Expr.h revision 9a901bb63990574ff0bcc12ff851d7a71cff8ddb
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]] 13976458501a8963fa11b91c9337a487de6871169b4Sebastian Redl /// - b ? x : y, where x and y are lvalues of suitable types [C++] 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 145fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 14686f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 14786f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_MemberFunction 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 14928be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and if it is a structure or union, does not have any member (including, 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 15644e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 15744e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 15844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 15944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 164fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 166ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1694f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1705daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 171ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 17286f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 17386f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_MemberFunction 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 17544e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 17644e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17827c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor bool isBitField(); 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 184590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 185590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 187590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 1888070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 189590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 191c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 192c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 193c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman bool isConstantInitializer(ASTContext &Ctx) const; 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 19694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 1972d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 19894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 19994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 20094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 20194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 20294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 20394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 20494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 20594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 20694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 20794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 20894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 20994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 21094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 21194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 21294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 21394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 21494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 21594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 21694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 21794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 21894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 2196ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 220019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 221019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 222019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 2235b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 2245b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 2256ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 22645b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 22745b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 228c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 22951fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 23051fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 23151fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 23251fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 2331b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson /// EvaluateAsLValue - Evaluate an expression to see if it's a valid LValue. 2341b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 2351b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 236efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 237efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 238efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 239efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson bool isNullPointerConstant(ASTContext &Ctx) const; 240efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 2412e5f54aa1dd15a62c34a9d1d24a5a0692f43934aTed Kremenek /// hasGlobalStorage - Return true if this expression has static storage 2424cc627111453b75519d5130b57e06256da7b00e8Chris Lattner /// duration. This means that the address of this expression is a link-time 2434cc627111453b75519d5130b57e06256da7b00e8Chris Lattner /// constant. 2442e5f54aa1dd15a62c34a9d1d24a5a0692f43934aTed Kremenek bool hasGlobalStorage() const; 24544baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian 24644baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 24744baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// write barrier. 24844baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian bool isOBJCGCCandidate() const; 2494e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek 2504e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 2514e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// its subexpression. If that subexpression is also a ParenExpr, 2524e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 2534e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 2544e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek Expr* IgnoreParens(); 25556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 25656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 25727c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 25856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 2594e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek 260ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 261ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 262ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 263ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 264ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner 2654e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek const Expr* IgnoreParens() const { 2664e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 2674e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 26856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 26956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 27056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 271ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 272ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 273ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 274ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner 275898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 276898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 277898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 2795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer T->getStmtClass() <= lastExprConstant; 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 2835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 2865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 2885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 2938e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor NamedDecl *D; 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 2959e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 2969e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidisprotected: 2971a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // FIXME: Eventually, this constructor will go away and all subclasses 2981a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // will have to provide the type- and value-dependent flags. 2998e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l) : 3009e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis Expr(SC, t), D(d), Loc(l) {} 3019e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 3021a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l, bool TD, 3031a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor bool VD) : 3041a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor Expr(SC, t, TD, VD), D(d), Loc(l) {} 3051a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 307898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: Eventually, this constructor will go away and all clients 308898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // will have to provide the type- and value-dependent flags. 3098e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l) : 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr(DeclRefExprClass, t), D(d), Loc(l) {} 311898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 312898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l, bool TD, bool VD) : 313898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(DeclRefExprClass, t, TD, VD), D(d), Loc(l) {} 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3150b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty declaration reference expression. 3160b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit DeclRefExpr(EmptyShell Empty) 3170b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(DeclRefExprClass, Empty) { } 3180b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 3198e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor NamedDecl *getDecl() { return D; } 3208e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor const NamedDecl *getDecl() const { return D; } 321904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor void setDecl(NamedDecl *NewD) { D = NewD; } 322904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 3239e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 3240b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 3289e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis return T->getStmtClass() == DeclRefExprClass || 3291a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor T->getStmtClass() == CXXConditionDeclExprClass || 3301a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor T->getStmtClass() == QualifiedDeclRefExprClass; 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 33377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 33477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 33577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 33677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 339d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 340d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 341227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 342227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 343227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 344227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 345cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor PrettyFunction 346227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 347227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 348227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 349227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 350227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 351227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 352d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 353d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner : Expr(PredefinedExprClass, type), Loc(l), Type(IT) {} 354227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 35517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 35617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor explicit PredefinedExpr(EmptyShell Empty) 35717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 35817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 359227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 36017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 36117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 36217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 36317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 36417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 365b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // FIXME: The logic for computing the value of a predefined expr should go 366b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // into a method here that takes the inner-most code decl (a block, function 367b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // or objc method) that the expr lives in. This would allow sema and codegen 368b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // to be consistent for things like sizeof(__func__) etc. 369b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner 370227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 371227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 372227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson static bool classof(const Stmt *T) { 373d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner return T->getStmtClass() == PredefinedExprClass; 374227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 375d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 37677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 37777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 37877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 37977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 380227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 381227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 3825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 3835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 3845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 3855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 3875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 3885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(IntegerLiteralClass, type), Value(V), Loc(l) { 3905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 3915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 392a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 3930b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty integer literal. 3940b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit IntegerLiteral(EmptyShell Empty) 3950b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(IntegerLiteralClass, Empty) { } 3960b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 397a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson IntegerLiteral* Clone(ASTContext &C) const; 398a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 4015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 402313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 403313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 404313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 4050b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(const llvm::APInt &Val) { Value = Val; } 4060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 4070b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == IntegerLiteralClass; 4105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 41277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 41377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 41477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 41577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 421c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 4225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 424c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 425c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner : Expr(CharacterLiteralClass, type), Value(value), Loc(l), IsWide(iswide) { 4265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4270b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4280b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 4290b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 4300b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4312eadfb638eb1bb6ccfd6fd0453e764d47e27eed9Chris Lattner SourceLocation getLoc() const { return Loc; } 432c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 4332eadfb638eb1bb6ccfd6fd0453e764d47e27eed9Chris Lattner 4345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 4355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 4375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4380b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 4390b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 4400b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 4410b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == CharacterLiteralClass; 4445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 44677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 44777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 