Expr.h revision db600c330a37b1c3ab4533310729910ee188f900
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" 205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/APSInt.h" 21525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner#include "llvm/ADT/APFloat.h" 223b8d116703db8018f855cbb4733ace426422623bNate Begeman#include "llvm/ADT/SmallVector.h" 23c5ae899b4bbf65488445316c63168079177db0edSteve Naroff#include <vector> 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 26590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 27c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 28c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 29c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 30c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 318e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 32c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 3356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 3488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 3588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 3688a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 43898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 44898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// TypeDependent - Whether this expression is type-dependent 45898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.expr]). 46898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool TypeDependent : 1; 47898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 48898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// ValueDependent - Whether this expression is value-dependent 49898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.constexpr]). 50898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool ValueDependent : 1; 51898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 53898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: Eventually, this constructor should go away and we should 54898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // require every subclass to provide type/value-dependence 55898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // information. 56898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(StmtClass SC, QualType T) 57b3eef68111ffc220e449be96da1747998c057790Douglas Gregor : Stmt(SC), TypeDependent(false), ValueDependent(false) { 5883233a4b7c2bc7b531ffa3b33fdd1cd8138373b6Douglas Gregor setType(T); 5983233a4b7c2bc7b531ffa3b33fdd1cd8138373b6Douglas Gregor } 60898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 61898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(StmtClass SC, QualType T, bool TD, bool VD) 62b3eef68111ffc220e449be96da1747998c057790Douglas Gregor : Stmt(SC), TypeDependent(TD), ValueDependent(VD) { 63898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 64898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 65898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 660b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 670b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 680b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 69f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregorpublic: 70f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 71f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor void setType(QualType t) { 729d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 739d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 749d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 759d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 769d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 779d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 789d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 79f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor assert((TR.isNull() || !TR->isReferenceType()) && 808320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 81f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 82f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor TR = t; 839d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 8477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 85898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 86898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 87898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 88898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent. 89898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 90898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 91898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 92898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isValueDependent() const { return ValueDependent; } 93898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 940b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 950b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValueDependent(bool VD) { ValueDependent = VD; } 960b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 97898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 98898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 99898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<typename T> 104898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 105898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 106898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 107898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isTypeDependent() const { return TypeDependent; } 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1100b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1110b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setTypeDependent(bool TD) { TypeDependent = TD; } 1120b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 122026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 123026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 124026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 125026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 126026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 127026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceRange &R2) const; 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 13808ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 144fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 14586f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 14686f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_MemberFunction 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 14828be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and if it is a structure or union, does not have any member (including, 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 15544e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 15644e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 15744e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 15844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 163fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 165ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1684f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1695daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 170ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 17186f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 17286f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_MemberFunction 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 17444e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 17544e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17727c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor bool isBitField(); 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 179cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar /// getIntegerConstantExprValue() - Return the value of an integer 180cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar /// constant expression. The expression must be a valid integer 181cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar /// constant expression as determined by isIntegerConstantExpr. 182cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar llvm::APSInt getIntegerConstantExprValue(ASTContext &Ctx) const { 1838070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 184cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar bool success = isIntegerConstantExpr(X, Ctx); 185a5d1cb7ef3f0780540e7fd7180399fd220ef0210Daniel Dunbar success = success; 186cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar assert(success && "Illegal argument to getIntegerConstantExpr"); 187cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar return X; 188cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar } 189cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 194590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 195590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 1972d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar bool isIntegerConstantExprInternal(llvm::APSInt &Result, ASTContext &Ctx, 1982d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar SourceLocation *Loc = 0, 1992d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar bool isEvaluated = true) const; 200590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 2018070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 202590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 204c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 205c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 206c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman bool isConstantInitializer(ASTContext &Ctx) const; 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 20994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 2102d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 21194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 21294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 21394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 21494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 21594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 21694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 21794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 21894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 21994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 22094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 22194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 22294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 22394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 22494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 22594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 22694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 22794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 22894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 22994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 23094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 23194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 2326ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 233019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 234019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 235019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 2365b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 2375b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 2386ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 23945b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 24045b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 241c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 24251fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 24351fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 24451fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 24551fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 2461b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson /// EvaluateAsLValue - Evaluate an expression to see if it's a valid LValue. 2471b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 2481b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 249efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 250efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 251efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 252efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson bool isNullPointerConstant(ASTContext &Ctx) const; 253efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 2542e5f54aa1dd15a62c34a9d1d24a5a0692f43934aTed Kremenek /// hasGlobalStorage - Return true if this expression has static storage 2554cc627111453b75519d5130b57e06256da7b00e8Chris Lattner /// duration. This means that the address of this expression is a link-time 2564cc627111453b75519d5130b57e06256da7b00e8Chris Lattner /// constant. 2572e5f54aa1dd15a62c34a9d1d24a5a0692f43934aTed Kremenek bool hasGlobalStorage() const; 25844baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian 25944baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 26044baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// write barrier. 26144baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian bool isOBJCGCCandidate() const; 2624e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek 2634e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 2644e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// its subexpression. If that subexpression is also a ParenExpr, 2654e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 2664e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 2674e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek Expr* IgnoreParens(); 26856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 26956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 27027c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 27156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 2724e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek 273ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 274ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 275ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 276ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 277ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner 2784e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek const Expr* IgnoreParens() const { 2794e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 2804e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 28156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 28256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 28356f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 284ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 285ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 286ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 287ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner 288898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 289898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 290898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer T->getStmtClass() <= lastExprConstant; 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 2962e7d352dbec06755105237afba183492d31d03cbTed Kremenek 297e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static inline Expr* Create(llvm::Deserializer& D, ASTContext& C) { 298e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop return cast<Expr>(Stmt::Create(D, C)); 2992e7d352dbec06755105237afba183492d31d03cbTed Kremenek } 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3025549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 3035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 3108e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor NamedDecl *D; 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 3129e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 3139e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidisprotected: 3141a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // FIXME: Eventually, this constructor will go away and all subclasses 3151a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // will have to provide the type- and value-dependent flags. 3168e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l) : 3179e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis Expr(SC, t), D(d), Loc(l) {} 3189e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 3191a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l, bool TD, 3201a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor bool VD) : 3211a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor Expr(SC, t, TD, VD), D(d), Loc(l) {} 3221a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 324898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: Eventually, this constructor will go away and all clients 325898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // will have to provide the type- and value-dependent flags. 3268e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l) : 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr(DeclRefExprClass, t), D(d), Loc(l) {} 328898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 329898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l, bool TD, bool VD) : 330898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(DeclRefExprClass, t, TD, VD), D(d), Loc(l) {} 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3320b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty declaration reference expression. 