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 305905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 306005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 306105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 306205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 30631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 306405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 306505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 306605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 306705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 306805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 306905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 307005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 307105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 307205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 307305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 307405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 307505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 307605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3077ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3078ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3079ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3080ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3081ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 308205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 308305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 308405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 308505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3086eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 308705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3088eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 308905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 309005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 309105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 309205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3093ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 3094ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 3095ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 3096ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 309705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 309805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 309905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 310005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 310105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3102ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3103319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3104ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3105eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 31069ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 31079ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 310805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3109d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3110d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3111d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 3112d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 311305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 311405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 311505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 311605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 311705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 311805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 311905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 312005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 312105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 312205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 31231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 312405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 312505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 31261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 312705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 312805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 312905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 313005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 313105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 313205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 313305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 313405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 313505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 313605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 313705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 313805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 313905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 314005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 314105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 31421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 314305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 314405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 314505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 314605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 314705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 314805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 314905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 315005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 315105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 315205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 315305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 315405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 315505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 315605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 315705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 315805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 315905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 316005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 316105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 316205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 316305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 316405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 316505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 316605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 316705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3168ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3169ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 317005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 31711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 31721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 317305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 317405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 317505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 317605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 317705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 317805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 317905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 31801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 318105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 318205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 318305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 318405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 318505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 318605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 318705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 318805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 318905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 31901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 319105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 319205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 319305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 319405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 319505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 319605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 319705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 319805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 319905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 320005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 320105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 320205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 320305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 320405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 320505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 320605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 320705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 320805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 320905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 321005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 321105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 321205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 321305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 321405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 321505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 321605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 321705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 321887f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 321987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 322087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 322187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 322287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 322305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 322405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 322505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 322605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 322705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 322805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 322905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 323005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 323105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 323205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 323305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 323405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 323505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 323605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 323705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 323805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 323905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 324005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 324105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 324205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 324305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 324405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 32454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3246d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3247d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3248d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3249d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3250d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3251d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 32524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 32534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 32544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 32554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 32564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 32574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 325805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 325905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 32601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 326105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 326205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 326305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3264eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 326505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3266d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3267d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 326805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 326905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 327005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 327105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 327205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3273ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 32741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 32751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3276ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 327705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3278cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 3279cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 3280cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 3281cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 3282cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3283cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 3284cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 3285cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3286cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 3287711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3288711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3289c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3290319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3291d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 329205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 329305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 329405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 329505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 329605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 329705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 329805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3299d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 330005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 330105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3302eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3303eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3304d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 330505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 330605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 33071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 330805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 330905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 331005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 331105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 331205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 331305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 331405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3315d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3316d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3317d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3318d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3319d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3320d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3321d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3322d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3323d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3324d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3325d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3326d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3327d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3328d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3329d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3330d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3331d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3332d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3333d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3334d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3335ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3336ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3337319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3338ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3339ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 334005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 334105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 334205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 33431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 334405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 334505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 334605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 334705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 334805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 33491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 33503498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 33513498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33523498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 