Expr.h revision c4bf26fbdff42967d660f505a83f75a4df2cc752
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 449ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregorprotected: 45898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// TypeDependent - Whether this expression is type-dependent 46898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.expr]). 47898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool TypeDependent : 1; 48898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 49898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// ValueDependent - Whether this expression is value-dependent 50898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.constexpr]). 51898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool ValueDependent : 1; 52898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 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: 7043d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// \brief Increases the reference count for this expression. 7143d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// 7243d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// Invoke the Retain() operation when this expression 7343d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// is being shared by another owner. 7443d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Expr *Retain() { 7543d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Stmt::Retain(); 7643d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor return this; 7743d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor } 7843d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor 79f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 80f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor void setType(QualType t) { 819d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 829d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 839d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 849d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 859d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 869d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 879d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 88f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor assert((TR.isNull() || !TR->isReferenceType()) && 898320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 90f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 91f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor TR = t; 929d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 9377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 94898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 95898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 96898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 97898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent. 98898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 99898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isValueDependent() const { return ValueDependent; } 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1030b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 1040b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValueDependent(bool VD) { ValueDependent = VD; } 1050b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 106898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 107898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<typename T> 113898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 114898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 115898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 117898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isTypeDependent() const { return TypeDependent; } 118898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1190b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1200b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setTypeDependent(bool TD) { TypeDependent = TD; } 1210b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 131026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 132026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 133026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 134026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 135026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 13640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis SourceRange &R2) const; 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 14708ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 14876458501a8963fa11b91c9337a487de6871169b4Sebastian Redl /// - b ? x : y, where x and y are lvalues of suitable types [C++] 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 154fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 15586f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 15686f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_MemberFunction 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 15828be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 15953202857c60214d80950a975e6e52aebf30bd16aEli Friedman 16053202857c60214d80950a975e6e52aebf30bd16aEli Friedman // Same as above, but excluding checks for non-object and void types in C 16153202857c60214d80950a975e6e52aebf30bd16aEli Friedman isLvalueResult isLvalueInternal(ASTContext &Ctx) const; 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and if it is a structure or union, does not have any member (including, 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 16844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 16944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 17044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 17144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 176fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 178ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1814f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1825daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 183ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 18486f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 18586f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_MemberFunction 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 18744e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 18844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19033bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 19133bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 19233bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19438d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 19538d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 19638d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 19738d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 202590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 203590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 205590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 2068070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 207590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 209c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 210c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 211c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman bool isConstantInitializer(ASTContext &Ctx) const; 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 21494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 2152d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 21694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 21794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 21894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 21994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 22094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 22194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 22294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 22394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 22494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 22594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 22694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 22794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 22894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 22994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 23094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 23194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 23294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 23394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 23494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 23594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 23694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 2376ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 238019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 239019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 240019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 2415b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 2425b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 2436ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 24445b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 24545b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 246c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 24751fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 24851fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 24951fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 25051fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 2511b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson /// EvaluateAsLValue - Evaluate an expression to see if it's a valid LValue. 2521b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 2531b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 254efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 255efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 256efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 257efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson bool isNullPointerConstant(ASTContext &Ctx) const; 258efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 25944baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 26044baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// write barrier. 261102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 2624e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek 2634e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 2644e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// its subexpression. If that subexpression is also a ParenExpr, 2654e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 2664e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 2674e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek Expr* IgnoreParens(); 26856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 26956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 27027c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 27156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 2724e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek 273ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 274ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 275ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 276ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 277ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner 2784e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek const Expr* IgnoreParens() const { 2794e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 2804e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 28156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 28256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 28356f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 284ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 285ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 286ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 287ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner 288898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 289898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 290898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer T->getStmtClass() <= lastExprConstant; 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2985549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 2995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 3068e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor NamedDecl *D; 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 3089e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 3099e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidisprotected: 3101a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // FIXME: Eventually, this constructor will go away and all subclasses 3111a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // will have to provide the type- and value-dependent flags. 3128e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l) : 3139e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis Expr(SC, t), D(d), Loc(l) {} 3149e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 3151a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l, bool TD, 3161a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor bool VD) : 3171a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor Expr(SC, t, TD, VD), D(d), Loc(l) {} 3181a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 320898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: Eventually, this constructor will go away and all clients 321898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // will have to provide the type- and value-dependent flags. 3228e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l) : 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr(DeclRefExprClass, t), D(d), Loc(l) {} 324898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 325898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l, bool TD, bool VD) : 326898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(DeclRefExprClass, t, TD, VD), D(d), Loc(l) {} 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3280b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty declaration reference expression. 3290b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit DeclRefExpr(EmptyShell Empty) 3300b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(DeclRefExprClass, Empty) { } 3310b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 3328e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor NamedDecl *getDecl() { return D; } 3338e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor const NamedDecl *getDecl() const { return D; } 334904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor void setDecl(NamedDecl *NewD) { D = NewD; } 335904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 3369e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 3370b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 3385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 3419e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis return T->getStmtClass() == DeclRefExprClass || 3421a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor T->getStmtClass() == CXXConditionDeclExprClass || 3431a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor T->getStmtClass() == QualifiedDeclRefExprClass; 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 34677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 34777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 34877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 34977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 352d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 353d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 354227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 355227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 356227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 357227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 358cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor PrettyFunction 359227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 360227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 361227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 362227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 363227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 364227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 365d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 366d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner : Expr(PredefinedExprClass, type), Loc(l), Type(IT) {} 367227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 36817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 36917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor explicit PredefinedExpr(EmptyShell Empty) 37017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 37117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 372227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 37317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 37417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 37517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 37617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 37717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 378b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // FIXME: The logic for computing the value of a predefined expr should go 379b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // into a method here that takes the inner-most code decl (a block, function 380b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // or objc method) that the expr lives in. This would allow sema and codegen 381b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // to be consistent for things like sizeof(__func__) etc. 382b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner 383227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 384227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 385227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson static bool classof(const Stmt *T) { 386d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner return T->getStmtClass() == PredefinedExprClass; 387227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 388d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 38977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 39077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 39177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 39277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 393227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 394227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 3955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 3965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 3975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 3985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 4015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(IntegerLiteralClass, type), Value(V), Loc(l) { 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 4045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 405a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 4060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty integer literal. 