3330b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit DeclRefExpr(EmptyShell Empty) 3340b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(DeclRefExprClass, Empty) { } 3350b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 3368e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor NamedDecl *getDecl() { return D; } 3378e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor const NamedDecl *getDecl() const { return D; } 338904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor void setDecl(NamedDecl *NewD) { D = NewD; } 339904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 3409e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 3410b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 3425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 3435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 3459e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis return T->getStmtClass() == DeclRefExprClass || 3461a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor T->getStmtClass() == CXXConditionDeclExprClass || 3471a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor T->getStmtClass() == QualifiedDeclRefExprClass; 3485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 35077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 35177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 35277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 35377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 3542dc9ac73a8a34cabf261a81a1653d7379065ac61Ted Kremenek 355ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 356e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static DeclRefExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 359d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 360d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 361227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 362227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 363227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 364227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 365cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor PrettyFunction 366227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 367227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 368227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 369227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 370227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 371227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 372d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 373d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner : Expr(PredefinedExprClass, type), Loc(l), Type(IT) {} 374227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 37517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 37617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor explicit PredefinedExpr(EmptyShell Empty) 37717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 37817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 379227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 38017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 38117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 38217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 38317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 38417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 385227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 386227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 387227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson static bool classof(const Stmt *T) { 388d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner return T->getStmtClass() == PredefinedExprClass; 389227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 390d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 39177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 39277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 39377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 39477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 3951ba485e582edfc8636afc25a6d7453c869530688Ted Kremenek 396ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 397d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static PredefinedExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 398227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 399227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 4015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 4055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 4065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 4075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(IntegerLiteralClass, type), Value(V), Loc(l) { 4085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 4095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 410a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 4110b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty integer literal. 4120b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit IntegerLiteral(EmptyShell Empty) 4130b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(IntegerLiteralClass, Empty) { } 4140b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 415a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson IntegerLiteral* Clone(ASTContext &C) const; 416a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 420313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 421313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 422313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 4230b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(const llvm::APInt &Val) { Value = Val; } 4240b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 4250b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == IntegerLiteralClass; 4285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 43077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 43177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 43277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 43377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4342dc9ac73a8a34cabf261a81a1653d7379065ac61Ted Kremenek 435ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 436e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static IntegerLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 4375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 4405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 4415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 442c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 4435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 445c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 446c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner : Expr(CharacterLiteralClass, type), Value(value), Loc(l), IsWide(iswide) { 4475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4480b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4490b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 4500b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 4510b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4522eadfb638eb1bb6ccfd6fd0453e764d47e27eed9Chris Lattner SourceLocation getLoc() const { return Loc; } 453c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 4542eadfb638eb1bb6ccfd6fd0453e764d47e27eed9Chris Lattner 4555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 4565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 4585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4590b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 4600b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 4610b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 4620b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == CharacterLiteralClass; 4655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 46777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 46877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 46977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 47077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4717338a8299ec393eaf6bb580b5ef9ab2b08b5bd11Ted Kremenek 472ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 473e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static CharacterLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 4745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 477525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner llvm::APFloat Value; 478720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 4795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 4805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 481720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek FloatingLiteral(const llvm::APFloat &V, bool* isexact, 482720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 483720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek : Expr(FloatingLiteralClass, Type), Value(V), IsExact(*isexact), Loc(L) {} 4845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 48517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 48617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor FloatingLiteral(EmptyShell Empty) 48717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(FloatingLiteralClass, Empty), Value(0.0) { } 48817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 489c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner const llvm::APFloat &getValue() const { return Value; } 49017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setValue(const llvm::APFloat &Val) { Value = Val; } 49117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 492720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 49317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 494c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 495da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 496da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 497da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 498da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 499da8249e57f3badecf925571881fe57243935c6c1Chris Lattner 50017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 50117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 50217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 5065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == FloatingLiteralClass; 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 50977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 51077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 51177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 51277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 513612c9b9ca73593b3194866c9e1a51554db9752e7Ted Kremenek 514ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 515e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static FloatingLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 5165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5185d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 5195d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 5205d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 5215d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 5225d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 5235d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 5245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 5255d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 5265d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 5275d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner : Expr(ImaginaryLiteralClass, Ty), Val(val) {} 5285d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 5295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 5305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 5315d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 5325d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 5335d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const Stmt *T) { 5345d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner return T->getStmtClass() == ImaginaryLiteralClass; 5355d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 5365d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 5375d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 5385d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 5395d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 5405d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 5411c72de1be77fc43cc27e9bf1cbfe7bd25bee2f81Ted Kremenek 542ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 543e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static ImaginaryLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 5445d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 5455d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 546e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 547e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 548e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 549a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 550c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 551c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 552690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 553690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 5548bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 555690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 556c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 557c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 558c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 559c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 560c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 561c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 566726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 567726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 5682085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 5692085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner StringLiteral(QualType Ty) : Expr(StringLiteralClass, Ty) {} 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 5712085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 5722085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 5732085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 5742085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 575a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 5762085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 5772085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 5782085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 5792085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 5802085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 5812085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 5822085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 583a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 584a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson StringLiteral* Clone(ASTContext &C) const; 585726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner void Destroy(ASTContext &C); 5865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 5908d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 59133fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff for (unsigned i = 0; i < getByteLength(); ++i) 5928d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff if (!isascii(getStrData()[i]) || !getStrData()[i]) 59333fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 59433fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 59533fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 596726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 597726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 598726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 599726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner 600726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 601726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 602726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 603726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 604b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner 605b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 606b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 607b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 610726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 6135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == StringLiteralClass; 6145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 61677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 61777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 61877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 61977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6207febad7377c04607aa2c744d58af61e1abea6250Ted Kremenek 621ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 622e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static StringLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 6295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 632898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 633898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor val->isTypeDependent(), val->isValueDependent()), 634898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 6355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 636c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 637c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor explicit ParenExpr(EmptyShell Empty) 638c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 639c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 