44877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 44977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 453525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner llvm::APFloat Value; 454720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 4555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 4565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 457720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek FloatingLiteral(const llvm::APFloat &V, bool* isexact, 458720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 459720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek : Expr(FloatingLiteralClass, Type), Value(V), IsExact(*isexact), Loc(L) {} 4605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 46117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 46217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor FloatingLiteral(EmptyShell Empty) 46317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(FloatingLiteralClass, Empty), Value(0.0) { } 46417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 465c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner const llvm::APFloat &getValue() const { return Value; } 46617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setValue(const llvm::APFloat &Val) { Value = Val; } 46717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 468720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 46917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 470c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 471da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 472da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 473da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 474da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 475da8249e57f3badecf925571881fe57243935c6c1Chris Lattner 47617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 47717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 47817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 4794863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // FIXME: The logic for computing the value of a predefined expr should go 4804863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // into a method here that takes the inner-most code decl (a block, function 4814863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // or objc method) that the expr lives in. This would allow sema and codegen 4824863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // to be consistent for things like sizeof(__func__) etc. 4834863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner 4845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 4855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == FloatingLiteralClass; 4885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 49077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 49177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 49277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 49377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4965d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 4975d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 4985d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 4995d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 5005d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 5015d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 5025549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 5035d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 5045d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 5055d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner : Expr(ImaginaryLiteralClass, Ty), Val(val) {} 5065d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 507cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 508cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ImaginaryLiteral(EmptyShell Empty) 509cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 510cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 5115549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 5125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 513cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 514cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 5155d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 5165d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const Stmt *T) { 5175d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner return T->getStmtClass() == ImaginaryLiteralClass; 5185d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 5195d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 5205d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 5215d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 5225d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 5235d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 5245d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 5255d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 526e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 527e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 528e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 529a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 530c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 531c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 532690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 533690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 5348bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 535690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 536c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 537c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 538c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 539c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 540c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 541c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 5425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 5435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 5445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 5455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 546726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 547726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 5482085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 5492085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner StringLiteral(QualType Ty) : Expr(StringLiteralClass, Ty) {} 5505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 5512085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 5522085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 5532085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 5542085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 555a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 5562085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 5572085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 5582085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 5592085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 5602085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 5612085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 5622085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 563a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 564673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 565673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 566673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 567a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson StringLiteral* Clone(ASTContext &C) const; 568726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner void Destroy(ASTContext &C); 5695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 5715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 572673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 573673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 574673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setStrData(ASTContext &C, const char *Str, unsigned Len); 575673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 5765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 577673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 578673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 5798d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 58033fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff for (unsigned i = 0; i < getByteLength(); ++i) 5818d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff if (!isascii(getStrData()[i]) || !getStrData()[i]) 58233fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 58333fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 58433fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 585726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 586726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 587726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 588726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner 589726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 590726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 591726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 592726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 593673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 594673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 595673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 596673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 597673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 598b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 599b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 600b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 603726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == StringLiteralClass; 6075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 60977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 61077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 61177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 61277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 6165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 6175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 6185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 6195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 6205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 622898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 623898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor val->isTypeDependent(), val->isValueDependent()), 624898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 626c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 627c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor explicit ParenExpr(EmptyShell Empty) 628c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 629c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 6305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 6315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 632c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 633c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 634866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 6355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 636313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 637313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 638c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 639313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 640313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 641313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 642c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 643313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 6445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 6455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ParenExprClass; 6465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 64877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 64977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 65077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 65177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6550518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 6560518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 658dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 659dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 660dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 661dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 662dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 663dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 664dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 66573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 66673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// subexpression is a compound literal with the various MemberExpr and 66773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// ArraySubscriptExpr's applied to it. 66873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 67113d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 6725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 6785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 67973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner Extension, // __extension__ marker. 68073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner OffsetOf // __builtin_offsetof 6815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 6835549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 6845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 6899103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 6909103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isTypeDependent() && opc != OffsetOf, 6919103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isValueDependent()), 6929103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor Val(input), Opc(opc), Loc(l) {} 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6940b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 6950b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit UnaryOperator(EmptyShell Empty) 6960b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(UnaryOperatorClass, Empty), Opc(AddrOf) { } 6970b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 6990b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 7000b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 7020b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 7030b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 7060b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 7070b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 7092085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 7102085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PostInc || Op == PostDec; 7112085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7135a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 7142085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 7152085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PreInc || Op == PreDec; 7162085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 7175a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 7185a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek bool isPrefix() const { return isPrefix(Opc); } 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 7205d826b82936beb2c32dd02460332ba8035192c65Ted Kremenek bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 7225a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson bool isOffsetOfOp() const { return Opc == OffsetOf; } 7235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 7265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 7275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 729bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 730bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 731bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 732bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 733bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 734bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 735bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 736bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 7415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == UnaryOperatorClass; 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 74977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 75077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 75177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 75277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7550518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 7560518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 7570518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 7580518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 7590518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 760d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 761d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl void *Ty; 762d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 763d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 766ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SizeOfAlignOfExpr(bool issizeof, QualType T, 7670518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 7680518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 7692850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl Expr(SizeOfAlignOfExprClass, resultType, 770ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 7712850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 772ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor T->isDependentType()), 773ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 774ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ty = T.getAsOpaquePtr(); 775ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 776ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 777ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SizeOfAlignOfExpr(bool issizeof, Expr *E, 778ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 779ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 780ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Expr(SizeOfAlignOfExprClass, resultType, 781ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 782ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 783ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 784ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 785ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 786d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 7870518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 7880b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 7890b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 7900b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 7910b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7929048891ff983d0681c116c6e8f1073aa31bdd6e8Daniel Dunbar virtual void Destroy(ASTContext& C); 7939048891ff983d0681c116c6e8f1073aa31bdd6e8Daniel Dunbar 7945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 7950b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 7960b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7970518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 7980518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 7990518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 800d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return QualType::getFromOpaquePtr(Argument.Ty); 8010518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 802caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 8030518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 804d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 8050518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 806caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 807caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 808caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 8090b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 8110b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(QualType T) { 8120b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor Argument.Ty = T.getAsOpaquePtr(); 8130b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor isType = true; 8140b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 8150b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8160518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 8170518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 8180518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 8190518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 8200518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 8210518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 82276e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 8230b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 8240b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8250b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 8260b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 827866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 828866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 829866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 830866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 8330518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return T->getStmtClass() == SizeOfAlignOfExprClass; 8345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8350518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 83677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 83777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 83877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 83977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 8435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 84877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 8495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8522324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 85373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 8542850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl : Expr(ArraySubscriptExprClass, t, 8552850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 8562850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 8572850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 85873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 85973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 86073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 862cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 863cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 864cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 865cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8662324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 8672324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 8682324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 8692324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 8702324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 87133fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 87233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 87333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 87433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 8755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 8765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 877cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 878cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 8805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 881cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 8822324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 88377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getBase() { 8845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 88577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 88677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 8872324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek const Expr *getBase() const { 8885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 8892324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 8902324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 89177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getIdx() { 8925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 8932324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 8942324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 89577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 8965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 89777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 899866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 90077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 902866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 903026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 904cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 905cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 9065cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ArraySubscriptExprClass; 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 91277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 91377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 91477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 91577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 919b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 920b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 921b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 922b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// results in a function call. For example, CXXOperatorCallExpr is 923b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 924b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 92677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 9275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 930d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 931d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek // This version of the ctor is for deserialization. 932b4609806e9232593ece09ce08b630836e825865cDouglas Gregor CallExpr(StmtClass SC, Stmt** subexprs, unsigned numargs, QualType t, 933d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek SourceLocation rparenloc) 934b4609806e9232593ece09ce08b630836e825865cDouglas Gregor : Expr(SC,t), SubExprs(subexprs), 935d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek NumArgs(numargs), RParenLoc(rparenloc) {} 936b4609806e9232593ece09ce08b630836e825865cDouglas Gregor 937b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 938b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 939668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 940668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek QualType t, SourceLocation rparenloc); 941d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 943668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 9445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 945668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 9461f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 9471f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor CallExpr(ASTContext &C, EmptyShell Empty); 9481f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 949668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek ~CallExpr() {} 950668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 951668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek void Destroy(ASTContext& C); 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9535549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 9545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 95518b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 9635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 9645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 9685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 970668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 971934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 972934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 973934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 974934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 975934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 976d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 977d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 978d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 979d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 9808189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 981d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 9825549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 9835549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 9845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 985d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 986d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 9875549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 9885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 989d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 9905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 9915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 9925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 9935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 994cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 995cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 9963c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 997cb888967400a03504c88acedd5248d6778a82f46Chris Lattner 998d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 9991f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1000866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1001866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 100277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 1006b4609806e9232593ece09ce08b630836e825865cDouglas Gregor return T->getStmtClass() == CallExprClass || 100788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor T->getStmtClass() == CXXOperatorCallExprClass || 100888a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor T->getStmtClass() == CXXMemberCallExprClass; 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 101188a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXOperatorCallExpr *) { return true; } 101288a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXMemberCallExpr *) { return true; } 101388a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 101477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 101577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 101677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1019ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 1022ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1023ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 10245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 1025ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1026ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1027ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 102886f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *MemberDecl; 1029ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1030ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 1032ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1033ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 1034ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner bool IsArrow; 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 103686f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MemberExpr(Expr *base, bool isarrow, NamedDecl *memberdecl, SourceLocation l, 1037510190777c4bd53e960eea4665b204778fec1b64Eli Friedman QualType ty) 1038510190777c4bd53e960eea4665b204778fec1b64Eli Friedman : Expr(MemberExprClass, ty), 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow) {} 1040510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 10411f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty member reference expression. 10421f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor explicit MemberExpr(EmptyShell Empty) : Expr(MemberExprClass, Empty) { } 10431f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 104488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 10455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 104657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 104757e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 104857e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 104957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 105057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 105186f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *getMemberDecl() const { return MemberDecl; } 105288a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setMemberDecl(NamedDecl *D) { MemberDecl = D; } 10531f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 10545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 10551f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 10561f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1057ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1058ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1059026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 10601f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 10615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getBase()->getLocStart(), MemberLoc); 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1065866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == MemberExprClass; 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 10721237c673c07f9d827129ba02720108816abde562Ted Kremenek 10731237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 10741237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 10751237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 10765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1078aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// CompoundLiteralExpr - [C99 6.5.2.5] 1079aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1080aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 10810fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 10820fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 10830fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 10840fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 10855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1086e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1087aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 1088a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner CompoundLiteralExpr(SourceLocation lparenloc, QualType ty, Expr *init, 1089a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool fileScope) 1090a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(CompoundLiteralExprClass, ty), LParenLoc(lparenloc), Init(init), 1091a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner FileScope(fileScope) {} 1092aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 