4070b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit IntegerLiteral(EmptyShell Empty) 4080b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(IntegerLiteralClass, Empty) { } 4090b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 4115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 4125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 413313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 414313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 415313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 4160b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(const llvm::APInt &Val) { Value = Val; } 4170b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 4180b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == IntegerLiteralClass; 4215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 42377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 42477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 42577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 42677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 4305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 4315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 432c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 4335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 435c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 436c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner : Expr(CharacterLiteralClass, type), Value(value), Loc(l), IsWide(iswide) { 4375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4380b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4390b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 4400b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 4410b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 442018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 443c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 4442eadfb638eb1bb6ccfd6fd0453e764d47e27eed9Chris Lattner 4455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 4465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 4485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4490b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 4500b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 4510b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 4520b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == CharacterLiteralClass; 4555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 45777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 45877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 45977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 46077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 464525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner llvm::APFloat Value; 465720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 4675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 468001d64dd2947c1ce06e3eac257a9a21c65ae4ff3Chris Lattner FloatingLiteral(const llvm::APFloat &V, bool isexact, 469720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 470001d64dd2947c1ce06e3eac257a9a21c65ae4ff3Chris Lattner : Expr(FloatingLiteralClass, Type), Value(V), IsExact(isexact), Loc(L) {} 4715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 47217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 4738b0b475b3464b0f70b91ba7d679d23c424677d5eSebastian Redl explicit FloatingLiteral(EmptyShell Empty) 47417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(FloatingLiteralClass, Empty), Value(0.0) { } 47517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 476c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner const llvm::APFloat &getValue() const { return Value; } 47717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setValue(const llvm::APFloat &Val) { Value = Val; } 47817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 479720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 48017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 481c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 482da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 483da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 484da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 485da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 486da8249e57f3badecf925571881fe57243935c6c1Chris Lattner 48717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 48817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 48917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 4904863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // FIXME: The logic for computing the value of a predefined expr should go 4914863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // into a method here that takes the inner-most code decl (a block, function 4924863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // or objc method) that the expr lives in. This would allow sema and codegen 4934863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // to be consistent for things like sizeof(__func__) etc. 4944863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner 4955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 4965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == FloatingLiteralClass; 4995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 50177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 50277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 50377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 50477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5075d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 5085d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 5095d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 5105d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 5115d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 5125d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 5135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 5145d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 5155d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 5165d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner : Expr(ImaginaryLiteralClass, Ty), Val(val) {} 5175d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 518cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 519cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ImaginaryLiteral(EmptyShell Empty) 520cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 521cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 5225549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 5235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 524cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 525cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 5265d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 5275d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const Stmt *T) { 5285d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner return T->getStmtClass() == ImaginaryLiteralClass; 5295d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 5305d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 5315d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 5325d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 5335d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 5345d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 5355d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 5365d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 537e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 538e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 539e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 540a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 541c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 542c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 543690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 544690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 5458bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 546690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 547c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 548c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 549c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 550c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 551c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 552c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 5535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 5545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 5555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 557726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 558726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 5592085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 5602085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner StringLiteral(QualType Ty) : Expr(StringLiteralClass, Ty) {} 56142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 56242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 56342602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext &C); 56442602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 5662085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 5672085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 5682085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 5692085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 570a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 5712085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 5722085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 5732085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 5742085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 5752085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 5762085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 5772085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 578a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 579673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 580673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 581673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 584673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 585673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 586673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setStrData(ASTContext &C, const char *Str, unsigned Len); 587673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 589673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 590673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 5918d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 59233fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff for (unsigned i = 0; i < getByteLength(); ++i) 5938d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff if (!isascii(getStrData()[i]) || !getStrData()[i]) 59433fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 59533fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 59633fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 597726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 598726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 599726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 600726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner 601726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 602726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 603726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 604726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 605673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 606673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 607673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 608673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 609673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 610b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 611b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 612b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 6135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 615726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 6165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 6185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == StringLiteralClass; 6195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 62177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 62277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 62377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 62477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 6315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 634898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 635898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor val->isTypeDependent(), val->isValueDependent()), 636898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 638c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 639c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor explicit ParenExpr(EmptyShell Empty) 640c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 641c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 6425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 6435549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 644c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 645c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 646866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 648313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 649313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 650c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 651313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 652313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 653313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 654c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 655313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ParenExprClass; 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 66077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 66177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 66277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 66377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6670518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 6680518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 670dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 671dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 672dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 673dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 674dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 675dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 676dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 67773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 67873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// subexpression is a compound literal with the various MemberExpr and 67973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// ArraySubscriptExpr's applied to it. 68073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// 6815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 68313d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 6845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 6895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 69173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner Extension, // __extension__ marker. 69273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner OffsetOf // __builtin_offsetof 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 6955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 7019103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 7029103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isTypeDependent() && opc != OffsetOf, 7039103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isValueDependent()), 7049103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor Val(input), Opc(opc), Loc(l) {} 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7060b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 7070b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit UnaryOperator(EmptyShell Empty) 7080b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(UnaryOperatorClass, Empty), Opc(AddrOf) { } 7090b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 7110b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 7120b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 7140b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 7150b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 7175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 7180b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 7190b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 7212085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 7222085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PostInc || Op == PostDec; 7232085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7255a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 7262085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 7272085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PreInc || Op == PreDec; 7282085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 7295a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 7305a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek bool isPrefix() const { return isPrefix(Opc); } 7315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 7325d826b82936beb2c32dd02460332ba8035192c65Ted Kremenek bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 7345a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson bool isOffsetOfOp() const { return Opc == OffsetOf; } 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 736a4e70568ae8902d48aad215c16b0fc8b40308106Ted Kremenek bool isArithmeticOp() const { return isArithmeticOp(Opc); } 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 7415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 742bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 743bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 744bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 745bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 746bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 747bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 748bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 749bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 7575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == UnaryOperatorClass; 7605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 76277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 76377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 76477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 76577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7680518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 7690518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 7700518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 7710518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 7720518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 773d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 774d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl void *Ty; 775d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 776d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 77842602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 77942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 78042602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 78142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 783ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SizeOfAlignOfExpr(bool issizeof, QualType T, 7840518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 7850518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 7862850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl Expr(SizeOfAlignOfExprClass, resultType, 787ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 7882850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 789ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor T->isDependentType()), 790ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 791ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ty = T.getAsOpaquePtr(); 792ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 793ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 794ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SizeOfAlignOfExpr(bool issizeof, Expr *E, 795ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 796ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 797ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Expr(SizeOfAlignOfExprClass, resultType, 798ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 799ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 800ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 801ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 802ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 803d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 8040518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 8050b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 8060b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 8070b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 8080b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 8100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 8110b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8120518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 8130518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 8140518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 815d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return QualType::getFromOpaquePtr(Argument.Ty); 8160518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 817caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 8180518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 819d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 8200518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 821caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 822caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 823caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 8240b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8250b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 8260b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(QualType T) { 8270b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor Argument.Ty = T.getAsOpaquePtr(); 8280b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor isType = true; 8290b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 8300b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8310518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 8320518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 8330518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 8340518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 8350518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 8360518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 83776e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 8380b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 8390b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8400b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 8410b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 842866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 843866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 844866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 845866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 8480518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return T->getStmtClass() == SizeOfAlignOfExprClass; 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8500518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 85177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 85277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 85377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 85477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 86377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 8645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8672324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 86873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 8692850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl : Expr(ArraySubscriptExprClass, t, 8702850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 8712850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 8722850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 87373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 87473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 87573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 877cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 878cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 879cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 880cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8812324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 8822324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 8832324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 8842324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 8852324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 88633fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 88733fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 88833fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 88933fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 8905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 8915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 892cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 893cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8945549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 8955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 896cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 8972324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 89877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getBase() { 8995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 90077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 90177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 9022324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek const Expr *getBase() const { 9035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 9042324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 9052324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 90677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getIdx() { 9075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 9082324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 9092324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 91077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 9115549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 91277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 914866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 91577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 917866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 918026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 919cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 920cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 9215cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ArraySubscriptExprClass; 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 92777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 92877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 92977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 93077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 934b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 935b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 936b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 937b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// results in a function call. For example, CXXOperatorCallExpr is 938b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 939b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 94177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 9425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 9445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 945d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 946b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 947b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 948668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 949668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek QualType t, SourceLocation rparenloc); 95042602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 95142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 952d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 954668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 956668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 9571f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 958ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 9591f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 960668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek ~CallExpr() {} 961668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 9625549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 9635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 96418b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 965a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 966a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 967a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 968a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 9705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 9765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 9805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 982668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 983934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 984934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 985934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 986934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 987934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 988d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 989d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 990d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 991d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 9928189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 993d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 9945549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 9955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 9965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 997d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 998d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 9995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 10005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 1001d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 10025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1006cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1007cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 10083c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 1009cb888967400a03504c88acedd5248d6778a82f46Chris Lattner 10106dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// getCallReturnType - Get the return type of the call expr. This is not 10116dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// always the type of the expr itself, if the return type is a reference 10126dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 10136dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 10146dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson 1015d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 10161f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1017866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1018866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 101977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 1023b4609806e9232593ece09ce08b630836e825865cDouglas Gregor return T->getStmtClass() == CallExprClass || 102488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor T->getStmtClass() == CXXOperatorCallExprClass || 102588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor T->getStmtClass() == CXXMemberCallExprClass; 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 102888a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXOperatorCallExpr *) { return true; } 102988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXMemberCallExpr *) { return true; } 103088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 103177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 103277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 103377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 103683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 103783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor/// "std::" in "std::sort". 103883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregorstruct NameQualifier { 103983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief The nested name specifier. 104083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *NNS; 104183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 104283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief The source range covered by the nested name specifier. 104383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor SourceRange Range; 104483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor}; 1045c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1046c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 1047c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor/// the "<int>" in "sort<int>". 1048c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregorstruct ExplicitTemplateArgumentList { 1049c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief The source location of the left angle bracket ('<'); 1050c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation LAngleLoc; 1051c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1052c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief The source location of the right angle bracket ('>'); 1053c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation RAngleLoc; 1054c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1055c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief The number of template arguments in TemplateArgs. 1056c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// The actual template arguments (if any) are stored after the 1057c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// ExplicitTemplateArgumentList structure. 1058c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor unsigned NumTemplateArgs; 1059c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1060c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments 1061c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor TemplateArgument *getTemplateArgs() { 1062c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<TemplateArgument *> (this + 1); 1063c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 1064c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1065c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments 1066c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const TemplateArgument *getTemplateArgs() const { 1067c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<const TemplateArgument *> (this + 1); 1068c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 1069c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor}; 107083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 1071ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 1074ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1075ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 10765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 1077ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1078ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1079ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 108086f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *MemberDecl; 1081ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1082ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 1084ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1085ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 108683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 1087bd4c4aebe6035e7a7125470cc9f0f92511230ee3Douglas Gregor 108883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 1089c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// refer to the member, e.g., "x->Base::f". When true, a NameQualifier 1090c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 109183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool HasQualifier : 1; 1092bd4c4aebe6035e7a7125470cc9f0f92511230ee3Douglas Gregor 1093c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1094c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1095c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1096c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 1097c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the NameQualifier structure. 1098c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 1099c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 110083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 110183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NameQualifier *getMemberQualifier() { 110283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 110383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 110483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 110583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 110683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 110783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 110883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 110983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor const NameQualifier *getMemberQualifier() const { 1110c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1111c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 1112c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1113c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1114c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1115c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 1116c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 111783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 111883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 1119c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasQualifier) 1120c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 1121c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1122c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 1123c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor getMemberQualifier() + 1); 1124c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 1125c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1126c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1127c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1128c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 1129c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getExplicitTemplateArgumentList(); 113083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 113183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 113283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor MemberExpr(Expr *base, bool isarrow, NestedNameSpecifier *qual, 113383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor SourceRange qualrange, NamedDecl *memberdecl, SourceLocation l, 1134c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool has_explicit, SourceLocation langle, 1135c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const TemplateArgument *targs, unsigned numtargs, 1136c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation rangle, QualType ty); 113783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 113986f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MemberExpr(Expr *base, bool isarrow, NamedDecl *memberdecl, SourceLocation l, 1140510190777c4bd53e960eea4665b204778fec1b64Eli Friedman QualType ty) 1141ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson : Expr(MemberExprClass, ty, 1142ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 114383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow), 1144c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor HasQualifier(false), HasExplicitTemplateArgumentList(false) {} 1145510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 11461f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty member reference expression. 