6405549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 6415549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 642c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 643c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 644866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 6455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 646313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 647313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 648c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 649313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 650313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 651313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 652c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 653313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 6545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 6555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ParenExprClass; 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 65877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 65977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 66077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 66177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6629eea2ca5f2cb5d77569274702b5b06273e426dc2Ted Kremenek 663ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 664e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static ParenExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 6655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6680518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 6690518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 671dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 672dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 673dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 674dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 675dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 676dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 677dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 67873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 67973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// subexpression is a compound literal with the various MemberExpr and 68073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// ArraySubscriptExpr's applied to it. 68173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 6835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 68413d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 6895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 6915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 69273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner Extension, // __extension__ marker. 69373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner OffsetOf // __builtin_offsetof 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 6965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 7029103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 7039103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isTypeDependent() && opc != OffsetOf, 7049103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isValueDependent()), 7059103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor Val(input), Opc(opc), Loc(l) {} 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 7085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 7142085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 7152085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PostInc || Op == PostDec; 7162085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 7175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7185a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 7192085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 7202085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PreInc || Op == PreDec; 7212085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 7225a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 7235a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek bool isPrefix() const { return isPrefix(Opc); } 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 7255d826b82936beb2c32dd02460332ba8035192c65Ted Kremenek bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 7265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 7275a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson bool isOffsetOfOp() const { return Opc == OffsetOf; } 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 7315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 7325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 734bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 735bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 736bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 737bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 738bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 739bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 740bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 741bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == UnaryOperatorClass; 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 75477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 75577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 75677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 75777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7581049436d4b53d928b555f7381bc1639dd302bbc7Ted Kremenek 759ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 760e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static UnaryOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7630518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 7640518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 7650518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 7660518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 7670518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 768d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 769d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl void *Ty; 770d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 771d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 7725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 7735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 774ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SizeOfAlignOfExpr(bool issizeof, QualType T, 7750518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 7760518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 7772850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl Expr(SizeOfAlignOfExprClass, resultType, 778ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 7792850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 780ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor T->isDependentType()), 781ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 782ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ty = T.getAsOpaquePtr(); 783ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 784ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 785ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SizeOfAlignOfExpr(bool issizeof, Expr *E, 786ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 787ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 788ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Expr(SizeOfAlignOfExprClass, resultType, 789ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 790ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 791ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 792ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 793ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 794d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 7950518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 7969048891ff983d0681c116c6e8f1073aa31bdd6e8Daniel Dunbar virtual void Destroy(ASTContext& C); 7979048891ff983d0681c116c6e8f1073aa31bdd6e8Daniel Dunbar 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 7990518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 8000518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 8010518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 802d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return QualType::getFromOpaquePtr(Argument.Ty); 8030518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 804caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 8050518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 806d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 8070518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 808caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 809caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 810caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 811caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner 8120518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 8130518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 8140518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 8150518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 8160518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 8170518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 81876e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 819866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 820866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 821866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 822866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 8235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 8250518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return T->getStmtClass() == SizeOfAlignOfExprClass; 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8270518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 82877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 82977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 83077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 83177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 832ea2fe9b435e1b55135de32dcac97366554706ac4Ted Kremenek 833ea2fe9b435e1b55135de32dcac97366554706ac4Ted Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 8340518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static SizeOfAlignOfExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 84377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 8445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8472324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 84873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 8492850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl : Expr(ArraySubscriptExprClass, t, 8502850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 8512850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 8522850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 85373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 85473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 85573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8572324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 8582324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 8592324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 8602324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 8612324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 86233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 86333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 86433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 86533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 8665549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 8675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 86877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 8695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 8705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 8712324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 87277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getBase() { 8735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 87477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 87577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 8762324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek const Expr *getBase() const { 8775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 8782324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 8792324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 88077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getIdx() { 8815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 8822324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 8832324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 88477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 8855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 88677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 888866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 88977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 891866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 892026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 8935cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ArraySubscriptExprClass; 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 89977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 90077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 90177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 90277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 90396fa54fc6dc7f4c8dad1fb22fc7fc4f4d775d6c0Ted Kremenek 904ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 905e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static ArraySubscriptExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 909b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 910b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 911b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 912b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// results in a function call. For example, CXXOperatorCallExpr is 913b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 914b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 91677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 9175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 920d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 921d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek // This version of the ctor is for deserialization. 922b4609806e9232593ece09ce08b630836e825865cDouglas Gregor CallExpr(StmtClass SC, Stmt** subexprs, unsigned numargs, QualType t, 923d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek SourceLocation rparenloc) 924b4609806e9232593ece09ce08b630836e825865cDouglas Gregor : Expr(SC,t), SubExprs(subexprs), 925d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek NumArgs(numargs), RParenLoc(rparenloc) {} 926b4609806e9232593ece09ce08b630836e825865cDouglas Gregor 927b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 928b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 929668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 930668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek QualType t, SourceLocation rparenloc); 931d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 933668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 935668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 936668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek ~CallExpr() {} 937668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 938668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek void Destroy(ASTContext& C); 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9405549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 9415549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 94218b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 9515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 9555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 957668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 958668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek // FIXME: Why is this needed? Why not just create the CallExpr with the 959668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek // corect number of arguments? It makes the ASTs less brittle. 960934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 961934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 962934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 963934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 964934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 965d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 966668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek // FIXME: It would be great to just get rid of this. There is only one 967668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek // callee of this method, and it probably could be refactored to not use 968668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek // this method and instead just create a CallExpr with the right number of 969668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek // arguments. 