33533498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 33543498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 33551a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 33561a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 33573498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 33581a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 33591a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 33601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 33613498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 33621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 3363f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 3364f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall false, false) { } 33653498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3366d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3367d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3368d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3369d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 33701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 33713498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 33723498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 33733498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 33743498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33753498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 33763498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 33773498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 33783498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33793498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 33803498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 33811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 338205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 338305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 33842ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33852ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 33862ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 33872ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 33882ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 33892ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33902ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 33911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 33922ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 33932ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33942ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 339537bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 33961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33972ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 33981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 34002ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 34012ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 34022ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 34031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 34052ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 34062ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 34072ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 34082ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 340983ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 34101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34112ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 34122ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 34132ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34142ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 34152ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 34161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 34172ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 34181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 34192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 34202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 34211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 34232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 34242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 342537bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 342660adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 34273397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 34282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 34292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34314eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 34324eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 34334eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 34344eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3435a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3436a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3437a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3438a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3439a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 344073525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 344173525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 344273525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3443a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3444a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3445d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3446a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3447a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3448f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 3449f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 34500943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 34510943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 3452f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall base->isTypeDependent(), base->isValueDependent()), 3453d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 34541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3455d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3456d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3457d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3458d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3459a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3460a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3461d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3462d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3463d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3464d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3465d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3466d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3467d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3468d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3469a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3470a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 34711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3472a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3473a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3474a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 34751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3476a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3477a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3478a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 34791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3480a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 3481a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3482a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 34831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34842140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 34852140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 34862140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 34871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 34891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3490a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3491a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 34921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3493a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 3494a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 3495a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 3496a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3497a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3498a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 349956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 35009c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 35014eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 350256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 350356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 3504b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 35054eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3506b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 3507f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 3508f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ty->isDependentType(), false), 3509b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 35109c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 351184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 351284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 351384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3514d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 351556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 351684af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 351784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 351856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 351956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 352056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 352156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 35229c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 35239c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 352456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 35259c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 35269c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 352756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 352856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 352956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 3530b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 35315b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 3532b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 353384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 3534b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 35351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 35369c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 35374eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 35384eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 35391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35404eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 35414eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 35424eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 35434eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 35441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35454eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 35464eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 35474eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 35481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 35494eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 35507d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 35517d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 355289f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Stmt *CopyConstructorVal; 35534eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 35542333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Fix type/value dependence! 3555f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall BlockDeclRefExpr(ValueDecl *d, QualType t, ExprValueKind VK, 3556f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, bool ByRef, bool constAdded = false, 355784ca008a462b515f63871253f494d53c9190363cFariborz Jahanian Stmt *copyConstructorVal = 0) 3558f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockDeclRefExprClass, t, VK, OK_Ordinary, 3559f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall (!t.isNull() && t->isDependentType()), false), 356052bc56a296b11b4fc6bf5ddf4ded5262f6484bdbFariborz Jahanian D(d), Loc(l), IsByRef(ByRef), 356189f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian ConstQualAdded(constAdded), CopyConstructorVal(copyConstructorVal) {} 356294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 356394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 356494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 356594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 356694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 35671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35684eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 35694eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 357094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 357194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 357294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 357394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 357494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 35754eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 35761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35774eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 357894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 35791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35807d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 35817d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 358289f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian 358389f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian const Expr *getCopyConstructorExpr() const 358489f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 358589f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Expr *getCopyConstructorExpr() 358689f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 358789f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian void setCopyConstructorExpr(Expr *E) { CopyConstructorVal = E; } 358894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 35891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 35901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 35914eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 35924eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 35931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35944eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 35954eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 35964eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 35974eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 35984eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 35997cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 36007cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// fixed type and value class. These don't correspond to concrete 36017cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// syntax; instead they're used to express operations (usually copy 36027cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// operations) on values whose source is generally obvious from 36037cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// context. 36047cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCallclass OpaqueValueExpr : public Expr { 36057cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall friend class ASTStmtReader; 36067cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCallpublic: 3607f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall OpaqueValueExpr(QualType T, ExprValueKind VK, ExprObjectKind OK = OK_Ordinary) 3608f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 3609f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall T->isDependentType(), T->isDependentType()) { 36107cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall } 36117cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 36127cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall explicit OpaqueValueExpr(EmptyShell Empty) 36137cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall : Expr(OpaqueValueExprClass, Empty) { } 36147cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 36157cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual SourceRange getSourceRange() const; 36167cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual child_iterator child_begin(); 36177cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual child_iterator child_end(); 36187cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 36197cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall static bool classof(const Stmt *T) { 36207cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall return T->getStmtClass() == OpaqueValueExprClass; 36217cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall } 36227cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall static bool classof(const OpaqueValueExpr *) { return true; } 36237cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall}; 36247cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 36255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 36265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 36275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3628