11471f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor explicit MemberExpr(EmptyShell Empty) : Expr(MemberExprClass, Empty) { } 11481f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 114983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 115083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 115183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NamedDecl *memberdecl, 1152c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation l, 1153c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool has_explicit, 1154c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation langle, 1155c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const TemplateArgument *targs, 1156c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor unsigned numtargs, 1157c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation rangle, 1158c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor QualType ty); 115983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 116088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 11615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 116257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 116357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 116457e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 116557e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 116657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 116786f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *getMemberDecl() const { return MemberDecl; } 116888a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setMemberDecl(NamedDecl *D) { MemberDecl = D; } 11691f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1170c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had 11710979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 11720979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 117383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool hasQualifier() const { return HasQualifier; } 117483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 117583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 117683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 117783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 117883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor SourceRange getQualifierRange() const { 117983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 118083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 118183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 118283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 118383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 118483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 118583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the 118683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 118783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 118883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *getQualifier() const { 118983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 119083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 119183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 119283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 119383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1194c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1195c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1196c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1197c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool hasExplicitTemplateArgumentList() { 1198c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return HasExplicitTemplateArgumentList; 1199c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 1200c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1201c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the location of the left angle bracket following the 1202c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 1203c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation getLAngleLoc() const { 1204c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1205c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 1206c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1207c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->LAngleLoc; 1208c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 1209c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1210c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1211c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1212c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const TemplateArgument *getTemplateArgs() const { 1213c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1214c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return 0; 1215c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1216c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->getTemplateArgs(); 1217c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 1218c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1219c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1220c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1221c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor unsigned getNumTemplateArgs() const { 1222c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1223c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return 0; 1224c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1225c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->NumTemplateArgs; 1226c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 1227c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1228c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the location of the right angle bracket following the 1229c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 1230c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation getRAngleLoc() const { 1231c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1232c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 1233c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1234c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->RAngleLoc; 1235c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 12360979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 12381f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 12391f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1240ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1241ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1242026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 12431f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 124672527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 124772527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 1248c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation EndLoc = MemberLoc; 1249c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (HasExplicitTemplateArgumentList) 1250c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor EndLoc = getRAngleLoc(); 1251c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 125272527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 125372527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1254c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1255c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1257866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 12585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 12595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 126183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 12625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 12641237c673c07f9d827129ba02720108816abde562Ted Kremenek 12651237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 12661237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 12671237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 12685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1270aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// CompoundLiteralExpr - [C99 6.5.2.5] 1271aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1272aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 12730fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 12740fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 12750fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 12760fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 12775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1278e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1279aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 1280a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner CompoundLiteralExpr(SourceLocation lparenloc, QualType ty, Expr *init, 1281a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool fileScope) 1282a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(CompoundLiteralExprClass, ty), LParenLoc(lparenloc), Init(init), 1283a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner FileScope(fileScope) {} 1284aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 1285ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1286ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1287ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1288ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 12895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 12905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1291ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1292e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1293e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1294ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1295ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 12960fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1297ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1298ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 129973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 13000fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 13010fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 13020fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 13030fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 130473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 13050fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 130673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1307aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 1308aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const Stmt *T) { 1309aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff return T->getStmtClass() == CompoundLiteralExprClass; 1310aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1311aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 13121237c673c07f9d827129ba02720108816abde562Ted Kremenek 13131237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 13141237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 13151237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1316aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1317aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 131849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 131949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 132049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 132149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 13220835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 1323cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 1324cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CastKind - the kind of cast this represents. 1325cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson enum CastKind { 1326cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_Unknown - Unknown cast kind. 1327cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// FIXME: The goal is to get rid of this and make all casts have a 1328cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// kind so that the AST client doesn't have to try to figure out what's 1329cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// going on. 1330cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_Unknown, 1331cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson 1332cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_BitCast - Used for reinterpret_cast. 1333cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_BitCast, 1334cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson 1335cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_NoOp - Used for const_cast. 13363503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson CK_NoOp, 13373503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson 13383503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson /// CK_DerivedToBase - Derived to base class casts. 1339714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson CK_DerivedToBase, 1340714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson 1341714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson /// CK_Dynamic - Dynamic cast. 13424d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson CK_Dynamic, 13434d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson 13444d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson /// CK_ToUnion - Cast to union (GCC extension). 1345112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson CK_ToUnion, 1346112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson 1347112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson /// CK_ArrayToPointerDecay - Array to pointer decay. 134827a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_ArrayToPointerDecay, 134927a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson 135027a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_NullToMemberPointer - Null pointer to member pointer. 135127a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_NullToMemberPointer, 135227a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson 135327a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_BaseToDerivedMemberPointer - Member pointer in base class to 135427a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// member pointer in derived class. 13559099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian CK_BaseToDerivedMemberPointer, 13569099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian 135758d3f1af9b4efa426826816a16894986b78b2692Fariborz Jahanian /// CK_UserDefinedConversion - Conversion using a user defined type 135858d3f1af9b4efa426826816a16894986b78b2692Fariborz Jahanian /// conversion function. 13597fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian CK_UserDefinedConversion, 13607fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian 13617fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian /// CK_ConstructorConversion - Conversion by constructor 13627fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian CK_ConstructorConversion 1363cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson }; 1364cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson 1365bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson struct CastInfo { 1366bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson const CastKind Kind; 1367bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson 1368bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson // FIXME: This should assert that the CastKind does not require extra 1369bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson // information. 1370bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson CastInfo(CastKind Kind) 1371bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson : Kind(Kind) { } 1372bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson }; 1373bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson 1374cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 1375cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind Kind; 13760835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 13770835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 1378bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson CastExpr(StmtClass SC, QualType ty, const CastInfo &info, Expr *op) : 1379898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 1380898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 1381898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 1382898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 1383898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 1384898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 1385898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType() || (op && op->isValueDependent())), 1386bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson Kind(info.Kind), Op(op) {} 13870835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 1388087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 1389087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor CastExpr(StmtClass SC, EmptyShell Empty) 1390087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : Expr(SC, Empty) { } 1391087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 13920835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 1393cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind getCastKind() const { return Kind; } 1394cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson void setCastKind(CastKind K) { Kind = K; } 1395cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson 13960835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 13970835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 1398087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 1399087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 14000835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const Stmt *T) { 14019d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 14029d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 14039d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 14049d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 14056eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ImplicitCastExprClass && SC <= CStyleCastExprClass) 14060835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return true; 14079d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 14089d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 14090835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 14100835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 14110835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 14120835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 14130835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 14140835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 14150835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 14160835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 141749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 141849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 141949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 142049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 142149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 1422bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 1423bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 1424bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// an lvalue. For example: 1425bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 1426bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 1427bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 1428bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 1429bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// void f(Derived d) { 1430bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// Base& b = d; // initializer is an ImplicitCastExpr to an lvalue of type Base 1431bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 1432bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 14330835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 1434eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// LvalueCast - Whether this cast produces an lvalue. 1435eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool LvalueCast; 1436eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 143749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffpublic: 1438bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson ImplicitCastExpr(QualType ty, const CastInfo &info, Expr *op, bool Lvalue) : 1439bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson CastExpr(ImplicitCastExprClass, ty, info, op), LvalueCast(Lvalue) { } 144090045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1441087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 1442087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor explicit ImplicitCastExpr(EmptyShell Shell) 1443087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : CastExpr(ImplicitCastExprClass, Shell) { } 1444087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 1445087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 14460835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 14470835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 14480835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 144990045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1450eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// isLvalueCast - Whether this cast produces an lvalue. 1451eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool isLvalueCast() const { return LvalueCast; } 1452eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 1453eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// setLvalueCast - Set whether this cast produces an lvalue. 1454eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor void setLvalueCast(bool Lvalue) { LvalueCast = Lvalue; } 1455eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 145649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const Stmt *T) { 145749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff return T->getStmtClass() == ImplicitCastExprClass; 145849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 145949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 146049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 146149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 146249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 146349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// code. 146449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 146549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 146649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 146749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 146849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 146949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 147149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 147249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 147349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 147449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 147549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 147649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// expression will be an lvalue. The reference type, however, will 147749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// not be used as the type of the expression. 