970d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 971d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 972d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 9738189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 974d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 9755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 9765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 9775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 978d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 979d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 9805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 9815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 982d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 9855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 987cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 988cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 9893c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 990cb888967400a03504c88acedd5248d6778a82f46Chris Lattner 991d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 992866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 993866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 99477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 998b4609806e9232593ece09ce08b630836e825865cDouglas Gregor return T->getStmtClass() == CallExprClass || 99988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor T->getStmtClass() == CXXOperatorCallExprClass || 100088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor T->getStmtClass() == CXXMemberCallExprClass; 10015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 100388a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXOperatorCallExpr *) { return true; } 100488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXMemberCallExpr *) { return true; } 100588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 100677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 100777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 100877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 1009d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 1010ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1011b4609806e9232593ece09ce08b630836e825865cDouglas Gregor static CallExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C, 1012b4609806e9232593ece09ce08b630836e825865cDouglas Gregor StmtClass SC); 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1015ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 1018ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1019ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 10205549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 1021ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1022ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1023ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 102486f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *MemberDecl; 1025ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1026ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 1028ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1029ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 1030ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner bool IsArrow; 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 103286f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MemberExpr(Expr *base, bool isarrow, NamedDecl *memberdecl, SourceLocation l, 1033510190777c4bd53e960eea4665b204778fec1b64Eli Friedman QualType ty) 1034510190777c4bd53e960eea4665b204778fec1b64Eli Friedman : Expr(MemberExprClass, ty), 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow) {} 1036510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 103788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 10385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 103957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 104057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 104157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 104257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 104357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 104486f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *getMemberDecl() const { return MemberDecl; } 104588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setMemberDecl(NamedDecl *D) { MemberDecl = D; } 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 1047ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1048ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1049ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1050026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getBase()->getLocStart(), MemberLoc); 10545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1055866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 10565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 10575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == MemberExprClass; 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 10621237c673c07f9d827129ba02720108816abde562Ted Kremenek 10631237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 10641237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 10651237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1066bd57e7c4754c0ce5d7d460041c8fd613e45c4319Ted Kremenek 1067bd57e7c4754c0ce5d7d460041c8fd613e45c4319Ted Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1068e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static MemberExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1071aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// CompoundLiteralExpr - [C99 6.5.2.5] 1072aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1073aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 10740fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 10750fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 10760fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 10770fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 10785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1079e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1080aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 1081a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner CompoundLiteralExpr(SourceLocation lparenloc, QualType ty, Expr *init, 1082a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool fileScope) 1083a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(CompoundLiteralExprClass, ty), LParenLoc(lparenloc), Init(init), 1084a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner FileScope(fileScope) {} 1085aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 10865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 10875549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1088e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1089e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1090aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 10910fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 10920fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner 109373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 10940fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 10950fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 10960fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 10970fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 109873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 10990fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 110073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1101aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 1102aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const Stmt *T) { 1103aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff return T->getStmtClass() == CompoundLiteralExprClass; 1104aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1105aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 11061237c673c07f9d827129ba02720108816abde562Ted Kremenek 11071237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 11081237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 11091237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 11104b7d9ca9fd65a5a68e907b1b7effe33bf1e93629Ted Kremenek 11114b7d9ca9fd65a5a68e907b1b7effe33bf1e93629Ted Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1112e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static CompoundLiteralExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1113aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1114aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 111549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 111649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 111749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 111849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 11190835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 11200835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 11210835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 11220835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis CastExpr(StmtClass SC, QualType ty, Expr *op) : 1123898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 1124898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 1125898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 1126898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 1127898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 1128898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 1129898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType() || (op && op->isValueDependent())), 1130898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Op(op) {} 11310835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 1132087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 1133087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor CastExpr(StmtClass SC, EmptyShell Empty) 1134087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : Expr(SC, Empty) { } 1135087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 11360835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 11370835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 11380835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 1139087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 1140087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 11410835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const Stmt *T) { 11429d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 11439d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 11449d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 11459d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 11466eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ImplicitCastExprClass && SC <= CStyleCastExprClass) 11470835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return true; 11489d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 11499d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 11500835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 11510835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 11520835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 11530835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 11540835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 11550835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 11560835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 11570835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 115849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 115949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 116049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 116149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 116249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 1163bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 1164bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 1165bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// an lvalue. For example: 1166bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 1167bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 1168bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 1169bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 1170bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// void f(Derived d) { 1171bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// Base& b = d; // initializer is an ImplicitCastExpr to an lvalue of type Base 1172bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 1173bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 11740835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 1175eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// LvalueCast - Whether this cast produces an lvalue. 1176eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool LvalueCast; 1177eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 117849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffpublic: 1179eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor ImplicitCastExpr(QualType ty, Expr *op, bool Lvalue) : 1180b3eef68111ffc220e449be96da1747998c057790Douglas Gregor CastExpr(ImplicitCastExprClass, ty, op), LvalueCast(Lvalue) { } 118190045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1182087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 1183087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor explicit ImplicitCastExpr(EmptyShell Shell) 1184087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : CastExpr(ImplicitCastExprClass, Shell) { } 1185087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 1186087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 11870835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 11880835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 11890835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 119090045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1191eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// isLvalueCast - Whether this cast produces an lvalue. 1192eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool isLvalueCast() const { return LvalueCast; } 1193eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 1194eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// setLvalueCast - Set whether this cast produces an lvalue. 1195eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor void setLvalueCast(bool Lvalue) { LvalueCast = Lvalue; } 1196eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 119749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const Stmt *T) { 119849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff return T->getStmtClass() == ImplicitCastExprClass; 119949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 120049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 12011237c673c07f9d827129ba02720108816abde562Ted Kremenek 1202ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1203e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static ImplicitCastExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 120449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 120549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 120649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 120749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// code. 120849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 120949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 121049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 121149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 121249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 121349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 121549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 121649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 121749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 121849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 121949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 122049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// expression will be an lvalue. The reference type, however, will 122149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// not be used as the type of the expression. 