1093ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1094ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1095ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1096ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 10975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 10985549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1099ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1100e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1101e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1102ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1103ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 11040fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1105ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1106ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 110773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 11080fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 11090fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 11100fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 11110fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 111273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 11130fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 111473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1115aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 1116aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const Stmt *T) { 1117aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff return T->getStmtClass() == CompoundLiteralExprClass; 1118aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1119aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 11201237c673c07f9d827129ba02720108816abde562Ted Kremenek 11211237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 11221237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 11231237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1124aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1125aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 112649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 112749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 112849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 112949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 11300835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 11310835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 11320835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 11330835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis CastExpr(StmtClass SC, QualType ty, Expr *op) : 1134898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 1135898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 1136898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 1137898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 1138898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 1139898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 1140898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType() || (op && op->isValueDependent())), 1141898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Op(op) {} 11420835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 1143087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 1144087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor CastExpr(StmtClass SC, EmptyShell Empty) 1145087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : Expr(SC, Empty) { } 1146087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 11470835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 11480835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 11490835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 1150087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 1151087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 11520835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const Stmt *T) { 11539d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 11549d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 11559d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 11569d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 11576eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ImplicitCastExprClass && SC <= CStyleCastExprClass) 11580835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return true; 11599d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 11609d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 11610835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 11620835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 11630835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 11640835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 11650835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 11660835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 11670835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 11680835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 116949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 117049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 117149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 117249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 117349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 1174bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 1175bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 1176bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// an lvalue. For example: 1177bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 1178bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 1179bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 1180bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 1181bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// void f(Derived d) { 1182bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// Base& b = d; // initializer is an ImplicitCastExpr to an lvalue of type Base 1183bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 1184bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 11850835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 1186eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// LvalueCast - Whether this cast produces an lvalue. 1187eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool LvalueCast; 1188eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 118949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffpublic: 1190eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor ImplicitCastExpr(QualType ty, Expr *op, bool Lvalue) : 1191b3eef68111ffc220e449be96da1747998c057790Douglas Gregor CastExpr(ImplicitCastExprClass, ty, op), LvalueCast(Lvalue) { } 119290045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1193087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 1194087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor explicit ImplicitCastExpr(EmptyShell Shell) 1195087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : CastExpr(ImplicitCastExprClass, Shell) { } 1196087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 1197087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 11980835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 11990835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 12000835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 120190045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1202eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// isLvalueCast - Whether this cast produces an lvalue. 1203eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool isLvalueCast() const { return LvalueCast; } 1204eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 1205eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// setLvalueCast - Set whether this cast produces an lvalue. 1206eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor void setLvalueCast(bool Lvalue) { LvalueCast = Lvalue; } 1207eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 120849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const Stmt *T) { 120949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff return T->getStmtClass() == ImplicitCastExprClass; 121049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 121149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 121249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 121349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 121449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 121549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// code. 121649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 121749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 121849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 121949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 122049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 122149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 122349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 122449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 122549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 122649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 122749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 122849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// expression will be an lvalue. The reference type, however, will 122949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// not be used as the type of the expression. 12300835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 123149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// TypeAsWritten - The type that this expression is casting to, as 123249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// written in the source code. 123349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType TypeAsWritten; 123449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 123549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 12368320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar ExplicitCastExpr(StmtClass SC, QualType exprTy, Expr *op, QualType writtenTy) 12378320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar : CastExpr(SC, exprTy, op), TypeAsWritten(writtenTy) {} 123849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 1239db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 1240db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor ExplicitCastExpr(StmtClass SC, EmptyShell Shell) 1241db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : CastExpr(SC, Shell) { } 1242db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 124349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 124449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 124549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 124649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType getTypeAsWritten() const { return TypeAsWritten; } 1247db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setTypeAsWritten(QualType T) { TypeAsWritten = T; } 124849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 124949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const Stmt *T) { 12509d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 12516eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ExplicitCastExprClass && SC <= CStyleCastExprClass) 12529d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 12539d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 125449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor return true; 12559d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 12569d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 125749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 125849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 125949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 126049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 12616eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 126249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 126349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 12646eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 1265b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 1266b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12686eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor CStyleCastExpr(QualType exprTy, Expr *op, QualType writtenTy, 1269b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation l, SourceLocation r) : 1270b2f9e516327310d95840d442416084508f80c183Steve Naroff ExplicitCastExpr(CStyleCastExprClass, exprTy, op, writtenTy), 1271b2f9e516327310d95840d442416084508f80c183Steve Naroff LPLoc(l), RPLoc(r) {} 127249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 1273db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 1274db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor explicit CStyleCastExpr(EmptyShell Shell) 1275db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : ExplicitCastExpr(CStyleCastExprClass, Shell) { } 1276db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1277b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 1278db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 1279db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1280b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 1281db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 1282db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 1284b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 12855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 12876eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor return T->getStmtClass() == CStyleCastExprClass; 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12896eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 12905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12923fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 12933fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 12943fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 12953fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 12963fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 12973fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 12983fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 12993fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 13003fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 13013fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 13023fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 13033fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 13043fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 13053fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 13063fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 13073fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 13083fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 13093fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 13105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 13115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 13135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 131403d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 1315224605064a4ef87d1c3d35ad1cb363f8b534012bSebastian Redl PtrMemD, PtrMemI, // [C++ 5.5] Pointer-to-member operators. 