14780835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 147949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// TypeAsWritten - The type that this expression is casting to, as 148049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// written in the source code. 148149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType TypeAsWritten; 148249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 148349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 1484bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson ExplicitCastExpr(StmtClass SC, QualType exprTy, const CastInfo &info, 1485bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson Expr *op, QualType writtenTy) 1486bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson : CastExpr(SC, exprTy, info, op), TypeAsWritten(writtenTy) {} 148749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 1488db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 1489db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor ExplicitCastExpr(StmtClass SC, EmptyShell Shell) 1490db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : CastExpr(SC, Shell) { } 1491db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 149249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 149349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 149449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 149549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType getTypeAsWritten() const { return TypeAsWritten; } 1496db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setTypeAsWritten(QualType T) { TypeAsWritten = T; } 149749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 149849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const Stmt *T) { 14999d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 15006eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ExplicitCastExprClass && SC <= CStyleCastExprClass) 15019d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 15029d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 150349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor return true; 15049d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 15059d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 150649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 150749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 150849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 150949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 15106eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 151149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 151249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 15136eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 1514b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 1515b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 15165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1517cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CStyleCastExpr(QualType exprTy, CastKind kind, Expr *op, QualType writtenTy, 1518b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation l, SourceLocation r) : 1519cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson ExplicitCastExpr(CStyleCastExprClass, exprTy, kind, op, writtenTy), 1520b2f9e516327310d95840d442416084508f80c183Steve Naroff LPLoc(l), RPLoc(r) {} 152149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 1522db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 1523db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor explicit CStyleCastExpr(EmptyShell Shell) 1524db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : ExplicitCastExpr(CStyleCastExprClass, Shell) { } 1525db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1526b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 1527db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 1528db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1529b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 1530db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 1531db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 15325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 1533b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 15345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 15366eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor return T->getStmtClass() == CStyleCastExprClass; 15375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15386eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 15395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15413fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 15423fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 15433fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 15443fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 15453fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 15463fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 15473fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 15483fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 15493fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 15503fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 15513fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 15523fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 15533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 15543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 15553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 15563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 15573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 15583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 15595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 15605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 15625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 156303d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 1564224605064a4ef87d1c3d35ad1cb363f8b534012bSebastian Redl PtrMemD, PtrMemI, // [C++ 5.5] Pointer-to-member operators. 15655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 15665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 15675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 15685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 15695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 15705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 15715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 15725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 15735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 15745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 15755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 15765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 15775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 15795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 15825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 158317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 158417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 15855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 158617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner Opcode Opc; 158717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc; 158817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerpublic: 15895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 159017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 159117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 1592898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 1593898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 1594898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent()), 1595898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 15961237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 15971237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 15985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isCompoundAssignmentOp() && 15995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 16005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1602db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 1603db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor explicit BinaryOperator(EmptyShell Empty) 1604db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : Expr(BinaryOperatorClass, Empty), Opc(Comma) { } 1605db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 160617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 1607db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 1608db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 16095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 1610db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 1611db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 16125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1613db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 16145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1615db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 1616db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 16175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 16185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 16195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 16225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 16235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 16245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1625063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 1626063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 1627063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 1628063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 1629063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1630063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 1631063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1632063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 16365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftOp() const { return Opc == Shl || Opc == Shr; } 16375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isBitwiseOp() const { return Opc >= And && Opc <= Or; } 1638f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1639f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isRelationalOp(Opcode Opc) { return Opc >= LT && Opc <= GE; } 1640f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isRelationalOp() const { return isRelationalOp(Opc); } 1641f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1642f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isEqualityOp(Opcode Opc) { return Opc == EQ || Opc == NE; } 1643f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isEqualityOp() const { return isEqualityOp(Opc); } 1644f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1645f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isLogicalOp(Opcode Opc) { return Opc == LAnd || Opc == LOr; } 1646f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isLogicalOp() const { return isLogicalOp(Opc); } 1647f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 16495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 16505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 16515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1652eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner static bool classof(const Stmt *S) { 1653eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == BinaryOperatorClass || 1654eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner S->getStmtClass() == CompoundAssignOperatorClass; 16555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 16571237c673c07f9d827129ba02720108816abde562Ted Kremenek 16581237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 16591237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 16601237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 16611237c673c07f9d827129ba02720108816abde562Ted Kremenek 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 166317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 166417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation oploc, bool dead) 166517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : Expr(CompoundAssignOperatorClass, ResTy), Opc(opc), OpLoc(oploc) { 16661237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 16671237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 16685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1669ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1670ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor BinaryOperator(StmtClass SC, EmptyShell Empty) 1671ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(SC, Empty), Opc(MulAssign) { } 16725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 16755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 16765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 16775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 16785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 16795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 16805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 1681ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 1682ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 16835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 1685ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 1686ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 168717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 168817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 1689ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 1690ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 16915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isCompoundAssignmentOp() && 16925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 16935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1695ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 1696ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 1697ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 1698ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1699ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 1700ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 1701ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 1702ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 1703ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 1704ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1705ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 1706ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 1707ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 17085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 17095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *S) { 1710eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == CompoundAssignOperatorClass; 17115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 17155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 17165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 17175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 17181237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 17195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 172047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 17215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 172247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 172347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation CLoc, Expr *rhs, QualType t) 1724898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 1725898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 1726898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 1727898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 1728898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 1729898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (cond->isValueDependent() || 1730898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 173147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor (rhs && rhs->isValueDependent()))), 173247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 173347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 17341237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 17351237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 17361237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 17371237c673c07f9d827129ba02720108816abde562Ted Kremenek } 17385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1739ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 1740ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 1741ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 1742ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1743395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 1744395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 17455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 1746ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 1747395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1748395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1749395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 1750395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 1751395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 1752395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 1753395a2abf0028968d85958610e393e067885dc14fTed Kremenek // is only evaluated once. 1754395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 17555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 1756395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 1757395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1758395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1759395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 17605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 1761395a2abf0028968d85958610e393e067885dc14fTed Kremenek 17625549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 1763ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1764ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 17655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1766ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 17675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 176847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 176947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 177047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 177147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 177247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 177347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 17745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 17755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 17765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 17785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ConditionalOperatorClass; 17795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 17811237c673c07f9d827129ba02720108816abde562Ted Kremenek 17821237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 17831237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 17841237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 17855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17876481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 17886481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 17895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 17905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 17915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17926481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 17936481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 17946481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner : Expr(AddrLabelExprClass, t), AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 17955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17967d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 17977d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor explicit AddrLabelExpr(EmptyShell Empty) 17987d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 17997d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 18007d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 18017d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 18027d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 18037d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 18047d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 