12220835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 122349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// TypeAsWritten - The type that this expression is casting to, as 122449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// written in the source code. 122549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType TypeAsWritten; 122649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 122749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 12288320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar ExplicitCastExpr(StmtClass SC, QualType exprTy, Expr *op, QualType writtenTy) 12298320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar : CastExpr(SC, exprTy, op), TypeAsWritten(writtenTy) {} 123049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 1231db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 1232db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor ExplicitCastExpr(StmtClass SC, EmptyShell Shell) 1233db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : CastExpr(SC, Shell) { } 1234db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 123549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 123649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 123749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 123849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType getTypeAsWritten() const { return TypeAsWritten; } 1239db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setTypeAsWritten(QualType T) { TypeAsWritten = T; } 124049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 124149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const Stmt *T) { 12429d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 12436eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ExplicitCastExprClass && SC <= CStyleCastExprClass) 12449d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 12459d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 124649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor return true; 12479d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 12489d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 124949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 125049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 125149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 125249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 12536eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 125449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 125549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 12566eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 1257b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 1258b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 12595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12606eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor CStyleCastExpr(QualType exprTy, Expr *op, QualType writtenTy, 1261b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation l, SourceLocation r) : 1262b2f9e516327310d95840d442416084508f80c183Steve Naroff ExplicitCastExpr(CStyleCastExprClass, exprTy, op, writtenTy), 1263b2f9e516327310d95840d442416084508f80c183Steve Naroff LPLoc(l), RPLoc(r) {} 126449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 1265db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 1266db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor explicit CStyleCastExpr(EmptyShell Shell) 1267db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : ExplicitCastExpr(CStyleCastExprClass, Shell) { } 1268db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1269b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 1270db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 1271db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1272b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 1273db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 1274db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 1276b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 12775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 12796eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor return T->getStmtClass() == CStyleCastExprClass; 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12816eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 12829971c9ace70624987cd74645a75f4bfbc05afdf2Ted Kremenek 1283ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 12846eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static CStyleCastExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 12855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12873fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 12883fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 12893fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 12903fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 12913fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 12923fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 12933fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 12943fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 12953fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 12963fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 12973fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 12983fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 12993fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 13003fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 13013fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 13023fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 13033fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 13043fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 13055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 13065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 130903d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 1310224605064a4ef87d1c3d35ad1cb363f8b534012bSebastian Redl PtrMemD, PtrMemI, // [C++ 5.5] Pointer-to-member operators. 13115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 13135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 13145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 13155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 13165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 13175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 13205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 13215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 13225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 13235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 13245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 13255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 13265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 13275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 13285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 132917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 133017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 13315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 133217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner Opcode Opc; 133317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc; 133417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerpublic: 13355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 133617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 133717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 1338898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 1339898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 1340898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent()), 1341898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 13421237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 13431237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 13445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isCompoundAssignmentOp() && 13455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 13465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1348db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 1349db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor explicit BinaryOperator(EmptyShell Empty) 1350db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : Expr(BinaryOperatorClass, Empty), Opc(Comma) { } 1351db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 135217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 1353db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 1354db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 13555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 1356db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 1357db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 13585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1359db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 13605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1361db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 1362db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 13635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 13645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 13655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 13685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 13695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 13705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1371063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 1372063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 1373063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 1374063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 1375063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1376063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 1377063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1378063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 13795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 13805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 13815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 13825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftOp() const { return Opc == Shl || Opc == Shr; } 13835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isBitwiseOp() const { return Opc >= And && Opc <= Or; } 1384f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1385f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isRelationalOp(Opcode Opc) { return Opc >= LT && Opc <= GE; } 1386f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isRelationalOp() const { return isRelationalOp(Opc); } 1387f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1388f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isEqualityOp(Opcode Opc) { return Opc == EQ || Opc == NE; } 1389f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isEqualityOp() const { return isEqualityOp(Opc); } 1390f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1391f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isLogicalOp(Opcode Opc) { return Opc == LAnd || Opc == LOr; } 1392f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isLogicalOp() const { return isLogicalOp(Opc); } 1393f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 13945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 13955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 13965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 13975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1398eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner static bool classof(const Stmt *S) { 1399eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == BinaryOperatorClass || 1400eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner S->getStmtClass() == CompoundAssignOperatorClass; 14015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 14031237c673c07f9d827129ba02720108816abde562Ted Kremenek 14041237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 14051237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 14061237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 14072dc9ac73a8a34cabf261a81a1653d7379065ac61Ted Kremenek 1408ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1409e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static BinaryOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 14101237c673c07f9d827129ba02720108816abde562Ted Kremenek 14115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 141217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 141317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation oploc, bool dead) 141417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : Expr(CompoundAssignOperatorClass, ResTy), Opc(opc), OpLoc(oploc) { 14151237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 14161237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 14175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 14215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 14225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 14235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 14245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 14255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 14265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 1427ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 1428ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 14295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 1431ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 1432ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 143317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 143417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 1435ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 1436ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 14375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isCompoundAssignmentOp() && 14385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 14395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1441ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 1442ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 1443ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 1444ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 1445ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 14465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 14485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *S) { 1449eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == CompoundAssignOperatorClass; 14505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 145183efb151a0c1df8cb8fb25d6dbb6c0f12f07f60aTed Kremenek 1452ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1453e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static CompoundAssignOperator* CreateImpl(llvm::Deserializer& D, 1454e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop ASTContext& C); 14555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 14585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 14595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 14605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 14611237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 14625549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 14635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConditionalOperator(Expr *cond, Expr *lhs, Expr *rhs, QualType t) 1465898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 1466898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 1467898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 1468898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 1469898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 1470898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (cond->isValueDependent() || 1471898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 1472898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (rhs && rhs->isValueDependent()))) { 14731237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 14741237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 14751237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 14761237c673c07f9d827129ba02720108816abde562Ted Kremenek } 14775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1478395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 1479395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 14805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 1481395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1482395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1483395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 1484395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 1485395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 1486395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 1487395a2abf0028968d85958610e393e067885dc14fTed Kremenek // is only evaluated once. 1488395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 14895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 1490395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 1491395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1492395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1493395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 14945549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 1495395a2abf0028968d85958610e393e067885dc14fTed Kremenek 14965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 14975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 14985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 15005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 15015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 15035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ConditionalOperatorClass; 15045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 15061237c673c07f9d827129ba02720108816abde562Ted Kremenek 15071237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 15081237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 15091237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1510aa33763cc3dfa2fcb4fdb3c5b4be0c37f8d8f8e9Ted Kremenek 1511ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1512e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static ConditionalOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 15135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15156481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 15166481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 15175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 15185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 15195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15206481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 15216481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 15226481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner : Expr(AddrLabelExprClass, t), AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 15235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 15255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 15265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 15316481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner return T->getStmtClass() == AddrLabelExprClass; 15325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15336481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 