13165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 13175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 13205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 13215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 13225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 13235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 13245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 13255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 13265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 13275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 13285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 13295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 13305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 13315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 13325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 13335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 133417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 133517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 13365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 133717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner Opcode Opc; 133817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc; 133917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerpublic: 13405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 134117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 134217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 1343898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 1344898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 1345898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent()), 1346898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 13471237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 13481237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 13495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isCompoundAssignmentOp() && 13505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 13515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1353db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 1354db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor explicit BinaryOperator(EmptyShell Empty) 1355db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : Expr(BinaryOperatorClass, Empty), Opc(Comma) { } 1356db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 135717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 1358db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 1359db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 1361db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 1362db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 13635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1364db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 13655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1366db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 1367db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 13685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 13695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 13705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 13735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 13745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 13755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1376063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 1377063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 1378063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 1379063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 1380063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1381063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 1382063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1383063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 13845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 13855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 13865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 13875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftOp() const { return Opc == Shl || Opc == Shr; } 13885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isBitwiseOp() const { return Opc >= And && Opc <= Or; } 1389f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1390f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isRelationalOp(Opcode Opc) { return Opc >= LT && Opc <= GE; } 1391f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isRelationalOp() const { return isRelationalOp(Opc); } 1392f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1393f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isEqualityOp(Opcode Opc) { return Opc == EQ || Opc == NE; } 1394f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isEqualityOp() const { return isEqualityOp(Opc); } 1395f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1396f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isLogicalOp(Opcode Opc) { return Opc == LAnd || Opc == LOr; } 1397f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isLogicalOp() const { return isLogicalOp(Opc); } 1398f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 13995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 14005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 14015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 14025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1403eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner static bool classof(const Stmt *S) { 1404eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == BinaryOperatorClass || 1405eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner S->getStmtClass() == CompoundAssignOperatorClass; 14065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 14081237c673c07f9d827129ba02720108816abde562Ted Kremenek 14091237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 14101237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 14111237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 14121237c673c07f9d827129ba02720108816abde562Ted Kremenek 14135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 141417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 141517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation oploc, bool dead) 141617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : Expr(CompoundAssignOperatorClass, ResTy), Opc(opc), OpLoc(oploc) { 14171237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 14181237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 14195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1420ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1421ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor BinaryOperator(StmtClass SC, EmptyShell Empty) 1422ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(SC, Empty), Opc(MulAssign) { } 14235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 14265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 14275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 14285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 14295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 14305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 14315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 1432ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 1433ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 14345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 1436ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 1437ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 143817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 143917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 1440ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 1441ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 14425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isCompoundAssignmentOp() && 14435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 14445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1446ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 1447ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 1448ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 1449ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1450ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 1451ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 1452ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 1453ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 1454ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 1455ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1456ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 1457ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 1458ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 14595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 14605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *S) { 1461eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == CompoundAssignOperatorClass; 14625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 14665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 14675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 14685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 14691237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 14705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 14715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConditionalOperator(Expr *cond, Expr *lhs, Expr *rhs, QualType t) 1473898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 1474898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 1475898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 1476898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 1477898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 1478898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (cond->isValueDependent() || 1479898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 1480898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (rhs && rhs->isValueDependent()))) { 14811237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 14821237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 14831237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 14841237c673c07f9d827129ba02720108816abde562Ted Kremenek } 14855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1486ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 1487ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 1488ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 1489ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1490395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 1491395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 14925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 1493ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 1494395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1495395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1496395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 1497395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 1498395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 1499395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 1500395a2abf0028968d85958610e393e067885dc14fTed Kremenek // is only evaluated once. 1501395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 15025549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 1503395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 1504395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1505395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1506395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 15075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 1508395a2abf0028968d85958610e393e067885dc14fTed Kremenek 15095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 1510ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1511ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 15125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1513ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 15145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 15165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 15175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 15195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ConditionalOperatorClass; 15205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 15221237c673c07f9d827129ba02720108816abde562Ted Kremenek 15231237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 15241237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 15251237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 15265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15286481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 15296481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 15305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 15315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 15325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15336481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 15346481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 15356481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner : Expr(AddrLabelExprClass, t), AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 15365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15377d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 15387d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor explicit AddrLabelExpr(EmptyShell Empty) 15397d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 15407d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 15417d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 15427d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 15437d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 15447d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 15457d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 15465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 15475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 15485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 15517d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 15527d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 15535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 15546481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner return T->getStmtClass() == AddrLabelExprClass; 15555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15566481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 15571237c673c07f9d827129ba02720108816abde562Ted Kremenek 15581237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 15591237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 15601237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 15615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 1562ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1563ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 1564ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 1565ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 1566ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 15675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 1568ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 1569ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 1570d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 1571d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 1572d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(StmtExprClass, T), SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 1573ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 15746a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 15756a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 15766a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 15775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 15785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 15796a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 15806a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 1581ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 1582ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 1583ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 15845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1585026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 15866a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1587026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 15886a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1589026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1590ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 1591ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return T->getStmtClass() == StmtExprClass; 1592ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 1593ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 15941237c673c07f9d827129ba02720108816abde562Ted Kremenek 15951237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 15961237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 15971237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1598ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 1599ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1600d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// TypesCompatibleExpr - GNU builtin-in function __builtin_type_compatible_p. 1601d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 1602d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 1603d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 1604d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 1605d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type1; 1606d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type2; 1607363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 1608d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 1609363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 1610d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType t1, QualType t2, SourceLocation RP) : 1611d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(TypesCompatibleExprClass, ReturnType), Type1(t1), Type2(t2), 1612363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff BuiltinLoc(BLoc), RParenLoc(RP) {} 1613d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 161444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 161544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 161644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 161744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 16187f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType1() const { return Type1; } 161944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType1(QualType T) { Type1 = T; } 16207f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType2() const { return Type2; } 162144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType2(QualType T) { Type2 = T; } 1622ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 162344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 162444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 162544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 162644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 162744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 162844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 1629d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 1630363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 1631d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1632d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 1633d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff return T->getStmtClass() == TypesCompatibleExprClass; 1634d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1635d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 16361237c673c07f9d827129ba02720108816abde562Ted Kremenek 16371237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 16381237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 16391237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1640d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 