18055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 18065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 18075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 18107d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 18117d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 18125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 18136481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner return T->getStmtClass() == AddrLabelExprClass; 18145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18156481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 18161237c673c07f9d827129ba02720108816abde562Ted Kremenek 18171237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18181237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18191237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 18205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 1821ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1822ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 1823ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 1824ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 1825ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 18265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 1827ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 1828ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 1829d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 1830d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 1831d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(StmtExprClass, T), SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 1832ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 18336a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 18346a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 18356a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 18365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 18375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 18386a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 18396a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 1840ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 1841ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 1842ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 18435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1844026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 18456a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1846026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 18476a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1848026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1849ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 1850ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return T->getStmtClass() == StmtExprClass; 1851ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 1852ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 18531237c673c07f9d827129ba02720108816abde562Ted Kremenek 18541237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18551237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18561237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1857ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 1858ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1859dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 1860d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 1861d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 1862d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 1863d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 1864d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type1; 1865d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type2; 1866363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 1867d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 1868363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 1869d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType t1, QualType t2, SourceLocation RP) : 1870d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(TypesCompatibleExprClass, ReturnType), Type1(t1), Type2(t2), 1871363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff BuiltinLoc(BLoc), RParenLoc(RP) {} 1872d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 187344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 187444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 187544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 187644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 18777f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType1() const { return Type1; } 187844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType1(QualType T) { Type1 = T; } 18797f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType2() const { return Type2; } 188044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType2(QualType T) { Type2 = T; } 1881ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 188244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 188344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 188444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 188544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 188644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 188744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 1888d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 1889363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 1890d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1891d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 1892d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff return T->getStmtClass() == TypesCompatibleExprClass; 1893d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1894d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 18951237c673c07f9d827129ba02720108816abde562Ted Kremenek 18961237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18971237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18981237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1899d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 1900d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 1901d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 1902d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 1903d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 1904d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 1905d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 1906d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 1907d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 1908d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 1909d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1910d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 1911d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 1912d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 1913d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 19145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 1915d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 1916d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1917888376a2bbcfc2f047902249f8455918e2489ae1Nate Begemanprotected: 1918888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman virtual void DoDestroy(ASTContext &C); 1919888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman 1920d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 1921a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 1922d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman QualType Type, SourceLocation BLoc, 1923d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation RP) : 1924d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr(ShuffleVectorExprClass, Type), BuiltinLoc(BLoc), 1925f809e3bd0c3d063f22ba34981072dae306ca9272Ted Kremenek RParenLoc(RP), NumExprs(nexpr) { 1926a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman 1927a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 1928d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 1929d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 1930d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 193194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 193294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 193394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit ShuffleVectorExpr(EmptyShell Empty) 193494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 193594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 193694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 193794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 193894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 193994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 194094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 194194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 1942d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 1943d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 1944d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1945d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 1946d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return T->getStmtClass() == ShuffleVectorExprClass; 1947d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1948d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 1949d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1950888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman ~ShuffleVectorExpr() {} 1951d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1952d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 1953d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 1954d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 1955d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 1956d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1957d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 1958d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 1959d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 19605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1961d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1962d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 1963d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 19645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1965d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1966888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman 1967888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 196894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 1969dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 1970dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 19719a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 1972d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1973d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1974d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 1975d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 1976d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 1977d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 1978d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1979d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 1980d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// This AST node is similar to the conditional operator (?:) in C, with 1981d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 19827976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 19837976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 19847976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 19857976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 19867976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 19877976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 1988d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 19891237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 19905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 1991d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 1992d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 1993d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 1994d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation RP) 1995d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff : Expr(ChooseExprClass, t), 19961237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 19971237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 19981237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 19991237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 20001237c673c07f9d827129ba02720108816abde562Ted Kremenek } 20017976932a1c256d447316ffac58e9821417725e34Eli Friedman 200244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 200344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 200444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 20057976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 20067976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 200727437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 20087976932a1c256d447316ffac58e9821417725e34Eli Friedman 20097976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 20107976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 20117976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 20127976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 20137976932a1c256d447316ffac58e9821417725e34Eli Friedman } 20147976932a1c256d447316ffac58e9821417725e34Eli Friedman 20155549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 201644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 20175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 201844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 20195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 202044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 202144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 202244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 202344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 202444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 202544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 202644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 20271237c673c07f9d827129ba02720108816abde562Ted Kremenek 2028d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2029d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2030d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2031d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 2032d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return T->getStmtClass() == ChooseExprClass; 2033d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2034d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 20351237c673c07f9d827129ba02720108816abde562Ted Kremenek 20361237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 20371237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 20381237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2039d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2040d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 20412d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 20422d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 20432d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 20442d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 20452d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 20462d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 20472d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 20482d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 20492d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 20502d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 20512d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 20522d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor GNUNullExpr(QualType Ty, SourceLocation Loc) 20532d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor : Expr(GNUNullExprClass, Ty), TokenLoc(Loc) { } 20542d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 205544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 205644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 205744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 20582d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 20592d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 206044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 20612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 20622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 20632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 20642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 20652d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 20662d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return T->getStmtClass() == GNUNullExprClass; 20672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 20682d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 20692d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 20702d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 20712d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 20722d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 20732d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 20742d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 20757c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson/// VAArgExpr, used for the builtin function __builtin_va_start. 20767c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 20775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 20787c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 20797c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 20807c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 20817c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson : Expr(VAArgExprClass, t), 20827c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson Val(e), 20837c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 20847c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 20857c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 2086d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Create an empty __builtin_va_start expression. 