15341237c673c07f9d827129ba02720108816abde562Ted Kremenek 15351237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 15361237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 15371237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1538aa33763cc3dfa2fcb4fdb3c5b4be0c37f8d8f8e9Ted Kremenek 1539ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1540e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static AddrLabelExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 15415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 1542ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1543ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 1544ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 1545ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 1546ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 15475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 1548ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 1549ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 1550d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 1551d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 1552d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(StmtExprClass, T), SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 1553ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 15545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 15555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 1556ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1557ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 1558ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 1559ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 15605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1561026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1562026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 1563026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1564ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 1565ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return T->getStmtClass() == StmtExprClass; 1566ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 1567ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 15681237c673c07f9d827129ba02720108816abde562Ted Kremenek 15691237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 15701237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 15711237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1572aa33763cc3dfa2fcb4fdb3c5b4be0c37f8d8f8e9Ted Kremenek 1573ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1574e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static StmtExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1575ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 1576ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1577d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// TypesCompatibleExpr - GNU builtin-in function __builtin_type_compatible_p. 1578d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 1579d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 1580d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 1581d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 1582d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type1; 1583d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type2; 1584363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 1585d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 1586363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 1587d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType t1, QualType t2, SourceLocation RP) : 1588d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(TypesCompatibleExprClass, ReturnType), Type1(t1), Type2(t2), 1589363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff BuiltinLoc(BLoc), RParenLoc(RP) {} 1590d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 15917f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType1() const { return Type1; } 15927f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType2() const { return Type2; } 1593ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1594d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 1595363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 1596d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1597d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 1598d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff return T->getStmtClass() == TypesCompatibleExprClass; 1599d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1600d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 16011237c673c07f9d827129ba02720108816abde562Ted Kremenek 16021237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 16031237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 16041237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1605d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar 1606d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar virtual void EmitImpl(llvm::Serializer& S) const; 1607d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar static TypesCompatibleExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1608d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 1609d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 1610d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 1611d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 1612d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 1613d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 1614d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 1615d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 1616d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 1617d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 1618d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1619d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 1620d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 1621d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 1622d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 16235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 1624d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 1625d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1626d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 1627d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman ShuffleVectorExpr(Expr **args, unsigned nexpr, 1628d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman QualType Type, SourceLocation BLoc, 1629d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation RP) : 1630d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr(ShuffleVectorExprClass, Type), BuiltinLoc(BLoc), 1631f809e3bd0c3d063f22ba34981072dae306ca9272Ted Kremenek RParenLoc(RP), NumExprs(nexpr) { 1632f809e3bd0c3d063f22ba34981072dae306ca9272Ted Kremenek 16335549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek SubExprs = new Stmt*[nexpr]; 1634d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 1635d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 1636d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1637d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1638d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 1639d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 1640d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1641d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 1642d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return T->getStmtClass() == ShuffleVectorExprClass; 1643d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1644d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 1645d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1646d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman ~ShuffleVectorExpr() { 1647d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman delete [] SubExprs; 1648d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1649d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1650d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 1651d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 1652d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 1653d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 1654d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1655d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 1656d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 1657d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 16585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1659d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1660d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 1661d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 16625549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1663d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1664d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1665dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 1666dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 1667a5d1cb7ef3f0780540e7fd7180399fd220ef0210Daniel Dunbar return getExpr(N+2)->getIntegerConstantExprValue(Ctx).getZExtValue(); 1668d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1669d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1670d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 1671d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 1672d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 1673d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar 1674d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar virtual void EmitImpl(llvm::Serializer& S) const; 1675d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar static ShuffleVectorExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1676d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 1677d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1678d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 1679d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// This AST node is similar to the conditional operator (?:) in C, with 1680d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 16817976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 16827976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 16837976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 16847976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 16857976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 16867976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 1687d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 16881237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 16895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 1690d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 1691d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 1692d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 1693d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation RP) 1694d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff : Expr(ChooseExprClass, t), 16951237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 16961237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 16971237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 16981237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 16991237c673c07f9d827129ba02720108816abde562Ted Kremenek } 17007976932a1c256d447316ffac58e9821417725e34Eli Friedman 17017976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 17027976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 170327437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 17047976932a1c256d447316ffac58e9821417725e34Eli Friedman 17057976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 17067976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 17077976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 17087976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 17097976932a1c256d447316ffac58e9821417725e34Eli Friedman } 17107976932a1c256d447316ffac58e9821417725e34Eli Friedman 17115549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 17125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 17135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 17141237c673c07f9d827129ba02720108816abde562Ted Kremenek 1715d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 1716d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 1717d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 1718d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 1719d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return T->getStmtClass() == ChooseExprClass; 1720d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 1721d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 17221237c673c07f9d827129ba02720108816abde562Ted Kremenek 17231237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 17241237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 17251237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1726d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar 1727d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar virtual void EmitImpl(llvm::Serializer& S) const; 1728d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar static ChooseExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1729d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 1730d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 17312d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 17322d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 17332d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 17342d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 17352d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 17362d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 17372d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 17382d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 17392d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 17402d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 17412d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 17422d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor GNUNullExpr(QualType Ty, SourceLocation Loc) 17432d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor : Expr(GNUNullExprClass, Ty), TokenLoc(Loc) { } 17442d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 17452d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 17462d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 17472d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 17482d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 17492d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 17502d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 17512d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 17522d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return T->getStmtClass() == GNUNullExprClass; 17532d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 17542d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 17552d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 17562d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 17572d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 17582d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 17592d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 17602d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual void EmitImpl(llvm::Serializer& S) const; 17612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static GNUNullExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 17622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 17632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 17647c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson/// VAArgExpr, used for the builtin function __builtin_va_start. 