1641d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 1642d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 1643d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 1644d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 1645d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 1646d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 1647d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 1648d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 1649d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 1650d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1651d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 1652d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 1653d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 1654d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 16555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 1656d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 1657d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1658d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 1659d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman ShuffleVectorExpr(Expr **args, unsigned nexpr, 1660d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman QualType Type, SourceLocation BLoc, 1661d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation RP) : 1662d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr(ShuffleVectorExprClass, Type), BuiltinLoc(BLoc), 1663f809e3bd0c3d063f22ba34981072dae306ca9272Ted Kremenek RParenLoc(RP), NumExprs(nexpr) { 1664f809e3bd0c3d063f22ba34981072dae306ca9272Ted Kremenek 16655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek SubExprs = new Stmt*[nexpr]; 1666d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 1667d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 1668d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 166994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 167094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 167194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit ShuffleVectorExpr(EmptyShell Empty) 167294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 167394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 167494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 167594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 167694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 167794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 167894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 167994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 1680d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 1681d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 1682d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1683d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 1684d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return T->getStmtClass() == ShuffleVectorExprClass; 1685d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1686d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 1687d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1688d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman ~ShuffleVectorExpr() { 1689d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman delete [] SubExprs; 1690d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1691d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1692d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 1693d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 1694d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 1695d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 1696d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1697d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 1698d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 1699d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 17005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1701d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1702d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 1703d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 17045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1705d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1706d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 170794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setExprs(Expr ** Exprs, unsigned NumExprs); 170894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 1709dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 1710dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 17119a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 1712d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1713d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1714d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 1715d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 1716d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 1717d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 1718d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1719d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 1720d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// This AST node is similar to the conditional operator (?:) in C, with 1721d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 17227976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 17237976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 17247976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 17257976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 17267976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 17277976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 1728d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 17291237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 17305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 1731d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 1732d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 1733d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 1734d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation RP) 1735d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff : Expr(ChooseExprClass, t), 17361237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 17371237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 17381237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 17391237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 17401237c673c07f9d827129ba02720108816abde562Ted Kremenek } 17417976932a1c256d447316ffac58e9821417725e34Eli Friedman 174244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 174344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 174444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 17457976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 17467976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 174727437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 17487976932a1c256d447316ffac58e9821417725e34Eli Friedman 17497976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 17507976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 17517976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 17527976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 17537976932a1c256d447316ffac58e9821417725e34Eli Friedman } 17547976932a1c256d447316ffac58e9821417725e34Eli Friedman 17555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 175644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 17575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 175844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 17595549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 176044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 176144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 176244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 176344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 176444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 176544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 176644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 17671237c673c07f9d827129ba02720108816abde562Ted Kremenek 1768d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 1769d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 1770d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 1771d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 1772d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return T->getStmtClass() == ChooseExprClass; 1773d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 1774d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 17751237c673c07f9d827129ba02720108816abde562Ted Kremenek 17761237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 17771237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 17781237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1779d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 1780d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 17812d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 17822d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 17832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 17842d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 17852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 17862d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 17872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 17882d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 17892d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 17902d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 17912d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 17922d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor GNUNullExpr(QualType Ty, SourceLocation Loc) 17932d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor : Expr(GNUNullExprClass, Ty), TokenLoc(Loc) { } 17942d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 179544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 179644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 179744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 17982d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 17992d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 180044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 18012d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 18022d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 18032d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 18042d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 18052d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 18062d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return T->getStmtClass() == GNUNullExprClass; 18072d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 18082d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 18092d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 18102d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 18112d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 18122d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 18132d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 18142d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 18157c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson/// VAArgExpr, used for the builtin function __builtin_va_start. 18167c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 18175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 18187c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 18197c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 18207c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 18217c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson : Expr(VAArgExprClass, t), 18227c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson Val(e), 18237c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 18247c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 18257c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 1826d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Create an empty __builtin_va_start expression. 1827d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 1828d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 18295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 18305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1831d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1832d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 1833d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 1834d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 1835d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 1836d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 1837d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1838d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 18397c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 18407c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 18417c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 18427c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 18437c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 18447c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 18457c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 18467c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 18477c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 18487c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 18497c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_end(); 18507c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 18517c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 18524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 18534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 18544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 18554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 18564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 18574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 18584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 18594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 18604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 1861196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 18624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 18634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 18644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 18654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 18664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 18674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 18684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 18694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 1870196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 18714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 18724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 18734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 18744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 18754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 18764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 18774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 18783498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 18794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 18804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 18814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 1882196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 18834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 18844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 18854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 18864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 18874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 18884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 188966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 18905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek std::vector<Stmt *> InitExprs; 189166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 1892418f6c7d142e5ff4607f70cd8431d008442bafe9Chris Lattner 18934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 18944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 18954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 18964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 18970bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 18980bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 18990bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 19000bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 1901a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 1902a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 1903a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 1904a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 190566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 190666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson InitListExpr(SourceLocation lbraceloc, Expr **initexprs, unsigned numinits, 19074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation rbraceloc); 1908d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 1909d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 1910d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit InitListExpr(EmptyShell Empty) : Expr(InitListExprClass, Empty) { } 191166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 1912c5ae899b4bbf65488445316c63168079177db0edSteve Naroff unsigned getNumInits() const { return InitExprs.size(); } 191366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 191466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson const Expr* getInit(unsigned Init) const { 1915c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 19164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 191766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 191866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 191966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson Expr* getInit(unsigned Init) { 1920c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 19214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 192266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 192366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 19249e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff void setInit(unsigned Init, Expr *expr) { 1925c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 19269e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 19279e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 1928c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 1929fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 1930fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor void reserveInits(unsigned NumInits); 1931fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor 19324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 19334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 19344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 19354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 19364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 19374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 19384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 19394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 19404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 19414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 19424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 19434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 19444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 19454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 19464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 19474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor Expr *updateInit(unsigned Init, Expr *expr); 1948c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 19490bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 19500bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 19510bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 19520bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 19530bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 19540bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 19550bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 19560bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 19570bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 1958c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 1959c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 1960b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 1961b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 1962b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 19639e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff 1964d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 1965d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 1966d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 196787fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 196887fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 19694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 19704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 19714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 19724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 19734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 19744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 19754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 1976a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 1977d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void sawArrayRangeDesignator(bool ARD = true) { 1978d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 1979a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 1980a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 198166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 198266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 198366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 198466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 198566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return T->getStmtClass() == InitListExprClass; 198666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 198766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 198866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 198966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 199066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 199166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 19926336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenek 19937fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::iterator iterator; 19947fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::reverse_iterator reverse_iterator; 19957fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek 19967fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator begin() { return InitExprs.begin(); } 19977fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator end() { return InitExprs.end(); } 19987fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 19997fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rend() { return InitExprs.rend(); } 200066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 200166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 200205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 200305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 200405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 200505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 200605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 200705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 200805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 200905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 201005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 201105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 201205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 201305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 201405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 201505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 201605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 201705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 201805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 201905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 202005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 202105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 202205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 2023ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 2024ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 2025ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 2026ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2027ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 202805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 202905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 203005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 203105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2032eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 203305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 2034eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 203505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 203605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 203705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 203805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2039ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 2040ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 2041ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 2042ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 204305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 204405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 204505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 204605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 204705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2048ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 204905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor DesignatedInitExpr(QualType Ty, unsigned NumDesignators, 2050ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 2051eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 2052ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor unsigned NumSubExprs); 205305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2054d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 2055d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 2056d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 2057d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 205805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 205905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 206005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 206105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 206205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 206305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 206405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 206505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 206605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 206705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 206805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 206905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 207005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 207105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 207205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 207305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 207405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 207505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 207605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 207705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 207805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 207905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 208005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 208105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 208205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 208305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 208405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 208505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 208605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 208705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned RBracketLoc; 208805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 208905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 209005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 209105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 209205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 209305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 209405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 209505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 209605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 209705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 209805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 209905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 210005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 210105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 210205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 210305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 210405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 210505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 210605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 210705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 210805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 210905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 211005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 211105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 211205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 2113ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 2114ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 211505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 211605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 211705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation FieldLoc) 211805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 211905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 212005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 212105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 212205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 212305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 212405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 212505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(unsigned Index, SourceLocation LBracketLoc, 212605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 212705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 212805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 212905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 213005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 213105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 213205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 213305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 213405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 213505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(unsigned Index, SourceLocation LBracketLoc, 213605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 213705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 213805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 213905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 214005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 214105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 214205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 214305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 214405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 214505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 214605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 214705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 214805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 214905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 215005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 215105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 215205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 215305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 215405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 215505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 215605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 215705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 215805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 215905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 216005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 216105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 216205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 216387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 216487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 216587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 216687f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 216787f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 216805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 216905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 217005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 217105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 217205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 217305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 217405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 217505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 217605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 217705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 217805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 217905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 218005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 218105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 218205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 218305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 218405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 218505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 218605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 218705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 218805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 218905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 21904c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2191d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 2192d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 2193d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 2194d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 