2087d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2088d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 20895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 20905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2091d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2092d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2093d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2094d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 2095d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2096d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2097d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2098d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 20997c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 21007c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 21017c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 21027c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 21037c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 21047c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 21057c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 21067c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 21077c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 21087c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 21097c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_end(); 21107c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 21117c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 21124c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 21134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 21144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 21154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 21164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 21174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 21184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 21194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 21204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2121196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 21224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 21234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 21244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 21254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 21264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 21274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 21284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 21294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2130196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 21314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 21324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 21334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 21344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 21354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 21364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 21374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 21383498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 21394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 21404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 21414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2142196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 21434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 21444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 21454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 21464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 21474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 21484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 214966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 215041ef0c3472a3d09c29bc1792f3d26842f2b8a695Douglas Gregor // FIXME: Eliminate this vector in favor of ASTContext allocation 21515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek std::vector<Stmt *> InitExprs; 215266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 2153418f6c7d142e5ff4607f70cd8431d008442bafe9Chris Lattner 21544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 21554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 21564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 21574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 21580bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 21590bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 21600bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 21610bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2162a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2163a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2164a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2165a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 216666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 216766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson InitListExpr(SourceLocation lbraceloc, Expr **initexprs, unsigned numinits, 21684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation rbraceloc); 2169d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2170d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2171d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit InitListExpr(EmptyShell Empty) : Expr(InitListExprClass, Empty) { } 217266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 2173c5ae899b4bbf65488445316c63168079177db0edSteve Naroff unsigned getNumInits() const { return InitExprs.size(); } 217466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 217566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson const Expr* getInit(unsigned Init) const { 2176c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 21774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 217866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 217966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 218066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson Expr* getInit(unsigned Init) { 2181c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 21824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 218366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 218466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 21859e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff void setInit(unsigned Init, Expr *expr) { 2186c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 21879e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 21889e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2189c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2190fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2191fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor void reserveInits(unsigned NumInits); 2192fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor 21934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 21944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 21954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 21964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 21974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 21984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 21994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 22004c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 22014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 22024c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 22034c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 22044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 22054c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 22064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 22074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 22084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor Expr *updateInit(unsigned Init, Expr *expr); 2209c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 22100bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 22110bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 22120bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 22130bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 22140bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 22150bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 22160bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 22170bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 22180bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2219c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 2220c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 2221b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 2222b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 2223b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 22249e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff 2225d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 2226d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 2227d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 222887fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 222987fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 22304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 22314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 22324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 22334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 22344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 22354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 22364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2237a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 2238d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void sawArrayRangeDesignator(bool ARD = true) { 2239d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 2240a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 2241a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 224266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 224366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 224466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 224566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 224666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return T->getStmtClass() == InitListExprClass; 224766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 224866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 224966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 225066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 225166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 225266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 22536336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenek 22547fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::iterator iterator; 22557fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::reverse_iterator reverse_iterator; 22567fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek 22577fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator begin() { return InitExprs.begin(); } 22587fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator end() { return InitExprs.end(); } 22597fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 22607fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rend() { return InitExprs.rend(); } 226166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 226266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 226305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 226405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 226505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 226605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 226705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 226805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 226905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 227005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 227105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 227205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 227305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 227405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 227505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 227605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 227705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 227805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 227905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 228005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 228105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 228205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 228305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 2284ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 2285ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 2286ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 2287ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2288ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 228905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 229005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 229105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 229205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2293eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 229405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 2295eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 229605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 229705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 229805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 229905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2300ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 2301ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 2302ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 2303ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 230405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 230505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 230605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 230705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 230805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2309ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 231005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor DesignatedInitExpr(QualType Ty, unsigned NumDesignators, 2311ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 2312eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 23139ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 23149ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 231505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2316d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 2317d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 2318d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 2319d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 232042602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 232142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext &C); 232242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 232305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 232405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 232505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 232605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 232705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 232805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 232905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 233005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 233105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 233205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 233305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 233405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 233505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 233605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 233705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 233805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 233905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 234005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 234105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 234205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 234305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 234405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 234505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 234605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 234705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 234805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 234905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 235005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 235105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 235205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned RBracketLoc; 235305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 235405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 235505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 235605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 235705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 235805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 235905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 236005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 236105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 236205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 236305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 236405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 236505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 236605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 236705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 236805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 236905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 237005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 237105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 237205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 237305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 237405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 237505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 237605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 237705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 2378ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 2379ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 238005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 238105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 238205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation FieldLoc) 238305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 238405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 238505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 238605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 238705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 238805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 238905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 239005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(unsigned Index, SourceLocation LBracketLoc, 239105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 239205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 239305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 239405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 239505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 239605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 239705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 239805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 239905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 240005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(unsigned Index, SourceLocation LBracketLoc, 240105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 240205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 240305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 240405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 240505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 240605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 240705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 240805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 240905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 241005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 241105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 241205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 241305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 241405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 241505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 241605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 241705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 241805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 241905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 242005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 242105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 242205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 242305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 242405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 242505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 242605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 242705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 242887f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 242987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 243087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 243187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 243287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 243305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 243405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 243505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 243605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 243705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 243805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 243905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 244005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 244105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 244205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 244305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 244405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 244505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 244605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 244705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 244805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 244905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 245005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 245105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 245205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 245305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 245405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 24554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2456d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 2457d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 2458d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 2459d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 