17657c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 17665549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 17677c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 17687c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 17697c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 17707c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson : Expr(VAArgExprClass, t), 17717c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson Val(e), 17727c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 17737c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 17747c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 17755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 17765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 17777c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 17787c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 17797c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 17807c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 17817c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 17827c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 17837c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 17847c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 17857c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 17867c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 17877c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_end(); 1788d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar 1789d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar virtual void EmitImpl(llvm::Serializer& S) const; 1790d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar static VAArgExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 17917c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 17927c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 17934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 17944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 17954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 17964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 17974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 17984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 17994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 18004c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 18014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 1802196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 18034c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 18044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 18054c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 18064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 18074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 18084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 18094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 18104c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 1811196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 18124c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 18134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 18144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 18154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 18164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 18174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 18184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 18193498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 18204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 18214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 18224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 1823196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 18244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 18254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 18264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 18274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 18284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 18294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 183066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 18315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek std::vector<Stmt *> InitExprs; 183266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 1833418f6c7d142e5ff4607f70cd8431d008442bafe9Chris Lattner 18344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 18354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 18364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 18374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 18380bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 18390bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 18400bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 18410bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 1842a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 1843a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 1844a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 1845a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 184666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 184766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson InitListExpr(SourceLocation lbraceloc, Expr **initexprs, unsigned numinits, 18484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation rbraceloc); 184966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 1850c5ae899b4bbf65488445316c63168079177db0edSteve Naroff unsigned getNumInits() const { return InitExprs.size(); } 185166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 185266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson const Expr* getInit(unsigned Init) const { 1853c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 18544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 185566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 185666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 185766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson Expr* getInit(unsigned Init) { 1858c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 18594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 186066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 186166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 18629e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff void setInit(unsigned Init, Expr *expr) { 1863c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 18649e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 18659e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 1866c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 1867fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 1868fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor void reserveInits(unsigned NumInits); 1869fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor 18704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 18714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 18724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 18734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 18744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 18754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 18764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 18774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 18784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 18794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 18804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 18814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 18824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 18834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 18844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 18854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor Expr *updateInit(unsigned Init, Expr *expr); 1886c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 18870bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 18880bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 18890bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 18900bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 18910bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 18920bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 18930bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 18940bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 18950bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 1896c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 1897c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 1898b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 1899b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 1900b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 19019e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff 190287fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 190387fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 19044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 19054c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 19064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 19074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 19084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 19094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 19104c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 1911a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 1912a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor void sawArrayRangeDesignator() { 1913a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor HadArrayRangeDesignator = true; 1914a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 1915a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 191666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 191766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 191866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 191966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 192066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return T->getStmtClass() == InitListExprClass; 192166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 192266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 192366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 192466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 192566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 192666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 19276336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenek 19287fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::iterator iterator; 19297fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::reverse_iterator reverse_iterator; 19307fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek 19317fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator begin() { return InitExprs.begin(); } 19327fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator end() { return InitExprs.end(); } 19337fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 19347fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rend() { return InitExprs.rend(); } 19357fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek 19367fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek // Serailization. 19376336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1938e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static InitListExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 19396336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenek 19406336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenekprivate: 19416336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenek // Used by serializer. 194228a309e387a0a69b0c055c1565aa147fc695f906Chris Lattner InitListExpr() : Expr(InitListExprClass, QualType()) {} 194366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 194466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 194505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 194605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 194705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 194805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 194905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 195005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 195105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 195205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 195305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 195405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 195505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 195605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 195705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 195805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 195905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 196005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 196105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 196205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 196305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 196405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 196505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 196605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 196705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 196805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 196905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 1970eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 197105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 1972eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 197305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 197405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 197505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 197605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 197705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 197805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 197905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 198005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 198105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 198205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor DesignatedInitExpr(QualType Ty, unsigned NumDesignators, 1983eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 198405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs) 198505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Expr(DesignatedInitExprClass, Ty), 1986eeae8f072748affce25ab4064982626361293390Douglas Gregor EqualOrColonLoc(EqualOrColonLoc), GNUSyntax(GNUSyntax), 198705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor NumDesignators(NumDesignators), NumSubExprs(NumSubExprs) { } 198805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 198905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 199005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 199105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 199205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 199305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 199405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 199505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 199605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 199705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 199805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 199905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 200005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 200105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 200205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 200305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 200405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 200505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 200605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 200705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 200805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 200905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 201005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 201105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 201205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 201305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 201405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 201505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 201605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 201705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 201805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned RBracketLoc; 201905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 202005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 202105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 202205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 202305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 202405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 202505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 202605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 202705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 202805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 202905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 203005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 203105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 203205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 203305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 203405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 203505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 203605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 203705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 203805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 203905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 204005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 204105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 204205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 204305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 204405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 204505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 204605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation FieldLoc) 204705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 204805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 204905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 205005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 205105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 205205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 205305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 205405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(unsigned Index, SourceLocation LBracketLoc, 205505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 205605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 205705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 205805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 205905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 206005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 206105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 206205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 206305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 206405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(unsigned Index, SourceLocation