2195d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2196d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 21974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 21984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 21994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 22004c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 22014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 22024c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 220305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 220405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 220505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 220605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 220705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 220805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 2209eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 221005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2211d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 2212d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 221305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 221405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 221505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 221605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 221705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 2218ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 2219ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_end() { 2220ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor return Designators + NumDesignators; 2221ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 222205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2223711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 2224711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 2225d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setDesignators(const Designator *Desigs, unsigned NumDesigs); 2226d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 222705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 222805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 222905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 223005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 223105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 223205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 223305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 2234d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 223505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 223605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 2237eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 2238eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 2239d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 224005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 224105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 224205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getInit() const { 224305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 224405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 224505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 224605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 224705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 224805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 224905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2250d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 2251d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 2252d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 2253d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 2254d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 2255d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2256d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 2257d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2258d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2259d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2260d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 2261d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2262d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2263d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 2264d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2265d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2266d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2267d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 2268d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2269d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2270ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 2271ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 2272ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor void ExpandDesignator(unsigned Idx, const Designator *First, 2273ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 2274ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 227505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 227605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2277ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor virtual void Destroy(ASTContext &C); 2278ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 227905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 228005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return T->getStmtClass() == DesignatedInitExprClass; 228105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 228205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 228305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 228405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 228505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 22863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_end(); 22873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 22883498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 22893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 22903498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 22913498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 22921a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 22931a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 22943498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 22951a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 22961a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 22973498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorclass ImplicitValueInitExpr : public Expr { 22983498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 22993498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor explicit ImplicitValueInitExpr(QualType ty) 23003498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor : Expr(ImplicitValueInitExprClass, ty) { } 23013498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 2302d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 2303d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 2304d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 2305d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 23063498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const Stmt *T) { 23073498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 23083498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 23093498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 23103498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 23113498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 23123498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 23133498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 23143498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 23153498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 23163498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 231705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_end(); 231805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 231905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 23204eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 23214eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 23224eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 23234eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 2324a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2325a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 2326a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 2327a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 2328a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 232973525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 233073525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 233173525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 2332a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 2333a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 2334d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 2335a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 2336a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 2337a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 2338a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 2339a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(ExtVectorElementExprClass, ty), 2340d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 2341a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2342d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 2343d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 2344d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 2345d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2346a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 2347a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 2348d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 2349d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2350d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 2351d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 2352d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2353d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 2354d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 2355d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2356a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 2357a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 2358a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2359a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 2360a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 2361a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 2362a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2363a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 2364a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 2365a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 2366a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2367a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 2368a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 2369a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 2370a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 23712140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 23722140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 23732140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 23742140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner 2375a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const Stmt *T) { 2376a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return T->getStmtClass() == ExtVectorElementExprClass; 2377a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 2378a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 2379a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2380a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 2381a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 2382a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 2383a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 2384a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2385a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 238656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 23879c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 23884eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 238956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 239056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 2391b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 23924eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 2393b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 2394b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump : Expr(BlockExprClass, ty), 2395b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 23969c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 239784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 239884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 239984af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 2400d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 240156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 240284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 240384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 240456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 240556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 240656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 240756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 24089c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 24097297134f128423fce2e88f92421ed135bded7d4eDouglas Gregor const Stmt *getBody(ASTContext &C) const { return getBody(); } 24107297134f128423fce2e88f92421ed135bded7d4eDouglas Gregor Stmt *getBody(ASTContext &C) { return getBody(); } 24117297134f128423fce2e88f92421ed135bded7d4eDouglas Gregor 24129c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 241356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 24149c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 24159c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 241656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 241756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 241856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 2419b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 24205b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 2421b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 242284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 2423b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 24244eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const Stmt *T) { 24259c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 24264eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 24274eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 24284eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 24294eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 24304eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 24314eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 24324eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 24339c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 24344eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 24354eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 24364eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 24374eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *D; 24384eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 24394eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool IsByRef; 24404eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 24414eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef) : 24424eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff Expr(BlockDeclRefExprClass, t), D(d), Loc(l), IsByRef(ByRef) {} 244394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 244494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 244594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 244694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 244794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 24484eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 24494eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 24504eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 245194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 245294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 245394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 245494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 245594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 24564eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 24574eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 24584eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 245994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 246094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 24614eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const Stmt *T) { 24624eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff return T->getStmtClass() == BlockDeclRefExprClass; 24634eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 24644eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 24654eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 24664eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 24674eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 24684eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 24694eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 24704eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 24715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 24725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2474