2460d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2461d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 24624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 24634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 24644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 24654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 24664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 24674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 246805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 246905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 247005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 247105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 247205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 247305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 2474eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 247505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2476d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 2477d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 247805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 247905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 248005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 248105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 248205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 2483ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 2484ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_end() { 2485ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor return Designators + NumDesignators; 2486ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 248705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2488711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 2489711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 2490d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setDesignators(const Designator *Desigs, unsigned NumDesigs); 2491d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 249205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 249305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 249405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 249505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 249605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 249705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 249805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 2499d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 250005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 250105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 2502eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 2503eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 2504d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 250505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 250605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 250705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getInit() const { 250805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 250905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 251005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 251105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 251205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 251305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 251405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2515d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 2516d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 2517d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 2518d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 2519d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 2520d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2521d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 2522d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2523d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2524d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2525d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 2526d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2527d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2528d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 2529d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2530d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2531d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2532d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 2533d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2534d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2535ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 2536ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 2537ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor void ExpandDesignator(unsigned Idx, const Designator *First, 2538ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 2539ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 254005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 254105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 254205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 254305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return T->getStmtClass() == DesignatedInitExprClass; 254405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 254505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 254605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 254705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 254805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 25493498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_end(); 25503498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 25513498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 25523498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 25533498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 25543498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 25551a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 25561a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 25573498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 25581a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 25591a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 25603498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorclass ImplicitValueInitExpr : public Expr { 25613498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 25623498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor explicit ImplicitValueInitExpr(QualType ty) 25633498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor : Expr(ImplicitValueInitExprClass, ty) { } 25643498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 2565d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 2566d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 2567d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 2568d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 25693498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const Stmt *T) { 25703498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 25713498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 25723498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 25733498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 25743498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 25753498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 25763498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 25773498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 25783498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 25793498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 258005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_end(); 258105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 258205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 25832ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 25842ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 25852ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 25862ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 25872ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 25882ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 25892ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanprotected: 25902ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual void DoDestroy(ASTContext& C); 25912ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 25922ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 25932ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 25942ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 25952ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 25962ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman ~ParenListExpr() {} 25972ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 25982ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 25992ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman //explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 26002ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26012ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 26022ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26032ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman const Expr* getExpr(unsigned Init) const { 26042ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 26052ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 26062ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 26072ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26082ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Expr* getExpr(unsigned Init) { 26092ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 26102ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 26112ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 26122ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 261383ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 261483ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor 26152ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 26162ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 26172ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26182ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 26192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 26202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 26212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 26222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return T->getStmtClass() == ParenListExprClass; 26232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 26242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 26252ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26262ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 26272ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 26282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 26292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 26302ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26312ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26324eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 26334eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 26344eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 26354eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 2636a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2637a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 2638a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 2639a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 2640a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 264173525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 264273525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 264373525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 2644a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 2645a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 2646d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 2647a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 2648a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 2649a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 2650a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 2651a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(ExtVectorElementExprClass, ty), 2652d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 2653a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2654d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 2655d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 2656d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 2657d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2658a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 2659a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 2660d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 2661d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2662d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 2663d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 2664d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2665d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 2666d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 2667d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2668a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 2669a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 2670a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2671a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 2672a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 2673a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 2674a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2675a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 2676a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 2677a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 2678a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2679a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 2680a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 2681a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 2682a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 26832140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 26842140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 26852140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 26862140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner 2687a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const Stmt *T) { 2688a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return T->getStmtClass() == ExtVectorElementExprClass; 2689a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 2690a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 2691a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2692a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 2693a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 2694a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 2695a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 2696a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2697a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 269856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 26999c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 27004eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 270156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 270256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 2703b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 27044eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 2705b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 2706b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump : Expr(BlockExprClass, ty), 2707b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 27089c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 270984af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 271084af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 271184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 2712d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 271356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 271484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 271584af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 271656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 271756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 271856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 271956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 27209c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 27219c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 272256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 27239c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 27249c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 272556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 272656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 272756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 2728b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 27295b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 2730b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 273184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 2732b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 27334eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const Stmt *T) { 27349c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 27354eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 27364eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 27374eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 27384eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 27394eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 27404eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 27414eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 27429c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 27434eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 27444eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 27454eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 27464eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *D; 27474eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 27487d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 27497d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 27504eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 27517d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef, 27527d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool constAdded = false) : 27537d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian Expr(BlockDeclRefExprClass, t), D(d), Loc(l), IsByRef(ByRef), 27547d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian ConstQualAdded(constAdded) {} 275594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 275694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 275794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 275894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 275994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 27604eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 27614eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 27624eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 276394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 276494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 276594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 276694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 276794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 27684eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 27694eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 27704eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 277194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 27727d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian 27737d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 27747d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 277594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 27764eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const Stmt *T) { 27774eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff return T->getStmtClass() == BlockDeclRefExprClass; 27784eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 27794eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 27804eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 27814eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 27824eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 27834eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 27844eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 27854eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 27865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 27875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2789