LBracketLoc, 206505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 206605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 206705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 206805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 206905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 207005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 207105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 207205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 207305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 207405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 207505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 207605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 207705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 207805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 207905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 208005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 208105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 208205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 208305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 208405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 208505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 208605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 208705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 208805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 208905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 209005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 209105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 209287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 209387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 209487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 209587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 209687f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 209705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 209805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 209905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 210005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 210105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 210205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 210305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 210405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 210505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 210605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 210705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 210805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 210905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 211005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 211105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 211205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 211305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 211405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 211505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 211605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 211705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 211805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 21194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 21204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 21214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 21224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 21234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 21244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 21254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 212605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 212705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 212805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 212905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 213005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 213105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 2132eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 213305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 213405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 213505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 213605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 213705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 213805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 213905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor designators_iterator designators_begin(); 214005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor designators_iterator designators_end(); 214105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 214205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 214305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 214405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 214505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 214605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 214705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 214805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 214905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 215005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 2151eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 2152eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 215305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 215405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 215505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getInit() const { 215605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 215705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 215805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 215905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 216005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 216105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 216205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 216305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 216405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 216505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 216605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return T->getStmtClass() == DesignatedInitExprClass; 216705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 216805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 216905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 217005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 217105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 21723498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_end(); 21733498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 21743498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 21753498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 21763498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 21773498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 21781a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 21791a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 21803498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 21811a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 21821a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 21833498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorclass ImplicitValueInitExpr : public Expr { 21843498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 21853498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor explicit ImplicitValueInitExpr(QualType ty) 21863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor : Expr(ImplicitValueInitExprClass, ty) { } 21873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 21883498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const Stmt *T) { 21893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 21903498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 21913498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 21923498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 21933498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 21943498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 21953498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 21963498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 21973498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 21983498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 219905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_end(); 220005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 220105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 22024eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 22034eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 22044eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 22054eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 2206a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2207a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 2208a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 2209a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 2210a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 221173525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 221273525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 221373525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 2214a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 2215a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 2216a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner IdentifierInfo &Accessor; 2217a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 2218a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 2219a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 2220a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 2221a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(ExtVectorElementExprClass, ty), 2222a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Base(base), Accessor(accessor), AccessorLoc(loc) {} 2223a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2224a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 2225a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 2226a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2227a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner IdentifierInfo &getAccessor() const { return Accessor; } 2228a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2229a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 2230a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 2231a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2232a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 2233a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 2234a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 2235a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2236a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 2237a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 2238a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 2239a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2240a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 2241a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 2242a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 2243a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 22442140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 22452140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 22462140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 22472140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner 2248a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const Stmt *T) { 2249a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return T->getStmtClass() == ExtVectorElementExprClass; 2250a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 2251a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 2252a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2253a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 2254a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 2255a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 2256d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar 2257d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar virtual void EmitImpl(llvm::Serializer& S) const; 2258d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar static ExtVectorElementExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 2259a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 2260a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2261a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 226256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 22639c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 22644eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 226556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 226656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 2267b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 22684eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 2269b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 2270b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump : Expr(BlockExprClass, ty), 2271b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 22729c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 2273d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 227456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 227556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 227656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 227756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 227856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 227956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 22809c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 22819c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 228256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 22839c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 22849c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 228556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 228656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 228756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 2288b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 2289b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// contained inside. 2290b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 2291b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 22924eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const Stmt *T) { 22939c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 22944eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 22954eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 22964eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 22974eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 22984eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 22994eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 230056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 23014eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual void EmitImpl(llvm::Serializer& S) const; 23029c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff static BlockExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 23034eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 23049c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 23054eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 23064eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 23074eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 23084eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *D; 23094eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 23104eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool IsByRef; 23114eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 23124eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef) : 23134eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff Expr(BlockDeclRefExprClass, t), D(d), Loc(l), IsByRef(ByRef) {} 23144eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 23154eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 23164eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 23174eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 23184eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 23194eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 23204eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 23214eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const Stmt *T) { 23224eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff return T->getStmtClass() == BlockDeclRefExprClass; 23234eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 23244eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 23254eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 23264eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 23274eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 23284eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 23294eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 23304eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual void EmitImpl(llvm::Serializer& S) const; 23314eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static BlockDeclRefExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 23324eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 23334eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 23345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 23355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2337